* [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
@ 2018-02-15 13:51 Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper Vladimir Sementsov-Ogievskiy
` (13 more replies)
0 siblings, 14 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Hi all.
Here is minimal realization of base:allocation context of NBD
block-status extension, which allows to get block status through
NBD.
Vladimir Sementsov-Ogievskiy (9):
nbd/server: add nbd_opt_invalid helper
nbd: change indenting in nbd.h
nbd: BLOCK_STATUS for standard get_block_status function: server part
block/nbd-client: save first fatal error in nbd_iter_error
nbd/client: fix error messages in nbd_handle_reply_err
nbd: BLOCK_STATUS for standard get_block_status function: client part
iotests.py: tiny refactor: move system imports up
iotests: add file_path helper
iotests: new test 206 for NBD BLOCK_STATUS
block/nbd-client.h | 5 +
include/block/nbd.h | 58 +++++--
block/nbd-client.c | 143 ++++++++++++++++-
block/nbd.c | 3 +
nbd/client.c | 128 ++++++++++++++-
nbd/common.c | 10 ++
nbd/server.c | 360 ++++++++++++++++++++++++++++++++++++++++--
tests/qemu-iotests/140.out | 2 +-
tests/qemu-iotests/143.out | 2 +-
tests/qemu-iotests/205 | 3 +-
tests/qemu-iotests/206 | 34 ++++
tests/qemu-iotests/206.out | 2 +
tests/qemu-iotests/group | 1 +
tests/qemu-iotests/iotests.py | 37 ++++-
14 files changed, 749 insertions(+), 39 deletions(-)
create mode 100644 tests/qemu-iotests/206
create mode 100644 tests/qemu-iotests/206.out
--
2.11.1
^ permalink raw reply [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-15 22:01 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h Vladimir Sementsov-Ogievskiy
` (12 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
NBD_REP_ERR_INVALID is often parameter to nbd_opt_drop and it would
be used more in following patches. So, let's add a helper.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
nbd/server.c | 50 ++++++++++++++++++++++++++++++++++++--------------
1 file changed, 36 insertions(+), 14 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index 112e3f69df..b9860a6dcf 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -218,22 +218,46 @@ nbd_negotiate_send_rep_err(NBDClient *client, uint32_t type,
/* Drop remainder of the current option, and send a reply with the
* given error type and message. Return -errno on read or write
* failure; or 0 if connection is still live. */
-static int GCC_FMT_ATTR(4, 5)
-nbd_opt_drop(NBDClient *client, uint32_t type, Error **errp,
- const char *fmt, ...)
+static int GCC_FMT_ATTR(4, 0)
+nbd_opt_vdrop(NBDClient *client, uint32_t type, Error **errp,
+ const char *fmt, va_list va)
{
int ret = nbd_drop(client->ioc, client->optlen, errp);
- va_list va;
client->optlen = 0;
if (!ret) {
- va_start(va, fmt);
ret = nbd_negotiate_send_rep_verr(client, type, errp, fmt, va);
- va_end(va);
}
return ret;
}
+static int GCC_FMT_ATTR(4, 5)
+nbd_opt_drop(NBDClient *client, uint32_t type, Error **errp,
+ const char *fmt, ...)
+{
+ int ret;
+ va_list va;
+
+ va_start(va, fmt);
+ ret = nbd_opt_vdrop(client, type, errp, fmt, va);
+ va_end(va);
+
+ return ret;
+}
+
+static int GCC_FMT_ATTR(3, 4)
+nbd_opt_invalid(NBDClient *client, Error **errp, const char *fmt, ...)
+{
+ int ret;
+ va_list va;
+
+ va_start(va, fmt);
+ ret = nbd_opt_vdrop(client, NBD_REP_ERR_INVALID, errp, fmt, va);
+ va_end(va);
+
+ return ret;
+}
+
/* Read size bytes from the unparsed payload of the current option.
* Return -errno on I/O error, 0 if option was completely handled by
* sending a reply about inconsistent lengths, or 1 on success. */
@@ -241,9 +265,9 @@ static int nbd_opt_read(NBDClient *client, void *buffer, size_t size,
Error **errp)
{
if (size > client->optlen) {
- return nbd_opt_drop(client, NBD_REP_ERR_INVALID, errp,
- "Inconsistent lengths in option %s",
- nbd_opt_lookup(client->opt));
+ return nbd_opt_invalid(client, errp,
+ "Inconsistent lengths in option %s",
+ nbd_opt_lookup(client->opt));
}
client->optlen -= size;
return qio_channel_read_all(client->ioc, buffer, size, errp) < 0 ? -EIO : 1;
@@ -398,9 +422,8 @@ static int nbd_reject_length(NBDClient *client, bool fatal, Error **errp)
int ret;
assert(client->optlen);
- ret = nbd_opt_drop(client, NBD_REP_ERR_INVALID, errp,
- "option '%s' has unexpected length",
- nbd_opt_lookup(client->opt));
+ ret = nbd_opt_invalid(client, errp, "option '%s' has unexpected length",
+ nbd_opt_lookup(client->opt));
if (fatal && !ret) {
error_setg(errp, "option '%s' has unexpected length",
nbd_opt_lookup(client->opt));
@@ -438,8 +461,7 @@ static int nbd_negotiate_handle_info(NBDClient *client, uint16_t myflags,
}
be32_to_cpus(&namelen);
if (namelen >= sizeof(name)) {
- return nbd_opt_drop(client, NBD_REP_ERR_INVALID, errp,
- "name too long for qemu");
+ return nbd_opt_invalid(client, errp, "name too long for qemu");
}
rc = nbd_opt_read(client, name, namelen, errp);
if (rc <= 0) {
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-15 22:03 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part Vladimir Sementsov-Ogievskiy
` (11 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Prepared indenting for the following patch.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
include/block/nbd.h | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/include/block/nbd.h b/include/block/nbd.h
index fc50003003..ef1698914b 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -128,21 +128,21 @@ typedef struct NBDStructuredError {
#define NBD_FLAG_C_NO_ZEROES (1 << 1) /* End handshake without zeroes. */
/* Option requests. */
-#define NBD_OPT_EXPORT_NAME (1)
-#define NBD_OPT_ABORT (2)
-#define NBD_OPT_LIST (3)
-/* #define NBD_OPT_PEEK_EXPORT (4) not in use */
-#define NBD_OPT_STARTTLS (5)
-#define NBD_OPT_INFO (6)
-#define NBD_OPT_GO (7)
-#define NBD_OPT_STRUCTURED_REPLY (8)
+#define NBD_OPT_EXPORT_NAME (1)
+#define NBD_OPT_ABORT (2)
+#define NBD_OPT_LIST (3)
+/* #define NBD_OPT_PEEK_EXPORT (4) not in use */
+#define NBD_OPT_STARTTLS (5)
+#define NBD_OPT_INFO (6)
+#define NBD_OPT_GO (7)
+#define NBD_OPT_STRUCTURED_REPLY (8)
/* Option reply types. */
#define NBD_REP_ERR(value) ((UINT32_C(1) << 31) | (value))
-#define NBD_REP_ACK (1) /* Data sending finished. */
-#define NBD_REP_SERVER (2) /* Export description. */
-#define NBD_REP_INFO (3) /* NBD_OPT_INFO/GO. */
+#define NBD_REP_ACK (1) /* Data sending finished. */
+#define NBD_REP_SERVER (2) /* Export description. */
+#define NBD_REP_INFO (3) /* NBD_OPT_INFO/GO. */
#define NBD_REP_ERR_UNSUP NBD_REP_ERR(1) /* Unknown option */
#define NBD_REP_ERR_POLICY NBD_REP_ERR(2) /* Server denied */
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-15 23:02 ` Eric Blake
2018-02-16 13:21 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error Vladimir Sementsov-Ogievskiy
` (10 subsequent siblings)
13 siblings, 2 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Minimal realization: only one extent in server answer is supported.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
include/block/nbd.h | 33 ++++++
nbd/common.c | 10 ++
nbd/server.c | 310 +++++++++++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 352 insertions(+), 1 deletion(-)
diff --git a/include/block/nbd.h b/include/block/nbd.h
index ef1698914b..b16215d17a 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -41,6 +41,12 @@ struct NBDOptionReply {
} QEMU_PACKED;
typedef struct NBDOptionReply NBDOptionReply;
+typedef struct NBDOptionReplyMetaContext {
+ NBDOptionReply h; /* h.type = NBD_REP_META_CONTEXT, h.length > 4 */
+ uint32_t context_id;
+ /* meta context name follows */
+} QEMU_PACKED NBDOptionReplyMetaContext;
+
/* Transmission phase structs
*
* Note: these are _NOT_ the same as the network representation of an NBD
@@ -105,6 +111,19 @@ typedef struct NBDStructuredError {
uint16_t message_length;
} QEMU_PACKED NBDStructuredError;
+/* Header of NBD_REPLY_TYPE_BLOCK_STATUS */
+typedef struct NBDStructuredMeta {
+ NBDStructuredReplyChunk h; /* h.length >= 12 (at least one extent) */
+ uint32_t context_id;
+ /* extents follows */
+} QEMU_PACKED NBDStructuredMeta;
+
+/* Extent chunk for NBD_REPLY_TYPE_BLOCK_STATUS */
+typedef struct NBDExtent {
+ uint32_t length;
+ uint32_t flags; /* NBD_STATE_* */
+} QEMU_PACKED NBDExtent;
+
/* Transmission (export) flags: sent from server to client during handshake,
but describe what will happen during transmission */
#define NBD_FLAG_HAS_FLAGS (1 << 0) /* Flags are there */
@@ -136,6 +155,8 @@ typedef struct NBDStructuredError {
#define NBD_OPT_INFO (6)
#define NBD_OPT_GO (7)
#define NBD_OPT_STRUCTURED_REPLY (8)
+#define NBD_OPT_LIST_META_CONTEXT (9)
+#define NBD_OPT_SET_META_CONTEXT (10)
/* Option reply types. */
#define NBD_REP_ERR(value) ((UINT32_C(1) << 31) | (value))
@@ -143,6 +164,7 @@ typedef struct NBDStructuredError {
#define NBD_REP_ACK (1) /* Data sending finished. */
#define NBD_REP_SERVER (2) /* Export description. */
#define NBD_REP_INFO (3) /* NBD_OPT_INFO/GO. */
+#define NBD_REP_META_CONTEXT (4) /* NBD_OPT_{LIST,SET}_META_CONTEXT */
#define NBD_REP_ERR_UNSUP NBD_REP_ERR(1) /* Unknown option */
#define NBD_REP_ERR_POLICY NBD_REP_ERR(2) /* Server denied */
@@ -163,6 +185,10 @@ typedef struct NBDStructuredError {
#define NBD_CMD_FLAG_FUA (1 << 0) /* 'force unit access' during write */
#define NBD_CMD_FLAG_NO_HOLE (1 << 1) /* don't punch hole on zero run */
#define NBD_CMD_FLAG_DF (1 << 2) /* don't fragment structured read */
+#define NBD_CMD_FLAG_REQ_ONE (1 << 3) /* only one extent in BLOCK_STATUS
+ * reply chunk */
+
+#define NBD_META_ID_BASE_ALLOCATION 0
/* Supported request types */
enum {
@@ -173,6 +199,7 @@ enum {
NBD_CMD_TRIM = 4,
/* 5 reserved for failed experiment NBD_CMD_CACHE */
NBD_CMD_WRITE_ZEROES = 6,
+ NBD_CMD_BLOCK_STATUS = 7,
};
#define NBD_DEFAULT_PORT 10809
@@ -200,9 +227,15 @@ enum {
#define NBD_REPLY_TYPE_NONE 0
#define NBD_REPLY_TYPE_OFFSET_DATA 1
#define NBD_REPLY_TYPE_OFFSET_HOLE 2
+#define NBD_REPLY_TYPE_BLOCK_STATUS 5
#define NBD_REPLY_TYPE_ERROR NBD_REPLY_ERR(1)
#define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_ERR(2)
+/* Flags for extents (NBDExtent.flags) of NBD_REPLY_TYPE_BLOCK_STATUS,
+ * for base:allocation meta context */
+#define NBD_STATE_HOLE (1 << 0)
+#define NBD_STATE_ZERO (1 << 1)
+
static inline bool nbd_reply_type_is_error(int type)
{
return type & (1 << 15);
diff --git a/nbd/common.c b/nbd/common.c
index 6295526dd1..8c95c1d606 100644
--- a/nbd/common.c
+++ b/nbd/common.c
@@ -75,6 +75,10 @@ const char *nbd_opt_lookup(uint32_t opt)
return "go";
case NBD_OPT_STRUCTURED_REPLY:
return "structured reply";
+ case NBD_OPT_LIST_META_CONTEXT:
+ return "list meta context";
+ case NBD_OPT_SET_META_CONTEXT:
+ return "set meta context";
default:
return "<unknown>";
}
@@ -90,6 +94,8 @@ const char *nbd_rep_lookup(uint32_t rep)
return "server";
case NBD_REP_INFO:
return "info";
+ case NBD_REP_META_CONTEXT:
+ return "meta context";
case NBD_REP_ERR_UNSUP:
return "unsupported";
case NBD_REP_ERR_POLICY:
@@ -144,6 +150,8 @@ const char *nbd_cmd_lookup(uint16_t cmd)
return "trim";
case NBD_CMD_WRITE_ZEROES:
return "write zeroes";
+ case NBD_CMD_BLOCK_STATUS:
+ return "block status";
default:
return "<unknown>";
}
@@ -159,6 +167,8 @@ const char *nbd_reply_type_lookup(uint16_t type)
return "data";
case NBD_REPLY_TYPE_OFFSET_HOLE:
return "hole";
+ case NBD_REPLY_TYPE_BLOCK_STATUS:
+ return "block status";
case NBD_REPLY_TYPE_ERROR:
return "generic error";
case NBD_REPLY_TYPE_ERROR_OFFSET:
diff --git a/nbd/server.c b/nbd/server.c
index b9860a6dcf..f2a750eb97 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -82,6 +82,15 @@ struct NBDExport {
static QTAILQ_HEAD(, NBDExport) exports = QTAILQ_HEAD_INITIALIZER(exports);
+/* NBDExportMetaContexts represents list of selected by
+ * NBD_OPT_SET_META_CONTEXT contexts to be exported. */
+typedef struct NBDExportMetaContexts {
+ char export_name[NBD_MAX_NAME_SIZE + 1];
+ bool valid; /* means that negotiation of the option finished without
+ errors */
+ bool base_allocation; /* export base:allocation context (block status) */
+} NBDExportMetaContexts;
+
struct NBDClient {
int refcount;
void (*close_fn)(NBDClient *client, bool negotiated);
@@ -102,6 +111,7 @@ struct NBDClient {
bool closing;
bool structured_reply;
+ NBDExportMetaContexts export_meta;
uint32_t opt; /* Current option being negotiated */
uint32_t optlen; /* remaining length of data in ioc for the option being
@@ -636,6 +646,201 @@ static QIOChannel *nbd_negotiate_handle_starttls(NBDClient *client,
return QIO_CHANNEL(tioc);
}
+/* nbd_alloc_read_size_string
+ *
+ * Read string in format
+ * uint32_t len
+ * len bytes string (not 0-terminated)
+ * String is allocated and pointer returned as @buf
+ *
+ * Return -errno on I/O error, 0 if option was completely handled by
+ * sending a reply about inconsistent lengths, or 1 on success. */
+static int nbd_alloc_read_size_string(NBDClient *client, char **buf,
+ Error **errp)
+{
+ int ret;
+ uint32_t len;
+
+ ret = nbd_opt_read(client, &len, sizeof(len), errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ cpu_to_be32s(&len);
+
+ *buf = g_try_malloc(len + 1);
+ if (*buf == NULL) {
+ error_setg(errp, "No memory");
+ return -ENOMEM;
+ }
+ (*buf)[len] = '\0';
+
+ ret = nbd_opt_read(client, *buf, len, errp);
+ if (ret <= 0) {
+ g_free(*buf);
+ *buf = NULL;
+ }
+
+ return ret;
+}
+
+/* nbd_read_size_string
+ *
+ * Read string in format
+ * uint32_t len
+ * len bytes string (not 0-terminated)
+ *
+ * @buf should be enough to store @max_len+1
+ *
+ * Return -errno on I/O error, 0 if option was completely handled by
+ * sending a reply about inconsistent lengths, or 1 on success. */
+static int nbd_read_size_string(NBDClient *client, char *buf,
+ uint32_t max_len, Error **errp)
+{
+ int ret;
+ uint32_t len;
+
+ ret = nbd_opt_read(client, &len, sizeof(len), errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ cpu_to_be32s(&len);
+
+ if (len > max_len) {
+ return nbd_opt_invalid(client, errp, "Invalid string length: %u", len);
+ }
+
+ ret = nbd_opt_read(client, buf, len, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ buf[len] = '\0';
+
+ return 1;
+}
+
+static int nbd_negotiate_send_meta_context(NBDClient *client,
+ const char *context,
+ uint32_t context_id,
+ Error **errp)
+{
+ NBDOptionReplyMetaContext opt;
+ struct iovec iov[] = {
+ {.iov_base = &opt, .iov_len = sizeof(opt)},
+ {.iov_base = (void *)context, .iov_len = strlen(context)}
+ };
+
+ set_be_option_rep(&opt.h, client->opt, NBD_REP_META_CONTEXT,
+ sizeof(opt) - sizeof(opt.h) + iov[1].iov_len);
+ stl_be_p(&opt.context_id, context_id);
+
+ return qio_channel_writev_all(client->ioc, iov, 2, errp) < 0 ? -EIO : 0;
+}
+
+static void nbd_meta_base_query(NBDExportMetaContexts *meta, const char *query)
+{
+ if (query[0] == '\0' || strcmp(query, "allocation") == 0) {
+ /* Note: empty query should select all contexts within base
+ * namespace. */
+ meta->base_allocation = true;
+ }
+}
+
+/* nbd_negotiate_meta_query
+ * Return -errno on I/O error, 0 if option was completely handled by
+ * sending a reply about inconsistent lengths, or 1 on success. */
+static int nbd_negotiate_meta_query(NBDClient *client,
+ NBDExportMetaContexts *meta, Error **errp)
+{
+ int ret;
+ char *query, *colon, *namespace, *subquery;
+
+ ret = nbd_alloc_read_size_string(client, &query, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+
+ colon = strchr(query, ':');
+ if (colon == NULL) {
+ ret = nbd_opt_invalid(client, errp, "no colon in query");
+ goto out;
+ }
+ *colon = '\0';
+ namespace = query;
+ subquery = colon + 1;
+
+ if (strcmp(namespace, "base") == 0) {
+ nbd_meta_base_query(meta, subquery);
+ }
+
+out:
+ g_free(query);
+ return ret;
+}
+
+/* nbd_negotiate_meta_queries
+ * Handle NBD_OPT_LIST_META_CONTEXT and NBD_OPT_SET_META_CONTEXT
+ *
+ * Return -errno on I/O error, 0 if option was completely handled by
+ * sending a reply about inconsistent lengths, or 1 on success. */
+static int nbd_negotiate_meta_queries(NBDClient *client,
+ NBDExportMetaContexts *meta, Error **errp)
+{
+ int ret;
+ NBDExport *exp;
+ NBDExportMetaContexts local_meta;
+ uint32_t nb_queries;
+ int i;
+
+ assert(client->structured_reply);
+
+ if (meta == NULL) {
+ meta = &local_meta;
+ }
+
+ memset(meta, 0, sizeof(*meta));
+
+ ret = nbd_read_size_string(client, meta->export_name,
+ NBD_MAX_NAME_SIZE, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+
+ exp = nbd_export_find(meta->export_name);
+ if (exp == NULL) {
+ return nbd_opt_invalid(client, errp,
+ "export '%s' not present", meta->export_name);
+ }
+
+ ret = nbd_opt_read(client, &nb_queries, sizeof(nb_queries), errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ cpu_to_be32s(&nb_queries);
+
+ for (i = 0; i < nb_queries; ++i) {
+ ret = nbd_negotiate_meta_query(client, meta, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ }
+
+ if (meta->base_allocation) {
+ ret = nbd_negotiate_send_meta_context(client, "base:allocation",
+ NBD_META_ID_BASE_ALLOCATION,
+ errp);
+ if (ret < 0) {
+ return ret;
+ }
+ }
+
+ ret = nbd_negotiate_send_rep(client, NBD_REP_ACK, errp);
+ if (ret == 0) {
+ meta->valid = true;
+ }
+
+ return ret;
+}
+
/* nbd_negotiate_options
* Process all NBD_OPT_* client option commands, during fixed newstyle
* negotiation.
@@ -826,6 +1031,22 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
}
break;
+ case NBD_OPT_LIST_META_CONTEXT:
+ case NBD_OPT_SET_META_CONTEXT:
+ if (!client->structured_reply) {
+ ret = nbd_opt_invalid(
+ client, errp,
+ "request option '%s' when structured reply "
+ "is not negotiated", nbd_opt_lookup(option));
+ } else if (option == NBD_OPT_LIST_META_CONTEXT) {
+ ret = nbd_negotiate_meta_queries(client, NULL, errp);
+ } else {
+ ret = nbd_negotiate_meta_queries(client,
+ &client->export_meta,
+ errp);
+ }
+ break;
+
default:
ret = nbd_opt_drop(client, NBD_REP_ERR_UNSUP, errp,
"Unsupported option 0x%" PRIx32 " (%s)",
@@ -1446,6 +1667,78 @@ static int coroutine_fn nbd_co_send_structured_error(NBDClient *client,
return nbd_co_send_iov(client, iov, 1 + !!iov[1].iov_len, errp);
}
+static int blockstatus_to_extent_be(BlockDriverState *bs, uint64_t offset,
+ uint64_t bytes, NBDExtent *extent)
+{
+ uint64_t tail_bytes = bytes;
+
+ while (tail_bytes) {
+ uint32_t flags;
+ int64_t num;
+ int ret = bdrv_block_status_above(bs, NULL, offset, tail_bytes, &num,
+ NULL, NULL);
+ if (ret < 0) {
+ return ret;
+ }
+
+ flags = (ret & BDRV_BLOCK_ALLOCATED ? 0 : NBD_STATE_HOLE) |
+ (ret & BDRV_BLOCK_ZERO ? NBD_STATE_ZERO : 0);
+
+ if (tail_bytes == bytes) {
+ extent->flags = flags;
+ }
+
+ if (flags != extent->flags) {
+ break;
+ }
+
+ offset += num;
+ tail_bytes -= num;
+ }
+
+ cpu_to_be32s(&extent->flags);
+ extent->length = cpu_to_be32(bytes - tail_bytes);
+
+ return 0;
+}
+
+/* nbd_co_send_extents
+ * @extents should be in big-endian */
+static int nbd_co_send_extents(NBDClient *client, uint64_t handle,
+ NBDExtent *extents, unsigned nb_extents,
+ uint32_t context_id, Error **errp)
+{
+ NBDStructuredMeta chunk;
+
+ struct iovec iov[] = {
+ {.iov_base = &chunk, .iov_len = sizeof(chunk)},
+ {.iov_base = extents, .iov_len = nb_extents * sizeof(extents[0])}
+ };
+
+ set_be_chunk(&chunk.h, NBD_REPLY_FLAG_DONE, NBD_REPLY_TYPE_BLOCK_STATUS,
+ handle, sizeof(chunk) - sizeof(chunk.h) + iov[1].iov_len);
+ stl_be_p(&chunk.context_id, context_id);
+
+ return nbd_co_send_iov(client, iov, 2, errp);
+}
+
+static int nbd_co_send_block_status(NBDClient *client, uint64_t handle,
+ BlockDriverState *bs, uint64_t offset,
+ uint64_t length, uint32_t context_id,
+ Error **errp)
+{
+ int ret;
+ NBDExtent extent;
+
+ ret = blockstatus_to_extent_be(bs, offset, length, &extent);
+ if (ret < 0) {
+ return nbd_co_send_structured_error(
+ client, handle, -ret, "can't get block status", errp);
+ }
+
+ return nbd_co_send_extents(client, handle, &extent, 1, context_id, errp);
+}
+
/* nbd_co_receive_request
* Collect a client request. Return 0 if request looks valid, -EIO to drop
* connection right away, and any other negative value to report an error to
@@ -1523,6 +1816,8 @@ static int nbd_co_receive_request(NBDRequestData *req, NBDRequest *request,
valid_flags |= NBD_CMD_FLAG_DF;
} else if (request->type == NBD_CMD_WRITE_ZEROES) {
valid_flags |= NBD_CMD_FLAG_NO_HOLE;
+ } else if (request->type == NBD_CMD_BLOCK_STATUS) {
+ valid_flags |= NBD_CMD_FLAG_REQ_ONE;
}
if (request->flags & ~valid_flags) {
error_setg(errp, "unsupported flags for command %s (got 0x%x)",
@@ -1650,6 +1945,19 @@ static coroutine_fn void nbd_trip(void *opaque)
}
break;
+ case NBD_CMD_BLOCK_STATUS:
+ if (client->export_meta.base_allocation) {
+ ret = nbd_co_send_block_status(req->client, request.handle,
+ blk_bs(exp->blk), request.from,
+ request.len,
+ NBD_META_ID_BASE_ALLOCATION,
+ &local_err);
+ } else {
+ ret = -EINVAL;
+ error_setg(&local_err, "CMD_BLOCK_STATUS not negotiated");
+ }
+
+ break;
default:
error_setg(&local_err, "invalid request type (%" PRIu32 ") received",
request.type);
@@ -1680,7 +1988,7 @@ reply:
ret = nbd_co_send_structured_done(req->client, request.handle,
&local_err);
}
- } else {
+ } else if (request.type != NBD_CMD_BLOCK_STATUS) {
ret = nbd_co_send_simple_reply(req->client, request.handle,
ret < 0 ? -ret : 0,
req->data, reply_data_len, &local_err);
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (2 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 17:35 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err Vladimir Sementsov-Ogievskiy
` (9 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
It is ok, that fatal error hides previous not fatal, but hiding
first fatal error is a bad feature.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
block/nbd-client.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/block/nbd-client.c b/block/nbd-client.c
index 9206652e45..b1cbe95b13 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -481,6 +481,7 @@ static coroutine_fn int nbd_co_receive_one_chunk(
typedef struct NBDReplyChunkIter {
int ret;
+ bool fatal;
Error *err;
bool done, only_structured;
} NBDReplyChunkIter;
@@ -490,11 +491,12 @@ static void nbd_iter_error(NBDReplyChunkIter *iter, bool fatal,
{
assert(ret < 0);
- if (fatal || iter->ret == 0) {
+ if ((fatal && !iter->fatal) || iter->ret == 0) {
if (iter->ret != 0) {
error_free(iter->err);
iter->err = NULL;
}
+ iter->fatal = fatal;
iter->ret = ret;
error_propagate(&iter->err, *local_err);
} else {
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (3 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 17:38 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part Vladimir Sementsov-Ogievskiy
` (8 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
1. NBD_REP_ERR_INVALID is not only about length, so, make message more
general
2. hex format is not very good: it's hard to read something like
"option a (set meta context)", so switch to dec.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
nbd/client.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/nbd/client.c b/nbd/client.c
index 89f80f9590..1f730341c0 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -180,22 +180,22 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
goto cleanup;
case NBD_REP_ERR_POLICY:
- error_setg(errp, "Denied by server for option %" PRIx32 " (%s)",
+ error_setg(errp, "Denied by server for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_INVALID:
- error_setg(errp, "Invalid data length for option %" PRIx32 " (%s)",
+ error_setg(errp, "Invalid parameters for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_PLATFORM:
- error_setg(errp, "Server lacks support for option %" PRIx32 " (%s)",
+ error_setg(errp, "Server lacks support for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_TLS_REQD:
- error_setg(errp, "TLS negotiation required before option %" PRIx32
+ error_setg(errp, "TLS negotiation required before option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
@@ -204,17 +204,17 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
break;
case NBD_REP_ERR_SHUTDOWN:
- error_setg(errp, "Server shutting down before option %" PRIx32 " (%s)",
+ error_setg(errp, "Server shutting down before option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_BLOCK_SIZE_REQD:
- error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIx32
+ error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
default:
- error_setg(errp, "Unknown error code when asking for option %" PRIx32
+ error_setg(errp, "Unknown error code when asking for option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
}
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (4 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 20:40 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up Vladimir Sementsov-Ogievskiy
` (7 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Minimal realization: only one extent in server answer is supported.
Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
Tests 140, 147 and 205 are fixed due to now server failed on searching
export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
block/nbd-client.h | 5 ++
include/block/nbd.h | 3 +
block/nbd-client.c | 139 +++++++++++++++++++++++++++++++++++++++++++++
block/nbd.c | 3 +
nbd/client.c | 114 +++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/140.out | 2 +-
tests/qemu-iotests/143.out | 2 +-
tests/qemu-iotests/205 | 3 +-
8 files changed, 268 insertions(+), 3 deletions(-)
diff --git a/block/nbd-client.h b/block/nbd-client.h
index 612c4c21a0..ca0cc141c0 100644
--- a/block/nbd-client.h
+++ b/block/nbd-client.h
@@ -61,4 +61,9 @@ void nbd_client_detach_aio_context(BlockDriverState *bs);
void nbd_client_attach_aio_context(BlockDriverState *bs,
AioContext *new_context);
+int64_t coroutine_fn nbd_client_co_get_block_status(BlockDriverState *bs,
+ int64_t sector_num,
+ int nb_sectors, int *pnum,
+ BlockDriverState **file);
+
#endif /* NBD_CLIENT_H */
diff --git a/include/block/nbd.h b/include/block/nbd.h
index b16215d17a..baf12e5428 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -262,6 +262,7 @@ struct NBDExportInfo {
/* In-out fields, set by client before nbd_receive_negotiate() and
* updated by server results during nbd_receive_negotiate() */
bool structured_reply;
+ bool base_allocation; /* base:allocation context for NBD_CMD_BLOCK_STATUS */
/* Set by server results during nbd_receive_negotiate() */
uint64_t size;
@@ -269,6 +270,8 @@ struct NBDExportInfo {
uint32_t min_block;
uint32_t opt_block;
uint32_t max_block;
+
+ uint32_t meta_base_allocation_id;
};
typedef struct NBDExportInfo NBDExportInfo;
diff --git a/block/nbd-client.c b/block/nbd-client.c
index b1cbe95b13..a80d69d3cd 100644
--- a/block/nbd-client.c
+++ b/block/nbd-client.c
@@ -228,6 +228,45 @@ static int nbd_parse_offset_hole_payload(NBDStructuredReplyChunk *chunk,
return 0;
}
+/* nbd_parse_blockstatus_payload
+ * support only one extent in reply and only for
+ * base:allocation context
+ */
+static int nbd_parse_blockstatus_payload(NBDClientSession *client,
+ NBDStructuredReplyChunk *chunk,
+ uint8_t *payload, uint64_t orig_length,
+ NBDExtent *extent, Error **errp)
+{
+ uint32_t context_id;
+
+ if (chunk->length != sizeof(context_id) + sizeof(extent)) {
+ error_setg(errp, "Protocol error: invalid payload for "
+ "NBD_REPLY_TYPE_BLOCK_STATUS");
+ return -EINVAL;
+ }
+
+ context_id = payload_advance32(&payload);
+ if (client->info.meta_base_allocation_id != context_id) {
+ error_setg(errp, "Protocol error: unexpected context id: %d for "
+ "NBD_REPLY_TYPE_BLOCK_STATUS, when negotiated context "
+ "id is %d", context_id,
+ client->info.meta_base_allocation_id);
+ return -EINVAL;
+ }
+
+ memcpy(extent, payload, sizeof(*extent));
+ be32_to_cpus(&extent->length);
+ be32_to_cpus(&extent->flags);
+
+ if (extent->length > orig_length) {
+ error_setg(errp, "Protocol error: server sent chunk exceeding requested"
+ " region");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/* nbd_parse_error_payload
* on success @errp contains message describing nbd error reply
*/
@@ -642,6 +681,61 @@ static int nbd_co_receive_cmdread_reply(NBDClientSession *s, uint64_t handle,
return iter.ret;
}
+static int nbd_co_receive_blockstatus_reply(NBDClientSession *s,
+ uint64_t handle, uint64_t length,
+ NBDExtent *extent, Error **errp)
+{
+ NBDReplyChunkIter iter;
+ NBDReply reply;
+ void *payload = NULL;
+ Error *local_err = NULL;
+ bool received = false;
+
+ NBD_FOREACH_REPLY_CHUNK(s, iter, handle, s->info.structured_reply,
+ NULL, &reply, &payload)
+ {
+ int ret;
+ NBDStructuredReplyChunk *chunk = &reply.structured;
+
+ assert(nbd_reply_is_structured(&reply));
+
+ switch (chunk->type) {
+ case NBD_REPLY_TYPE_BLOCK_STATUS:
+ if (received) {
+ s->quit = true;
+ error_setg(&local_err, "Several BLOCK_STATUS chunks in reply");
+ nbd_iter_error(&iter, true, -EINVAL, &local_err);
+ }
+ received = true;
+
+ ret = nbd_parse_blockstatus_payload(s, &reply.structured,
+ payload, length, extent,
+ &local_err);
+ if (ret < 0) {
+ s->quit = true;
+ nbd_iter_error(&iter, true, ret, &local_err);
+ }
+ break;
+ default:
+ if (!nbd_reply_type_is_error(chunk->type)) {
+ /* not allowed reply type */
+ s->quit = true;
+ error_setg(&local_err,
+ "Unexpected reply type: %d (%s) "
+ "for CMD_BLOCK_STATUS",
+ chunk->type, nbd_reply_type_lookup(chunk->type));
+ nbd_iter_error(&iter, true, -EINVAL, &local_err);
+ }
+ }
+
+ g_free(payload);
+ payload = NULL;
+ }
+
+ error_propagate(errp, iter.err);
+ return iter.ret;
+}
+
static int nbd_co_request(BlockDriverState *bs, NBDRequest *request,
QEMUIOVector *write_qiov)
{
@@ -784,6 +878,50 @@ int nbd_client_co_pdiscard(BlockDriverState *bs, int64_t offset, int bytes)
return nbd_co_request(bs, &request, NULL);
}
+int64_t coroutine_fn nbd_client_co_get_block_status(BlockDriverState *bs,
+ int64_t sector_num,
+ int nb_sectors, int *pnum,
+ BlockDriverState **file)
+{
+ int64_t ret;
+ NBDExtent extent;
+ NBDClientSession *client = nbd_get_client_session(bs);
+ Error *local_err = NULL;
+
+ uint64_t offset = sector_num << BDRV_SECTOR_BITS;
+ uint32_t bytes = nb_sectors << BDRV_SECTOR_BITS;
+
+ NBDRequest request = {
+ .type = NBD_CMD_BLOCK_STATUS,
+ .from = offset,
+ .len = bytes,
+ .flags = NBD_CMD_FLAG_REQ_ONE,
+ };
+
+ if (!client->info.base_allocation) {
+ *pnum = nb_sectors;
+ return BDRV_BLOCK_DATA;
+ }
+
+ ret = nbd_co_send_request(bs, &request, NULL);
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = nbd_co_receive_blockstatus_reply(client, request.handle, bytes,
+ &extent, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ }
+ if (ret < 0) {
+ return ret;
+ }
+
+ *pnum = extent.length >> BDRV_SECTOR_BITS;
+ return (extent.flags & NBD_STATE_HOLE ? 0 : BDRV_BLOCK_DATA) |
+ (extent.flags & NBD_STATE_ZERO ? BDRV_BLOCK_ZERO : 0);
+}
+
void nbd_client_detach_aio_context(BlockDriverState *bs)
{
NBDClientSession *client = nbd_get_client_session(bs);
@@ -828,6 +966,7 @@ int nbd_client_init(BlockDriverState *bs,
client->info.request_sizes = true;
client->info.structured_reply = true;
+ client->info.base_allocation = true;
ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), export,
tlscreds, hostname,
&client->ioc, &client->info, errp);
diff --git a/block/nbd.c b/block/nbd.c
index ef81a9f53b..72c90c3c27 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -583,6 +583,7 @@ static BlockDriver bdrv_nbd = {
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
.bdrv_refresh_filename = nbd_refresh_filename,
+ .bdrv_co_get_block_status = nbd_client_co_get_block_status,
};
static BlockDriver bdrv_nbd_tcp = {
@@ -602,6 +603,7 @@ static BlockDriver bdrv_nbd_tcp = {
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
.bdrv_refresh_filename = nbd_refresh_filename,
+ .bdrv_co_get_block_status = nbd_client_co_get_block_status,
};
static BlockDriver bdrv_nbd_unix = {
@@ -621,6 +623,7 @@ static BlockDriver bdrv_nbd_unix = {
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
.bdrv_refresh_filename = nbd_refresh_filename,
+ .bdrv_co_get_block_status = nbd_client_co_get_block_status,
};
static void bdrv_nbd_init(void)
diff --git a/nbd/client.c b/nbd/client.c
index 1f730341c0..61e012ecb0 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -594,6 +594,108 @@ static QIOChannel *nbd_receive_starttls(QIOChannel *ioc,
return QIO_CHANNEL(tioc);
}
+/* nbd_negotiate_simple_meta_context:
+ * Set one meta context. Simple means that reply must contain zero (not
+ * negotiated) or one (negotiated) contexts. More contexts would be considered
+ * as a protocol error.
+ * return 1 for successful negotiation, context_id is set
+ * 0 if operation is unsupported,
+ * -errno with errp set for any other error
+ */
+static int nbd_negotiate_simple_meta_context(QIOChannel *ioc,
+ const char *export,
+ const char *context,
+ uint32_t *context_id,
+ Error **errp)
+{
+ int ret;
+ NBDOptionReply reply;
+ uint32_t received_id;
+ bool received;
+ size_t export_len = strlen(export);
+ size_t context_len = strlen(context);
+ size_t data_len = 4 + export_len + 4 + 4 + context_len;
+
+ char *data = g_malloc(data_len);
+ char *p = data;
+
+ stl_be_p(p, export_len);
+ memcpy(p += 4, export, export_len);
+ stl_be_p(p += export_len, 1);
+ stl_be_p(p += 4, context_len);
+ memcpy(p += 4, context, context_len);
+
+ ret = nbd_send_option_request(ioc, NBD_OPT_SET_META_CONTEXT, data_len, data,
+ errp);
+ g_free(data);
+ if (ret < 0) {
+ return ret;
+ }
+
+ if (nbd_receive_option_reply(ioc, NBD_OPT_SET_META_CONTEXT, &reply,
+ errp) < 0)
+ {
+ return -1;
+ }
+
+ ret = nbd_handle_reply_err(ioc, &reply, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+
+ if (reply.type == NBD_REP_META_CONTEXT) {
+ char *name;
+ size_t len;
+
+ if (nbd_read(ioc, &received_id, sizeof(received_id), errp) < 0) {
+ return -EIO;
+ }
+ be32_to_cpus(&received_id);
+
+ len = reply.length - sizeof(received_id);
+ name = g_malloc(len + 1);
+ if (nbd_read(ioc, name, len, errp) < 0) {
+ g_free(name);
+ return -EIO;
+ }
+ name[len] = '\0';
+ if (strcmp(context, name)) {
+ error_setg(errp, "Failed to negotiate meta context '%s', server "
+ "answered with different context '%s'", context,
+ name);
+ g_free(name);
+ return -1;
+ }
+ g_free(name);
+
+ received = true;
+
+ /* receive NBD_REP_ACK */
+ if (nbd_receive_option_reply(ioc, NBD_OPT_SET_META_CONTEXT, &reply,
+ errp) < 0)
+ {
+ return -1;
+ }
+
+ ret = nbd_handle_reply_err(ioc, &reply, errp);
+ if (ret <= 0) {
+ return ret;
+ }
+ }
+
+ if (reply.type != NBD_REP_ACK) {
+ error_setg(errp, "Unexpected reply type %" PRIx32 " expected %x",
+ reply.type, NBD_REP_ACK);
+ return -1;
+ }
+
+ if (received) {
+ *context_id = received_id;
+ return 1;
+ }
+
+ return 0;
+}
int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
QCryptoTLSCreds *tlscreds, const char *hostname,
@@ -605,10 +707,12 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
int rc;
bool zeroes = true;
bool structured_reply = info->structured_reply;
+ bool base_allocation = info->base_allocation;
trace_nbd_receive_negotiate(tlscreds, hostname ? hostname : "<null>");
info->structured_reply = false;
+ info->base_allocation = false;
rc = -EINVAL;
if (outioc) {
@@ -699,6 +803,16 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
info->structured_reply = result == 1;
}
+ if (info->structured_reply && base_allocation) {
+ result = nbd_negotiate_simple_meta_context(
+ ioc, name, "base:allocation",
+ &info->meta_base_allocation_id, errp);
+ if (result < 0) {
+ goto fail;
+ }
+ info->base_allocation = result == 1;
+ }
+
/* Try NBD_OPT_GO first - if it works, we are done (it
* also gives us a good message if the server requires
* TLS). If it is not available, fall back to
diff --git a/tests/qemu-iotests/140.out b/tests/qemu-iotests/140.out
index 7295b3d975..b083e2effd 100644
--- a/tests/qemu-iotests/140.out
+++ b/tests/qemu-iotests/140.out
@@ -8,7 +8,7 @@ wrote 65536/65536 bytes at offset 0
read 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{"return": {}}
-can't open device nbd+unix:///drv?socket=TEST_DIR/nbd: Requested export not available
+can't open device nbd+unix:///drv?socket=TEST_DIR/nbd: Invalid parameters for option 10 (set meta context)
server reported: export 'drv' not present
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}
diff --git a/tests/qemu-iotests/143.out b/tests/qemu-iotests/143.out
index 1c7fb45543..ab6b29b8fb 100644
--- a/tests/qemu-iotests/143.out
+++ b/tests/qemu-iotests/143.out
@@ -1,7 +1,7 @@
QA output created by 143
{"return": {}}
{"return": {}}
-can't open device nbd+unix:///no_such_export?socket=TEST_DIR/nbd: Requested export not available
+can't open device nbd+unix:///no_such_export?socket=TEST_DIR/nbd: Invalid parameters for option 10 (set meta context)
server reported: export 'no_such_export' not present
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false}}
diff --git a/tests/qemu-iotests/205 b/tests/qemu-iotests/205
index e7b2eae51d..8a8e0df40f 100644
--- a/tests/qemu-iotests/205
+++ b/tests/qemu-iotests/205
@@ -79,7 +79,8 @@ class TestNbdServerRemove(iotests.QMPTestCase):
def assertConnectFailed(self, qemu_io_output):
self.assertEqual(filter_qemu_io(qemu_io_output).strip(),
"can't open device " + nbd_uri +
- ": Requested export not available\n"
+ ": Invalid parameters for option 10 "
+ "(set meta context)\n"
"server reported: export 'exp' not present")
def do_test_connect_after_remove(self, mode=None):
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (5 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 20:44 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 8/9] iotests: add file_path helper Vladimir Sementsov-Ogievskiy
` (6 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
tests/qemu-iotests/iotests.py | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 1bcc9ca57d..c1302a2f9b 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -23,13 +23,14 @@ import subprocess
import string
import unittest
import sys
-sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
-import qtest
import struct
import json
import signal
import logging
+sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
+import qtest
+
# This will not work if arguments contain spaces but is necessary if we
# want to support the override options that ./check supports.
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 8/9] iotests: add file_path helper
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (6 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 20:46 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS Vladimir Sementsov-Ogievskiy
` (5 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Simple way to have auto generated filenames with auto clenup. Like
FilePath but without using 'with' statement and without additional
indentation of the whole test.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
tests/qemu-iotests/iotests.py | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index c1302a2f9b..f2d05ca3fd 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -27,6 +27,7 @@ import struct
import json
import signal
import logging
+import atexit
sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
import qtest
@@ -250,6 +251,37 @@ class FilePath(object):
return False
+def file_path_remover():
+ for path in reversed(file_path_remover.paths):
+ try:
+ os.remove(path)
+ except OSError:
+ pass
+
+
+def file_path(*names):
+ ''' Another way to get auto-generated filename that cleans itself up.
+
+ Use it as simple as:
+
+ img_a, img_b = file_path('a.img', 'b.img')
+ sock = file_path('socket')
+ '''
+
+ if not hasattr(file_path_remover, 'paths'):
+ file_path_remover.paths = []
+ atexit.register(file_path_remover)
+
+ paths = []
+ for name in names:
+ filename = '{0}-{1}'.format(os.getpid(), name)
+ path = os.path.join(test_dir, filename)
+ file_path_remover.paths.append(path)
+ paths.append(path)
+
+ return paths[0] if len(paths) == 1 else paths
+
+
class VM(qtest.QEMUQtestMachine):
'''A QEMU VM'''
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (7 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 8/9] iotests: add file_path helper Vladimir Sementsov-Ogievskiy
@ 2018-02-15 13:51 ` Vladimir Sementsov-Ogievskiy
2018-02-16 21:02 ` Eric Blake
2018-02-22 19:30 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation no-reply
` (4 subsequent siblings)
13 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-15 13:51 UTC (permalink / raw)
To: qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, eblake, vsementsov, den
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
tests/qemu-iotests/206 | 34 ++++++++++++++++++++++++++++++++++
tests/qemu-iotests/206.out | 2 ++
tests/qemu-iotests/group | 1 +
3 files changed, 37 insertions(+)
create mode 100644 tests/qemu-iotests/206
create mode 100644 tests/qemu-iotests/206.out
diff --git a/tests/qemu-iotests/206 b/tests/qemu-iotests/206
new file mode 100644
index 0000000000..259e991ec6
--- /dev/null
+++ b/tests/qemu-iotests/206
@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+#
+# Tests for NBD BLOCK_STATUS extension
+#
+# Copyright (c) 2018 Virtuozzo International GmbH
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import iotests
+from iotests import qemu_img_create, qemu_io, qemu_img_verbose, qemu_nbd, \
+ file_path
+
+iotests.verify_image_format(supported_fmts=['qcow2'])
+
+disk, nbd_sock = file_path('disk', 'nbd-sock')
+nbd_uri = 'nbd+unix:///exp?socket=' + nbd_sock
+
+qemu_img_create('-f', iotests.imgfmt, disk, '1M')
+qemu_io('-f', iotests.imgfmt, '-c', 'write 0 512K', disk)
+
+qemu_nbd('-k', nbd_sock, '-x', 'exp', '-f', iotests.imgfmt, disk)
+qemu_img_verbose('map', '-f', 'raw', '--output=json', nbd_uri)
diff --git a/tests/qemu-iotests/206.out b/tests/qemu-iotests/206.out
new file mode 100644
index 0000000000..0d29724e84
--- /dev/null
+++ b/tests/qemu-iotests/206.out
@@ -0,0 +1,2 @@
+[{ "start": 0, "length": 524288, "depth": 0, "zero": false, "data": true},
+{ "start": 524288, "length": 524288, "depth": 0, "zero": true, "data": false}]
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index a2dfe79d86..2c3925566a 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -202,3 +202,4 @@
203 rw auto
204 rw auto quick
205 rw auto quick
+206 rw auto quick
--
2.11.1
^ permalink raw reply related [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper
2018-02-15 13:51 ` [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper Vladimir Sementsov-Ogievskiy
@ 2018-02-15 22:01 ` Eric Blake
2018-03-02 12:40 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-15 22:01 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> NBD_REP_ERR_INVALID is often parameter to nbd_opt_drop and it would
> be used more in following patches. So, let's add a helper.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> nbd/server.c | 50 ++++++++++++++++++++++++++++++++++++--------------
> 1 file changed, 36 insertions(+), 14 deletions(-)
More than twice the lines added compared to what was removed, so it's a
tough call whether this refactoring makes a common pattern easier or
just adds burden in tracing what gets executed, just to remove a
parameter. I'm not opposed to the patch, but want to see how it helps
the rest of the series.
At any rate, the conversion itself is done correctly, so if we keep the
patch, it has earned:
Reviewed-by: Eric Blake <eblake@redhat.com>
>
> +static int GCC_FMT_ATTR(4, 5)
> +nbd_opt_drop(NBDClient *client, uint32_t type, Error **errp,
> + const char *fmt, ...)
> +{
> + int ret;
> + va_list va;
> +
> + va_start(va, fmt);
> + ret = nbd_opt_vdrop(client, type, errp, fmt, va);
> + va_end(va);
> +
> + return ret;
> +}
> +
> +static int GCC_FMT_ATTR(3, 4)
> +nbd_opt_invalid(NBDClient *client, Error **errp, const char *fmt, ...)
No documentation comments?
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h
2018-02-15 13:51 ` [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h Vladimir Sementsov-Ogievskiy
@ 2018-02-15 22:03 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-15 22:03 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Prepared indenting for the following patch.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> include/block/nbd.h | 22 +++++++++++-----------
> 1 file changed, 11 insertions(+), 11 deletions(-)
>
> -#define NBD_OPT_INFO (6)
> -#define NBD_OPT_GO (7)
> -#define NBD_OPT_STRUCTURED_REPLY (8)
> +#define NBD_OPT_EXPORT_NAME (1)
> +#define NBD_OPT_ABORT (2)
Just one space added? Could go with a bit more, in case some later
addition is also long. But that's trivial, so either way,
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-15 13:51 ` [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part Vladimir Sementsov-Ogievskiy
@ 2018-02-15 23:02 ` Eric Blake
2018-02-16 11:09 ` Vladimir Sementsov-Ogievskiy
2018-02-16 13:21 ` Eric Blake
1 sibling, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-15 23:02 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Minimal realization: only one extent in server answer is supported.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> include/block/nbd.h | 33 ++++++
> nbd/common.c | 10 ++
> nbd/server.c | 310 +++++++++++++++++++++++++++++++++++++++++++++++++++-
> 3 files changed, 352 insertions(+), 1 deletion(-)
>
> @@ -200,9 +227,15 @@ enum {
> #define NBD_REPLY_TYPE_NONE 0
> #define NBD_REPLY_TYPE_OFFSET_DATA 1
> #define NBD_REPLY_TYPE_OFFSET_HOLE 2
> +#define NBD_REPLY_TYPE_BLOCK_STATUS 5
Stale; see nbd.git commit 56c77720 which changed this to 3.
> +++ b/nbd/server.c
> @@ -82,6 +82,15 @@ struct NBDExport {
>
> static QTAILQ_HEAD(, NBDExport) exports = QTAILQ_HEAD_INITIALIZER(exports);
>
> +/* NBDExportMetaContexts represents list of selected by
> + * NBD_OPT_SET_META_CONTEXT contexts to be exported. */
represents a list of contexts to be exported, as selected by
NBD_OPT_SET_META_CONTEXT.
> +typedef struct NBDExportMetaContexts {
> + char export_name[NBD_MAX_NAME_SIZE + 1];
Would this work as const char * pointing at some other storage, instead
of having to copy into this storage?
> + bool valid; /* means that negotiation of the option finished without
> + errors */
> + bool base_allocation; /* export base:allocation context (block status) */
> +} NBDExportMetaContexts;
> +
> struct NBDClient {
> @@ -636,6 +646,201 @@ static QIOChannel *nbd_negotiate_handle_starttls(NBDClient *client,
> return QIO_CHANNEL(tioc);
> }
>
> +/* nbd_alloc_read_size_string
> + *
> + * Read string in format
> + * uint32_t len
> + * len bytes string (not 0-terminated)
> + * String is allocated and pointer returned as @buf
> + *
> + * Return -errno on I/O error, 0 if option was completely handled by
> + * sending a reply about inconsistent lengths, or 1 on success. */
> +static int nbd_alloc_read_size_string(NBDClient *client, char **buf,
> + Error **errp)
> +{
> + int ret;
> + uint32_t len;
> +
> + ret = nbd_opt_read(client, &len, sizeof(len), errp);
> + if (ret <= 0) {
> + return ret;
> + }
> + cpu_to_be32s(&len);
> +
> + *buf = g_try_malloc(len + 1);
I'd rather check that len is sane prior to trying to malloc. Otherwise,
a malicious client can convince us to waste time/space doing a large
malloc before we finally realize that we can't read that many bytes
after all. And in fact, if you check len in advance, you can probably
just use g_malloc() instead of g_try_malloc() (g_try_malloc() makes
sense on a 1M allocation, where we can still allocate smaller stuff in
reporting the error; but since NBD limits strings to 4k, if we fail at
allocating 4k, we are probably already so hosed that our attempts to
report the failure will also run out of memory and abort, so why not
just abort now).
> + if (*buf == NULL) {
> + error_setg(errp, "No memory");
> + return -ENOMEM;
> + }
> + (*buf)[len] = '\0';
> +
> + ret = nbd_opt_read(client, *buf, len, errp);
> + if (ret <= 0) {
> + g_free(*buf);
> + *buf = NULL;
> + }
> +
> + return ret;
> +}
> +
> +/* nbd_read_size_string
Will resume review here...
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-15 23:02 ` Eric Blake
@ 2018-02-16 11:09 ` Vladimir Sementsov-Ogievskiy
2018-02-16 11:45 ` Eric Blake
0 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-16 11:09 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 02:02, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>> include/block/nbd.h | 33 ++++++
>> nbd/common.c | 10 ++
>> nbd/server.c | 310
>> +++++++++++++++++++++++++++++++++++++++++++++++++++-
>> 3 files changed, 352 insertions(+), 1 deletion(-)
>>
>
>> @@ -200,9 +227,15 @@ enum {
>> #define NBD_REPLY_TYPE_NONE 0
>> #define NBD_REPLY_TYPE_OFFSET_DATA 1
>> #define NBD_REPLY_TYPE_OFFSET_HOLE 2
>> +#define NBD_REPLY_TYPE_BLOCK_STATUS 5
>
> Stale; see nbd.git commit 56c77720 which changed this to 3.
Very unpleasant surprise. I understand that this is still experimental
extension, but actually we use it =5 in production about one year. Can
we revert it to 5?
>
>> +++ b/nbd/server.c
>> @@ -82,6 +82,15 @@ struct NBDExport {
>> static QTAILQ_HEAD(, NBDExport) exports =
>> QTAILQ_HEAD_INITIALIZER(exports);
>> +/* NBDExportMetaContexts represents list of selected by
>> + * NBD_OPT_SET_META_CONTEXT contexts to be exported. */
>
> represents a list of contexts to be exported, as selected by
> NBD_OPT_SET_META_CONTEXT.
>
>> +typedef struct NBDExportMetaContexts {
>> + char export_name[NBD_MAX_NAME_SIZE + 1];
>
> Would this work as const char * pointing at some other storage,
> instead of having to copy into this storage?
I'll think about
>
>> + bool valid; /* means that negotiation of the option finished
>> without
>> + errors */
>> + bool base_allocation; /* export base:allocation context (block
>> status) */
>> +} NBDExportMetaContexts;
>> +
>> struct NBDClient {
>
>> @@ -636,6 +646,201 @@ static QIOChannel
>> *nbd_negotiate_handle_starttls(NBDClient *client,
>> return QIO_CHANNEL(tioc);
>> }
>> +/* nbd_alloc_read_size_string
>> + *
>> + * Read string in format
>> + * uint32_t len
>> + * len bytes string (not 0-terminated)
>> + * String is allocated and pointer returned as @buf
>> + *
>> + * Return -errno on I/O error, 0 if option was completely handled by
>> + * sending a reply about inconsistent lengths, or 1 on success. */
>> +static int nbd_alloc_read_size_string(NBDClient *client, char **buf,
>> + Error **errp)
>> +{
>> + int ret;
>> + uint32_t len;
>> +
>> + ret = nbd_opt_read(client, &len, sizeof(len), errp);
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> + cpu_to_be32s(&len);
>> +
>> + *buf = g_try_malloc(len + 1);
>
> I'd rather check that len is sane prior to trying to malloc.
> Otherwise, a malicious client can convince us to waste time/space
> doing a large malloc before we finally realize that we can't read that
> many bytes after all. And in fact, if you check len in advance, you
> can probably just use g_malloc() instead of g_try_malloc()
> (g_try_malloc() makes sense on a 1M allocation, where we can still
> allocate smaller stuff in reporting the error; but since NBD limits
> strings to 4k, if we fail at allocating 4k, we are probably already so
> hosed that our attempts to report the failure will also run out of
> memory and abort, so why not just abort now).
reasonable, will do
>
>> + if (*buf == NULL) {
>> + error_setg(errp, "No memory");
>> + return -ENOMEM;
>> + }
>> + (*buf)[len] = '\0';
>> +
>> + ret = nbd_opt_read(client, *buf, len, errp);
>> + if (ret <= 0) {
>> + g_free(*buf);
>> + *buf = NULL;
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +/* nbd_read_size_string
>
> Will resume review here...
>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-16 11:09 ` Vladimir Sementsov-Ogievskiy
@ 2018-02-16 11:45 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-16 11:45 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/16/2018 05:09 AM, Vladimir Sementsov-Ogievskiy wrote:
> 16.02.2018 02:02, Eric Blake wrote:
>> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>>> Minimal realization: only one extent in server answer is supported.
>>>
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>> ---
>>> include/block/nbd.h | 33 ++++++
>>> nbd/common.c | 10 ++
>>> nbd/server.c | 310
>>> +++++++++++++++++++++++++++++++++++++++++++++++++++-
>>> 3 files changed, 352 insertions(+), 1 deletion(-)
>>>
>>
>>> @@ -200,9 +227,15 @@ enum {
>>> #define NBD_REPLY_TYPE_NONE 0
>>> #define NBD_REPLY_TYPE_OFFSET_DATA 1
>>> #define NBD_REPLY_TYPE_OFFSET_HOLE 2
>>> +#define NBD_REPLY_TYPE_BLOCK_STATUS 5
>>
>> Stale; see nbd.git commit 56c77720 which changed this to 3.
>
> Very unpleasant surprise. I understand that this is still experimental
> extension, but actually we use it =5 in production about one year. Can
> we revert it to 5?
For that, you'll have to ask on the upstream NBD list. There may be
other things that turn out to need tweaking as I get through the rest of
your initial implementation, vs. what works well for interoperability,
so having a distinct number for experimental vs. actual may be
worthwhile for other reasons as well, even if it requires some glue code
on your side to handle an older server sending 5 instead of 3 to a newer
client.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-15 13:51 ` [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part Vladimir Sementsov-Ogievskiy
2018-02-15 23:02 ` Eric Blake
@ 2018-02-16 13:21 ` Eric Blake
2018-02-16 14:43 ` Vladimir Sementsov-Ogievskiy
2018-03-02 15:07 ` Vladimir Sementsov-Ogievskiy
1 sibling, 2 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-16 13:21 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Minimal realization: only one extent in server answer is supported.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
continuing where I left off,
> +++ b/nbd/common.c
> @@ -75,6 +75,10 @@ const char *nbd_opt_lookup(uint32_t opt)
> return "go";
> case NBD_OPT_STRUCTURED_REPLY:
> return "structured reply";
> + case NBD_OPT_LIST_META_CONTEXT:
> + return "list meta context";
> + case NBD_OPT_SET_META_CONTEXT:
> + return "set meta context";
> default:
Should the changes to the header for new macros and to common.c for
mapping bits to names be split into a separate patch, so that someone
could backport just the new constants and then the client-side
implementation, rather than being forced to backport the rest of the
server implementation at the same time?
> +
> +/* nbd_read_size_string
> + *
> + * Read string in format
> + * uint32_t len
> + * len bytes string (not 0-terminated)
> + *
> + * @buf should be enough to store @max_len+1
> + *
> + * Return -errno on I/O error, 0 if option was completely handled by
> + * sending a reply about inconsistent lengths, or 1 on success. */
> +static int nbd_read_size_string(NBDClient *client, char *buf,
> + uint32_t max_len, Error **errp)
Would existing code benefit from using this helper? If so, splitting it
into a separate patch, plus converting initial clients to use it, would
be worthwhile.
> +
> +static int nbd_negotiate_send_meta_context(NBDClient *client,
> + const char *context,
> + uint32_t context_id,
> + Error **errp)
No comment documenting this function?
> +{
> + NBDOptionReplyMetaContext opt;
> + struct iovec iov[] = {
> + {.iov_base = &opt, .iov_len = sizeof(opt)},
> + {.iov_base = (void *)context, .iov_len = strlen(context)}
Casting to void* looks suspicious, but I see that it is casting away
const. Okay.
> + };
> +
> + set_be_option_rep(&opt.h, client->opt, NBD_REP_META_CONTEXT,
> + sizeof(opt) - sizeof(opt.h) + iov[1].iov_len);
> + stl_be_p(&opt.context_id, context_id);
> +
> + return qio_channel_writev_all(client->ioc, iov, 2, errp) < 0 ? -EIO : 0;
> +}
> +
> +static void nbd_meta_base_query(NBDExportMetaContexts *meta, const char *query)
> +{
Again, function comments are useful.
> + if (query[0] == '\0' || strcmp(query, "allocation") == 0) {
> + /* Note: empty query should select all contexts within base
> + * namespace. */
> + meta->base_allocation = true;
From the client perspective, this handling of the empty leaf-name works
well for NBD_OPT_LIST_META_CONTEXT (I want to see what leaf nodes the
server supports), but not so well for NBD_OPT_SET_META_CONTEXT (asking
the server to send ALL base allocations, even when I don't necessarily
know how to interpret anything other than base:allocation, is a waste).
So this function needs a bool parameter that says whether it is being
invoked from _LIST (empty string okay, to advertise ALL base leaf names
back to client, which for now is just base:allocation) or from _SET
(empty string is ignored as invalid; client has to specifically ask for
base:allocation by name).
> + }
> +}
> +
> +/* nbd_negotiate_meta_query
> + * Return -errno on I/O error, 0 if option was completely handled by
> + * sending a reply about inconsistent lengths, or 1 on success. */
> +static int nbd_negotiate_meta_query(NBDClient *client,
> + NBDExportMetaContexts *meta, Error **errp)
> +{
> + int ret;
> + char *query, *colon, *namespace, *subquery;
Is it worth stack-allocating query here, so you don't have to g_free()
it later? NBD limits the maximum string to 4k, which is a little bit
big for stack allocation (on an operating system with 4k pages,
allocating more than 4k on the stack in one function risks missing the
guard page on stack overflow), but we also have the benefit that we KNOW
that the set of meta-context namespaces that we support have a much
smaller maximum limit of what we even care about.
> +
> + ret = nbd_alloc_read_size_string(client, &query, errp);
> + if (ret <= 0) {
> + return ret;
> + }
> +
> + colon = strchr(query, ':');
> + if (colon == NULL) {
> + ret = nbd_opt_invalid(client, errp, "no colon in query");
> + goto out;
Hmm, that puts a slight wrinkle into my proposal, or else maybe it is
something I should bring up on the NBD list. If we only read 5
characters (because the max namespace WE support is "base:"), but a
client asks for namespace "X-longname:", we should gracefully ignore the
client's request; while we still want to reply with an error to a client
that asks for "garbage" with no colon at all. The question for the NBD
spec, then, is whether detecting bad client requests that didn't use
colon is mandatory for the server (meaning we MUST read the entire
namespace request, and search for the colon) or merely best effort (we
only have to read 5 characters, and if we silently ignore instead of
diagnose a bad namespace request that was longer than that, oh well).
Worded from the client, it switches to a question of whether the client
should expect the server to diagnose all requests, or must be prepared
for the server to ignore requests even where those requests are bogus.
Or, the NBD spec may change slightly to pass namespace and leafname as
separate fields, both with lengths, rather than a colon, to make it
easier for the server to skip over an unknown namespace/leaf pair
without having to parse whether a colon was present. I'll send that in
a separate email (the upstream NBD list doesn't need to see all my
review comments on this thread).
> + }
> + *colon = '\0';
> + namespace = query;
> + subquery = colon + 1;
> +
> + if (strcmp(namespace, "base") == 0) {
> + nbd_meta_base_query(meta, subquery);
> + }
> +
> +out:
> + g_free(query);
> + return ret;
> +}
> +
> +/* nbd_negotiate_meta_queries
> + * Handle NBD_OPT_LIST_META_CONTEXT and NBD_OPT_SET_META_CONTEXT
> + *
> + * Return -errno on I/O error, 0 if option was completely handled by
> + * sending a reply about inconsistent lengths, or 1 on success. */
> +static int nbd_negotiate_meta_queries(NBDClient *client,
> + NBDExportMetaContexts *meta, Error **errp)
> +{
The two options can mostly share code, but see my earlier comments about
how I think you need to distinguish between list ('base:' is a valid
query) and set ('base:' is an invalid request).
> + int ret;
> + NBDExport *exp;
> + NBDExportMetaContexts local_meta;
> + uint32_t nb_queries;
> + int i;
> +
> + assert(client->structured_reply);
Hmm. Asserting here is bad if the client can get here without
negotiating structured reply (I'll have to see if you checked that in
the caller... [1])
> +
> + if (meta == NULL) {
Bikeshedding - I like writing 'if (!meta) {' as it is fewer characters.
The function documentation should mention that 'meta' may be NULL from
the caller. But (without seeing the callers yet), why? Are you arguing
that _LIST uses local_meta (because it only needs something for the
duration of the reply) while _SET supplies a pre-existing meta (that is
associated with the server state, and used when the client finally calls
NBD_OPT_GO)?
> + meta = &local_meta;
> + }
> +
> + memset(meta, 0, sizeof(*meta));
> +
> + ret = nbd_read_size_string(client, meta->export_name,
> + NBD_MAX_NAME_SIZE, errp);
Revisiting a question I raised in my first half review - you saved the
name as part of the struct because we have to later compare that the
final OPT_SET export name matches the request during OPT_GO (if they
don't match, then we have no contexts to serve after all). So a 'const
char *' won't work, but maybe the struct could use a 'char *' pointing
to malloc'd storage rather than char[MAX_NAME] that reserves array space
that is mostly unused for the typical name that is much shorter than the
maximum name length.
> + if (ret <= 0) {
> + return ret;
> + }
> +
> + exp = nbd_export_find(meta->export_name);
> + if (exp == NULL) {
> + return nbd_opt_invalid(client, errp,
> + "export '%s' not present", meta->export_name);
Wrong error; I think NBD_REP_ERR_UNKNOWN is better here.
> + }
> +
> + ret = nbd_opt_read(client, &nb_queries, sizeof(nb_queries), errp);
> + if (ret <= 0) {
> + return ret;
> + }
> + cpu_to_be32s(&nb_queries);
> +
> + for (i = 0; i < nb_queries; ++i) {
> + ret = nbd_negotiate_meta_query(client, meta, errp);
> + if (ret <= 0) {
> + return ret;
> + }
> + }
Interesting choice - you parse all queries prior to preparing any
response. I guess you could also reply as you read, but it doesn't
change the fact that you have to remember what the final _SET selected
for use later on. So this works.
> +
> + if (meta->base_allocation) {
> + ret = nbd_negotiate_send_meta_context(client, "base:allocation",
> + NBD_META_ID_BASE_ALLOCATION,
> + errp);
Since earlier you have #define NBD_META_ID_BASE_ALLOCATION 0, that means
you use the context ID of 0 in response to both _LIST (where the spec
says the server SHOULD send 0, but the client SHOULD ignore the id
field) and for _SET (where the client needs a unique ID for every
separate context that actually got selected - but since we only select a
single context, we get away with it). I suspect later patches will add
additional contexts where you'll have to actually worry about context
ids (and always sending 0 in response to _LIST), but for now, this works :)
> + if (ret < 0) {
> + return ret;
> + }
> + }
> +
> + ret = nbd_negotiate_send_rep(client, NBD_REP_ACK, errp);
> + if (ret == 0) {
> + meta->valid = true;
> + }
Interesting - meta->valid can be true even if 0 contexts were selected;
I presume we use this later on to decide whether to reply with EINVAL
vs. an empty list if a client uses NBD_CMD_BLOCK_STATUS without a valid
_SET call. Then again, the NBD spec currently states that
NBD_CMD_BLOCK_STATUS should not be used even if _SET succeeded, if the
_SET didn't return at least one context.
> +
> + return ret;
> +}
> +
> /* nbd_negotiate_options
> * Process all NBD_OPT_* client option commands, during fixed newstyle
> * negotiation.
> @@ -826,6 +1031,22 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
> }
> break;
>
> + case NBD_OPT_LIST_META_CONTEXT:
> + case NBD_OPT_SET_META_CONTEXT:
> + if (!client->structured_reply) {
> + ret = nbd_opt_invalid(
> + client, errp,
> + "request option '%s' when structured reply "
> + "is not negotiated", nbd_opt_lookup(option));
[1] okay, you did filter out clients that request out of order.
> + } else if (option == NBD_OPT_LIST_META_CONTEXT) {
> + ret = nbd_negotiate_meta_queries(client, NULL, errp);
> + } else {
> + ret = nbd_negotiate_meta_queries(client,
> + &client->export_meta,
> + errp);
Okay, so you DO have a difference on whether you pass in 'meta' based on
whether it is a local response vs. setting things for later.
> + }
> + break;
> +
> default:
> ret = nbd_opt_drop(client, NBD_REP_ERR_UNSUP, errp,
> "Unsupported option 0x%" PRIx32 " (%s)",
> @@ -1446,6 +1667,78 @@ static int coroutine_fn nbd_co_send_structured_error(NBDClient *client,
> return nbd_co_send_iov(client, iov, 1 + !!iov[1].iov_len, errp);
> }
>
> +static int blockstatus_to_extent_be(BlockDriverState *bs, uint64_t offset,
> + uint64_t bytes, NBDExtent *extent)
> +{
> + uint64_t tail_bytes = bytes;
> +
> + while (tail_bytes) {
I might have named this 'remaining'
> + uint32_t flags;
> + int64_t num;
> + int ret = bdrv_block_status_above(bs, NULL, offset, tail_bytes, &num,
> + NULL, NULL);
> + if (ret < 0) {
> + return ret;
> + }
> +
> + flags = (ret & BDRV_BLOCK_ALLOCATED ? 0 : NBD_STATE_HOLE) |
> + (ret & BDRV_BLOCK_ZERO ? NBD_STATE_ZERO : 0);
Looks like the correct bit mapping to me.
> +
> + if (tail_bytes == bytes) {
> + extent->flags = flags;
> + }
> +
> + if (flags != extent->flags) {
> + break;
> + }
> +
> + offset += num;
> + tail_bytes -= num;
> + }
> +
> + cpu_to_be32s(&extent->flags);
> + extent->length = cpu_to_be32(bytes - tail_bytes);
This only computes one extent, but tries to find the longest extent
possible (if two consecutive bdrv_block_status calls return the same
status, perhaps because of fragmentation). Presumably this is called in
a loop to find a full list of extents covering the client's entire
request? [2]
> +
> + return 0;
> +}
> +
> +/* nbd_co_send_extents
> + * @extents should be in big-endian */
> +static int nbd_co_send_extents(NBDClient *client, uint64_t handle,
> + NBDExtent *extents, unsigned nb_extents,
> + uint32_t context_id, Error **errp)
> +{
> + NBDStructuredMeta chunk;
> +
> + struct iovec iov[] = {
> + {.iov_base = &chunk, .iov_len = sizeof(chunk)},
> + {.iov_base = extents, .iov_len = nb_extents * sizeof(extents[0])}
> + };
> +
> + set_be_chunk(&chunk.h, NBD_REPLY_FLAG_DONE, NBD_REPLY_TYPE_BLOCK_STATUS,
> + handle, sizeof(chunk) - sizeof(chunk.h) + iov[1].iov_len);
This says you can only send a single chunk, which matches the fact that
right now you support exactly one context type. Presumably later
patches tweak this.
> + stl_be_p(&chunk.context_id, context_id);
> +
> + return nbd_co_send_iov(client, iov, 2, errp);
> +}
> +
> +static int nbd_co_send_block_status(NBDClient *client, uint64_t handle,
> + BlockDriverState *bs, uint64_t offset,
> + uint64_t length, uint32_t context_id,
> + Error **errp)
No function comment?
> +{
> + int ret;
> + NBDExtent extent;
> +
> + ret = blockstatus_to_extent_be(bs, offset, length, &extent);
> + if (ret < 0) {
> + return nbd_co_send_structured_error(
> + client, handle, -ret, "can't get block status", errp);
> + }
> +
> + return nbd_co_send_extents(client, handle, &extent, 1, context_id, errp);
[2] Okay, no looping to answer the client's entire request, so that may
be something you add in a later patch, to keep this initial patch
minimal. But at least it matches your commit message.
> +}
> +
> /* nbd_co_receive_request
> * Collect a client request. Return 0 if request looks valid, -EIO to drop
> * connection right away, and any other negative value to report an error to
> @@ -1523,6 +1816,8 @@ static int nbd_co_receive_request(NBDRequestData *req, NBDRequest *request,
> valid_flags |= NBD_CMD_FLAG_DF;
> } else if (request->type == NBD_CMD_WRITE_ZEROES) {
> valid_flags |= NBD_CMD_FLAG_NO_HOLE;
> + } else if (request->type == NBD_CMD_BLOCK_STATUS) {
> + valid_flags |= NBD_CMD_FLAG_REQ_ONE;
> }
> if (request->flags & ~valid_flags) {
> error_setg(errp, "unsupported flags for command %s (got 0x%x)",
> @@ -1650,6 +1945,19 @@ static coroutine_fn void nbd_trip(void *opaque)
> }
>
> break;
> + case NBD_CMD_BLOCK_STATUS:
> + if (client->export_meta.base_allocation) {
> + ret = nbd_co_send_block_status(req->client, request.handle,
> + blk_bs(exp->blk), request.from,
> + request.len,
> + NBD_META_ID_BASE_ALLOCATION,
> + &local_err);
No check of client->export_meta.valid?
> + } else {
> + ret = -EINVAL;
> + error_setg(&local_err, "CMD_BLOCK_STATUS not negotiated");
> + }
At this point, we've either sent the final structured chunk, or we've
sent nothing and have ret < 0;...
> +
> + break;
> default:
> error_setg(&local_err, "invalid request type (%" PRIu32 ") received",
> request.type);
> @@ -1680,7 +1988,7 @@ reply:
if (client->structured_reply &&
(ret < 0 || request.type == NBD_CMD_READ)) {
> ret = nbd_co_send_structured_done(req->client, request.handle,
> &local_err);
> }
...iIf the client negotiated structured reply, then we've sent the error
message. But if the client did NOT negotiate structured reply, then...
> - } else {
> + } else if (request.type != NBD_CMD_BLOCK_STATUS) {
...we fail to reply at all. Oops. That's not good for
interoperability. You'll need to make sure that we reply with EINVAL
even if the client (mistakenly) calls NBD_CMD_BLOCK_STATUS without
negotiating structured replies.
> ret = nbd_co_send_simple_reply(req->client, request.handle,
> ret < 0 ? -ret : 0,
> req->data, reply_data_len, &local_err);
>
Also missing from the patch - where do you validate that the export name
in client->export_meta matches the export name in NBD_OPT_GO? If they
don't match, then export_meta should be discarded.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-16 13:21 ` Eric Blake
@ 2018-02-16 14:43 ` Vladimir Sementsov-Ogievskiy
2018-02-16 17:01 ` Eric Blake
2018-03-02 15:07 ` Vladimir Sementsov-Ogievskiy
1 sibling, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-02-16 14:43 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 16:21, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
> continuing where I left off,
>
>
>> +++ b/nbd/common.c
>> @@ -75,6 +75,10 @@ const char *nbd_opt_lookup(uint32_t opt)
>> return "go";
>> case NBD_OPT_STRUCTURED_REPLY:
>> return "structured reply";
>> + case NBD_OPT_LIST_META_CONTEXT:
>> + return "list meta context";
>> + case NBD_OPT_SET_META_CONTEXT:
>> + return "set meta context";
>> default:
>
> Should the changes to the header for new macros and to common.c for
> mapping bits to names be split into a separate patch, so that someone
> could backport just the new constants and then the client-side
> implementation, rather than being forced to backport the rest of the
> server implementation at the same time?
Not a problem, I can split. I've thought about it, but decided for first
roll send it as one patch.
>
>> +
>> +/* nbd_read_size_string
>> + *
>> + * Read string in format
>> + * uint32_t len
>> + * len bytes string (not 0-terminated)
>> + *
>> + * @buf should be enough to store @max_len+1
>> + *
>> + * Return -errno on I/O error, 0 if option was completely handled by
>> + * sending a reply about inconsistent lengths, or 1 on success. */
>> +static int nbd_read_size_string(NBDClient *client, char *buf,
>> + uint32_t max_len, Error **errp)
>
> Would existing code benefit from using this helper? If so, splitting
> it into a separate patch, plus converting initial clients to use it,
> would be worthwhile.
>
>
>> +
>> +static int nbd_negotiate_send_meta_context(NBDClient *client,
>> + const char *context,
>> + uint32_t context_id,
>> + Error **errp)
>
> No comment documenting this function?
>
>> +{
>> + NBDOptionReplyMetaContext opt;
>> + struct iovec iov[] = {
>> + {.iov_base = &opt, .iov_len = sizeof(opt)},
>> + {.iov_base = (void *)context, .iov_len = strlen(context)}
>
> Casting to void* looks suspicious, but I see that it is casting away
> const. Okay.
>
>> + };
>> +
>> + set_be_option_rep(&opt.h, client->opt, NBD_REP_META_CONTEXT,
>> + sizeof(opt) - sizeof(opt.h) + iov[1].iov_len);
>> + stl_be_p(&opt.context_id, context_id);
>> +
>> + return qio_channel_writev_all(client->ioc, iov, 2, errp) < 0 ?
>> -EIO : 0;
>> +}
>> +
>> +static void nbd_meta_base_query(NBDExportMetaContexts *meta, const
>> char *query)
>> +{
>
> Again, function comments are useful.
>
>> + if (query[0] == '\0' || strcmp(query, "allocation") == 0) {
>> + /* Note: empty query should select all contexts within base
>> + * namespace. */
>> + meta->base_allocation = true;
>
> From the client perspective, this handling of the empty leaf-name
> works well for NBD_OPT_LIST_META_CONTEXT (I want to see what leaf
> nodes the server supports), but not so well for
> NBD_OPT_SET_META_CONTEXT (asking the server to send ALL base
> allocations, even when I don't necessarily know how to interpret
> anything other than base:allocation, is a waste). So this function
> needs a bool parameter that says whether it is being invoked from
> _LIST (empty string okay, to advertise ALL base leaf names back to
> client, which for now is just base:allocation) or from _SET (empty
> string is ignored as invalid; client has to specifically ask for
> base:allocation by name).
"empty string is ignored as invalid", hm, do we have this in spec? I
think SET and LIST must select exactly same sets of contexts. It is
strange behavior of client to set "base:", but it is its decision. And I
don't thing that it is invalid.
Formally we may answer with NBD_REP_ERR_TOO_BIG, but it will look weird,
as client see that both base: and base:allocation returns _one_
context, but in one case it is too big. But if we will have several
base: contextes, server may fairly answer with NBD_REP_ERR_TOO_BIG.
So, I think for now the code is ok.
Also, I don't see NBD_REP_ERR_TOO_BIG possible reply in
NBD_OPT_LIST_META_CONTEXT description. Should it be here?
>
>> + }
>> +}
>> +
>> +/* nbd_negotiate_meta_query
>> + * Return -errno on I/O error, 0 if option was completely handled by
>> + * sending a reply about inconsistent lengths, or 1 on success. */
>> +static int nbd_negotiate_meta_query(NBDClient *client,
>> + NBDExportMetaContexts *meta,
>> Error **errp)
>> +{
>> + int ret;
>> + char *query, *colon, *namespace, *subquery;
>
> Is it worth stack-allocating query here, so you don't have to g_free()
> it later? NBD limits the maximum string to 4k, which is a little bit
> big for stack allocation (on an operating system with 4k pages,
> allocating more than 4k on the stack in one function risks missing the
> guard page on stack overflow), but we also have the benefit that we
> KNOW that the set of meta-context namespaces that we support have a
> much smaller maximum limit of what we even care about.
it is not stack allocated, nbd_alloc_read_size_string calls g_malloc.
>
>> +
>> + ret = nbd_alloc_read_size_string(client, &query, errp);
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> +
>> + colon = strchr(query, ':');
>> + if (colon == NULL) {
>> + ret = nbd_opt_invalid(client, errp, "no colon in query");
>> + goto out;
>
> Hmm, that puts a slight wrinkle into my proposal, or else maybe it is
> something I should bring up on the NBD list. If we only read 5
> characters (because the max namespace WE support is "base:"), but a
> client asks for namespace "X-longname:", we should gracefully ignore
> the client's request; while we still want to reply with an error to a
> client that asks for "garbage" with no colon at all. The question for
> the NBD spec, then, is whether detecting bad client requests that
> didn't use colon is mandatory for the server (meaning we MUST read the
> entire namespace request, and search for the colon) or merely best
> effort (we only have to read 5 characters, and if we silently ignore
> instead of diagnose a bad namespace request that was longer than that,
> oh well). Worded from the client, it switches to a question of whether
> the client should expect the server to diagnose all requests, or must
> be prepared for the server to ignore requests even where those
> requests are bogus. Or, the NBD spec may change slightly to pass
> namespace and leafname as separate fields, both with lengths, rather
> than a colon, to make it easier for the server to skip over an unknown
> namespace/leaf pair without having to parse whether a colon was
> present. I'll send that in a separate email (the upstream NBD list
> doesn't need to see all my review comments on this thread).
>
>> + }
>> + *colon = '\0';
>> + namespace = query;
>> + subquery = colon + 1;
>> +
>> + if (strcmp(namespace, "base") == 0) {
>> + nbd_meta_base_query(meta, subquery);
>> + }
>> +
>> +out:
>> + g_free(query);
>> + return ret;
>> +}
>> +
>> +/* nbd_negotiate_meta_queries
>> + * Handle NBD_OPT_LIST_META_CONTEXT and NBD_OPT_SET_META_CONTEXT
>> + *
>> + * Return -errno on I/O error, 0 if option was completely handled by
>> + * sending a reply about inconsistent lengths, or 1 on success. */
>> +static int nbd_negotiate_meta_queries(NBDClient *client,
>> + NBDExportMetaContexts *meta,
>> Error **errp)
>> +{
>
> The two options can mostly share code, but see my earlier comments
> about how I think you need to distinguish between list ('base:' is a
> valid query) and set ('base:' is an invalid request).
>
>> + int ret;
>> + NBDExport *exp;
>> + NBDExportMetaContexts local_meta;
>> + uint32_t nb_queries;
>> + int i;
>> +
>> + assert(client->structured_reply);
>
> Hmm. Asserting here is bad if the client can get here without
> negotiating structured reply (I'll have to see if you checked that in
> the caller... [1])
>
>> +
>> + if (meta == NULL) {
>
> Bikeshedding - I like writing 'if (!meta) {' as it is fewer characters.
>
> The function documentation should mention that 'meta' may be NULL from
> the caller. But (without seeing the callers yet), why? Are you
> arguing that _LIST uses local_meta (because it only needs something
> for the duration of the reply) while _SET supplies a pre-existing meta
> (that is associated with the server state, and used when the client
> finally calls NBD_OPT_GO)?
yes.
>
>> + meta = &local_meta;
>> + }
>> +
>> + memset(meta, 0, sizeof(*meta));
>> +
>> + ret = nbd_read_size_string(client, meta->export_name,
>> + NBD_MAX_NAME_SIZE, errp);
>
> Revisiting a question I raised in my first half review - you saved the
> name as part of the struct because we have to later compare that the
> final OPT_SET export name matches the request during OPT_GO (if they
> don't match, then we have no contexts to serve after all). So a
> 'const char *' won't work, but maybe the struct could use a 'char *'
> pointing to malloc'd storage rather than char[MAX_NAME] that reserves
> array space that is mostly unused for the typical name that is much
> shorter than the maximum name length.
>
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> +
>> + exp = nbd_export_find(meta->export_name);
>> + if (exp == NULL) {
>> + return nbd_opt_invalid(client, errp,
>> + "export '%s' not present",
>> meta->export_name);
>
> Wrong error; I think NBD_REP_ERR_UNKNOWN is better here.
>
>> + }
>> +
>> + ret = nbd_opt_read(client, &nb_queries, sizeof(nb_queries), errp);
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> + cpu_to_be32s(&nb_queries);
>> +
>> + for (i = 0; i < nb_queries; ++i) {
>> + ret = nbd_negotiate_meta_query(client, meta, errp);
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> + }
>
> Interesting choice - you parse all queries prior to preparing any
> response. I guess you could also reply as you read, but it doesn't
> change the fact that you have to remember what the final _SET selected
> for use later on. So this works.
>
>> +
>> + if (meta->base_allocation) {
>> + ret = nbd_negotiate_send_meta_context(client,
>> "base:allocation",
>> + NBD_META_ID_BASE_ALLOCATION,
>> + errp);
>
> Since earlier you have #define NBD_META_ID_BASE_ALLOCATION 0, that
> means you use the context ID of 0 in response to both _LIST (where the
> spec says the server SHOULD send 0, but the client SHOULD ignore the
> id field) and for _SET (where the client needs a unique ID for every
> separate context that actually got selected - but since we only select
> a single context, we get away with it). I suspect later patches will
> add additional contexts where you'll have to actually worry about
> context ids (and always sending 0 in response to _LIST), but for now,
> this works :)
>
>> + if (ret < 0) {
>> + return ret;
>> + }
>> + }
>> +
>> + ret = nbd_negotiate_send_rep(client, NBD_REP_ACK, errp);
>> + if (ret == 0) {
>> + meta->valid = true;
>> + }
>
> Interesting - meta->valid can be true even if 0 contexts were
> selected; I presume we use this later on to decide whether to reply
> with EINVAL vs. an empty list if a client uses NBD_CMD_BLOCK_STATUS
> without a valid _SET call. Then again, the NBD spec currently states
> that NBD_CMD_BLOCK_STATUS should not be used even if _SET succeeded,
> if the _SET didn't return at least one context.
>
>> +
>> + return ret;
>> +}
>> +
>> /* nbd_negotiate_options
>> * Process all NBD_OPT_* client option commands, during fixed newstyle
>> * negotiation.
>> @@ -826,6 +1031,22 @@ static int nbd_negotiate_options(NBDClient
>> *client, uint16_t myflags,
>> }
>> break;
>> + case NBD_OPT_LIST_META_CONTEXT:
>> + case NBD_OPT_SET_META_CONTEXT:
>> + if (!client->structured_reply) {
>> + ret = nbd_opt_invalid(
>> + client, errp,
>> + "request option '%s' when structured
>> reply "
>> + "is not negotiated",
>> nbd_opt_lookup(option));
>
> [1] okay, you did filter out clients that request out of order.
>
>> + } else if (option == NBD_OPT_LIST_META_CONTEXT) {
>> + ret = nbd_negotiate_meta_queries(client, NULL,
>> errp);
>> + } else {
>> + ret = nbd_negotiate_meta_queries(client,
>> + &client->export_meta,
>> + errp);
>
> Okay, so you DO have a difference on whether you pass in 'meta' based
> on whether it is a local response vs. setting things for later.
>
>> + }
>> + break;
>> +
>> default:
>> ret = nbd_opt_drop(client, NBD_REP_ERR_UNSUP, errp,
>> "Unsupported option 0x%" PRIx32
>> " (%s)",
>> @@ -1446,6 +1667,78 @@ static int coroutine_fn
>> nbd_co_send_structured_error(NBDClient *client,
>> return nbd_co_send_iov(client, iov, 1 + !!iov[1].iov_len, errp);
>> }
>> +static int blockstatus_to_extent_be(BlockDriverState *bs, uint64_t
>> offset,
>> + uint64_t bytes, NBDExtent *extent)
>> +{
>> + uint64_t tail_bytes = bytes;
>> +
>> + while (tail_bytes) {
>
> I might have named this 'remaining'
>
>> + uint32_t flags;
>> + int64_t num;
>> + int ret = bdrv_block_status_above(bs, NULL, offset,
>> tail_bytes, &num,
>> + NULL, NULL);
>> + if (ret < 0) {
>> + return ret;
>> + }
>> +
>> + flags = (ret & BDRV_BLOCK_ALLOCATED ? 0 : NBD_STATE_HOLE) |
>> + (ret & BDRV_BLOCK_ZERO ? NBD_STATE_ZERO : 0);
>
> Looks like the correct bit mapping to me.
>
>> +
>> + if (tail_bytes == bytes) {
>> + extent->flags = flags;
>> + }
>> +
>> + if (flags != extent->flags) {
>> + break;
>> + }
>> +
>> + offset += num;
>> + tail_bytes -= num;
>> + }
>> +
>> + cpu_to_be32s(&extent->flags);
>> + extent->length = cpu_to_be32(bytes - tail_bytes);
>
> This only computes one extent, but tries to find the longest extent
> possible (if two consecutive bdrv_block_status calls return the same
> status, perhaps because of fragmentation). Presumably this is called
> in a loop to find a full list of extents covering the client's entire
> request? [2]
yes. And tiny overhead is one extra found extent of other type, so this
function can't be efficiently reused to implement several extents.
However, I don't see real usage for this now, as we don't have multi
extent blockstatus support in block layer.. And code for dirty bitmap
would be separate anyway.
>
>> +
>> + return 0;
>> +}
>> +
>> +/* nbd_co_send_extents
>> + * @extents should be in big-endian */
>> +static int nbd_co_send_extents(NBDClient *client, uint64_t handle,
>> + NBDExtent *extents, unsigned nb_extents,
>> + uint32_t context_id, Error **errp)
>> +{
>> + NBDStructuredMeta chunk;
>> +
>> + struct iovec iov[] = {
>> + {.iov_base = &chunk, .iov_len = sizeof(chunk)},
>> + {.iov_base = extents, .iov_len = nb_extents *
>> sizeof(extents[0])}
>> + };
>> +
>> + set_be_chunk(&chunk.h, NBD_REPLY_FLAG_DONE,
>> NBD_REPLY_TYPE_BLOCK_STATUS,
>> + handle, sizeof(chunk) - sizeof(chunk.h) +
>> iov[1].iov_len);
>
> This says you can only send a single chunk, which matches the fact
> that right now you support exactly one context type. Presumably later
> patches tweak this.
>
>> + stl_be_p(&chunk.context_id, context_id);
>> +
>> + return nbd_co_send_iov(client, iov, 2, errp);
>> +}
>> +
>> +static int nbd_co_send_block_status(NBDClient *client, uint64_t handle,
>> + BlockDriverState *bs, uint64_t
>> offset,
>> + uint64_t length, uint32_t
>> context_id,
>> + Error **errp)
>
> No function comment?
>
>> +{
>> + int ret;
>> + NBDExtent extent;
>> +
>> + ret = blockstatus_to_extent_be(bs, offset, length, &extent);
>> + if (ret < 0) {
>> + return nbd_co_send_structured_error(
>> + client, handle, -ret, "can't get block status", errp);
>> + }
>> +
>> + return nbd_co_send_extents(client, handle, &extent, 1,
>> context_id, errp);
>
> [2] Okay, no looping to answer the client's entire request, so that
> may be something you add in a later patch, to keep this initial patch
> minimal. But at least it matches your commit message.
>
>> +}
>> +
>> /* nbd_co_receive_request
>> * Collect a client request. Return 0 if request looks valid, -EIO
>> to drop
>> * connection right away, and any other negative value to report an
>> error to
>> @@ -1523,6 +1816,8 @@ static int
>> nbd_co_receive_request(NBDRequestData *req, NBDRequest *request,
>> valid_flags |= NBD_CMD_FLAG_DF;
>> } else if (request->type == NBD_CMD_WRITE_ZEROES) {
>> valid_flags |= NBD_CMD_FLAG_NO_HOLE;
>> + } else if (request->type == NBD_CMD_BLOCK_STATUS) {
>> + valid_flags |= NBD_CMD_FLAG_REQ_ONE;
>> }
>> if (request->flags & ~valid_flags) {
>> error_setg(errp, "unsupported flags for command %s (got
>> 0x%x)",
>> @@ -1650,6 +1945,19 @@ static coroutine_fn void nbd_trip(void *opaque)
>> }
>> break;
>> + case NBD_CMD_BLOCK_STATUS:
>> + if (client->export_meta.base_allocation) {
>> + ret = nbd_co_send_block_status(req->client, request.handle,
>> + blk_bs(exp->blk),
>> request.from,
>> + request.len,
>> + NBD_META_ID_BASE_ALLOCATION,
>> + &local_err);
>
> No check of client->export_meta.valid?
hmm, strange, looks like I don't use .valid at all. worth add.
>
>> + } else {
>> + ret = -EINVAL;
>> + error_setg(&local_err, "CMD_BLOCK_STATUS not negotiated");
>> + }
>
> At this point, we've either sent the final structured chunk, or we've
> sent nothing and have ret < 0;...
>
>> +
>> + break;
>> default:
>> error_setg(&local_err, "invalid request type (%" PRIu32 ")
>> received",
>> request.type);
>> @@ -1680,7 +1988,7 @@ reply:
>
> if (client->structured_reply &&
> (ret < 0 || request.type == NBD_CMD_READ)) {
>
>> ret = nbd_co_send_structured_done(req->client,
>> request.handle,
>> &local_err);
>> }
>
> ...iIf the client negotiated structured reply, then we've sent the
> error message. But if the client did NOT negotiate structured reply,
> then...
>
>> - } else {
>> + } else if (request.type != NBD_CMD_BLOCK_STATUS) {
>
> ...we fail to reply at all. Oops. That's not good for
> interoperability. You'll need to make sure that we reply with EINVAL
> even if the client (mistakenly) calls NBD_CMD_BLOCK_STATUS without
> negotiating structured replies.
good caught! I felt that I'm doing something ugly, when I was writing
this if. I'll think about how to refactor this a bit.
>
>> ret = nbd_co_send_simple_reply(req->client, request.handle,
>> ret < 0 ? -ret : 0,
>> req->data, reply_data_len,
>> &local_err);
>>
>
> Also missing from the patch - where do you validate that the export
> name in client->export_meta matches the export name in NBD_OPT_GO? If
> they don't match, then export_meta should be discarded.
>
hm, me too.
Thank you for careful review!
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-16 14:43 ` Vladimir Sementsov-Ogievskiy
@ 2018-02-16 17:01 ` Eric Blake
2018-03-01 11:36 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-16 17:01 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/16/2018 08:43 AM, Vladimir Sementsov-Ogievskiy wrote:
> 16.02.2018 16:21, Eric Blake wrote:
>> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>>> Minimal realization: only one extent in server answer is supported.
>>>
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>> ---
>> Again, function comments are useful.
>>
>>> + if (query[0] == '\0' || strcmp(query, "allocation") == 0) {
>>> + /* Note: empty query should select all contexts within base
>>> + * namespace. */
>>> + meta->base_allocation = true;
>>
>> From the client perspective, this handling of the empty leaf-name
>> works well for NBD_OPT_LIST_META_CONTEXT (I want to see what leaf
>> nodes the server supports), but not so well for
>> NBD_OPT_SET_META_CONTEXT (asking the server to send ALL base
>> allocations, even when I don't necessarily know how to interpret
>> anything other than base:allocation, is a waste). So this function
>> needs a bool parameter that says whether it is being invoked from
>> _LIST (empty string okay, to advertise ALL base leaf names back to
>> client, which for now is just base:allocation) or from _SET (empty
>> string is ignored as invalid; client has to specifically ask for
>> base:allocation by name).
>
> "empty string is ignored as invalid", hm, do we have this in spec? I
> think SET and LIST must select exactly same sets of contexts.
No, it is specifically NOT intended that SET and LIST have to produce
the same set of contexts; although I do see your point that as currently
written, it does not appear to require SET to ignore "base:" or to treat
it as an error. At any rate, the spec gives the example of:
> In either case, however, for any given namespace the server MAY, instead of exhaustively listing every matching context available to select (or every context available to select where no query is given), send sufficient context records back to allow a client with knowledge of the namespace to select any context. This may be helpful where a client can construct algorithmic queries. For instance, a client might reply simply with the namespace with no leaf-name (e.g. 'X-FooBar:') or with a range of values (e.g. 'X-ModifiedDate:20160310-20161214'). The semantics of such a reply are a matter for the definition of the namespace. However each namespace returned MUST begin with the relevant namespace, followed by a colon, and then other UTF-8 characters, with the entire string following the restrictions for strings set out earlier in this document.
with the intent being that for some namespaces, it may be easy to
perform an algorithmic query via _LIST to see what ranges are supported,
but that you cannot select ALL elements in the range simultaneously.
The empty query for _LIST exists to enumerate what is supported, but
does not have to equate to an empty query for _SET selecting everything
possible. I could even see it being possible to have some round-trips,
depending on the namespace (of course, any namespace other than "base:"
will be tightly coordinated between both client and server, so they
understand each other - the point was that the NBD spec didn't want to
constrain what a client and server could do as long as they stay within
the generic framework):
C> LIST ""
S> REPLY "base:allocation" id 0
S> REPLY "X-FooBar:" id 0
S> ACK
C> LIST "X-FooBar:"
S> REPLY "X-FooBar:A_Required", id 0
S> REPLY "X-FooBar:A_Min=100", id 0
S> REPLY "X-FooBar:A_Max=200", id 0
S> REPLY "X-FooBar:B_Default=300", id 0
S> REPLY "X-FooBar:B_Min=300", id 0
S> REPLY "X-FooBar:B_Max=400", id 0
S> ACK
C> SET "X-FooBar:A=150" "base:allocation"
S> REPLY "X-FooBar:A=150,B=300", id 1
S> REPLY "base:allocation", id 2
S> ACK
where the global query of all available contexts merely lists that
X-FooBar: is understood, but that a specific query is needed for more
details (to avoid the client having to parse those specifics if it
doesn't care about X-FooBar:), and the specific query sets up the
algorithmic description (parameter A is required, between 100 and 200;
parameter B is optional, between 300 and 400, defaulting to 300), and
the final SET gives the actual request (A given a value, B left to its
default; but the reply names the entire context rather than repeating
the shorter request). So the spec is written to permit something like
that for third-party namespaces, while also trying to be very specific
about the "base:" context as that is the one that needs the most
interoperability.
> It is
> strange behavior of client to set "base:", but it is its decision. And I
> don't thing that it is invalid.
For LIST, querying "base:" makes total sense (for the sake of example,
we may add "base:frob" down the road that does something new. Being
able to LIST whether "base:" turns into just "base:allocation" or into
"base:allocation"+"base:frob" may be useful to a client that understands
both formats and wants to probe if the server is new; and even for a
client right now, the client can gracefully note that it doesn't want to
select "base:frob"). But for SET, it does not (if "base:" turns into
"base:allocation" + "base:frob" down the road, then the server is
wasting time preparing the response to "base:frob" for every
NBD_CMD_BLOCK_STATUS, and the client is wasting time unpacking from the
wire and ignoring it), so having the empty query work on LIST but not on
SET makes sense.
> Formally we may answer with NBD_REP_ERR_TOO_BIG, but it will look weird,
> as client see that both base: and base:allocation returns _one_ context,
> but in one case it is too big. But if we will have several base:
> contextes, server may fairly answer with NBD_REP_ERR_TOO_BIG.
Hmm, you have a point that while a client can ask for "namespace:", the
server should always respond with "namespace:leaf" for the actual
contexts that it supports/selects, so that the client knows which leaves
it actually got, if it does not fail with ERR_TOO_BIG. You are also
right that failing with ERR_TOO_BIG for "base:" seems odd, but it may
make more sense for other namespaces.
>
> So, I think for now the code is ok.
Then this is probably worth something to bring up on the NBD list, if we
need to tweak wording to be more explicit (whether we should
allow/forbid wildcards during SET, or if wildcard queries are intended
only for LIST). Sounds like I have more spec emails to write to the NBD
list.
>
> Also, I don't see NBD_REP_ERR_TOO_BIG possible reply in
> NBD_OPT_LIST_META_CONTEXT description. Should it be here?
Yeah, that's probably also worth adding to the upstream spec, even
though it already encourages LIST results to send compressed information
back that allows a client to contruct valid specific queries, rather
than an exhaustive list of selecting everything possible.
>>> +/* nbd_negotiate_meta_query
>>> + * Return -errno on I/O error, 0 if option was completely handled by
>>> + * sending a reply about inconsistent lengths, or 1 on success. */
>>> +static int nbd_negotiate_meta_query(NBDClient *client,
>>> + NBDExportMetaContexts *meta,
>>> Error **errp)
>>> +{
>>> + int ret;
>>> + char *query, *colon, *namespace, *subquery;
>>
>> Is it worth stack-allocating query here, so you don't have to g_free()
>> it later? NBD limits the maximum string to 4k, which is a little bit
>> big for stack allocation (on an operating system with 4k pages,
>> allocating more than 4k on the stack in one function risks missing the
>> guard page on stack overflow), but we also have the benefit that we
>> KNOW that the set of meta-context namespaces that we support have a
>> much smaller maximum limit of what we even care about.
>
> it is not stack allocated, nbd_alloc_read_size_string calls g_malloc.
Hence my question - do we NEED the malloc'd version, or can we get away
with a stack-allocated space? Although I then revised my question...
>
>>
>>> +
>>> + ret = nbd_alloc_read_size_string(client, &query, errp);
>>> + if (ret <= 0) {
>>> + return ret;
>>> + }
>>> +
>>> + colon = strchr(query, ':');
>>> + if (colon == NULL) {
>>> + ret = nbd_opt_invalid(client, errp, "no colon in query");
>>> + goto out;
>>
>> Hmm, that puts a slight wrinkle into my proposal, or else maybe it is
>> something I should bring up on the NBD list. If we only read 5
>> characters (because the max namespace WE support is "base:"), but a
>> client asks for namespace "X-longname:", we should gracefully ignore
>> the client's request; while we still want to reply with an error to a
>> client that asks for "garbage" with no colon at all. The question for
>> the NBD spec, then, is whether detecting bad client requests that
>> didn't use colon is mandatory for the server (meaning we MUST read the
>> entire namespace request, and search for the colon) or merely best
>> effort (we only have to read 5 characters, and if we silently ignore
>> instead of diagnose a bad namespace request that was longer than that,
>> oh well). Worded from the client, it switches to a question of whether
>> the client should expect the server to diagnose all requests, or must
>> be prepared for the server to ignore requests even where those
>> requests are bogus. Or, the NBD spec may change slightly to pass
>> namespace and leafname as separate fields, both with lengths, rather
>> than a colon, to make it easier for the server to skip over an unknown
>> namespace/leaf pair without having to parse whether a colon was
>> present. I'll send that in a separate email (the upstream NBD list
>> doesn't need to see all my review comments on this thread).
... in light of this thread now on the NBD list.
>
> Thank you for careful review!
No problem. We still have some things to sort out on the NBD list as
well, but I want to make sure we get something that is likely to work
well with other implementations (I'm also trying, on the side, to get
nbdkit to support structured reads so I have something available for
testing cross-implementation support, but it is slow going).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error
2018-02-15 13:51 ` [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error Vladimir Sementsov-Ogievskiy
@ 2018-02-16 17:35 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-16 17:35 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> It is ok, that fatal error hides previous not fatal, but hiding
> first fatal error is a bad feature.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> block/nbd-client.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
Can this trigger in 2.11 clients with structured reads to the point
where we'd want to add qemu-stable in CC? Or did you only hit it once
block_status was added to the mix?
Note that comparing 2.11 server with 2.11 client doesn't help - because
2.11 as server only sends a single chunk per structured read (as the
only structured reply); it wasn't until commit 418638d3 that we have a
qemu server that can send multiple chunks, and it looks like you need
multiple chunks before multiple errors becomes a possibility.
At any rate,
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err
2018-02-15 13:51 ` [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err Vladimir Sementsov-Ogievskiy
@ 2018-02-16 17:38 ` Eric Blake
2018-03-01 11:38 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-16 17:38 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> 1. NBD_REP_ERR_INVALID is not only about length, so, make message more
> general
>
> 2. hex format is not very good: it's hard to read something like
> "option a (set meta context)", so switch to dec.
It would be okay as option 0xa; I also want to be sure we match the
output in server traces with the output in client traces; for example, I
found:
nbd/server.c- error_setg(errp, "Unsupported option 0x%"
PRIx32 " (%s)",
nbd/server.c: option, nbd_opt_lookup(option));
So we want consistency through all the call sites, before this patch is
ready to go, although I agree we need it.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-15 13:51 ` [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part Vladimir Sementsov-Ogievskiy
@ 2018-02-16 20:40 ` Eric Blake
2018-03-09 18:47 ` Vladimir Sementsov-Ogievskiy
` (4 more replies)
0 siblings, 5 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-16 20:40 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Minimal realization: only one extent in server answer is supported.
> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
>
> Tests 140, 147 and 205 are fixed due to now server failed on searching
> export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> +++ b/block/nbd-client.c
> @@ -228,6 +228,45 @@ static int nbd_parse_offset_hole_payload(NBDStructuredReplyChunk *chunk,
> return 0;
> }
>
> +/* nbd_parse_blockstatus_payload
> + * support only one extent in reply and only for
> + * base:allocation context
Reasonable, since the server should not be sending us contexts we did
not ask for during negotiation.
> + */
> +static int nbd_parse_blockstatus_payload(NBDClientSession *client,
> + NBDStructuredReplyChunk *chunk,
> + uint8_t *payload, uint64_t orig_length,
> + NBDExtent *extent, Error **errp)
> +{
> + uint32_t context_id;
> +
> + if (chunk->length != sizeof(context_id) + sizeof(extent)) {
Okay as long as we use REQ_ONE to ensure exactly one extent per chunk.
> + error_setg(errp, "Protocol error: invalid payload for "
> + "NBD_REPLY_TYPE_BLOCK_STATUS");
> + return -EINVAL;
> + }
> +
> + context_id = payload_advance32(&payload);
> + if (client->info.meta_base_allocation_id != context_id) {
> + error_setg(errp, "Protocol error: unexpected context id: %d for "
> + "NBD_REPLY_TYPE_BLOCK_STATUS, when negotiated context "
> + "id is %d", context_id,
> + client->info.meta_base_allocation_id);
> + return -EINVAL;
> + }
> +
> + memcpy(extent, payload, sizeof(*extent));
> + be32_to_cpus(&extent->length);
> + be32_to_cpus(&extent->flags);
Instead of doing a memcpy() and then in-place bit-swizzling, you could
do the swapping as part of assignment, for one less function call (and
make the code a bit easier to extend, if we later drop our REQ_ONE
limitation on only having one extent, because you'll advance payload as
needed):
extent->length = payload_advance32(&payload);
extent->flags = payload_advance32(&payload);
We should probably validate that the length field is a multiple of
min_block (if a server tells us that all operations must be 512-byte
aligned, then reports an extent that is smaller than 512 bytes, we have
no way to ask for the status of the second half of the sector).
Probably also something that needs to be explicitly stated in the NBD
spec. [1]
> +
> + if (extent->length > orig_length) {
> + error_setg(errp, "Protocol error: server sent chunk exceeding requested"
> + " region");
> + return -EINVAL;
That matches the current spec wording, but I'm not sure I agree with it
- what's wrong with a server providing a final extent that extends
beyond the request, if the information was already available for free
(the classic example: if the server never replies with HOLE or ZERO,
then the entire file has the same status, so all requests could
trivially be replied to by taking the starting offset to the end of the
file as the returned length, rather than just clamping at the requested
length).
> + }
> +
> + return 0;
> +}
> +
> /* nbd_parse_error_payload
> * on success @errp contains message describing nbd error reply
> */
> @@ -642,6 +681,61 @@ static int nbd_co_receive_cmdread_reply(NBDClientSession *s, uint64_t handle,
> return iter.ret;
> }
>
> +static int nbd_co_receive_blockstatus_reply(NBDClientSession *s,
> + uint64_t handle, uint64_t length,
> + NBDExtent *extent, Error **errp)
> +{
> + NBDReplyChunkIter iter;
> + NBDReply reply;
> + void *payload = NULL;
> + Error *local_err = NULL;
> + bool received = false;
> +
> + NBD_FOREACH_REPLY_CHUNK(s, iter, handle, s->info.structured_reply,
> + NULL, &reply, &payload)
> + {
> + int ret;
> + NBDStructuredReplyChunk *chunk = &reply.structured;
> +
> + assert(nbd_reply_is_structured(&reply));
> +
> + switch (chunk->type) {
> + case NBD_REPLY_TYPE_BLOCK_STATUS:
Depending on the outcome of the discussion on the NBD list, here's where
you could make a client easily listen to both your initial server (that
sent 5) and a server compliant to the current spec wording (where this
constant is 3); although it remains to be seen if that's the only
difference between your initial implementation and the NBD spec wording
that gets promoted to stable.
> + if (received) {
> + s->quit = true;
> + error_setg(&local_err, "Several BLOCK_STATUS chunks in reply");
> + nbd_iter_error(&iter, true, -EINVAL, &local_err);
> + }
We may change this in the future to ask for more than one context at
once; but for now, this matches that we negotiated for only one context,
so it is fine to hang up on a server that disobeyed negotiation and sent
us too much stuff.
> + received = true;
> +
> + ret = nbd_parse_blockstatus_payload(s, &reply.structured,
> + payload, length, extent,
> + &local_err);
> + if (ret < 0) {
> + s->quit = true;
> + nbd_iter_error(&iter, true, ret, &local_err);
> + }
> + break;
> + default:
> + if (!nbd_reply_type_is_error(chunk->type)) {
> + /* not allowed reply type */
> + s->quit = true;
> + error_setg(&local_err,
> + "Unexpected reply type: %d (%s) "
> + "for CMD_BLOCK_STATUS",
> + chunk->type, nbd_reply_type_lookup(chunk->type));
> + nbd_iter_error(&iter, true, -EINVAL, &local_err);
> + }
> + }
> +
> + g_free(payload);
> + payload = NULL;
> + }
> +
> + error_propagate(errp, iter.err);
> + return iter.ret;
> +}
> +
> static int nbd_co_request(BlockDriverState *bs, NBDRequest *request,
> QEMUIOVector *write_qiov)
> {
> @@ -784,6 +878,50 @@ int nbd_client_co_pdiscard(BlockDriverState *bs, int64_t offset, int bytes)
> return nbd_co_request(bs, &request, NULL);
> }
>
> +int64_t coroutine_fn nbd_client_co_get_block_status(BlockDriverState *bs,
> + int64_t sector_num,
> + int nb_sectors, int *pnum,
> + BlockDriverState **file)
Needs rebasing on top of Kevin's block branch to use the byte-based
interface. I also need to finish up my promised followups on that
series, as NBD (and other protocol drivers) should have consistent
behavior on what it means to report OFFSET_VALID (or whether that should
be limited to just format/filter drivers).
> +{
> + int64_t ret;
> + NBDExtent extent;
> + NBDClientSession *client = nbd_get_client_session(bs);
> + Error *local_err = NULL;
> +
> + uint64_t offset = sector_num << BDRV_SECTOR_BITS;
> + uint32_t bytes = nb_sectors << BDRV_SECTOR_BITS;
> +
> + NBDRequest request = {
> + .type = NBD_CMD_BLOCK_STATUS,
> + .from = offset,
> + .len = bytes,
> + .flags = NBD_CMD_FLAG_REQ_ONE,
> + };
> +
> + if (!client->info.base_allocation) {
> + *pnum = nb_sectors;
> + return BDRV_BLOCK_DATA;
> + }
Hmm - you are not setting *file nor returning OFFSET_VALID - which goes
along with the way Kevin was asking me to clean up the other protocol
drivers ;)
> +
> + ret = nbd_co_send_request(bs, &request, NULL);
> + if (ret < 0) {
> + return ret;
> + }
> +
> + ret = nbd_co_receive_blockstatus_reply(client, request.handle, bytes,
> + &extent, &local_err);
> + if (local_err) {
> + error_report_err(local_err);
> + }
> + if (ret < 0) {
> + return ret;
> + }
> +
> + *pnum = extent.length >> BDRV_SECTOR_BITS;
[1] And now my above worry about a sub-sector reply from the server
(when the server supports min_block of 1 instead of 512) rears its head:
as long as we reply by sectors, we must NOT report a partial sector as a
hole if we are unable to report the tail of the sector as data, but must
instead report the entire sector as data. Thankfully, all that goes
away once you rebase to use the byte-based interface, at which point
we're no longer rounding and risking a result on a partial sector being
portrayed as the wrong status of the entire sector.
> + return (extent.flags & NBD_STATE_HOLE ? 0 : BDRV_BLOCK_DATA) |
> + (extent.flags & NBD_STATE_ZERO ? BDRV_BLOCK_ZERO : 0);
> +}
> +
> void nbd_client_detach_aio_context(BlockDriverState *bs)
> {
> NBDClientSession *client = nbd_get_client_session(bs);
> @@ -828,6 +966,7 @@ int nbd_client_init(BlockDriverState *bs,
>
> client->info.request_sizes = true;
> client->info.structured_reply = true;
> + client->info.base_allocation = true;
Hmm - the combination structured_reply = false and base_allocation =
true is bogus. Then again, these two fields are in-out; left false when
handing over to the kernel NBD transmission phase (since the kernel
module does not yet support structured replies let alone block status),
and true when requested with qemu as the transmission driver (since we
want to use it if available). I don't know if having a single tri-state
enum is any better than two bools (on input, it is either all-or-none;
on output, it is either none (old server), structured reads only (qemu
2.11 server, for example), or all (this series' server).
One of the obvious things that I will be testing is whether applying
your series in a different order (client first, then server) still works
well (the client requests, but fails to get, block status, but can still
use structured reads, when paired against a qemu 2.11 server). (And now
you see why I suggested splitting the earlier patch that adds the
constants and lookup tables for the structured reply additions, so that
server and client can be backported independently)
> +++ b/nbd/client.c
> @@ -594,6 +594,108 @@ static QIOChannel *nbd_receive_starttls(QIOChannel *ioc,
> return QIO_CHANNEL(tioc);
> }
>
> +/* nbd_negotiate_simple_meta_context:
> + * Set one meta context. Simple means that reply must contain zero (not
> + * negotiated) or one (negotiated) contexts. More contexts would be considered
> + * as a protocol error.
> + * return 1 for successful negotiation, context_id is set
> + * 0 if operation is unsupported,
> + * -errno with errp set for any other error
> + */
Good enough for our first use. Will obviously need improvements if we
support base:allocation AND dirty bitmap exposure at the same time, in
future patches ;)
> +static int nbd_negotiate_simple_meta_context(QIOChannel *ioc,
> + const char *export,
> + const char *context,
> + uint32_t *context_id,
> + Error **errp)
> +{
> + int ret;
> + NBDOptionReply reply;
> + uint32_t received_id;
> + bool received;
> + size_t export_len = strlen(export);
> + size_t context_len = strlen(context);
> + size_t data_len = 4 + export_len + 4 + 4 + context_len;
Looks a bit like magic numbers; would some sizeof() constructs make this
any more obvious?
> +
> + char *data = g_malloc(data_len);
> + char *p = data;
> +
> + stl_be_p(p, export_len);
> + memcpy(p += 4, export, export_len);
> + stl_be_p(p += export_len, 1);
> + stl_be_p(p += 4, context_len);
> + memcpy(p += 4, context, context_len);
> +
> + ret = nbd_send_option_request(ioc, NBD_OPT_SET_META_CONTEXT, data_len, data,
So we don't even bother with LIST; either the SET works or we don't use
block status. Fair enough.
> + errp);
> + g_free(data);
> + if (ret < 0) {
> + return ret;
> + }
> +
> + if (nbd_receive_option_reply(ioc, NBD_OPT_SET_META_CONTEXT, &reply,
> + errp) < 0)
> + {
> + return -1;
> + }
> +
> + ret = nbd_handle_reply_err(ioc, &reply, errp);
> + if (ret <= 0) {
> + return ret;
> + }
> +
> + if (reply.type == NBD_REP_META_CONTEXT) {
> + char *name;
> + size_t len;
A bit odd that this isn't a loop; we'll have to revisit that when we can
start requesting more than one type of context at once. But should work
for now - given our initial request, the server shouldn't send us more
than one response.
> +
> + if (nbd_read(ioc, &received_id, sizeof(received_id), errp) < 0) {
> + return -EIO;
> + }
> + be32_to_cpus(&received_id);
> +
> + len = reply.length - sizeof(received_id);
> + name = g_malloc(len + 1);
> + if (nbd_read(ioc, name, len, errp) < 0) {
> + g_free(name);
> + return -EIO;
> + }
> + name[len] = '\0';
> + if (strcmp(context, name)) {
> + error_setg(errp, "Failed to negotiate meta context '%s', server "
> + "answered with different context '%s'", context,
> + name);
This check may not be valid for other context namespaces, but is correct
for "base:allocation".
> + g_free(name);
> + return -1;
> + }
> + g_free(name);
> +
> + received = true;
> +
> + /* receive NBD_REP_ACK */
> + if (nbd_receive_option_reply(ioc, NBD_OPT_SET_META_CONTEXT, &reply,
> + errp) < 0)
> + {
> + return -1;
> + }
> +
> + ret = nbd_handle_reply_err(ioc, &reply, errp);
> + if (ret <= 0) {
> + return ret;
> + }
> + }
> +
> + if (reply.type != NBD_REP_ACK) {
> + error_setg(errp, "Unexpected reply type %" PRIx32 " expected %x",
> + reply.type, NBD_REP_ACK);
> + return -1;
> + }
> +
> + if (received) {
> + *context_id = received_id;
> + return 1;
> + }
> +
> + return 0;
> +}
Looks good.
>
> int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
> QCryptoTLSCreds *tlscreds, const char *hostname,
> @@ -605,10 +707,12 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
> int rc;
> bool zeroes = true;
> bool structured_reply = info->structured_reply;
> + bool base_allocation = info->base_allocation;
>
> trace_nbd_receive_negotiate(tlscreds, hostname ? hostname : "<null>");
>
> info->structured_reply = false;
> + info->base_allocation = false;
> rc = -EINVAL;
>
> if (outioc) {
> @@ -699,6 +803,16 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char *name,
> info->structured_reply = result == 1;
> }
>
> + if (info->structured_reply && base_allocation) {
> + result = nbd_negotiate_simple_meta_context(
> + ioc, name, "base:allocation",
> + &info->meta_base_allocation_id, errp);
> + if (result < 0) {
> + goto fail;
> + }
> + info->base_allocation = result == 1;
> + }
> +
> /* Try NBD_OPT_GO first - if it works, we are done (it
> * also gives us a good message if the server requires
> * TLS). If it is not available, fall back to
Looks like the right place to ask. This also gives us a good message if
the server doesn't recognize the export name (presumably the same
message we would also get under NBD_OPT_GO).
> diff --git a/tests/qemu-iotests/140.out b/tests/qemu-iotests/140.out
> index 7295b3d975..b083e2effd 100644
> --- a/tests/qemu-iotests/140.out
> +++ b/tests/qemu-iotests/140.out
> @@ -8,7 +8,7 @@ wrote 65536/65536 bytes at offset 0
> read 65536/65536 bytes at offset 0
> 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> {"return": {}}
> -can't open device nbd+unix:///drv?socket=TEST_DIR/nbd: Requested export not available
> +can't open device nbd+unix:///drv?socket=TEST_DIR/nbd: Invalid parameters for option 10 (set meta context)
Ouch, that's a regression. Should be fixed by having the server fixed
to send REP_ERR_UNKNOWN when an export name is not found (the same as we
used to get under NBD_OPT_GO); I mentioned this already while reviewing
the server side.
It also means our test is rather sensitive to running qemu as both
client and server; other servers may send different error messages.
Maybe we need to consider sanitizing things to be more independent of
the server and only worry about the client under test - but that's not
your problem in this series (I may be doing some of that as part of my
work to get nbdkit to support structured replies, and finally have a
server other than qemu so I can actually do interop testing).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up
2018-02-15 13:51 ` [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up Vladimir Sementsov-Ogievskiy
@ 2018-02-16 20:44 ` Eric Blake
2018-03-09 18:54 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-16 20:44 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> tests/qemu-iotests/iotests.py | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
What breaks if they aren't moved? But stylistically, this looks
reasonable; and can be merged independently of NBD stuff if someone else
wants.
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 8/9] iotests: add file_path helper
2018-02-15 13:51 ` [Qemu-devel] [PATCH 8/9] iotests: add file_path helper Vladimir Sementsov-Ogievskiy
@ 2018-02-16 20:46 ` Eric Blake
2018-02-20 5:42 ` Jeff Cody
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-16 20:46 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den, Jeff Cody
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Simple way to have auto generated filenames with auto clenup. Like
s/clenup/cleanup/
> FilePath but without using 'with' statement and without additional
> indentation of the whole test.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> tests/qemu-iotests/iotests.py | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
Jeff, where do we stand on your iotests cleanups? Is this something you
want to use?
>
> diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
> index c1302a2f9b..f2d05ca3fd 100644
> --- a/tests/qemu-iotests/iotests.py
> +++ b/tests/qemu-iotests/iotests.py
> @@ -27,6 +27,7 @@ import struct
> import json
> import signal
> import logging
> +import atexit
>
> sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
> import qtest
> @@ -250,6 +251,37 @@ class FilePath(object):
> return False
>
>
> +def file_path_remover():
> + for path in reversed(file_path_remover.paths):
> + try:
> + os.remove(path)
> + except OSError:
> + pass
> +
> +
> +def file_path(*names):
> + ''' Another way to get auto-generated filename that cleans itself up.
> +
> + Use it as simple as:
> +
> + img_a, img_b = file_path('a.img', 'b.img')
> + sock = file_path('socket')
> + '''
> +
> + if not hasattr(file_path_remover, 'paths'):
> + file_path_remover.paths = []
> + atexit.register(file_path_remover)
> +
> + paths = []
> + for name in names:
> + filename = '{0}-{1}'.format(os.getpid(), name)
> + path = os.path.join(test_dir, filename)
> + file_path_remover.paths.append(path)
> + paths.append(path)
> +
> + return paths[0] if len(paths) == 1 else paths
> +
> +
> class VM(qtest.QEMUQtestMachine):
> '''A QEMU VM'''
>
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS
2018-02-15 13:51 ` [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS Vladimir Sementsov-Ogievskiy
@ 2018-02-16 21:02 ` Eric Blake
2018-03-01 11:51 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-16 21:02 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
> tests/qemu-iotests/206 | 34 ++++++++++++++++++++++++++++++++++
> tests/qemu-iotests/206.out | 2 ++
> tests/qemu-iotests/group | 1 +
> 3 files changed, 37 insertions(+)
> create mode 100644 tests/qemu-iotests/206
> create mode 100644 tests/qemu-iotests/206.out
It's a race! Kevin already has test 206 and 207 claimed in his pending
series:
https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02363.html
Whoever loses gets to rebase and renumber (or the maintainer on their
behalf) ;)
>
> diff --git a/tests/qemu-iotests/206 b/tests/qemu-iotests/206
> new file mode 100644
Oops, you forgot to mark this executable. And oops, I forgot to flag
that on test 205. Other inconsistent tests: 096, 124, 129, 132, 136,
139, 148, 152, 163. Separate cleanup patch coming up soon.
> index 0000000000..259e991ec6
> --- /dev/null
> +++ b/tests/qemu-iotests/206
> @@ -0,0 +1,34 @@
> +#!/usr/bin/env python
> +#
> +# Tests for NBD BLOCK_STATUS extension
> +#
> +import iotests
> +from iotests import qemu_img_create, qemu_io, qemu_img_verbose, qemu_nbd, \
> + file_path
> +
> +iotests.verify_image_format(supported_fmts=['qcow2'])
Don't we also need to blacklist v2 files (and only operate on v3 or
newer), since the behavior of zero clusters is much worse on v2 images?
> +
> +disk, nbd_sock = file_path('disk', 'nbd-sock')
> +nbd_uri = 'nbd+unix:///exp?socket=' + nbd_sock
> +
> +qemu_img_create('-f', iotests.imgfmt, disk, '1M')
> +qemu_io('-f', iotests.imgfmt, '-c', 'write 0 512K', disk)
Hopefully large enough for all the major filesystems with sparse support
to show half-data, half-hole, and not run into any weird issues where
granularity differences between filesystems change the outcome.
> +
> +qemu_nbd('-k', nbd_sock, '-x', 'exp', '-f', iotests.imgfmt, disk)
> +qemu_img_verbose('map', '-f', 'raw', '--output=json', nbd_uri)
> diff --git a/tests/qemu-iotests/206.out b/tests/qemu-iotests/206.out
> new file mode 100644
> index 0000000000..0d29724e84
> --- /dev/null
> +++ b/tests/qemu-iotests/206.out
> @@ -0,0 +1,2 @@
> +[{ "start": 0, "length": 524288, "depth": 0, "zero": false, "data": true},
> +{ "start": 524288, "length": 524288, "depth": 0, "zero": true, "data": false}]
But definite evidence of getting block status over NBD! Progress!
And kudos for producing an .out file that I can actually read and
reproduce without the aid of python (in contrast to the more
"unit-test"-y ones like 205, where we had a big long side-discussion
about that. No need to repeat it here).
> diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
> index a2dfe79d86..2c3925566a 100644
> --- a/tests/qemu-iotests/group
> +++ b/tests/qemu-iotests/group
> @@ -202,3 +202,4 @@
> 203 rw auto
> 204 rw auto quick
> 205 rw auto quick
> +206 rw auto quick
>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 8/9] iotests: add file_path helper
2018-02-16 20:46 ` Eric Blake
@ 2018-02-20 5:42 ` Jeff Cody
2018-03-12 10:04 ` Vladimir Sementsov-Ogievskiy
0 siblings, 1 reply; 50+ messages in thread
From: Jeff Cody @ 2018-02-20 5:42 UTC (permalink / raw)
To: Eric Blake
Cc: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block, kwolf,
pbonzini, den, mreitz
On Fri, Feb 16, 2018 at 02:46:35PM -0600, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> >Simple way to have auto generated filenames with auto clenup. Like
>
> s/clenup/cleanup/
>
> >FilePath but without using 'with' statement and without additional
> >indentation of the whole test.
> >
> >Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> >---
> > tests/qemu-iotests/iotests.py | 32 ++++++++++++++++++++++++++++++++
> > 1 file changed, 32 insertions(+)
>
> Jeff, where do we stand on your iotests cleanups? Is this something you
> want to use?
>
This patch has niceties that my patch does not, in that explicit clean-up is
not required. This is also a slight design difference; my patch series
explicitly avoided auto-cleanup, so that ./check could handle it, or
(optionally) leave behind all the mouse droppings for later analysis, in the
case of test failure.
Ideally, I'd love clean-up to be optional; if a test fails, I'd like to have
the option of examining all the intermediate files and output of the test
(and once it resides in its own subdir, that is also side-affect free for
the other tests).
> >
> >diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
> >index c1302a2f9b..f2d05ca3fd 100644
> >--- a/tests/qemu-iotests/iotests.py
> >+++ b/tests/qemu-iotests/iotests.py
> >@@ -27,6 +27,7 @@ import struct
> > import json
> > import signal
> > import logging
> >+import atexit
> > sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
> > import qtest
> >@@ -250,6 +251,37 @@ class FilePath(object):
> > return False
> >+def file_path_remover():
> >+ for path in reversed(file_path_remover.paths):
> >+ try:
> >+ os.remove(path)
> >+ except OSError:
> >+ pass
> >+
> >+
> >+def file_path(*names):
> >+ ''' Another way to get auto-generated filename that cleans itself up.
> >+
> >+ Use it as simple as:
> >+
> >+ img_a, img_b = file_path('a.img', 'b.img')
> >+ sock = file_path('socket')
> >+ '''
> >+
> >+ if not hasattr(file_path_remover, 'paths'):
> >+ file_path_remover.paths = []
> >+ atexit.register(file_path_remover)
> >+
> >+ paths = []
> >+ for name in names:
> >+ filename = '{0}-{1}'.format(os.getpid(), name)
> >+ path = os.path.join(test_dir, filename)
> >+ file_path_remover.paths.append(path)
> >+ paths.append(path)
> >+
> >+ return paths[0] if len(paths) == 1 else paths
> >+
> >+
> > class VM(qtest.QEMUQtestMachine):
> > '''A QEMU VM'''
> >
>
> --
> Eric Blake, Principal Software Engineer
> Red Hat, Inc. +1-919-301-3266
> Virtualization: qemu.org | libvirt.org
>
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (8 preceding siblings ...)
2018-02-15 13:51 ` [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS Vladimir Sementsov-Ogievskiy
@ 2018-02-22 19:30 ` no-reply
2018-02-23 14:02 ` no-reply
` (3 subsequent siblings)
13 siblings, 0 replies; 50+ messages in thread
From: no-reply @ 2018-02-22 19:30 UTC (permalink / raw)
To: vsementsov; +Cc: famz, qemu-devel, qemu-block, kwolf, mreitz, den, pbonzini
Hi,
This series failed build test on ppcbe host. Please find the details below.
Type: series
Message-id: 1518702707-7077-1-git-send-email-vsementsov@virtuozzo.com
Subject: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
=== TEST SCRIPT BEGIN ===
#!/bin/bash
# Testing script will be invoked under the git checkout with
# HEAD pointing to a commit that has the patches applied on top of "base"
# branch
set -e
echo "=== ENV ==="
env
echo "=== PACKAGES ==="
rpm -qa
echo "=== TEST BEGIN ==="
INSTALL=$PWD/install
BUILD=$PWD/build
mkdir -p $BUILD $INSTALL
SRC=$PWD
cd $BUILD
$SRC/configure --prefix=$INSTALL
make -j100
# XXX: we need reliable clean up
# make check -j100 V=1
make install
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
* [new tag] patchew/1519324303-5674-1-git-send-email-aleksandar.markovic@rt-rk.com -> patchew/1519324303-5674-1-git-send-email-aleksandar.markovic@rt-rk.com
- [tag update] patchew/20180222161811.26200-1-berto@igalia.com -> patchew/20180222161811.26200-1-berto@igalia.com
Submodule 'capstone' (git://git.qemu.org/capstone.git) registered for path 'capstone'
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Submodule 'roms/QemuMacDrivers' (git://git.qemu.org/QemuMacDrivers.git) registered for path 'roms/QemuMacDrivers'
Submodule 'roms/SLOF' (git://git.qemu-project.org/SLOF.git) registered for path 'roms/SLOF'
Submodule 'roms/ipxe' (git://git.qemu-project.org/ipxe.git) registered for path 'roms/ipxe'
Submodule 'roms/openbios' (git://git.qemu-project.org/openbios.git) registered for path 'roms/openbios'
Submodule 'roms/openhackware' (git://git.qemu-project.org/openhackware.git) registered for path 'roms/openhackware'
Submodule 'roms/qemu-palcode' (git://github.com/rth7680/qemu-palcode.git) registered for path 'roms/qemu-palcode'
Submodule 'roms/seabios' (git://git.qemu-project.org/seabios.git/) registered for path 'roms/seabios'
Submodule 'roms/seabios-hppa' (git://github.com/hdeller/seabios-hppa.git) registered for path 'roms/seabios-hppa'
Submodule 'roms/sgabios' (git://git.qemu-project.org/sgabios.git) registered for path 'roms/sgabios'
Submodule 'roms/skiboot' (git://git.qemu.org/skiboot.git) registered for path 'roms/skiboot'
Submodule 'roms/u-boot' (git://git.qemu-project.org/u-boot.git) registered for path 'roms/u-boot'
Submodule 'roms/vgabios' (git://git.qemu-project.org/vgabios.git/) registered for path 'roms/vgabios'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into 'capstone'...
Submodule path 'capstone': checked out '22ead3e0bfdb87516656453336160e0a37b066bf'
Cloning into 'dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Cloning into 'roms/QemuMacDrivers'...
Submodule path 'roms/QemuMacDrivers': checked out 'd4e7d7ac663fcb55f1b93575445fcbca372f17a7'
Cloning into 'roms/SLOF'...
Submodule path 'roms/SLOF': checked out 'fa981320a1e0968d6fc1b8de319723ff8212b337'
Cloning into 'roms/ipxe'...
Submodule path 'roms/ipxe': checked out '0600d3ae94f93efd10fc6b3c7420a9557a3a1670'
Cloning into 'roms/openbios'...
Submodule path 'roms/openbios': checked out '54d959d97fb331708767b2fd4a878efd2bbc41bb'
Cloning into 'roms/openhackware'...
Submodule path 'roms/openhackware': checked out 'c559da7c8eec5e45ef1f67978827af6f0b9546f5'
Cloning into 'roms/qemu-palcode'...
Submodule path 'roms/qemu-palcode': checked out 'f3c7e44c70254975df2a00af39701eafbac4d471'
Cloning into 'roms/seabios'...
Submodule path 'roms/seabios': checked out '63451fca13c75870e1703eb3e20584d91179aebc'
Cloning into 'roms/seabios-hppa'...
Submodule path 'roms/seabios-hppa': checked out '649e6202b8d65d46c69f542b1380f840fbe8ab13'
Cloning into 'roms/sgabios'...
Submodule path 'roms/sgabios': checked out 'cbaee52287e5f32373181cff50a00b6c4ac9015a'
Cloning into 'roms/skiboot'...
Submodule path 'roms/skiboot': checked out 'e0ee24c27a172bcf482f6f2bc905e6211c134bcc'
Cloning into 'roms/u-boot'...
Submodule path 'roms/u-boot': checked out 'd85ca029f257b53a96da6c2fb421e78a003a9943'
Cloning into 'roms/vgabios'...
Submodule path 'roms/vgabios': checked out '19ea12c230ded95928ecaef0db47a82231c2e485'
Cloning into 'ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
Switched to a new branch 'test'
7d95dcd iotests: new test 206 for NBD BLOCK_STATUS
906b016 iotests: add file_path helper
015ee72 iotests.py: tiny refactor: move system imports up
1377201 nbd: BLOCK_STATUS for standard get_block_status function: client part
a750bdb nbd/client: fix error messages in nbd_handle_reply_err
6ec6604 block/nbd-client: save first fatal error in nbd_iter_error
1b609ef nbd: BLOCK_STATUS for standard get_block_status function: server part
ac6e460 nbd: change indenting in nbd.h
5e399e1 nbd/server: add nbd_opt_invalid helper
=== OUTPUT BEGIN ===
=== ENV ===
XDG_SESSION_ID=29961
SHELL=/bin/sh
USER=patchew
PATCHEW=./patchew-cli -s https://patchew.org
PATH=/usr/bin:/bin
PWD=/var/tmp/patchew-tester-tmp-ebstrc6d/src
LANG=en_US.UTF-8
HOME=/home/patchew
SHLVL=2
LOGNAME=patchew
XDG_RUNTIME_DIR=/run/user/1000
_=/usr/bin/env
=== PACKAGES ===
telepathy-filesystem-0.0.2-6.el7.noarch
ipa-common-4.5.0-20.el7.centos.noarch
ipa-client-common-4.5.0-20.el7.centos.noarch
nhn-nanum-fonts-common-3.020-9.el7.noarch
perl-srpm-macros-1-8.el7.noarch
glibc-common-2.17-196.el7.ppc64
zlib-1.2.7-17.el7.ppc64
nss-util-3.28.4-3.el7.ppc64
libSM-1.2.2-2.el7.ppc64
avahi-libs-0.6.31-17.el7.ppc64
libogg-1.3.0-7.el7.ppc64
libtevent-0.9.31-1.el7.ppc64
libicu-50.1.2-15.el7.ppc64
libXext-1.3.3-3.el7.ppc64
libXinerama-1.1.3-2.1.el7.ppc64
boost-system-1.53.0-27.el7.ppc64
xz-5.2.2-1.el7.ppc64
apr-1.4.8-3.el7.ppc64
pixman-0.34.0-1.el7.ppc64
libplist-1.12-3.el7.ppc64
boost-thread-1.53.0-27.el7.ppc64
libraw1394-2.1.0-2.el7.ppc64
newt-0.52.15-4.el7.ppc64
unixODBC-2.3.1-11.el7.ppc64
groff-base-1.22.2-8.el7.ppc64
psmisc-22.20-15.el7.ppc64
libpfm-4.7.0-4.el7.ppc64
perl-parent-0.225-244.el7.noarch
perl-libs-5.16.3-292.el7.ppc64
perl-Scalar-List-Utils-1.27-248.el7.ppc64
perl-Pod-Simple-3.28-4.el7.noarch
perl-Module-Load-0.24-3.el7.noarch
perl-Module-Pluggable-4.8-3.el7.noarch
perl-CPAN-Meta-2.120921-5.el7.noarch
perl-Object-Accessor-0.42-292.el7.noarch
perl-Module-Loaded-0.08-292.el7.noarch
boost-locale-1.53.0-27.el7.ppc64
fuse-2.9.2-8.el7.ppc64
xml-common-0.6.3-39.el7.noarch
libunistring-0.9.3-9.el7.ppc64
boost-math-1.53.0-27.el7.ppc64
yajl-2.0.4-4.el7.ppc64
libthai-0.1.14-9.el7.ppc64
libvisual-0.4.0-16.el7.ppc64
iptables-1.4.21-18.0.1.el7.centos.ppc64
teamd-1.25-5.el7.ppc64
perl-YAML-0.84-5.el7.noarch
perl-DBD-SQLite-1.39-3.el7.ppc64
perl-Pod-Coverage-0.23-3.el7.noarch
perl-HTML-Parser-3.71-4.el7.ppc64
perl-YAML-Tiny-1.51-6.el7.noarch
perl-FCGI-0.74-8.el7.ppc64
device-mapper-persistent-data-0.7.0-0.1.rc6.el7.ppc64
lzop-1.03-10.el7.ppc64
tcp_wrappers-devel-7.6-77.el7.ppc64
vim-minimal-7.4.160-2.el7.ppc64
dyninst-9.3.1-1.el7.ppc64
check-0.9.9-5.el7.ppc64
lsof-4.87-4.el7.ppc64
redhat-menus-12.0.2-8.el7.noarch
fontconfig-2.10.95-11.el7.ppc64
libXft-2.3.2-2.el7.ppc64
json-glib-1.2.6-1.el7.ppc64
zlib-devel-1.2.7-17.el7.ppc64
imsettings-libs-1.6.3-9.el7.ppc64
glibmm24-2.50.0-1.el7.ppc64
gnome-icon-theme-3.12.0-1.el7.noarch
python-enum34-1.0.4-1.el7.noarch
pam-1.1.8-18.el7.ppc64
procps-ng-3.3.10-16.el7.ppc64
gettext-libs-0.19.8.1-2.el7.ppc64
libXext-devel-1.3.3-3.el7.ppc64
libXinerama-devel-1.1.3-2.1.el7.ppc64
xz-devel-5.2.2-1.el7.ppc64
libpinyin-0.9.93-4.el7.ppc64
e2fsprogs-1.42.9-10.el7.ppc64
pyparsing-1.5.6-9.el7.noarch
fipscheck-lib-1.4.1-6.el7.ppc64
systemtap-sdt-devel-3.1-3.el7.ppc64
perl-Module-Build-0.40.05-2.el7.noarch
elfutils-devel-0.168-8.el7.ppc64
python-pwquality-1.2.3-4.el7.ppc64
xdg-user-dirs-0.15-4.el7.ppc64
xorg-x11-xbitmaps-1.1.1-6.el7.noarch
p11-kit-devel-0.23.5-3.el7.ppc64
nettle-devel-2.7.1-8.el7.ppc64
python-qrcode-core-5.0.1-1.el7.noarch
python-inotify-0.9.4-4.el7.noarch
python-backports-ssl_match_hostname-3.4.0.2-4.el7.noarch
python-schedutils-0.4-6.el7.ppc64
python-beaker-1.5.4-10.el7.noarch
python-sss-murmur-1.15.2-50.el7.ppc64
blktrace-1.0.5-8.el7.ppc64
bind-libs-9.9.4-50.el7.ppc64
perl-HTML-Format-2.10-7.el7.noarch
freerdp-libs-1.0.2-10.el7.ppc64
nss-3.28.4-8.el7.ppc64
rpm-4.11.3-25.el7.ppc64
libuser-0.60-7.el7_1.ppc64
mailx-12.5-16.el7.ppc64
color-filesystem-1-13.el7.noarch
pcp-libs-3.11.8-7.el7.ppc64
libproxy-0.4.11-10.el7.ppc64
libreport-rhel-anaconda-bugzilla-2.1.11-38.el7.centos.ppc64
pcsc-lite-libs-1.8.8-6.el7.ppc64
libao-1.1.0-8.el7.ppc64
pth-2.0.7-23.el7.ppc64
yum-plugin-fastestmirror-1.1.31-42.el7.noarch
sgpio-1.2.0.10-13.el7.ppc64
libfastjson-0.99.4-2.el7.ppc64
lsscsi-0.27-6.el7.ppc64
util-linux-2.23.2-43.el7.ppc64
systemd-219-42.el7.ppc64
mesa-libGL-17.0.1-6.20170307.el7.ppc64
NetworkManager-glib-1.8.0-9.el7.ppc64
gstreamer-plugins-base-0.10.36-10.el7.ppc64
samba-common-4.6.2-8.el7.noarch
cairomm-1.12.0-1.el7.ppc64
crontabs-1.11-6.20121102git.el7.noarch
libstoragemgmt-python-1.4.0-3.el7.noarch
pciutils-3.5.1-2.el7.ppc64
speech-dispatcher-0.7.1-15.el7.ppc64
bluez-5.44-2.el7.ppc64
systemd-python-219-42.el7.ppc64
openssh-7.4p1-11.el7.ppc64
at-spi2-core-devel-2.22.0-1.el7.ppc64
NetworkManager-team-1.8.0-9.el7.ppc64
dracut-network-033-502.el7.ppc64
openldap-devel-2.4.44-5.el7.ppc64
abrt-addon-ccpp-2.1.11-48.el7.centos.ppc64
xorg-x11-drv-ati-7.7.1-3.20160928git3fc839ff.el7.ppc64
autofs-5.0.7-69.el7.ppc64
pango-devel-1.40.4-1.el7.ppc64
cups-pk-helper-0.2.6-2.el7.ppc64
firewalld-0.4.4.4-6.el7.noarch
hplip-common-3.15.9-3.el7.ppc64
usb_modeswitch-data-20160612-2.el7.noarch
usbmuxd-1.1.0-1.el7.ppc64
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gedit-3.22.0-3.el7.ppc64
libcanberra-devel-0.30-5.el7.ppc64
setroubleshoot-3.2.28-3.el7.ppc64
ibus-m17n-1.3.4-13.el7.ppc64
gnome-screenshot-3.22.0-1.el7.ppc64
xdg-user-dirs-gtk-0.10-4.el7.ppc64
ppc64-utils-0.14-16.el7.ppc64
man-db-2.6.3-9.el7.ppc64
gnutls-devel-3.3.26-9.el7.ppc64
paps-0.6.8-28.el7.1.ppc64
qt-odbc-4.8.5-13.el7.ppc64
NetworkManager-ppp-1.8.0-9.el7.ppc64
cifs-utils-6.2-10.el7.ppc64
postfix-2.10.1-6.el7.ppc64
crda-3.13_2016.02.08-1.el7.ppc64
memstomp-0.1.4-11.el7.ppc64
rpm-build-4.11.3-25.el7.ppc64
postgresql-devel-9.2.21-1.el7.ppc64
cups-devel-1.6.3-29.el7.ppc64
libxslt-devel-1.1.28-5.el7.ppc64
qt3-ODBC-3.3.8b-51.el7.ppc64
libcap-ng-devel-0.7.5-4.el7.ppc64
dstat-0.7.2-12.el7.noarch
libhugetlbfs-devel-2.16-12.el7.ppc64
perl-XML-Grove-0.46alpha-52.el7.noarch
enscript-1.6.6-6.el7.ppc64
ntsysv-1.7.4-1.el7.ppc64
indent-2.2.11-13.el7.ppc64
dejavu-sans-mono-fonts-2.33-6.el7.noarch
overpass-fonts-2.1-1.el7.noarch
gnu-free-mono-fonts-20120503-8.el7.noarch
lohit-tamil-fonts-2.5.3-2.el7.noarch
lohit-punjabi-fonts-2.5.3-2.el7.noarch
google-crosextra-carlito-fonts-1.103-0.2.20130920.el7.noarch
lrzsz-0.12.20-36.el7.ppc64
iwl2030-firmware-18.168.6.1-56.el7.noarch
iwl7265-firmware-22.0.7.0-56.el7.noarch
man-pages-overrides-7.4.3-1.el7.ppc64
gpg-pubkey-352c64e5-52ae6884
=== TEST BEGIN ===
Install prefix /var/tmp/patchew-tester-tmp-ebstrc6d/src/install
BIOS directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/share/qemu
firmware path /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/share/qemu-firmware
binary directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/bin
library directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/lib
module directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/lib/qemu
libexec directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/libexec
include directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/include
config directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/etc
local state directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/var
Manual directory /var/tmp/patchew-tester-tmp-ebstrc6d/src/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path /var/tmp/patchew-tester-tmp-ebstrc6d/src
GIT binary git
GIT submodules ui/keycodemapdb dtc capstone
C compiler cc
Host C compiler cc
C++ compiler c++
Objective-C compiler cc
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/include/pixman-1 -I$(SRC_PATH)/dtc/libfdt -Werror -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -DNCURSES_WIDECHAR -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wendif-labels -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -Wno-missing-braces -I/usr/include/p11-kit-1 -I/usr/include/libpng15 -I$(SRC_PATH)/capstone/include
LDFLAGS -Wl,--warn-common -m64 -g
make make
install install
python python -B
smbd /usr/sbin/smbd
module support no
host CPU ppc64
host big endian yes
target list aarch64-softmmu alpha-softmmu arm-softmmu cris-softmmu hppa-softmmu i386-softmmu lm32-softmmu m68k-softmmu microblazeel-softmmu microblaze-softmmu mips64el-softmmu mips64-softmmu mipsel-softmmu mips-softmmu moxie-softmmu nios2-softmmu or1k-softmmu ppc64-softmmu ppcemb-softmmu ppc-softmmu s390x-softmmu sh4eb-softmmu sh4-softmmu sparc64-softmmu sparc-softmmu tricore-softmmu unicore32-softmmu x86_64-softmmu xtensaeb-softmmu xtensa-softmmu aarch64_be-linux-user aarch64-linux-user alpha-linux-user armeb-linux-user arm-linux-user cris-linux-user hppa-linux-user i386-linux-user m68k-linux-user microblazeel-linux-user microblaze-linux-user mips64el-linux-user mips64-linux-user mipsel-linux-user mips-linux-user mipsn32el-linux-user mipsn32-linux-user nios2-linux-user or1k-linux-user ppc64abi32-linux-user ppc64le-linux-user ppc64-linux-user ppc-linux-user s390x-linux-user sh4eb-linux-user sh4-linux-user sparc32plus-linux-user sparc64-linux-user sparc-linux-user tilegx-linux-user x86_64-linux-user
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
SDL support yes (1.2.15)
GTK support yes (3.22.10)
GTK GL support no
VTE support no
TLS priority NORMAL
GNUTLS support yes
GNUTLS rnd yes
libgcrypt no
libgcrypt kdf no
nettle yes (2.7.1)
nettle kdf yes
libtasn1 yes
curses support yes
virgl support no
curl support yes
mingw32 support no
Audio drivers oss
Block whitelist (rw)
Block whitelist (ro)
VirtFS support yes
Multipath support no
VNC support yes
VNC SASL support yes
VNC JPEG support yes
VNC PNG support yes
xen support no
brlapi support no
bluez support no
Documentation no
PIE no
vde support no
netmap support no
Linux AIO support yes
ATTR/XATTR support yes
Install blobs yes
KVM support yes
HAX support no
HVF support no
WHPX support no
TCG support yes
TCG debug enabled no
TCG interpreter no
malloc trim support yes
RDMA support yes
fdt support yes
preadv support yes
fdatasync yes
madvise yes
posix_madvise yes
posix_memalign yes
libcap-ng support yes
vhost-net support yes
vhost-scsi support yes
vhost-vsock support yes
vhost-user support yes
Trace backends log
spice support no
rbd support no
xfsctl support no
smartcard support no
libusb yes
usb net redir no
OpenGL support no
OpenGL dmabufs no
libiscsi support no
libnfs support no
build guest agent yes
QGA VSS support no
QGA w32 disk info no
QGA MSI support no
seccomp support no
coroutine backend ucontext
coroutine pool yes
debug stack usage no
crypto afalg no
GlusterFS support no
gcov gcov
gcov enabled no
TPM support yes
libssh2 support no
TPM passthrough no
TPM emulator yes
QOM debugging yes
Live block migration yes
lzo support no
snappy support no
bzip2 support yes
NUMA host support yes
libxml2 yes
tcmalloc support no
jemalloc support no
avx2 optimization no
replication support yes
VxHS block device no
capstone git
WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0
GEN aarch64-softmmu/config-devices.mak.tmp
GEN alpha-softmmu/config-devices.mak.tmp
GEN arm-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak.tmp
GEN hppa-softmmu/config-devices.mak.tmp
GEN i386-softmmu/config-devices.mak.tmp
GEN m68k-softmmu/config-devices.mak.tmp
GEN microblazeel-softmmu/config-devices.mak.tmp
GEN lm32-softmmu/config-devices.mak.tmp
GEN microblaze-softmmu/config-devices.mak.tmp
GEN mips64el-softmmu/config-devices.mak.tmp
GEN mips64-softmmu/config-devices.mak.tmp
GEN mipsel-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak
GEN moxie-softmmu/config-devices.mak.tmp
GEN mips-softmmu/config-devices.mak.tmp
GEN nios2-softmmu/config-devices.mak.tmp
GEN arm-softmmu/config-devices.mak
GEN microblaze-softmmu/config-devices.mak
GEN aarch64-softmmu/config-devices.mak
GEN hppa-softmmu/config-devices.mak
GEN or1k-softmmu/config-devices.mak.tmp
GEN microblazeel-softmmu/config-devices.mak
GEN m68k-softmmu/config-devices.mak
GEN ppc64-softmmu/config-devices.mak.tmp
GEN alpha-softmmu/config-devices.mak
GEN lm32-softmmu/config-devices.mak
GEN ppc-softmmu/config-devices.mak.tmp
GEN ppcemb-softmmu/config-devices.mak.tmp
GEN s390x-softmmu/config-devices.mak.tmp
GEN sh4eb-softmmu/config-devices.mak.tmp
GEN sh4-softmmu/config-devices.mak.tmp
GEN sparc-softmmu/config-devices.mak.tmp
GEN sparc64-softmmu/config-devices.mak.tmp
GEN tricore-softmmu/config-devices.mak.tmp
GEN nios2-softmmu/config-devices.mak
GEN unicore32-softmmu/config-devices.mak.tmp
GEN x86_64-softmmu/config-devices.mak.tmp
GEN xtensaeb-softmmu/config-devices.mak.tmp
GEN xtensa-softmmu/config-devices.mak.tmp
GEN i386-softmmu/config-devices.mak
GEN or1k-softmmu/config-devices.mak
GEN sparc-softmmu/config-devices.mak
GEN moxie-softmmu/config-devices.mak
GEN armeb-linux-user/config-devices.mak.tmp
GEN mips64-softmmu/config-devices.mak
GEN arm-linux-user/config-devices.mak.tmp
GEN hppa-linux-user/config-devices.mak.tmp
GEN i386-linux-user/config-devices.mak.tmp
GEN m68k-linux-user/config-devices.mak.tmp
GEN microblazeel-linux-user/config-devices.mak.tmp
GEN aarch64-linux-user/config-devices.mak.tmp
GEN microblaze-linux-user/config-devices.mak.tmp
GEN aarch64_be-linux-user/config-devices.mak.tmp
GEN cris-linux-user/config-devices.mak.tmp
GEN mips64el-linux-user/config-devices.mak.tmp
GEN sparc64-softmmu/config-devices.mak
GEN xtensa-softmmu/config-devices.mak
GEN alpha-linux-user/config-devices.mak.tmp
GEN mips-linux-user/config-devices.mak.tmp
GEN mipsel-linux-user/config-devices.mak.tmp
GEN mipsn32el-linux-user/config-devices.mak.tmp
GEN mips-softmmu/config-devices.mak
GEN mipsn32-linux-user/config-devices.mak.tmp
GEN xtensaeb-softmmu/config-devices.mak
GEN nios2-linux-user/config-devices.mak.tmp
GEN ppc64abi32-linux-user/config-devices.mak.tmp
GEN ppc64-linux-user/config-devices.mak.tmp
GEN or1k-linux-user/config-devices.mak.tmp
GEN sh4eb-softmmu/config-devices.mak
GEN sh4-linux-user/config-devices.mak.tmp
GEN ppc64le-linux-user/config-devices.mak.tmp
GEN arm-linux-user/config-devices.mak
GEN s390x-linux-user/config-devices.mak.tmp
GEN ppc-linux-user/config-devices.mak.tmp
GEN sh4eb-linux-user/config-devices.mak.tmp
GEN mips64-linux-user/config-devices.mak.tmp
GEN sparc32plus-linux-user/config-devices.mak.tmp
GEN sh4-softmmu/config-devices.mak
GEN sparc64-linux-user/config-devices.mak.tmp
GEN alpha-linux-user/config-devices.mak
GEN tricore-softmmu/config-devices.mak
GEN tilegx-linux-user/config-devices.mak.tmp
GEN hppa-linux-user/config-devices.mak
GEN x86_64-linux-user/config-devices.mak.tmp
GEN mipsel-softmmu/config-devices.mak
GEN cris-linux-user/config-devices.mak
GEN sparc-linux-user/config-devices.mak.tmp
GIT ui/keycodemapdb dtc capstone
GEN m68k-linux-user/config-devices.mak
GEN s390x-softmmu/config-devices.mak
GEN aarch64_be-linux-user/config-devices.mak
GEN microblazeel-linux-user/config-devices.mak
GEN mips64el-linux-user/config-devices.mak
GEN mips-linux-user/config-devices.mak
GEN aarch64-linux-user/config-devices.mak
GEN nios2-linux-user/config-devices.mak
GEN config-host.h
GEN ppc-softmmu/config-devices.mak
GEN qemu-options.def
GEN i386-linux-user/config-devices.mak
GEN mips64el-softmmu/config-devices.mak
GEN ppcemb-softmmu/config-devices.mak
GEN armeb-linux-user/config-devices.mak
GEN microblaze-linux-user/config-devices.mak
GEN mipsel-linux-user/config-devices.mak
GEN mipsn32el-linux-user/config-devices.mak
GEN unicore32-softmmu/config-devices.mak
GEN mipsn32-linux-user/config-devices.mak
GEN or1k-linux-user/config-devices.mak
GEN x86_64-softmmu/config-devices.mak
GEN ppc64abi32-linux-user/config-devices.mak
GEN ppc64le-linux-user/config-devices.mak
GEN mips64-linux-user/config-devices.mak
GEN ppc64-linux-user/config-devices.mak
GEN ppc-linux-user/config-devices.mak
GEN ppc64-softmmu/config-devices.mak
GEN s390x-linux-user/config-devices.mak
GEN sh4eb-linux-user/config-devices.mak
GEN sh4-linux-user/config-devices.mak
GEN sparc32plus-linux-user/config-devices.mak
GEN sparc64-linux-user/config-devices.mak
GEN sparc-linux-user/config-devices.mak
GEN tilegx-linux-user/config-devices.mak
GEN x86_64-linux-user/config-devices.mak
GEN qmp-commands.h
GEN qapi-visit.h
GEN qapi-types.h
GEN qapi-event.h
GEN qmp-marshal.c
GEN qapi-types.c
GEN qapi-visit.c
GEN qapi-event.c
GEN qmp-introspect.h
GEN qmp-introspect.c
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN trace/generated-tcg-tracers.h
GEN module_block.h
GEN trace/generated-helpers.c
GEN tests/test-qapi-types.h
GEN tests/test-qapi-visit.h
GEN tests/test-qmp-commands.h
GEN tests/test-qmp-introspect.h
GEN tests/test-qapi-event.h
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN chardev/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
GEN hw/net/trace.h
GEN hw/rdma/trace.h
GEN hw/rdma/vmw/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/misc/macio/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sparc64/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/pci-host/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/hppa/trace.h
GEN hw/xen/trace.h
GEN hw/ide/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN accel/tcg/trace.h
GEN accel/kvm/trace.h
GEN nbd/trace.h
GEN scsi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN chardev/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/rdma/trace.c
GEN hw/rdma/vmw/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/misc/macio/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sparc64/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/pci-host/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/hppa/trace.c
GEN hw/xen/trace.c
GEN hw/ide/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN accel/tcg/trace.c
GEN accel/kvm/trace.c
GEN nbd/trace.c
GEN scsi/trace.c
GEN config-all-devices.mak
mkdir -p dtc/libfdt
mkdir -p dtc/tests
GEN ui/input-keymap-atset1-to-qcode.c
GEN ui/input-keymap-linux-to-qcode.c
GEN ui/input-keymap-qcode-to-atset1.c
GEN ui/input-keymap-qcode-to-atset2.c
GEN ui/input-keymap-qcode-to-atset3.c
GEN ui/input-keymap-qcode-to-linux.c
GEN ui/input-keymap-qcode-to-qnum.c
GEN ui/input-keymap-qcode-to-sun.c
GEN ui/input-keymap-qnum-to-qcode.c
GEN ui/input-keymap-usb-to-qcode.c
GEN ui/input-keymap-win32-to-qcode.c
GEN ui/input-keymap-x11-to-qcode.c
CC cs.o
GEN ui/input-keymap-xorgevdev-to-qcode.c
GEN ui/input-keymap-xorgkbd-to-qcode.c
CC SStream.o
CC utils.o
GEN ui/input-keymap-xorgxquartz-to-qcode.c
CC MCInstrDesc.o
GEN ui/input-keymap-xorgxwin-to-qcode.c
CC MCRegisterInfo.o
CC arch/ARM/ARMDisassembler.o
CC arch/ARM/ARMMapping.o
CC arch/ARM/ARMInstPrinter.o
CC arch/ARM/ARMModule.o
CC arch/AArch64/AArch64BaseInfo.o
CC arch/AArch64/AArch64Disassembler.o
CC arch/AArch64/AArch64Module.o
CC arch/AArch64/AArch64InstPrinter.o
CC arch/AArch64/AArch64Mapping.o
CC arch/Mips/MipsDisassembler.o
CC arch/Mips/MipsInstPrinter.o
CC arch/Mips/MipsModule.o
CC arch/Mips/MipsMapping.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/dumptrees.c
CC arch/PowerPC/PPCDisassembler.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/trees.S
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/value-labels.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/asm_tree_dump.c
CC arch/PowerPC/PPCModule.o
CC arch/PowerPC/PPCMapping.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/testutils.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/truncated_property.c
CC arch/Sparc/SparcDisassembler.o
CC arch/PowerPC/PPCInstPrinter.o
CC arch/Sparc/SparcInstPrinter.o
CC arch/Sparc/SparcMapping.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/check_path.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/overlay_bad_fixup.c
CC arch/SystemZ/SystemZMapping.o
CC arch/Sparc/SparcModule.o
CC arch/SystemZ/SystemZDisassembler.o
CC arch/SystemZ/SystemZInstPrinter.o
CC arch/SystemZ/SystemZModule.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/overlay.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/subnode_iterate.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/property_iterate.c
CC arch/X86/X86Disassembler.o
CC arch/X86/X86IntelInstPrinter.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/integer-expressions.c
CC arch/SystemZ/SystemZMCTargetDesc.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/utilfdt_test.c
CC arch/X86/X86DisassemblerDecoder.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/path_offset_aliases.c
CC arch/X86/X86Mapping.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/add_subnode_with_nops.c
CC arch/X86/X86ATTInstPrinter.o
CC arch/X86/X86Module.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/dtbs_equal_ordered.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/dtb_reverse.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/extra-terminating-null.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/dtbs_equal_unordered.c
CC arch/XCore/XCoreModule.o
CC MCInst.o
CC arch/XCore/XCoreDisassembler.o
CC arch/XCore/XCoreInstPrinter.o
CC arch/XCore/XCoreMapping.o
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/incbin.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/phandle_format.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/boot-cpuid.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/path-references.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/string_escapes.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/references.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/appendprop2.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/propname_escapes.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/appendprop1.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/del_node.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/del_property.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/setprop.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/open_pack.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/nopulate.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/sw_tree1.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/set_name.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/move_and_save.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/mangle-layout.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/nop_node.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/rw_tree1.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/nop_property.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/stringlist.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/setprop_inplace.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/notfound.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/char_literal.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/sized_cells.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/addr_size_cells.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/get_alias.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/node_offset_by_compatible.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/node_check_compatible.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/node_offset_by_phandle.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/node_offset_by_prop_value.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/parent_offset.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/supernode_atdepth_offset.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/get_path.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/get_phandle.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/getprop.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/get_name.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/path_offset.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/subnode_offset.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/find_property.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/root_node.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/tests/get_mem_rsv.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_overlay.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_addresses.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_empty_tree.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_strerror.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_sw.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_rw.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_wip.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt_ro.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/libfdt/fdt.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/util.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/fdtoverlay.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/fdtput.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/fdtget.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/fdtdump.c
LEX convert-dtsv0-lexer.lex.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/srcpos.c
BISON dtc-parser.tab.c
LEX dtc-lexer.lex.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/treesource.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/livetree.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/fstree.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/flattree.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/data.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/dtc.c
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/checks.c
DEP convert-dtsv0-lexer.lex.c
DEP dtc-parser.tab.c
DEP dtc-lexer.lex.c
CHK version_gen.h
UPD version_gen.h
DEP /var/tmp/patchew-tester-tmp-ebstrc6d/src/dtc/util.c
CC libfdt/fdt.o
CC libfdt/fdt_ro.o
CC libfdt/fdt_wip.o
CC libfdt/fdt_sw.o
CC libfdt/fdt_rw.o
CC libfdt/fdt_strerror.o
CC libfdt/fdt_empty_tree.o
CC libfdt/fdt_addresses.o
CC libfdt/fdt_overlay.o
AR libfdt/libfdt.a
ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
AR libcapstone.a
ar: creating /var/tmp/patchew-tester-tmp-ebstrc6d/src/build/capstone/libcapstone.a
mkdir -p dtc/libfdt
mkdir -p dtc/tests
CC tests/qemu-iotests/socket_scm_helper.o
GEN qga/qapi-generated/qga-qapi-types.h
GEN qga/qapi-generated/qga-qapi-visit.h
GEN qga/qapi-generated/qga-qmp-commands.h
GEN qga/qapi-generated/qga-qapi-types.c
GEN qga/qapi-generated/qga-qapi-visit.c
GEN qga/qapi-generated/qga-qmp-marshal.c
CC qmp-introspect.o
CC qapi-types.o
CC qapi-visit.o
CC qapi-event.o
CC qapi/qapi-visit-core.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qobject-output-visitor.o
CC qapi/qmp-dispatch.o
CC qapi/qmp-registry.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qmp-event.o
CC qapi/qapi-clone-visitor.o
CC qapi/qapi-util.o
CC qobject/qnull.o
CC qobject/qnum.o
CC qobject/qstring.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qlit.o
CC qobject/qbool.o
CC qobject/json-lexer.o
CC qobject/qjson.o
CC qobject/json-parser.o
CC util/osdep.o
CC trace/qmp.o
CC qobject/qobject.o
CC qobject/json-streamer.o
CC trace/control.o
CC util/cutils.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/qemu-timer.o
CC util/async.o
CC util/thread-pool.o
CC util/compatfd.o
CC util/mmap-alloc.o
CC util/event_notifier-posix.o
CC util/memfd.o
CC util/envlist.o
CC util/qemu-thread-posix.o
CC util/path.o
CC util/module.o
CC util/hbitmap.o
CC util/qemu-openpty.o
CC util/main-loop.o
CC util/acl.o
CC util/aio-posix.o
CC util/iohandler.o
CC util/oslib-posix.o
CC util/cacheinfo.o
CC util/bitmap.o
CC util/host-utils.o
CC util/bitops.o
CC util/error.o
CC util/qemu-error.o
CC util/fifo8.o
CC util/qemu-config.o
CC util/id.o
CC util/iov.o
CC util/uri.o
CC util/qemu-sockets.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/crc32c.o
CC util/hexdump.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/readline.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-ucontext.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/pagesize.o
CC util/qdist.o
CC util/qht.o
CC util/range.o
CC util/stats64.o
CC util/systemd.o
CC util/vfio-helpers.o
CC trace-root.o
CC crypto/trace.o
CC util/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC chardev/trace.o
CC hw/block/trace.o
CC hw/block/dataplane/trace.o
CC hw/char/trace.o
CC hw/net/trace.o
CC hw/intc/trace.o
CC hw/rdma/vmw/trace.o
CC hw/rdma/trace.o
CC hw/virtio/trace.o
CC hw/audio/trace.o
CC hw/misc/trace.o
CC hw/misc/macio/trace.o
CC hw/scsi/trace.o
CC hw/usb/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/input/trace.o
CC hw/timer/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sparc64/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/9pfs/trace.o
CC hw/ppc/trace.o
CC hw/pci/trace.o
CC hw/pci-host/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/hppa/trace.o
CC hw/xen/trace.o
CC hw/ide/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/i386/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC qapi/trace.o
CC linux-user/trace.o
CC accel/tcg/trace.o
CC accel/kvm/trace.o
CC nbd/trace.o
CC scsi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-def.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/blk-commit-all.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/cpu-get-clock.o
CC stubs/error-printf.o
CC stubs/dump.o
CC stubs/clock-warp.o
CC stubs/fdset.o
CC stubs/gdbstub.o
CC stubs/cpu-get-icount.o
CC stubs/get-vm-name.o
CC stubs/iothread.o
CC stubs/iothread-lock.o
CC stubs/is-daemonized.o
CC stubs/linux-aio.o
CC stubs/machine-init-done.o
CC stubs/migr-blocker.o
CC stubs/change-state-handler.o
CC stubs/monitor.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/slirp.o
CC stubs/set-fd-handler.o
CC stubs/sysbus.o
CC stubs/tpm.o
CC stubs/trace-control.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/qmp_pc_dimm.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/vmgenid.o
CC stubs/xen-common.o
CC stubs/xen-hvm.o
CC stubs/pci-host-piix.o
CC stubs/ram-block.o
CC contrib/ivshmem-client/ivshmem-client.o
CC contrib/ivshmem-client/main.o
CC contrib/ivshmem-server/ivshmem-server.o
CC contrib/ivshmem-server/main.o
CC qemu-nbd.o
CC block.o
CC blockjob.o
CC qemu-io-cmds.o
CC replication.o
CC block/raw-format.o
CC block/qcow.o
CC block/vdi.o
CC block/vmdk.o
CC block/cloop.o
CC block/bochs.o
CC block/vpc.o
CC block/vvfat.o
CC block/dmg.o
CC block/qcow2.o
CC block/qcow2-cluster.o
CC block/qcow2-refcount.o
CC block/qcow2-snapshot.o
CC block/qcow2-cache.o
CC block/qcow2-bitmap.o
CC block/qed.o
CC block/qed-l2-cache.o
CC block/qed-table.o
CC block/qed-cluster.o
CC block/qed-check.o
CC block/vhdx.o
CC block/vhdx-log.o
CC block/vhdx-endian.o
CC block/quorum.o
CC block/parallels.o
CC block/blkdebug.o
CC block/blkverify.o
CC block/blkreplay.o
CC block/block-backend.o
CC block/snapshot.o
CC block/qapi.o
CC block/file-posix.o
CC block/linux-aio.o
CC block/null.o
CC block/mirror.o
CC block/commit.o
CC block/io.o
CC block/throttle-groups.o
CC block/nbd.o
CC block/nvme.o
CC block/nbd-client.o
CC block/sheepdog.o
CC block/accounting.o
CC block/dirty-bitmap.o
CC block/backup.o
CC block/write-threshold.o
CC block/replication.o
CC block/throttle.o
CC block/crypto.o
CC nbd/client.o
CC nbd/server.o
CC nbd/common.o
CC scsi/utils.o
CC scsi/pr-manager.o
CC scsi/pr-manager-helper.o
CC block/curl.o
CC block/dmg-bz2.o
CC crypto/init.o
CC crypto/hash.o
CC crypto/hash-nettle.o
CC crypto/hmac.o
CC crypto/hmac-nettle.o
CC crypto/aes.o
CC crypto/desrfb.o
CC crypto/cipher.o
CC crypto/tlscreds.o
CC crypto/tlscredsanon.o
CC crypto/tlssession.o
CC crypto/tlscredsx509.o
CC crypto/secret.o
CC crypto/random-gnutls.o
CC crypto/pbkdf.o
CC crypto/pbkdf-nettle.o
CC crypto/ivgen.o
CC crypto/ivgen-essiv.o
CC crypto/ivgen-plain.o
CC crypto/ivgen-plain64.o
CC crypto/afsplit.o
CC crypto/xts.o
CC crypto/block.o
CC crypto/block-qcow.o
CC crypto/block-luks.o
CC io/channel.o
CC io/channel-buffer.o
CC io/channel-command.o
CC io/channel-file.o
CC io/channel-tls.o
CC io/channel-socket.o
CC io/channel-watch.o
CC io/channel-util.o
CC io/channel-websock.o
CC io/net-listener.o
CC io/dns-resolver.o
CC io/task.o
CC qom/object.o
CC qom/container.o
CC qom/qom-qobject.o
CC qom/object_interfaces.o
GEN qemu-img-cmds.h
CC qemu-io.o
CC fsdev/virtfs-proxy-helper.o
CC fsdev/9p-marshal.o
CC fsdev/9p-iov-marshal.o
CC scsi/qemu-pr-helper.o
CC qemu-bridge-helper.o
CC blockdev-nbd.o
CC bootdevice.o
CC blockdev.o
CC iothread.o
CC qdev-monitor.o
CC device-hotplug.o
CC os-posix.o
CC bt-host.o
CC bt-vhci.o
CC dma-helpers.o
CC vl.o
CC tpm.o
CC device_tree.o
CC qmp-marshal.o
CC qmp.o
CC hmp.o
CC cpus-common.o
CC audio/audio.o
CC audio/noaudio.o
CC audio/wavaudio.o
CC audio/mixeng.o
CC audio/sdlaudio.o
CC audio/ossaudio.o
CC audio/wavcapture.o
CC backends/rng-random.o
CC backends/rng-egd.o
CC backends/rng.o
CC backends/tpm.o
CC backends/hostmem.o
CC backends/hostmem-ram.o
CC backends/hostmem-file.o
CC backends/cryptodev.o
CC backends/cryptodev-builtin.o
CC backends/hostmem-memfd.o
CC block/stream.o
CC chardev/msmouse.o
CC chardev/wctablet.o
CC chardev/testdev.o
CC disas/alpha.o
CC disas/arm.o
CXX disas/arm-a64.o
CC disas/cris.o
CC disas/hppa.o
CC disas/i386.o
CC disas/m68k.o
CC disas/microblaze.o
CC disas/mips.o
CC disas/nios2.o
CC disas/moxie.o
CC disas/ppc.o
CC disas/s390.o
CC disas/sh4.o
CC disas/sparc.o
CC disas/lm32.o
CC disas/xtensa.o
CXX disas/libvixl/vixl/utils.o
CXX disas/libvixl/vixl/compiler-intrinsics.o
CXX disas/libvixl/vixl/a64/instructions-a64.o
CXX disas/libvixl/vixl/a64/decoder-a64.o
CXX disas/libvixl/vixl/a64/disasm-a64.o
CC fsdev/qemu-fsdev.o
CC fsdev/qemu-fsdev-opts.o
CC fsdev/qemu-fsdev-throttle.o
CC fsdev/qemu-fsdev-dummy.o
CC hw/9pfs/9p.o
CC hw/9pfs/9p-util.o
CC hw/9pfs/9p-local.o
CC hw/9pfs/9p-xattr.o
CC hw/9pfs/9p-xattr-user.o
CC hw/9pfs/9p-posix-acl.o
CC hw/9pfs/coth.o
CC hw/9pfs/cofs.o
/var/tmp/patchew-tester-tmp-ebstrc6d/src/block/nbd-client.c: In function ‘nbd_client_co_get_block_status’:
/var/tmp/patchew-tester-tmp-ebstrc6d/src/block/nbd-client.c:922:61: error: ‘extent.flags’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
(extent.flags & NBD_STATE_ZERO ? BDRV_BLOCK_ZERO : 0);
^
CC hw/9pfs/codir.o
/var/tmp/patchew-tester-tmp-ebstrc6d/src/block/nbd-client.c:920:27: error: ‘extent.length’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
*pnum = extent.length >> BDRV_SECTOR_BITS;
^
CC hw/9pfs/cofile.o
CC hw/9pfs/coxattr.o
CC hw/9pfs/9p-synth.o
cc1: all warnings being treated as errors
make: *** [block/nbd-client.o] Error 1
make: *** Waiting for unfinished jobs....
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@freelists.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (9 preceding siblings ...)
2018-02-22 19:30 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation no-reply
@ 2018-02-23 14:02 ` no-reply
2018-02-24 6:48 ` no-reply
` (2 subsequent siblings)
13 siblings, 0 replies; 50+ messages in thread
From: no-reply @ 2018-02-23 14:02 UTC (permalink / raw)
To: vsementsov; +Cc: famz, qemu-devel, qemu-block, kwolf, mreitz, den, pbonzini
Hi,
This series failed build test on ppcle host. Please find the details below.
Subject: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
Type: series
Message-id: 1518702707-7077-1-git-send-email-vsementsov@virtuozzo.com
=== TEST SCRIPT BEGIN ===
#!/bin/bash
# Testing script will be invoked under the git checkout with
# HEAD pointing to a commit that has the patches applied on top of "base"
# branch
set -e
echo "=== ENV ==="
env
echo "=== PACKAGES ==="
rpm -qa
echo "=== TEST BEGIN ==="
INSTALL=$PWD/install
BUILD=$PWD/build
mkdir -p $BUILD $INSTALL
SRC=$PWD
cd $BUILD
$SRC/configure --prefix=$INSTALL
make -j100
# XXX: we need reliable clean up
# make check -j100 V=1
make install
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
From https://github.com/patchew-project/qemu
- [tag update] patchew/20180223125047.343-1-berto@igalia.com -> patchew/20180223125047.343-1-berto@igalia.com
Submodule 'capstone' (git://git.qemu.org/capstone.git) registered for path 'capstone'
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Submodule 'roms/QemuMacDrivers' (git://git.qemu.org/QemuMacDrivers.git) registered for path 'roms/QemuMacDrivers'
Submodule 'roms/SLOF' (git://git.qemu-project.org/SLOF.git) registered for path 'roms/SLOF'
Submodule 'roms/ipxe' (git://git.qemu-project.org/ipxe.git) registered for path 'roms/ipxe'
Submodule 'roms/openbios' (git://git.qemu-project.org/openbios.git) registered for path 'roms/openbios'
Submodule 'roms/openhackware' (git://git.qemu-project.org/openhackware.git) registered for path 'roms/openhackware'
Submodule 'roms/qemu-palcode' (git://github.com/rth7680/qemu-palcode.git) registered for path 'roms/qemu-palcode'
Submodule 'roms/seabios' (git://git.qemu-project.org/seabios.git/) registered for path 'roms/seabios'
Submodule 'roms/seabios-hppa' (git://github.com/hdeller/seabios-hppa.git) registered for path 'roms/seabios-hppa'
Submodule 'roms/sgabios' (git://git.qemu-project.org/sgabios.git) registered for path 'roms/sgabios'
Submodule 'roms/skiboot' (git://git.qemu.org/skiboot.git) registered for path 'roms/skiboot'
Submodule 'roms/u-boot' (git://git.qemu-project.org/u-boot.git) registered for path 'roms/u-boot'
Submodule 'roms/vgabios' (git://git.qemu-project.org/vgabios.git/) registered for path 'roms/vgabios'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into 'capstone'...
Submodule path 'capstone': checked out '22ead3e0bfdb87516656453336160e0a37b066bf'
Cloning into 'dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Cloning into 'roms/QemuMacDrivers'...
Submodule path 'roms/QemuMacDrivers': checked out 'd4e7d7ac663fcb55f1b93575445fcbca372f17a7'
Cloning into 'roms/SLOF'...
Submodule path 'roms/SLOF': checked out 'fa981320a1e0968d6fc1b8de319723ff8212b337'
Cloning into 'roms/ipxe'...
Submodule path 'roms/ipxe': checked out '0600d3ae94f93efd10fc6b3c7420a9557a3a1670'
Cloning into 'roms/openbios'...
Submodule path 'roms/openbios': checked out '54d959d97fb331708767b2fd4a878efd2bbc41bb'
Cloning into 'roms/openhackware'...
Submodule path 'roms/openhackware': checked out 'c559da7c8eec5e45ef1f67978827af6f0b9546f5'
Cloning into 'roms/qemu-palcode'...
Submodule path 'roms/qemu-palcode': checked out 'f3c7e44c70254975df2a00af39701eafbac4d471'
Cloning into 'roms/seabios'...
Submodule path 'roms/seabios': checked out '63451fca13c75870e1703eb3e20584d91179aebc'
Cloning into 'roms/seabios-hppa'...
Submodule path 'roms/seabios-hppa': checked out '649e6202b8d65d46c69f542b1380f840fbe8ab13'
Cloning into 'roms/sgabios'...
Submodule path 'roms/sgabios': checked out 'cbaee52287e5f32373181cff50a00b6c4ac9015a'
Cloning into 'roms/skiboot'...
Submodule path 'roms/skiboot': checked out 'e0ee24c27a172bcf482f6f2bc905e6211c134bcc'
Cloning into 'roms/u-boot'...
Submodule path 'roms/u-boot': checked out 'd85ca029f257b53a96da6c2fb421e78a003a9943'
Cloning into 'roms/vgabios'...
Submodule path 'roms/vgabios': checked out '19ea12c230ded95928ecaef0db47a82231c2e485'
Cloning into 'ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
Switched to a new branch 'test'
7d95dcd iotests: new test 206 for NBD BLOCK_STATUS
906b016 iotests: add file_path helper
015ee72 iotests.py: tiny refactor: move system imports up
1377201 nbd: BLOCK_STATUS for standard get_block_status function: client part
a750bdb nbd/client: fix error messages in nbd_handle_reply_err
6ec6604 block/nbd-client: save first fatal error in nbd_iter_error
1b609ef nbd: BLOCK_STATUS for standard get_block_status function: server part
ac6e460 nbd: change indenting in nbd.h
5e399e1 nbd/server: add nbd_opt_invalid helper
=== OUTPUT BEGIN ===
=== ENV ===
XDG_SESSION_ID=204371
SHELL=/bin/sh
USER=patchew
PATCHEW=/home/patchew/patchew/patchew-cli -s http://patchew.org --nodebug
PATH=/usr/bin:/bin
PWD=/var/tmp/patchew-tester-tmp-gpridv0o/src
LANG=en_US.UTF-8
HOME=/home/patchew
SHLVL=2
LOGNAME=patchew
XDG_RUNTIME_DIR=/run/user/1000
_=/usr/bin/env
=== PACKAGES ===
plymouth-core-libs-0.8.9-0.28.20140113.el7.centos.ppc64le
vim-common-7.4.160-2.el7.ppc64le
perl-Test-Simple-0.98-243.el7.noarch
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colord-libs-1.3.4-1.el7.ppc64le
kbd-legacy-1.15.5-13.el7.noarch
perl-CPAN-Meta-YAML-0.008-14.el7.noarch
libvirt-daemon-driver-nwfilter-3.2.0-14.el7.ppc64le
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tzdata-java-2017b-1.el7.noarch
perl-devel-5.16.3-292.el7.ppc64le
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perl-Log-Message-Simple-0.10-2.el7.noarch
totem-pl-parser-3.10.7-1.el7.ppc64le
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python-coverage-3.6-0.5.b3.el7.ppc64le
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mailcap-2.1.41-2.el7.noarch
perl-CPANPLUS-0.91.38-4.el7.noarch
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less-458-9.el7.ppc64le
gupnp-igd-0.2.4-1.el7.ppc64le
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python-di-0.3-2.el7.noarch
yelp-libs-3.22.0-1.el7.ppc64le
vte-profile-0.46.2-1.el7.ppc64le
gpm-libs-1.20.7-5.el7.ppc64le
gnome-clocks-3.22.1-1.el7.ppc64le
p11-kit-trust-0.23.5-3.el7.ppc64le
gssproxy-0.7.0-4.el7.ppc64le
gnu-free-mono-fonts-20120503-8.el7.noarch
python-dateutil-1.5-7.el7.noarch
gucharmap-libs-3.18.2-1.el7.ppc64le
glibc-common-2.17-196.el7.ppc64le
libreport-plugin-mantisbt-2.1.11-38.el7.centos.ppc64le
motif-devel-2.3.4-8.1.el7_3.ppc64le
celt051-0.5.1.3-8.el7.ppc64le
radvd-1.9.2-9.el7.ppc64le
lohit-tamil-fonts-2.5.3-2.el7.noarch
python-ipaddress-1.0.16-2.el7.noarch
anaconda-widgets-21.48.22.121-1.el7.centos.ppc64le
zlib-1.2.7-17.el7.ppc64le
system-config-printer-1.4.1-19.el7.ppc64le
mozjs24-24.2.0-7.el7.ppc64le
device-mapper-multipath-libs-0.4.9-111.el7.ppc64le
wqy-microhei-fonts-0.2.0-0.12.beta.el7.noarch
python-schedutils-0.4-6.el7.ppc64le
gnome-bluetooth-3.20.1-1.el7.ppc64le
nss-util-3.28.4-3.el7.ppc64le
dotconf-1.3-8.el7.ppc64le
ibus-rawcode-1.3.2-3.el7.ppc64le
abattis-cantarell-fonts-0.0.25-1.el7.noarch
sssd-common-1.15.2-50.el7.ppc64le
sil-padauk-fonts-2.8-5.el7.noarch
bind-utils-9.9.4-50.el7.ppc64le
sox-14.4.1-6.el7.ppc64le
libSM-1.2.2-2.el7.ppc64le
libtiff-devel-4.0.3-27.el7_3.ppc64le
plymouth-system-theme-0.8.9-0.28.20140113.el7.centos.ppc64le
python-libs-2.7.5-58.el7.ppc64le
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rfkill-0.4-9.el7.ppc64le
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libXtst-devel-1.2.3-1.el7.ppc64le
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ruby-2.0.0.648-30.el7.ppc64le
seahorse-3.20.0-1.el7.ppc64le
python-six-1.9.0-2.el7.noarch
gpgme-1.3.2-5.el7.ppc64le
iwl7260-firmware-22.0.7.0-56.el7.noarch
libsss_certmap-1.15.2-50.el7.ppc64le
xorg-x11-drv-wacom-0.34.2-2.el7.ppc64le
libXau-1.0.8-2.1.el7.ppc64le
shadow-utils-4.1.5.1-24.el7.ppc64le
evolution-ews-3.22.6-6.el7.ppc64le
libsecret-0.18.5-2.el7.ppc64le
perl-Module-Signature-0.73-2.el7.noarch
rootfiles-8.1-11.el7.noarch
trace-cmd-2.6.0-8.el7.ppc64le
hamcrest-1.3-6.el7.noarch
gawk-4.0.2-4.el7_3.1.ppc64le
usermode-1.111-5.el7.ppc64le
gnome-terminal-nautilus-3.22.1-2.el7.ppc64le
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iwl3945-firmware-15.32.2.9-56.el7.noarch
perl-Archive-Zip-1.30-11.el7.noarch
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gnome-color-manager-3.22.2-1.el7.ppc64le
imsettings-libs-1.6.3-9.el7.ppc64le
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python34-3.4.5-4.el7.ppc64le
perl-DBI-1.627-4.el7.ppc64le
plymouth-plugin-label-0.8.9-0.28.20140113.el7.centos.ppc64le
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perl-ExtUtils-CBuilder-0.28.2.6-292.el7.noarch
libsoup-devel-2.56.0-3.el7.ppc64le
perl-IO-Zlib-1.10-292.el7.noarch
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lohit-devanagari-fonts-2.5.3-4.el7.noarch
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pygpgme-0.3-9.el7.ppc64le
openssh-7.4p1-11.el7.ppc64le
cheese-3.22.1-1.el7.ppc64le
jline-1.0-8.el7.noarch
libcap-2.22-9.el7.ppc64le
ivtv-firmware-20080701-26.el7.noarch
perl-Pod-LaTeX-0.61-2.el7.noarch
enchant-1.6.0-8.el7.ppc64le
python2-ipalib-4.5.0-20.el7.centos.noarch
tog-pegasus-libs-2.14.1-5.el7.ppc64le
firstboot-19.12-1.el7.ppc64le
gupnp-dlna-0.10.5-1.el7.ppc64le
which-2.20-7.el7.ppc64le
epel-release-7-9.noarch
perl-Net-Daemon-0.48-5.el7.noarch
libcroco-0.6.11-1.el7.ppc64le
liboauth-devel-0.9.7-4.el7.ppc64le
libhangul-0.1.0-8.el7.ppc64le
eog-3.20.5-2.el7.ppc64le
plymouth-theme-charge-0.8.9-0.28.20140113.el7.centos.ppc64le
libcollection-0.6.2-27.el7.ppc64le
libgfortran-4.8.5-16.el7_4.1.ppc64le
perl-Locale-Codes-3.26-2.el7.noarch
pygobject2-2.28.6-11.el7.ppc64le
libXdamage-1.1.4-4.1.el7.ppc64le
libestr-0.1.9-2.el7.ppc64le
PackageKit-gtk3-module-1.1.5-1.el7.centos.ppc64le
libgweather-devel-3.20.4-1.el7.ppc64le
xz-5.2.2-1.el7.ppc64le
perl-WWW-RobotRules-6.02-5.el7.noarch
libICE-devel-1.0.9-9.el7.ppc64le
libXft-2.3.2-2.el7.ppc64le
cryptsetup-libs-1.7.4-3.el7.ppc64le
alsa-plugins-pulseaudio-1.1.1-1.el7.ppc64le
glx-utils-8.2.0-3.el7.ppc64le
speex-1.2-0.19.rc1.el7.ppc64le
perl-HTTP-Negotiate-6.01-5.el7.noarch
libtirpc-0.2.4-0.10.el7.ppc64le
pulseaudio-libs-glib2-10.0-3.el7.ppc64le
mesa-libgbm-17.0.1-6.20170307.el7.ppc64le
pulseaudio-libs-devel-10.0-3.el7.ppc64le
imsettings-1.6.3-9.el7.ppc64le
hunspell-en-US-0.20121024-6.el7.noarch
perl-IO-Socket-IP-0.21-4.el7.noarch
nss-util-devel-3.28.4-3.el7.ppc64le
libXxf86vm-1.1.4-1.el7.ppc64le
hwdata-0.252-8.6.el7.ppc64le
kernel-tools-3.10.0-693.el7.ppc64le
nepomuk-core-libs-4.10.5-5.el7.ppc64le
exiv2-libs-0.23-6.el7.ppc64le
perl-libwww-perl-6.05-2.el7.noarch
p11-kit-devel-0.23.5-3.el7.ppc64le
librsvg2-2.40.16-1.el7.ppc64le
libsmbclient-4.6.2-8.el7.ppc64le
abrt-console-notification-2.1.11-48.el7.centos.ppc64le
kdesdk-okteta-libs-4.10.5-6.el7.ppc64le
boost-chrono-1.53.0-27.el7.ppc64le
iw-4.3-1.el7.ppc64le
libcom_err-devel-1.42.9-10.el7.ppc64le
akonadi-1.9.2-4.el7.ppc64le
accountsservice-libs-0.6.45-2.el7.ppc64le
wvdial-1.61-9.el7.ppc64le
libkexiv2-devel-4.10.5-3.el7.ppc64le
libmpc-1.0.1-3.el7.ppc64le
lm_sensors-devel-3.4.0-4.20160601gitf9185e5.el7.ppc64le
meanwhile-1.1.0-12.el7.ppc64le
libXt-devel-1.1.5-3.el7.ppc64le
plymouth-scripts-0.8.9-0.28.20140113.el7.centos.ppc64le
mod_fcgid-2.3.9-4.el7.ppc64le
kdepim-runtime-libs-4.10.5-3.el7.ppc64le
mesa-libglapi-17.0.1-6.20170307.el7.ppc64le
hunspell-en-GB-0.20121024-6.el7.noarch
sip-4.14.6-4.el7.ppc64le
cairomm-1.12.0-1.el7.ppc64le
abrt-addon-xorg-2.1.11-48.el7.centos.ppc64le
ModemManager-1.6.0-2.el7.ppc64le
kdenetwork-krdc-devel-4.10.5-8.el7_0.ppc64le
libieee1284-0.2.11-15.el7.ppc64le
highlight-3.13-3.el7.ppc64le
pyOpenSSL-0.13.1-3.el7.ppc64le
gtk-update-icon-cache-3.22.10-4.el7.ppc64le
NetworkManager-1.8.0-9.el7.ppc64le
crda-3.13_2016.02.08-1.el7.ppc64le
kdesdk-kompare-libs-4.10.5-6.el7.ppc64le
newt-0.52.15-4.el7.ppc64le
xcb-util-0.4.0-2.el7.ppc64le
automake-1.13.4-3.el7.noarch
libgweather-3.20.4-1.el7.ppc64le
lockdev-1.0.4-0.13.20111007git.el7.ppc64le
man-db-2.6.3-9.el7.ppc64le
gd-2.0.35-26.el7.ppc64le
exempi-2.2.0-8.el7.ppc64le
curl-7.29.0-42.el7.ppc64le
snappy-1.1.0-3.el7.ppc64le
libreport-gtk-2.1.11-38.el7.centos.ppc64le
unbound-libs-1.4.20-34.el7.ppc64le
tcpdump-4.9.0-5.el7.ppc64le
sane-backends-drivers-scanners-1.0.24-9.el7.ppc64le
libedit-3.0-12.20121213cvs.el7.ppc64le
liboauth-0.9.7-4.el7.ppc64le
libmpcdec-1.2.6-12.el7.ppc64le
libnm-gtk-1.8.0-3.el7.ppc64le
grub2-tools-extra-2.02-0.64.el7.centos.ppc64le
libdmx-1.1.3-3.el7.ppc64le
wavpack-4.60.1-9.el7.ppc64le
rasqal-0.9.30-4.el7.ppc64le
autogen-libopts-5.18-5.el7.ppc64le
gnome-bluetooth-libs-3.20.1-1.el7.ppc64le
qt-settings-19-23.5.el7.centos.noarch
libxslt-devel-1.1.28-5.el7.ppc64le
grilo-plugins-0.3.4-1.el7.ppc64le
SDL-1.2.15-14.el7.ppc64le
sip-macros-4.14.6-4.el7.ppc64le
iptables-1.4.21-18.0.1.el7.centos.ppc64le
gstreamer-plugins-good-0.10.31-13.el7.ppc64le
qjson-0.8.1-4.el7.ppc64le
perl-Test-Pod-Coverage-1.08-21.el7.noarch
pcp-conf-3.11.8-7.el7.ppc64le
perl-podlators-2.5.1-3.el7.noarch
libcurl-devel-7.29.0-42.el7.ppc64le
graphite2-devel-1.3.6-1.el7_2.ppc64le
pygtk2-2.24.0-9.el7.ppc64le
kexec-tools-2.0.14-17.el7.ppc64le
iptables-devel-1.4.21-18.0.1.el7.centos.ppc64le
gnome-shell-3.22.3-17.el7.ppc64le
perl-Carp-1.26-244.el7.noarch
liblouis-2.5.2-10.el7.ppc64le
dvd+rw-tools-7.1-15.el7.ppc64le
ptlib-2.10.10-6.el7.ppc64le
samba-common-libs-4.6.2-8.el7.ppc64le
gvfs-devel-1.30.4-3.el7.ppc64le
gnome-shell-extension-launch-new-instance-3.22.2-10.el7.noarch
perl-libs-5.16.3-292.el7.ppc64le
libselinux-utils-2.5-11.el7.ppc64le
libsepol-devel-2.5-6.el7.ppc64le
festival-lib-1.96-28.el7.ppc64le
oddjob-0.31.5-4.el7.ppc64le
latencytop-tui-0.5-13.el7.ppc64le
libvirt-daemon-driver-storage-core-3.2.0-14.el7.ppc64le
perl-Data-Dumper-2.145-3.el7.ppc64le
libreport-python-2.1.11-38.el7.centos.ppc64le
libical-devel-1.0.1-1.el7.ppc64le
libmx-1.4.7-10.el7.ppc64le
cups-pk-helper-0.2.6-2.el7.ppc64le
=== TEST BEGIN ===
Install prefix /var/tmp/patchew-tester-tmp-gpridv0o/src/install
BIOS directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/share/qemu
firmware path /var/tmp/patchew-tester-tmp-gpridv0o/src/install/share/qemu-firmware
binary directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/bin
library directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/lib
module directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/lib/qemu
libexec directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/libexec
include directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/include
config directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/etc
local state directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/var
Manual directory /var/tmp/patchew-tester-tmp-gpridv0o/src/install/share/man
ELF interp prefix /usr/gnemul/qemu-%M
Source path /var/tmp/patchew-tester-tmp-gpridv0o/src
GIT binary git
GIT submodules ui/keycodemapdb dtc capstone
C compiler cc
Host C compiler cc
C++ compiler c++
Objective-C compiler cc
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/include/pixman-1 -I$(SRC_PATH)/dtc/libfdt -Werror -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -DNCURSES_WIDECHAR -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wendif-labels -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -Wno-missing-braces -I/usr/include/p11-kit-1 -I/usr/include/libpng15 -I$(SRC_PATH)/capstone/include
LDFLAGS -Wl,--warn-common -m64 -g
make make
install install
python python -B
smbd /usr/sbin/smbd
module support no
host CPU ppc64
host big endian no
target list aarch64-softmmu alpha-softmmu arm-softmmu cris-softmmu hppa-softmmu i386-softmmu lm32-softmmu m68k-softmmu microblazeel-softmmu microblaze-softmmu mips64el-softmmu mips64-softmmu mipsel-softmmu mips-softmmu moxie-softmmu nios2-softmmu or1k-softmmu ppc64-softmmu ppcemb-softmmu ppc-softmmu s390x-softmmu sh4eb-softmmu sh4-softmmu sparc64-softmmu sparc-softmmu tricore-softmmu unicore32-softmmu x86_64-softmmu xtensaeb-softmmu xtensa-softmmu aarch64_be-linux-user aarch64-linux-user alpha-linux-user armeb-linux-user arm-linux-user cris-linux-user hppa-linux-user i386-linux-user m68k-linux-user microblazeel-linux-user microblaze-linux-user mips64el-linux-user mips64-linux-user mipsel-linux-user mips-linux-user mipsn32el-linux-user mipsn32-linux-user nios2-linux-user or1k-linux-user ppc64abi32-linux-user ppc64le-linux-user ppc64-linux-user ppc-linux-user s390x-linux-user sh4eb-linux-user sh4-linux-user sparc32plus-linux-user sparc64-linux-user sparc-linux-user tilegx-linux-user x86_64-linux-user
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
SDL support yes (1.2.15)
GTK support yes (3.22.10)
GTK GL support no
VTE support no
TLS priority NORMAL
GNUTLS support yes
GNUTLS rnd yes
libgcrypt no
libgcrypt kdf no
nettle yes (2.7.1)
nettle kdf yes
libtasn1 yes
curses support yes
virgl support no
curl support yes
mingw32 support no
Audio drivers oss
Block whitelist (rw)
Block whitelist (ro)
VirtFS support yes
Multipath support no
VNC support yes
VNC SASL support yes
VNC JPEG support yes
VNC PNG support yes
xen support no
brlapi support no
bluez support no
Documentation no
PIE no
vde support no
netmap support no
Linux AIO support yes
ATTR/XATTR support yes
Install blobs yes
KVM support yes
HAX support no
HVF support no
WHPX support no
TCG support yes
TCG debug enabled no
TCG interpreter no
malloc trim support yes
RDMA support yes
fdt support yes
preadv support yes
fdatasync yes
madvise yes
posix_madvise yes
posix_memalign yes
libcap-ng support yes
vhost-net support yes
vhost-scsi support yes
vhost-vsock support yes
vhost-user support yes
Trace backends log
spice support no
rbd support no
xfsctl support no
smartcard support no
libusb yes
usb net redir no
OpenGL support no
OpenGL dmabufs no
libiscsi support no
libnfs support no
build guest agent yes
QGA VSS support no
QGA w32 disk info no
QGA MSI support no
seccomp support no
coroutine backend ucontext
coroutine pool yes
debug stack usage no
crypto afalg no
GlusterFS support no
gcov gcov
gcov enabled no
TPM support yes
libssh2 support no
TPM passthrough no
TPM emulator yes
QOM debugging yes
Live block migration yes
lzo support no
snappy support no
bzip2 support yes
NUMA host support yes
libxml2 yes
tcmalloc support no
jemalloc support no
avx2 optimization no
replication support yes
VxHS block device no
capstone git
WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0
GEN aarch64-softmmu/config-devices.mak.tmp
GEN alpha-softmmu/config-devices.mak.tmp
GEN arm-softmmu/config-devices.mak.tmp
GEN hppa-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak.tmp
GEN i386-softmmu/config-devices.mak.tmp
GEN m68k-softmmu/config-devices.mak.tmp
GEN lm32-softmmu/config-devices.mak.tmp
GEN microblazeel-softmmu/config-devices.mak.tmp
GEN microblaze-softmmu/config-devices.mak.tmp
GEN mips64el-softmmu/config-devices.mak.tmp
GEN mips64-softmmu/config-devices.mak.tmp
GEN cris-softmmu/config-devices.mak
GEN mipsel-softmmu/config-devices.mak.tmp
GEN mips-softmmu/config-devices.mak.tmp
GEN alpha-softmmu/config-devices.mak
GEN aarch64-softmmu/config-devices.mak
GEN lm32-softmmu/config-devices.mak
GEN microblaze-softmmu/config-devices.mak
GEN arm-softmmu/config-devices.mak
GEN hppa-softmmu/config-devices.mak
GEN microblazeel-softmmu/config-devices.mak
GEN nios2-softmmu/config-devices.mak.tmp
GEN moxie-softmmu/config-devices.mak.tmp
GEN i386-softmmu/config-devices.mak
GEN or1k-softmmu/config-devices.mak.tmp
GEN m68k-softmmu/config-devices.mak
GEN ppc64-softmmu/config-devices.mak.tmp
GEN ppc-softmmu/config-devices.mak.tmp
GEN ppcemb-softmmu/config-devices.mak.tmp
GEN s390x-softmmu/config-devices.mak.tmp
GEN sh4-softmmu/config-devices.mak.tmp
GEN sparc64-softmmu/config-devices.mak.tmp
GEN sh4eb-softmmu/config-devices.mak.tmp
GEN mipsel-softmmu/config-devices.mak
GEN mips64el-softmmu/config-devices.mak
GEN mips64-softmmu/config-devices.mak
GEN moxie-softmmu/config-devices.mak
GEN mips-softmmu/config-devices.mak
GEN nios2-softmmu/config-devices.mak
GEN sparc-softmmu/config-devices.mak.tmp
GEN unicore32-softmmu/config-devices.mak.tmp
GEN x86_64-softmmu/config-devices.mak.tmp
GEN tricore-softmmu/config-devices.mak.tmp
GEN xtensaeb-softmmu/config-devices.mak.tmp
GEN or1k-softmmu/config-devices.mak
GEN xtensa-softmmu/config-devices.mak.tmp
GEN aarch64_be-linux-user/config-devices.mak.tmp
GEN ppc-softmmu/config-devices.mak
GEN aarch64-linux-user/config-devices.mak.tmp
GEN armeb-linux-user/config-devices.mak.tmp
GEN s390x-softmmu/config-devices.mak
GEN alpha-linux-user/config-devices.mak.tmp
GEN i386-linux-user/config-devices.mak.tmp
GEN arm-linux-user/config-devices.mak.tmp
GEN m68k-linux-user/config-devices.mak.tmp
GEN cris-linux-user/config-devices.mak.tmp
GEN microblazeel-linux-user/config-devices.mak.tmp
GEN mips64el-linux-user/config-devices.mak.tmp
GEN microblaze-linux-user/config-devices.mak.tmp
GEN tricore-softmmu/config-devices.mak
GEN sparc-softmmu/config-devices.mak
GEN mips64-linux-user/config-devices.mak.tmp
GEN armeb-linux-user/config-devices.mak
GEN mipsel-linux-user/config-devices.mak.tmp
GEN hppa-linux-user/config-devices.mak.tmp
GEN sh4-softmmu/config-devices.mak
GEN mips-linux-user/config-devices.mak.tmp
GEN ppc64le-linux-user/config-devices.mak.tmp
GEN mipsn32-linux-user/config-devices.mak.tmp
GEN nios2-linux-user/config-devices.mak.tmp
GEN ppc64-linux-user/config-devices.mak.tmp
GEN or1k-linux-user/config-devices.mak.tmp
GEN mipsn32el-linux-user/config-devices.mak.tmp
GEN ppc64abi32-linux-user/config-devices.mak.tmp
GEN ppc-linux-user/config-devices.mak.tmp
GEN xtensa-softmmu/config-devices.mak
GEN ppcemb-softmmu/config-devices.mak
GEN ppc64-softmmu/config-devices.mak
GEN unicore32-softmmu/config-devices.mak
GEN aarch64_be-linux-user/config-devices.mak
GEN cris-linux-user/config-devices.mak
GEN m68k-linux-user/config-devices.mak
GEN microblaze-linux-user/config-devices.mak
GEN s390x-linux-user/config-devices.mak.tmp
GEN mips64el-linux-user/config-devices.mak
GEN aarch64-linux-user/config-devices.mak
GEN sh4eb-linux-user/config-devices.mak.tmp
GEN ppc64abi32-linux-user/config-devices.mak
GEN sh4-linux-user/config-devices.mak.tmp
GEN sh4eb-softmmu/config-devices.mak
GEN mipsn32-linux-user/config-devices.mak
GEN mipsel-linux-user/config-devices.mak
GEN ppc64-linux-user/config-devices.mak
GEN sparc32plus-linux-user/config-devices.mak.tmp
GEN sparc64-softmmu/config-devices.mak
GEN hppa-linux-user/config-devices.mak
GEN mipsn32el-linux-user/config-devices.mak
GEN alpha-linux-user/config-devices.mak
GEN s390x-linux-user/config-devices.mak
GEN mips64-linux-user/config-devices.mak
GEN ppc-linux-user/config-devices.mak
GEN sparc64-linux-user/config-devices.mak.tmp
GEN microblazeel-linux-user/config-devices.mak
GEN xtensaeb-softmmu/config-devices.mak
GEN i386-linux-user/config-devices.mak
GEN sparc32plus-linux-user/config-devices.mak
GEN nios2-linux-user/config-devices.mak
GEN arm-linux-user/config-devices.mak
GEN mips-linux-user/config-devices.mak
GEN x86_64-softmmu/config-devices.mak
GEN or1k-linux-user/config-devices.mak
GEN ppc64le-linux-user/config-devices.mak
GEN sh4eb-linux-user/config-devices.mak
GEN sh4-linux-user/config-devices.mak
GEN sparc64-linux-user/config-devices.mak
GEN sparc-linux-user/config-devices.mak.tmp
GEN tilegx-linux-user/config-devices.mak.tmp
GEN x86_64-linux-user/config-devices.mak.tmp
GEN config-host.h
GIT ui/keycodemapdb dtc capstone
GEN sparc-linux-user/config-devices.mak
GEN qemu-options.def
GEN tilegx-linux-user/config-devices.mak
GEN x86_64-linux-user/config-devices.mak
GEN qmp-commands.h
GEN qapi-types.h
GEN qapi-visit.h
GEN qapi-event.h
GEN qmp-marshal.c
GEN qapi-types.c
GEN qapi-visit.c
GEN qapi-event.c
GEN qmp-introspect.h
GEN qmp-introspect.c
GEN trace/generated-tcg-tracers.h
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN module_block.h
GEN trace/generated-helpers.c
GEN tests/test-qapi-types.h
GEN tests/test-qapi-visit.h
GEN tests/test-qmp-commands.h
GEN tests/test-qapi-event.h
GEN tests/test-qmp-introspect.h
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN chardev/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
GEN hw/net/trace.h
GEN hw/rdma/trace.h
GEN hw/rdma/vmw/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/misc/macio/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sparc64/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/pci-host/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/hppa/trace.h
GEN hw/xen/trace.h
GEN hw/ide/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN accel/tcg/trace.h
GEN accel/kvm/trace.h
GEN nbd/trace.h
GEN scsi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN chardev/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/rdma/trace.c
GEN hw/rdma/vmw/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/misc/macio/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sparc64/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/pci-host/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/hppa/trace.c
GEN hw/xen/trace.c
GEN hw/ide/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN accel/tcg/trace.c
GEN accel/kvm/trace.c
GEN nbd/trace.c
GEN scsi/trace.c
GEN config-all-devices.mak
mkdir -p dtc/libfdt
mkdir -p dtc/tests
GEN ui/input-keymap-atset1-to-qcode.c
GEN ui/input-keymap-linux-to-qcode.c
GEN ui/input-keymap-qcode-to-atset1.c
GEN ui/input-keymap-qcode-to-atset2.c
GEN ui/input-keymap-qcode-to-atset3.c
GEN ui/input-keymap-qcode-to-linux.c
GEN ui/input-keymap-qcode-to-qnum.c
GEN ui/input-keymap-qcode-to-sun.c
GEN ui/input-keymap-qnum-to-qcode.c
GEN ui/input-keymap-usb-to-qcode.c
GEN ui/input-keymap-win32-to-qcode.c
GEN ui/input-keymap-x11-to-qcode.c
GEN ui/input-keymap-xorgevdev-to-qcode.c
GEN ui/input-keymap-xorgkbd-to-qcode.c
GEN ui/input-keymap-xorgxquartz-to-qcode.c
GEN ui/input-keymap-xorgxwin-to-qcode.c
CC cs.o
CC utils.o
CC SStream.o
CC MCInstrDesc.o
CC MCRegisterInfo.o
CC arch/ARM/ARMDisassembler.o
CC arch/ARM/ARMInstPrinter.o
CC arch/AArch64/AArch64BaseInfo.o
CC arch/ARM/ARMModule.o
CC arch/ARM/ARMMapping.o
CC arch/AArch64/AArch64Disassembler.o
CC arch/AArch64/AArch64Mapping.o
CC arch/AArch64/AArch64InstPrinter.o
CC arch/AArch64/AArch64Module.o
CC arch/Mips/MipsDisassembler.o
CC arch/Mips/MipsInstPrinter.o
CC arch/Mips/MipsMapping.o
CC arch/PowerPC/PPCDisassembler.o
CC arch/Mips/MipsModule.o
CC arch/PowerPC/PPCInstPrinter.o
CC arch/PowerPC/PPCMapping.o
CC arch/PowerPC/PPCModule.o
CC arch/Sparc/SparcDisassembler.o
CC arch/Sparc/SparcInstPrinter.o
CC arch/Sparc/SparcMapping.o
CC arch/Sparc/SparcModule.o
CC arch/SystemZ/SystemZDisassembler.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/dumptrees.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/trees.S
CC arch/SystemZ/SystemZInstPrinter.o
CC arch/SystemZ/SystemZMapping.o
CC arch/SystemZ/SystemZMCTargetDesc.o
CC arch/X86/X86DisassemblerDecoder.o
CC arch/SystemZ/SystemZModule.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/testutils.c
CC arch/X86/X86Disassembler.o
CC arch/X86/X86IntelInstPrinter.o
CC arch/X86/X86ATTInstPrinter.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/value-labels.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/asm_tree_dump.c
CC arch/X86/X86Mapping.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/truncated_property.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/check_path.c
CC arch/X86/X86Module.o
CC arch/XCore/XCoreDisassembler.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/overlay_bad_fixup.c
CC arch/XCore/XCoreInstPrinter.o
CC arch/XCore/XCoreMapping.o
CC arch/XCore/XCoreModule.o
CC MCInst.o
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/overlay.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/subnode_iterate.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/property_iterate.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/integer-expressions.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/utilfdt_test.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/path_offset_aliases.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/add_subnode_with_nops.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/dtbs_equal_unordered.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/dtb_reverse.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/dtbs_equal_ordered.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/extra-terminating-null.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/incbin.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/boot-cpuid.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/phandle_format.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/path-references.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/references.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/string_escapes.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/propname_escapes.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/appendprop2.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/appendprop1.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/del_node.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/setprop.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/del_property.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/set_name.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/rw_tree1.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/open_pack.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/nopulate.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/mangle-layout.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/move_and_save.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/sw_tree1.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/nop_node.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/nop_property.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/setprop_inplace.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/stringlist.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/addr_size_cells.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/notfound.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/sized_cells.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/char_literal.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/get_alias.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/node_offset_by_compatible.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/node_check_compatible.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/node_offset_by_phandle.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/node_offset_by_prop_value.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/parent_offset.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/supernode_atdepth_offset.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/get_path.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/get_phandle.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/getprop.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/get_name.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/path_offset.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/subnode_offset.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/find_property.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/root_node.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_overlay.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/tests/get_mem_rsv.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_addresses.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_empty_tree.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_strerror.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_rw.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_sw.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_wip.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt_ro.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/libfdt/fdt.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/util.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/fdtput.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/fdtoverlay.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/fdtget.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/fdtdump.c
LEX convert-dtsv0-lexer.lex.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/srcpos.c
BISON dtc-parser.tab.c
LEX dtc-lexer.lex.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/treesource.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/livetree.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/fstree.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/flattree.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/dtc.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/data.c
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/checks.c
DEP convert-dtsv0-lexer.lex.c
DEP dtc-parser.tab.c
DEP dtc-lexer.lex.c
CHK version_gen.h
UPD version_gen.h
DEP /var/tmp/patchew-tester-tmp-gpridv0o/src/dtc/util.c
CC libfdt/fdt.o
CC libfdt/fdt_ro.o
CC libfdt/fdt_wip.o
CC libfdt/fdt_sw.o
CC libfdt/fdt_rw.o
CC libfdt/fdt_strerror.o
CC libfdt/fdt_empty_tree.o
CC libfdt/fdt_addresses.o
CC libfdt/fdt_overlay.o
AR libfdt/libfdt.a
ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
AR libcapstone.a
ar: creating /var/tmp/patchew-tester-tmp-gpridv0o/src/build/capstone/libcapstone.a
mkdir -p dtc/libfdt
mkdir -p dtc/tests
CC tests/qemu-iotests/socket_scm_helper.o
GEN qga/qapi-generated/qga-qapi-types.h
GEN qga/qapi-generated/qga-qapi-visit.h
GEN qga/qapi-generated/qga-qmp-commands.h
GEN qga/qapi-generated/qga-qapi-types.c
GEN qga/qapi-generated/qga-qapi-visit.c
GEN qga/qapi-generated/qga-qmp-marshal.c
CC qmp-introspect.o
CC qapi-event.o
CC qapi-types.o
CC qapi/qapi-visit-core.o
CC qapi-visit.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qmp-registry.o
CC qapi/qmp-dispatch.o
CC qapi/qobject-output-visitor.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qapi-util.o
CC qobject/qnull.o
CC qobject/qnum.o
CC qobject/qstring.o
CC qapi/qapi-clone-visitor.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qbool.o
CC qapi/qmp-event.o
CC qobject/qlit.o
CC qobject/qjson.o
CC qobject/qobject.o
CC qobject/json-lexer.o
CC qobject/json-streamer.o
CC qobject/json-parser.o
CC trace/qmp.o
CC trace/control.o
CC util/osdep.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/cutils.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/async.o
CC util/thread-pool.o
CC util/qemu-timer.o
CC util/iohandler.o
CC util/aio-posix.o
CC util/main-loop.o
CC util/compatfd.o
CC util/event_notifier-posix.o
CC util/mmap-alloc.o
CC util/oslib-posix.o
CC util/qemu-openpty.o
CC util/qemu-thread-posix.o
CC util/memfd.o
CC util/path.o
CC util/envlist.o
CC util/module.o
CC util/host-utils.o
CC util/fifo8.o
CC util/bitmap.o
CC util/hbitmap.o
CC util/bitops.o
CC util/acl.o
CC util/cacheinfo.o
CC util/error.o
CC util/qemu-error.o
CC util/id.o
CC util/iov.o
CC util/qemu-config.o
CC util/uri.o
CC util/qemu-sockets.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/hexdump.o
CC util/crc32c.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/readline.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-ucontext.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/pagesize.o
CC util/qht.o
CC util/qdist.o
CC util/range.o
CC util/stats64.o
CC util/systemd.o
CC util/vfio-helpers.o
CC trace-root.o
CC util/trace.o
CC crypto/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC chardev/trace.o
CC hw/block/trace.o
CC hw/block/dataplane/trace.o
CC hw/char/trace.o
CC hw/intc/trace.o
CC hw/net/trace.o
CC hw/rdma/trace.o
CC hw/rdma/vmw/trace.o
CC hw/virtio/trace.o
CC hw/misc/trace.o
CC hw/audio/trace.o
CC hw/misc/macio/trace.o
CC hw/usb/trace.o
CC hw/scsi/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/input/trace.o
CC hw/timer/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sparc64/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/ppc/trace.o
CC hw/9pfs/trace.o
CC hw/pci/trace.o
CC hw/pci-host/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/hppa/trace.o
CC hw/xen/trace.o
CC hw/ide/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/i386/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC linux-user/trace.o
CC qapi/trace.o
CC accel/tcg/trace.o
CC nbd/trace.o
CC accel/kvm/trace.o
CC scsi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-def.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/blk-commit-all.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/clock-warp.o
CC stubs/cpu-get-clock.o
CC stubs/cpu-get-icount.o
CC stubs/dump.o
CC stubs/error-printf.o
CC stubs/fdset.o
CC stubs/get-vm-name.o
CC stubs/gdbstub.o
CC stubs/iothread.o
CC stubs/iothread-lock.o
CC stubs/is-daemonized.o
CC stubs/linux-aio.o
CC stubs/machine-init-done.o
CC stubs/migr-blocker.o
CC stubs/change-state-handler.o
CC stubs/monitor.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/set-fd-handler.o
CC stubs/slirp.o
CC stubs/tpm.o
CC stubs/sysbus.o
CC stubs/trace-control.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/qmp_pc_dimm.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/vmgenid.o
CC stubs/xen-common.o
CC stubs/xen-hvm.o
CC stubs/pci-host-piix.o
CC stubs/ram-block.o
CC contrib/ivshmem-client/ivshmem-client.o
CC contrib/ivshmem-client/main.o
CC contrib/ivshmem-server/ivshmem-server.o
CC block.o
CC blockjob.o
CC contrib/ivshmem-server/main.o
CC qemu-nbd.o
CC replication.o
CC block/raw-format.o
CC qemu-io-cmds.o
CC block/qcow.o
CC block/vdi.o
CC block/vmdk.o
CC block/bochs.o
CC block/cloop.o
CC block/vpc.o
CC block/vvfat.o
CC block/dmg.o
CC block/qcow2.o
CC block/qcow2-refcount.o
CC block/qcow2-cluster.o
CC block/qcow2-snapshot.o
CC block/qcow2-cache.o
CC block/qcow2-bitmap.o
CC block/qed-l2-cache.o
CC block/qed-table.o
CC block/qed-cluster.o
CC block/qed.o
CC block/qed-check.o
CC block/vhdx.o
CC block/vhdx-endian.o
CC block/vhdx-log.o
CC block/quorum.o
CC block/parallels.o
CC block/blkdebug.o
CC block/blkverify.o
CC block/blkreplay.o
CC block/block-backend.o
CC block/snapshot.o
CC block/qapi.o
CC block/linux-aio.o
CC block/file-posix.o
CC block/null.o
CC block/mirror.o
CC block/commit.o
CC block/io.o
CC block/throttle-groups.o
CC block/nvme.o
CC block/nbd.o
CC block/nbd-client.o
CC block/sheepdog.o
CC block/accounting.o
CC block/dirty-bitmap.o
CC block/write-threshold.o
CC block/backup.o
CC block/replication.o
CC block/throttle.o
CC block/crypto.o
CC nbd/server.o
CC nbd/client.o
CC nbd/common.o
CC scsi/utils.o
CC scsi/pr-manager.o
CC scsi/pr-manager-helper.o
CC block/curl.o
CC block/dmg-bz2.o
CC crypto/init.o
CC crypto/hash.o
CC crypto/hash-nettle.o
CC crypto/hmac.o
CC crypto/hmac-nettle.o
CC crypto/aes.o
CC crypto/desrfb.o
CC crypto/cipher.o
CC crypto/tlscreds.o
CC crypto/tlscredsanon.o
CC crypto/tlscredsx509.o
CC crypto/tlssession.o
CC crypto/secret.o
CC crypto/random-gnutls.o
CC crypto/pbkdf.o
CC crypto/pbkdf-nettle.o
CC crypto/ivgen.o
CC crypto/ivgen-essiv.o
CC crypto/ivgen-plain.o
CC crypto/afsplit.o
CC crypto/ivgen-plain64.o
CC crypto/xts.o
CC crypto/block.o
CC crypto/block-qcow.o
CC crypto/block-luks.o
CC io/channel.o
CC io/channel-buffer.o
CC io/channel-command.o
CC io/channel-file.o
CC io/channel-socket.o
CC io/channel-tls.o
CC io/channel-watch.o
CC io/channel-websock.o
CC io/channel-util.o
CC io/dns-resolver.o
CC io/net-listener.o
CC io/task.o
CC qom/object.o
CC qom/container.o
CC qom/qom-qobject.o
CC qom/object_interfaces.o
GEN qemu-img-cmds.h
CC qemu-io.o
CC fsdev/virtfs-proxy-helper.o
CC fsdev/9p-marshal.o
CC fsdev/9p-iov-marshal.o
CC scsi/qemu-pr-helper.o
CC qemu-bridge-helper.o
CC blockdev.o
CC blockdev-nbd.o
CC bootdevice.o
CC iothread.o
CC qdev-monitor.o
CC device-hotplug.o
CC os-posix.o
CC bt-host.o
CC bt-vhci.o
CC dma-helpers.o
CC vl.o
CC tpm.o
CC device_tree.o
CC qmp-marshal.o
CC qmp.o
CC hmp.o
CC cpus-common.o
CC audio/audio.o
CC audio/noaudio.o
CC audio/wavaudio.o
CC audio/mixeng.o
CC audio/sdlaudio.o
CC audio/ossaudio.o
CC audio/wavcapture.o
CC backends/rng.o
CC backends/rng-egd.o
CC backends/rng-random.o
CC backends/tpm.o
CC backends/hostmem.o
CC backends/hostmem-ram.o
CC backends/hostmem-file.o
CC backends/cryptodev.o
CC backends/cryptodev-builtin.o
CC backends/hostmem-memfd.o
CC block/stream.o
CC chardev/msmouse.o
CC chardev/wctablet.o
CC chardev/testdev.o
CC disas/arm.o
CC disas/alpha.o
CXX disas/arm-a64.o
CC disas/cris.o
CC disas/hppa.o
CC disas/i386.o
CC disas/m68k.o
CC disas/microblaze.o
CC disas/mips.o
CC disas/nios2.o
CC disas/moxie.o
/var/tmp/patchew-tester-tmp-gpridv0o/src/block/nbd-client.c: In function ‘nbd_client_co_get_block_status’:
/var/tmp/patchew-tester-tmp-gpridv0o/src/block/nbd-client.c:922:61: error: ‘*((void *)&extent+4)’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
(extent.flags & NBD_STATE_ZERO ? BDRV_BLOCK_ZERO : 0);
^
/var/tmp/patchew-tester-tmp-gpridv0o/src/block/nbd-client.c:920:27: error: ‘extent’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
*pnum = extent.length >> BDRV_SECTOR_BITS;
^
CC disas/ppc.o
CC disas/s390.o
CC disas/sh4.o
CC disas/sparc.o
cc1: all warnings being treated as errors
CC disas/lm32.o
make: *** [block/nbd-client.o] Error 1
make: *** Waiting for unfinished jobs....
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@freelists.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (10 preceding siblings ...)
2018-02-23 14:02 ` no-reply
@ 2018-02-24 6:48 ` no-reply
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches Eric Blake
2018-03-09 19:08 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Eric Blake
13 siblings, 0 replies; 50+ messages in thread
From: no-reply @ 2018-02-24 6:48 UTC (permalink / raw)
To: vsementsov; +Cc: famz, qemu-devel, qemu-block, kwolf, mreitz, den, pbonzini
Hi,
This series failed docker-mingw@fedora build test. Please find the testing commands and
their output below. If you have Docker installed, you can probably reproduce it
locally.
Type: series
Message-id: 1518702707-7077-1-git-send-email-vsementsov@virtuozzo.com
Subject: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
=== TEST SCRIPT BEGIN ===
#!/bin/bash
set -e
git submodule update --init dtc
# Let docker tests dump environment info
export SHOW_ENV=1
export J=8
time make docker-test-mingw@fedora
=== TEST SCRIPT END ===
Updating 3c8cf5a9c21ff8782164d1def7f44bd888713384
Switched to a new branch 'test'
7d95dcdd92 iotests: new test 206 for NBD BLOCK_STATUS
906b0164c4 iotests: add file_path helper
015ee723d2 iotests.py: tiny refactor: move system imports up
1377201bee nbd: BLOCK_STATUS for standard get_block_status function: client part
a750bdb375 nbd/client: fix error messages in nbd_handle_reply_err
6ec660434e block/nbd-client: save first fatal error in nbd_iter_error
1b609ef226 nbd: BLOCK_STATUS for standard get_block_status function: server part
ac6e460a1f nbd: change indenting in nbd.h
5e399e16f0 nbd/server: add nbd_opt_invalid helper
=== OUTPUT BEGIN ===
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-ffe51cdm/src/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
BUILD fedora
make[1]: Entering directory '/var/tmp/patchew-tester-tmp-ffe51cdm/src'
GEN /var/tmp/patchew-tester-tmp-ffe51cdm/src/docker-src.2018-02-24-01.47.30.11028/qemu.tar
Cloning into '/var/tmp/patchew-tester-tmp-ffe51cdm/src/docker-src.2018-02-24-01.47.30.11028/qemu.tar.vroot'...
done.
Your branch is up-to-date with 'origin/test'.
Submodule 'dtc' (git://git.qemu-project.org/dtc.git) registered for path 'dtc'
Cloning into '/var/tmp/patchew-tester-tmp-ffe51cdm/src/docker-src.2018-02-24-01.47.30.11028/qemu.tar.vroot/dtc'...
Submodule path 'dtc': checked out 'e54388015af1fb4bf04d0bca99caba1074d9cc42'
Submodule 'ui/keycodemapdb' (git://git.qemu.org/keycodemapdb.git) registered for path 'ui/keycodemapdb'
Cloning into '/var/tmp/patchew-tester-tmp-ffe51cdm/src/docker-src.2018-02-24-01.47.30.11028/qemu.tar.vroot/ui/keycodemapdb'...
Submodule path 'ui/keycodemapdb': checked out '6b3d716e2b6472eb7189d3220552280ef3d832ce'
COPY RUNNER
RUN test-mingw in qemu:fedora
Packages installed:
PyYAML-3.12-5.fc27.x86_64
SDL-devel-1.2.15-29.fc27.x86_64
bc-1.07.1-3.fc27.x86_64
bison-3.0.4-8.fc27.x86_64
bzip2-1.0.6-24.fc27.x86_64
ccache-3.3.5-1.fc27.x86_64
clang-5.0.1-1.fc27.x86_64
findutils-4.6.0-14.fc27.x86_64
flex-2.6.1-5.fc27.x86_64
gcc-7.3.1-2.fc27.x86_64
gcc-c++-7.3.1-2.fc27.x86_64
gettext-0.19.8.1-12.fc27.x86_64
git-2.14.3-2.fc27.x86_64
glib2-devel-2.54.3-2.fc27.x86_64
hostname-3.18-4.fc27.x86_64
libaio-devel-0.3.110-9.fc27.x86_64
libasan-7.3.1-2.fc27.x86_64
libfdt-devel-1.4.6-1.fc27.x86_64
libubsan-7.3.1-2.fc27.x86_64
make-4.2.1-4.fc27.x86_64
mingw32-SDL-1.2.15-9.fc27.noarch
mingw32-bzip2-1.0.6-9.fc27.noarch
mingw32-curl-7.54.1-2.fc27.noarch
mingw32-glib2-2.54.1-1.fc27.noarch
mingw32-gmp-6.1.2-2.fc27.noarch
mingw32-gnutls-3.5.13-2.fc27.noarch
mingw32-gtk2-2.24.31-4.fc27.noarch
mingw32-gtk3-3.22.16-1.fc27.noarch
mingw32-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw32-libpng-1.6.29-2.fc27.noarch
mingw32-libssh2-1.8.0-3.fc27.noarch
mingw32-libtasn1-4.13-1.fc27.noarch
mingw32-nettle-3.3-3.fc27.noarch
mingw32-pixman-0.34.0-3.fc27.noarch
mingw32-pkg-config-0.28-9.fc27.x86_64
mingw64-SDL-1.2.15-9.fc27.noarch
mingw64-bzip2-1.0.6-9.fc27.noarch
mingw64-curl-7.54.1-2.fc27.noarch
mingw64-glib2-2.54.1-1.fc27.noarch
mingw64-gmp-6.1.2-2.fc27.noarch
mingw64-gnutls-3.5.13-2.fc27.noarch
mingw64-gtk2-2.24.31-4.fc27.noarch
mingw64-gtk3-3.22.16-1.fc27.noarch
mingw64-libjpeg-turbo-1.5.1-3.fc27.noarch
mingw64-libpng-1.6.29-2.fc27.noarch
mingw64-libssh2-1.8.0-3.fc27.noarch
mingw64-libtasn1-4.13-1.fc27.noarch
mingw64-nettle-3.3-3.fc27.noarch
mingw64-pixman-0.34.0-3.fc27.noarch
mingw64-pkg-config-0.28-9.fc27.x86_64
nettle-devel-3.4-1.fc27.x86_64
perl-5.26.1-402.fc27.x86_64
pixman-devel-0.34.0-4.fc27.x86_64
python3-3.6.2-13.fc27.x86_64
sparse-0.5.1-2.fc27.x86_64
tar-1.29-7.fc27.x86_64
which-2.21-4.fc27.x86_64
zlib-devel-1.2.11-4.fc27.x86_64
Environment variables:
TARGET_LIST=
PACKAGES=ccache gettext git tar PyYAML sparse flex bison python3 bzip2 hostname glib2-devel pixman-devel zlib-devel SDL-devel libfdt-devel gcc gcc-c++ clang make perl which bc findutils libaio-devel nettle-devel libasan libubsan mingw32-pixman mingw32-glib2 mingw32-gmp mingw32-SDL mingw32-pkg-config mingw32-gtk2 mingw32-gtk3 mingw32-gnutls mingw32-nettle mingw32-libtasn1 mingw32-libjpeg-turbo mingw32-libpng mingw32-curl mingw32-libssh2 mingw32-bzip2 mingw64-pixman mingw64-glib2 mingw64-gmp mingw64-SDL mingw64-pkg-config mingw64-gtk2 mingw64-gtk3 mingw64-gnutls mingw64-nettle mingw64-libtasn1 mingw64-libjpeg-turbo mingw64-libpng mingw64-curl mingw64-libssh2 mingw64-bzip2
J=8
V=
HOSTNAME=f9ae97814ec1
DEBUG=
SHOW_ENV=1
PWD=/
HOME=/root
CCACHE_DIR=/var/tmp/ccache
DISTTAG=f27container
QEMU_CONFIGURE_OPTS=--python=/usr/bin/python3
FGC=f27
TEST_DIR=/tmp/qemu-test
SHLVL=1
FEATURES=mingw clang pyyaml asan dtc
PATH=/usr/lib/ccache:/usr/lib64/ccache:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
MAKEFLAGS= -j8
EXTRA_CONFIGURE_OPTS=
_=/usr/bin/env
Configure options:
--enable-werror --target-list=x86_64-softmmu,aarch64-softmmu --prefix=/tmp/qemu-test/install --python=/usr/bin/python3 --cross-prefix=x86_64-w64-mingw32- --enable-trace-backends=simple --enable-gnutls --enable-nettle --enable-curl --enable-vnc --enable-bzip2 --enable-guest-agent --with-sdlabi=1.2 --with-gtkabi=2.0
Install prefix /tmp/qemu-test/install
BIOS directory /tmp/qemu-test/install
firmware path /tmp/qemu-test/install/share/qemu-firmware
binary directory /tmp/qemu-test/install
library directory /tmp/qemu-test/install/lib
module directory /tmp/qemu-test/install/lib
libexec directory /tmp/qemu-test/install/libexec
include directory /tmp/qemu-test/install/include
config directory /tmp/qemu-test/install
local state directory queried at runtime
Windows SDK no
Source path /tmp/qemu-test/src
GIT binary git
GIT submodules
C compiler x86_64-w64-mingw32-gcc
Host C compiler cc
C++ compiler x86_64-w64-mingw32-g++
Objective-C compiler clang
ARFLAGS rv
CFLAGS -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -g
QEMU_CFLAGS -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/pixman-1 -I$(SRC_PATH)/dtc/libfdt -Werror -DHAS_LIBSSH2_SFTP_FSYNC -mms-bitfields -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/glib-2.0 -I/usr/x86_64-w64-mingw32/sys-root/mingw/lib/glib-2.0/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -m64 -mcx16 -mthreads -D__USE_MINGW_ANSI_STDIO=1 -DWIN32_LEAN_AND_MEAN -DWINVER=0x501 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wexpansion-to-defined -Wendif-labels -Wno-shift-negative-value -Wno-missing-include-dirs -Wempty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits -fstack-protector-strong -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/p11-kit-1 -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include -I/usr/x86_64-w64-mingw32/sys-root/mingw/include/libpng16
LDFLAGS -Wl,--nxcompat -Wl,--no-seh -Wl,--dynamicbase -Wl,--warn-common -m64 -g
make make
install install
python /usr/bin/python3 -B
smbd /usr/sbin/smbd
module support no
host CPU x86_64
host big endian no
target list x86_64-softmmu aarch64-softmmu
gprof enabled no
sparse enabled no
strip binaries yes
profiler no
static build no
SDL support yes (1.2.15)
GTK support yes (2.24.31)
GTK GL support no
VTE support no
TLS priority NORMAL
GNUTLS support yes
GNUTLS rnd yes
libgcrypt no
libgcrypt kdf no
nettle yes (3.3)
nettle kdf yes
libtasn1 yes
curses support no
virgl support no
curl support yes
mingw32 support yes
Audio drivers dsound
Block whitelist (rw)
Block whitelist (ro)
VirtFS support no
Multipath support no
VNC support yes
VNC SASL support no
VNC JPEG support yes
VNC PNG support yes
xen support no
brlapi support no
bluez support no
Documentation no
PIE no
vde support no
netmap support no
Linux AIO support no
ATTR/XATTR support no
Install blobs yes
KVM support no
HAX support yes
HVF support no
WHPX support no
TCG support yes
TCG debug enabled no
TCG interpreter no
malloc trim support no
RDMA support no
fdt support yes
preadv support no
fdatasync no
madvise no
posix_madvise no
posix_memalign no
libcap-ng support no
vhost-net support no
vhost-scsi support no
vhost-vsock support no
vhost-user support no
Trace backends simple
Trace output file trace-<pid>
spice support no
rbd support no
xfsctl support no
smartcard support no
libusb no
usb net redir no
OpenGL support no
OpenGL dmabufs no
libiscsi support no
libnfs support no
build guest agent yes
QGA VSS support no
QGA w32 disk info yes
QGA MSI support no
seccomp support no
coroutine backend win32
coroutine pool yes
debug stack usage no
crypto afalg no
GlusterFS support no
gcov gcov
gcov enabled no
TPM support yes
libssh2 support yes
TPM passthrough no
TPM emulator no
QOM debugging yes
Live block migration yes
lzo support no
snappy support no
bzip2 support yes
NUMA host support no
libxml2 no
tcmalloc support no
jemalloc support no
avx2 optimization yes
replication support yes
VxHS block device no
capstone no
WARNING: Use of GTK 2.0 is deprecated and will be removed in
WARNING: future releases. Please switch to using GTK 3.0
WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0
mkdir -p dtc/libfdt
mkdir -p dtc/tests
GEN config-host.h
GEN qapi-types.h
GEN qemu-options.def
GEN qmp-commands.h
GEN aarch64-softmmu/config-devices.mak.tmp
GEN x86_64-softmmu/config-devices.mak.tmp
GEN qapi-visit.h
GEN qapi-event.h
GEN x86_64-softmmu/config-devices.mak
GEN aarch64-softmmu/config-devices.mak
GEN qmp-marshal.c
GEN qapi-visit.c
GEN qapi-types.c
GEN qapi-event.c
GEN qmp-introspect.h
GEN qmp-introspect.c
GEN trace/generated-tcg-tracers.h
GEN trace/generated-helpers-wrappers.h
GEN trace/generated-helpers.h
GEN trace/generated-helpers.c
GEN module_block.h
GEN ui/input-keymap-atset1-to-qcode.c
GEN ui/input-keymap-linux-to-qcode.c
GEN ui/input-keymap-qcode-to-atset1.c
GEN ui/input-keymap-qcode-to-atset2.c
GEN ui/input-keymap-qcode-to-atset3.c
GEN ui/input-keymap-qcode-to-linux.c
GEN ui/input-keymap-qcode-to-qnum.c
GEN ui/input-keymap-qcode-to-sun.c
GEN ui/input-keymap-qnum-to-qcode.c
GEN ui/input-keymap-usb-to-qcode.c
GEN ui/input-keymap-win32-to-qcode.c
GEN ui/input-keymap-x11-to-qcode.c
GEN ui/input-keymap-xorgevdev-to-qcode.c
GEN ui/input-keymap-xorgkbd-to-qcode.c
GEN ui/input-keymap-xorgxquartz-to-qcode.c
GEN ui/input-keymap-xorgxwin-to-qcode.c
GEN tests/test-qapi-types.h
GEN tests/test-qapi-visit.h
GEN tests/test-qmp-commands.h
GEN tests/test-qapi-event.h
GEN tests/test-qmp-introspect.h
GEN trace-root.h
GEN util/trace.h
GEN crypto/trace.h
GEN io/trace.h
GEN migration/trace.h
GEN block/trace.h
GEN chardev/trace.h
GEN hw/block/trace.h
GEN hw/block/dataplane/trace.h
GEN hw/char/trace.h
GEN hw/intc/trace.h
GEN hw/net/trace.h
GEN hw/rdma/trace.h
GEN hw/rdma/vmw/trace.h
GEN hw/virtio/trace.h
GEN hw/audio/trace.h
GEN hw/misc/trace.h
GEN hw/misc/macio/trace.h
GEN hw/usb/trace.h
GEN hw/scsi/trace.h
GEN hw/nvram/trace.h
GEN hw/display/trace.h
GEN hw/input/trace.h
GEN hw/timer/trace.h
GEN hw/dma/trace.h
GEN hw/sparc/trace.h
GEN hw/sparc64/trace.h
GEN hw/sd/trace.h
GEN hw/isa/trace.h
GEN hw/mem/trace.h
GEN hw/i386/trace.h
GEN hw/i386/xen/trace.h
GEN hw/9pfs/trace.h
GEN hw/ppc/trace.h
GEN hw/pci/trace.h
GEN hw/pci-host/trace.h
GEN hw/s390x/trace.h
GEN hw/vfio/trace.h
GEN hw/acpi/trace.h
GEN hw/arm/trace.h
GEN hw/alpha/trace.h
GEN hw/hppa/trace.h
GEN hw/xen/trace.h
GEN hw/ide/trace.h
GEN ui/trace.h
GEN audio/trace.h
GEN net/trace.h
GEN target/arm/trace.h
GEN target/i386/trace.h
GEN target/mips/trace.h
GEN target/sparc/trace.h
GEN target/s390x/trace.h
GEN target/ppc/trace.h
GEN qom/trace.h
GEN linux-user/trace.h
GEN qapi/trace.h
GEN accel/tcg/trace.h
GEN accel/kvm/trace.h
GEN nbd/trace.h
GEN scsi/trace.h
GEN trace-root.c
GEN util/trace.c
GEN crypto/trace.c
GEN io/trace.c
GEN migration/trace.c
GEN block/trace.c
GEN chardev/trace.c
GEN hw/block/trace.c
GEN hw/block/dataplane/trace.c
GEN hw/char/trace.c
GEN hw/intc/trace.c
GEN hw/net/trace.c
GEN hw/rdma/trace.c
GEN hw/rdma/vmw/trace.c
GEN hw/virtio/trace.c
GEN hw/audio/trace.c
GEN hw/misc/trace.c
GEN hw/misc/macio/trace.c
GEN hw/usb/trace.c
GEN hw/scsi/trace.c
GEN hw/nvram/trace.c
GEN hw/display/trace.c
GEN hw/input/trace.c
GEN hw/timer/trace.c
GEN hw/dma/trace.c
GEN hw/sparc/trace.c
GEN hw/sparc64/trace.c
GEN hw/sd/trace.c
GEN hw/isa/trace.c
GEN hw/mem/trace.c
GEN hw/i386/trace.c
GEN hw/i386/xen/trace.c
GEN hw/9pfs/trace.c
GEN hw/ppc/trace.c
GEN hw/pci/trace.c
GEN hw/pci-host/trace.c
GEN hw/s390x/trace.c
GEN hw/vfio/trace.c
GEN hw/acpi/trace.c
GEN hw/arm/trace.c
GEN hw/alpha/trace.c
GEN hw/hppa/trace.c
GEN hw/xen/trace.c
GEN hw/ide/trace.c
GEN ui/trace.c
GEN audio/trace.c
GEN net/trace.c
GEN target/arm/trace.c
GEN target/i386/trace.c
GEN target/mips/trace.c
GEN target/sparc/trace.c
GEN target/s390x/trace.c
GEN target/ppc/trace.c
GEN qom/trace.c
GEN linux-user/trace.c
GEN qapi/trace.c
GEN accel/tcg/trace.c
GEN accel/kvm/trace.c
GEN nbd/trace.c
GEN scsi/trace.c
GEN config-all-devices.mak
DEP /tmp/qemu-test/src/dtc/tests/dumptrees.c
DEP /tmp/qemu-test/src/dtc/tests/trees.S
DEP /tmp/qemu-test/src/dtc/tests/testutils.c
DEP /tmp/qemu-test/src/dtc/tests/value-labels.c
DEP /tmp/qemu-test/src/dtc/tests/asm_tree_dump.c
DEP /tmp/qemu-test/src/dtc/tests/truncated_property.c
DEP /tmp/qemu-test/src/dtc/tests/check_path.c
DEP /tmp/qemu-test/src/dtc/tests/overlay_bad_fixup.c
DEP /tmp/qemu-test/src/dtc/tests/overlay.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/property_iterate.c
DEP /tmp/qemu-test/src/dtc/tests/integer-expressions.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset_aliases.c
DEP /tmp/qemu-test/src/dtc/tests/utilfdt_test.c
DEP /tmp/qemu-test/src/dtc/tests/add_subnode_with_nops.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_unordered.c
DEP /tmp/qemu-test/src/dtc/tests/dtb_reverse.c
DEP /tmp/qemu-test/src/dtc/tests/extra-terminating-null.c
DEP /tmp/qemu-test/src/dtc/tests/dtbs_equal_ordered.c
DEP /tmp/qemu-test/src/dtc/tests/incbin.c
DEP /tmp/qemu-test/src/dtc/tests/boot-cpuid.c
DEP /tmp/qemu-test/src/dtc/tests/phandle_format.c
DEP /tmp/qemu-test/src/dtc/tests/path-references.c
DEP /tmp/qemu-test/src/dtc/tests/references.c
DEP /tmp/qemu-test/src/dtc/tests/string_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/propname_escapes.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop2.c
DEP /tmp/qemu-test/src/dtc/tests/appendprop1.c
DEP /tmp/qemu-test/src/dtc/tests/del_node.c
DEP /tmp/qemu-test/src/dtc/tests/del_property.c
DEP /tmp/qemu-test/src/dtc/tests/setprop.c
DEP /tmp/qemu-test/src/dtc/tests/set_name.c
DEP /tmp/qemu-test/src/dtc/tests/rw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/open_pack.c
DEP /tmp/qemu-test/src/dtc/tests/nopulate.c
DEP /tmp/qemu-test/src/dtc/tests/mangle-layout.c
DEP /tmp/qemu-test/src/dtc/tests/move_and_save.c
DEP /tmp/qemu-test/src/dtc/tests/sw_tree1.c
DEP /tmp/qemu-test/src/dtc/tests/nop_property.c
DEP /tmp/qemu-test/src/dtc/tests/nop_node.c
DEP /tmp/qemu-test/src/dtc/tests/setprop_inplace.c
DEP /tmp/qemu-test/src/dtc/tests/stringlist.c
DEP /tmp/qemu-test/src/dtc/tests/addr_size_cells.c
DEP /tmp/qemu-test/src/dtc/tests/notfound.c
DEP /tmp/qemu-test/src/dtc/tests/sized_cells.c
DEP /tmp/qemu-test/src/dtc/tests/char_literal.c
DEP /tmp/qemu-test/src/dtc/tests/get_alias.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_check_compatible.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/node_offset_by_prop_value.c
DEP /tmp/qemu-test/src/dtc/tests/parent_offset.c
DEP /tmp/qemu-test/src/dtc/tests/supernode_atdepth_offset.c
DEP /tmp/qemu-test/src/dtc/tests/get_path.c
DEP /tmp/qemu-test/src/dtc/tests/get_phandle.c
DEP /tmp/qemu-test/src/dtc/tests/getprop.c
DEP /tmp/qemu-test/src/dtc/tests/get_name.c
DEP /tmp/qemu-test/src/dtc/tests/path_offset.c
DEP /tmp/qemu-test/src/dtc/tests/find_property.c
DEP /tmp/qemu-test/src/dtc/tests/subnode_offset.c
DEP /tmp/qemu-test/src/dtc/tests/root_node.c
DEP /tmp/qemu-test/src/dtc/tests/get_mem_rsv.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_overlay.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_addresses.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_empty_tree.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_strerror.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_rw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_sw.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_wip.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt_ro.c
DEP /tmp/qemu-test/src/dtc/libfdt/fdt.c
DEP /tmp/qemu-test/src/dtc/util.c
DEP /tmp/qemu-test/src/dtc/fdtoverlay.c
DEP /tmp/qemu-test/src/dtc/fdtput.c
DEP /tmp/qemu-test/src/dtc/fdtget.c
DEP /tmp/qemu-test/src/dtc/fdtdump.c
DEP /tmp/qemu-test/src/dtc/srcpos.c
LEX convert-dtsv0-lexer.lex.c
BISON dtc-parser.tab.c
LEX dtc-lexer.lex.c
DEP /tmp/qemu-test/src/dtc/treesource.c
DEP /tmp/qemu-test/src/dtc/livetree.c
DEP /tmp/qemu-test/src/dtc/fstree.c
DEP /tmp/qemu-test/src/dtc/flattree.c
DEP /tmp/qemu-test/src/dtc/dtc.c
DEP /tmp/qemu-test/src/dtc/data.c
DEP /tmp/qemu-test/src/dtc/checks.c
DEP convert-dtsv0-lexer.lex.c
DEP dtc-parser.tab.c
DEP dtc-lexer.lex.c
CHK version_gen.h
UPD version_gen.h
DEP /tmp/qemu-test/src/dtc/util.c
CC libfdt/fdt.o
CC libfdt/fdt_ro.o
CC libfdt/fdt_rw.o
CC libfdt/fdt_strerror.o
CC libfdt/fdt_wip.o
CC libfdt/fdt_sw.o
CC libfdt/fdt_empty_tree.o
CC libfdt/fdt_addresses.o
CC libfdt/fdt_overlay.o
AR libfdt/libfdt.a
x86_64-w64-mingw32-ar: creating libfdt/libfdt.a
a - libfdt/fdt.o
a - libfdt/fdt_ro.o
a - libfdt/fdt_wip.o
a - libfdt/fdt_sw.o
a - libfdt/fdt_rw.o
a - libfdt/fdt_strerror.o
a - libfdt/fdt_empty_tree.o
a - libfdt/fdt_addresses.o
a - libfdt/fdt_overlay.o
RC version.o
mkdir -p dtc/libfdt
mkdir -p dtc/tests
GEN qga/qapi-generated/qga-qapi-visit.h
GEN qga/qapi-generated/qga-qapi-types.h
GEN qga/qapi-generated/qga-qapi-types.c
CC qapi-types.o
GEN qga/qapi-generated/qga-qmp-commands.h
GEN qga/qapi-generated/qga-qmp-marshal.c
GEN qga/qapi-generated/qga-qapi-visit.c
CC qmp-introspect.o
CC qapi-visit.o
CC qapi-event.o
CC qapi/qapi-visit-core.o
CC qapi/qapi-dealloc-visitor.o
CC qapi/qobject-input-visitor.o
CC qapi/qobject-output-visitor.o
CC qapi/qmp-registry.o
CC qapi/qmp-dispatch.o
CC qapi/string-input-visitor.o
CC qapi/string-output-visitor.o
CC qapi/opts-visitor.o
CC qapi/qapi-clone-visitor.o
CC qapi/qmp-event.o
CC qapi/qapi-util.o
CC qobject/qnull.o
CC qobject/qnum.o
CC qobject/qstring.o
CC qobject/qdict.o
CC qobject/qlist.o
CC qobject/qbool.o
CC qobject/qlit.o
CC qobject/qjson.o
CC qobject/qobject.o
CC qobject/json-lexer.o
CC qobject/json-streamer.o
CC qobject/json-parser.o
CC trace/simple.o
CC trace/control.o
CC trace/qmp.o
CC util/osdep.o
CC util/cutils.o
CC util/unicode.o
CC util/qemu-timer-common.o
CC util/bufferiszero.o
CC util/lockcnt.o
CC util/aiocb.o
CC util/async.o
CC util/thread-pool.o
CC util/qemu-timer.o
CC util/main-loop.o
CC util/iohandler.o
CC util/aio-win32.o
CC util/event_notifier-win32.o
CC util/oslib-win32.o
CC util/qemu-thread-win32.o
CC util/envlist.o
CC util/path.o
CC util/module.o
CC util/host-utils.o
CC util/bitmap.o
CC util/bitops.o
CC util/hbitmap.o
CC util/fifo8.o
CC util/acl.o
CC util/cacheinfo.o
CC util/error.o
CC util/qemu-error.o
CC util/id.o
CC util/iov.o
CC util/qemu-config.o
CC util/qemu-sockets.o
CC util/uri.o
CC util/notify.o
CC util/qemu-option.o
CC util/qemu-progress.o
CC util/keyval.o
CC util/hexdump.o
CC util/crc32c.o
CC util/uuid.o
CC util/throttle.o
CC util/getauxval.o
CC util/rcu.o
CC util/qemu-coroutine.o
CC util/readline.o
CC util/qemu-coroutine-lock.o
CC util/qemu-coroutine-io.o
CC util/qemu-coroutine-sleep.o
CC util/coroutine-win32.o
CC util/buffer.o
CC util/timed-average.o
CC util/base64.o
CC util/log.o
CC util/pagesize.o
CC util/qdist.o
CC util/qht.o
CC util/range.o
CC util/stats64.o
CC util/systemd.o
CC trace-root.o
CC util/trace.o
CC crypto/trace.o
CC io/trace.o
CC migration/trace.o
CC block/trace.o
CC chardev/trace.o
CC hw/char/trace.o
CC hw/block/dataplane/trace.o
CC hw/block/trace.o
CC hw/intc/trace.o
CC hw/net/trace.o
CC hw/rdma/trace.o
CC hw/rdma/vmw/trace.o
CC hw/virtio/trace.o
CC hw/audio/trace.o
CC hw/misc/trace.o
CC hw/misc/macio/trace.o
CC hw/usb/trace.o
CC hw/scsi/trace.o
CC hw/nvram/trace.o
CC hw/display/trace.o
CC hw/input/trace.o
CC hw/timer/trace.o
CC hw/dma/trace.o
CC hw/sparc/trace.o
CC hw/sparc64/trace.o
CC hw/sd/trace.o
CC hw/isa/trace.o
CC hw/mem/trace.o
CC hw/i386/trace.o
CC hw/i386/xen/trace.o
CC hw/9pfs/trace.o
CC hw/ppc/trace.o
CC hw/pci/trace.o
CC hw/pci-host/trace.o
CC hw/s390x/trace.o
CC hw/vfio/trace.o
CC hw/acpi/trace.o
CC hw/arm/trace.o
CC hw/alpha/trace.o
CC hw/hppa/trace.o
CC hw/xen/trace.o
CC hw/ide/trace.o
CC ui/trace.o
CC audio/trace.o
CC net/trace.o
CC target/arm/trace.o
CC target/i386/trace.o
CC target/mips/trace.o
CC target/sparc/trace.o
CC target/s390x/trace.o
CC target/ppc/trace.o
CC qom/trace.o
CC linux-user/trace.o
CC qapi/trace.o
CC accel/tcg/trace.o
CC accel/kvm/trace.o
CC nbd/trace.o
CC scsi/trace.o
CC crypto/pbkdf-stub.o
CC stubs/arch-query-cpu-def.o
CC stubs/arch-query-cpu-model-expansion.o
CC stubs/arch-query-cpu-model-comparison.o
CC stubs/arch-query-cpu-model-baseline.o
CC stubs/bdrv-next-monitor-owned.o
CC stubs/blk-commit-all.o
CC stubs/blockdev-close-all-bdrv-states.o
CC stubs/clock-warp.o
CC stubs/cpu-get-clock.o
CC stubs/cpu-get-icount.o
CC stubs/dump.o
CC stubs/error-printf.o
CC stubs/gdbstub.o
CC stubs/get-vm-name.o
CC stubs/iothread.o
CC stubs/fdset.o
CC stubs/is-daemonized.o
CC stubs/machine-init-done.o
CC stubs/iothread-lock.o
CC stubs/migr-blocker.o
CC stubs/change-state-handler.o
CC stubs/monitor.o
CC stubs/notify-event.o
CC stubs/qtest.o
CC stubs/replay.o
CC stubs/runstate-check.o
CC stubs/set-fd-handler.o
CC stubs/slirp.o
CC stubs/sysbus.o
CC stubs/tpm.o
CC stubs/trace-control.o
CC stubs/uuid.o
CC stubs/vm-stop.o
CC stubs/vmstate.o
CC stubs/fd-register.o
CC stubs/qmp_pc_dimm.o
CC stubs/target-monitor-defs.o
CC stubs/target-get-monitor-def.o
CC stubs/pc_madt_cpu_entry.o
CC stubs/vmgenid.o
CC stubs/xen-common.o
CC stubs/xen-hvm.o
CC stubs/pci-host-piix.o
CC stubs/ram-block.o
GEN qemu-img-cmds.h
CC block.o
CC blockjob.o
CC qemu-io-cmds.o
CC replication.o
CC block/raw-format.o
CC block/qcow.o
CC block/vdi.o
CC block/vmdk.o
CC block/cloop.o
CC block/bochs.o
CC block/vpc.o
CC block/vvfat.o
CC block/dmg.o
CC block/qcow2.o
CC block/qcow2-refcount.o
CC block/qcow2-cluster.o
CC block/qcow2-snapshot.o
CC block/qcow2-cache.o
CC block/qed.o
CC block/qcow2-bitmap.o
CC block/qed-l2-cache.o
CC block/qed-table.o
CC block/qed-cluster.o
CC block/qed-check.o
CC block/vhdx.o
CC block/vhdx-endian.o
CC block/quorum.o
CC block/vhdx-log.o
CC block/parallels.o
CC block/blkdebug.o
CC block/blkverify.o
CC block/blkreplay.o
CC block/block-backend.o
CC block/snapshot.o
CC block/qapi.o
CC block/file-win32.o
CC block/win32-aio.o
CC block/null.o
CC block/mirror.o
CC block/commit.o
CC block/io.o
CC block/throttle-groups.o
CC block/nbd.o
CC block/nbd-client.o
CC block/sheepdog.o
CC block/accounting.o
CC block/dirty-bitmap.o
CC block/write-threshold.o
CC block/backup.o
CC block/replication.o
CC block/throttle.o
CC block/crypto.o
CC nbd/server.o
CC nbd/client.o
CC nbd/common.o
CC scsi/utils.o
CC block/curl.o
CC block/ssh.o
CC block/dmg-bz2.o
CC crypto/init.o
CC crypto/hash.o
CC crypto/hash-nettle.o
CC crypto/hmac.o
CC crypto/hmac-nettle.o
CC crypto/aes.o
CC crypto/desrfb.o
CC crypto/cipher.o
CC crypto/tlscreds.o
CC crypto/tlscredsanon.o
CC crypto/tlscredsx509.o
CC crypto/tlssession.o
CC crypto/secret.o
CC crypto/random-gnutls.o
CC crypto/pbkdf.o
CC crypto/pbkdf-nettle.o
CC crypto/ivgen.o
CC crypto/ivgen-essiv.o
CC crypto/ivgen-plain.o
CC crypto/ivgen-plain64.o
CC crypto/afsplit.o
CC crypto/xts.o
CC crypto/block.o
CC crypto/block-qcow.o
CC crypto/block-luks.o
CC io/channel.o
CC io/channel-buffer.o
CC io/channel-command.o
CC io/channel-file.o
CC io/channel-socket.o
CC io/channel-tls.o
CC io/channel-watch.o
CC io/channel-websock.o
CC io/channel-util.o
CC io/dns-resolver.o
CC io/net-listener.o
CC io/task.o
CC qom/object.o
CC qom/container.o
CC qom/qom-qobject.o
CC qom/object_interfaces.o
CC qemu-io.o
CC blockdev.o
CC blockdev-nbd.o
CC bootdevice.o
CC iothread.o
CC qdev-monitor.o
CC device-hotplug.o
CC os-win32.o
CC bt-host.o
CC bt-vhci.o
CC dma-helpers.o
CC vl.o
CC tpm.o
CC device_tree.o
CC qmp-marshal.o
CC qmp.o
CC hmp.o
CC cpus-common.o
CC audio/audio.o
CC audio/noaudio.o
/tmp/qemu-test/src/block/nbd-client.c: In function 'nbd_client_co_get_block_status':
/tmp/qemu-test/src/block/nbd-client.c:887:15: error: '*((void *)&extent+4)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
NBDExtent extent;
^~~~~~
/tmp/qemu-test/src/block/nbd-client.c:920:27: error: 'extent' may be used uninitialized in this function [-Werror=maybe-uninitialized]
*pnum = extent.length >> BDRV_SECTOR_BITS;
cc1: all warnings being treated as errors
make: *** [/tmp/qemu-test/src/rules.mak:66: block/nbd-client.o] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
File "./tests/docker/docker.py", line 407, in <module>
sys.exit(main())
File "./tests/docker/docker.py", line 404, in main
return args.cmdobj.run(args, argv)
File "./tests/docker/docker.py", line 261, in run
return Docker().run(argv, args.keep, quiet=args.quiet)
File "./tests/docker/docker.py", line 229, in run
quiet=quiet)
File "./tests/docker/docker.py", line 147, in _do_check
return subprocess.check_call(self._command + cmd, **kwargs)
File "/usr/lib64/python2.7/subprocess.py", line 186, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['docker', 'run', '--label', 'com.qemu.instance.uuid=9ab6c86e192e11e89ce552540069c830', '-u', '0', '--security-opt', 'seccomp=unconfined', '--rm', '--net=none', '-e', 'TARGET_LIST=', '-e', 'EXTRA_CONFIGURE_OPTS=', '-e', 'V=', '-e', 'J=8', '-e', 'DEBUG=', '-e', 'SHOW_ENV=1', '-e', 'CCACHE_DIR=/var/tmp/ccache', '-v', '/root/.cache/qemu-docker-ccache:/var/tmp/ccache:z', '-v', '/var/tmp/patchew-tester-tmp-ffe51cdm/src/docker-src.2018-02-24-01.47.30.11028:/var/tmp/qemu:z,ro', 'qemu:fedora', '/var/tmp/qemu/run', 'test-mingw']' returned non-zero exit status 2
make[1]: *** [tests/docker/Makefile.include:129: docker-run] Error 1
make[1]: Leaving directory '/var/tmp/patchew-tester-tmp-ffe51cdm/src'
make: *** [tests/docker/Makefile.include:163: docker-run-test-mingw@fedora] Error 2
real 1m22.952s
user 0m3.968s
sys 0m3.564s
=== OUTPUT END ===
Test command exited with code: 2
---
Email generated automatically by Patchew [http://patchew.org/].
Please send your feedback to patchew-devel@freelists.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (11 preceding siblings ...)
2018-02-24 6:48 ` no-reply
@ 2018-02-26 16:57 ` Eric Blake
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants Eric Blake
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err Eric Blake
2018-03-09 19:08 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Eric Blake
13 siblings, 2 replies; 50+ messages in thread
From: Eric Blake @ 2018-02-26 16:57 UTC (permalink / raw)
To: qemu-devel; +Cc: vsementsov
Here's the bits of 3/9 and 5/9 that I liked, but where I made further
changes. I'd like to take these two, plus the original 2/9 as-is,
as part of my next NBD PULL request, but want to make sure you are
okay with my changes.
Yes, I still need to follow up on the upstream NBD list what we
are going to do about the disagreement on values for the constants
between the early Virtuozzo implementation and the current wording
in the NBD extension branch.
Vladimir Sementsov-Ogievskiy (2):
nbd: BLOCK_STATUS constants
nbd/client: fix error messages in nbd_handle_reply_err
include/block/nbd.h | 31 +++++++++++++++++++++++++++++++
nbd/client.c | 20 ++++++++++----------
nbd/common.c | 10 ++++++++++
nbd/server.c | 4 ++--
nbd/trace-events | 8 ++++----
5 files changed, 57 insertions(+), 16 deletions(-)
--
2.14.3
^ permalink raw reply [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches Eric Blake
@ 2018-02-26 16:57 ` Eric Blake
2018-03-01 12:06 ` Vladimir Sementsov-Ogievskiy
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err Eric Blake
1 sibling, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-26 16:57 UTC (permalink / raw)
To: qemu-devel
Cc: vsementsov, Paolo Bonzini, Kevin Wolf, Max Reitz,
open list:Network Block Dev...
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Expose the new constants and structs that will be used by both
server and client implementations of NBD_CMD_BLOCK_STATUS (the
command is currently experimental at
https://github.com/NetworkBlockDevice/nbd/blob/extension-blockstatus/doc/proto.md
but will hopefully be stabilized soon).
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1518702707-7077-4-git-send-email-vsementsov@virtuozzo.com>
[eblake: split from larger patch on server implementation]
Signed-off-by: Eric Blake <eblake@redhat.com>
---
include/block/nbd.h | 31 +++++++++++++++++++++++++++++++
nbd/common.c | 10 ++++++++++
2 files changed, 41 insertions(+)
diff --git a/include/block/nbd.h b/include/block/nbd.h
index ef1698914ba..53250d0979c 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -41,6 +41,12 @@ struct NBDOptionReply {
} QEMU_PACKED;
typedef struct NBDOptionReply NBDOptionReply;
+typedef struct NBDOptionReplyMetaContext {
+ NBDOptionReply h; /* h.type = NBD_REP_META_CONTEXT, h.length > 4 */
+ uint32_t context_id;
+ /* meta context name follows */
+} QEMU_PACKED NBDOptionReplyMetaContext;
+
/* Transmission phase structs
*
* Note: these are _NOT_ the same as the network representation of an NBD
@@ -105,6 +111,19 @@ typedef struct NBDStructuredError {
uint16_t message_length;
} QEMU_PACKED NBDStructuredError;
+/* Header of NBD_REPLY_TYPE_BLOCK_STATUS */
+typedef struct NBDStructuredMeta {
+ NBDStructuredReplyChunk h; /* h.length >= 12 (at least one extent) */
+ uint32_t context_id;
+ /* extents follows */
+} QEMU_PACKED NBDStructuredMeta;
+
+/* Extent chunk for NBD_REPLY_TYPE_BLOCK_STATUS */
+typedef struct NBDExtent {
+ uint32_t length;
+ uint32_t flags; /* NBD_STATE_* */
+} QEMU_PACKED NBDExtent;
+
/* Transmission (export) flags: sent from server to client during handshake,
but describe what will happen during transmission */
#define NBD_FLAG_HAS_FLAGS (1 << 0) /* Flags are there */
@@ -136,6 +155,8 @@ typedef struct NBDStructuredError {
#define NBD_OPT_INFO (6)
#define NBD_OPT_GO (7)
#define NBD_OPT_STRUCTURED_REPLY (8)
+#define NBD_OPT_LIST_META_CONTEXT (9)
+#define NBD_OPT_SET_META_CONTEXT (10)
/* Option reply types. */
#define NBD_REP_ERR(value) ((UINT32_C(1) << 31) | (value))
@@ -143,6 +164,7 @@ typedef struct NBDStructuredError {
#define NBD_REP_ACK (1) /* Data sending finished. */
#define NBD_REP_SERVER (2) /* Export description. */
#define NBD_REP_INFO (3) /* NBD_OPT_INFO/GO. */
+#define NBD_REP_META_CONTEXT (4) /* NBD_OPT_{LIST,SET}_META_CONTEXT */
#define NBD_REP_ERR_UNSUP NBD_REP_ERR(1) /* Unknown option */
#define NBD_REP_ERR_POLICY NBD_REP_ERR(2) /* Server denied */
@@ -163,6 +185,8 @@ typedef struct NBDStructuredError {
#define NBD_CMD_FLAG_FUA (1 << 0) /* 'force unit access' during write */
#define NBD_CMD_FLAG_NO_HOLE (1 << 1) /* don't punch hole on zero run */
#define NBD_CMD_FLAG_DF (1 << 2) /* don't fragment structured read */
+#define NBD_CMD_FLAG_REQ_ONE (1 << 3) /* only one extent in BLOCK_STATUS
+ * reply chunk */
/* Supported request types */
enum {
@@ -173,6 +197,7 @@ enum {
NBD_CMD_TRIM = 4,
/* 5 reserved for failed experiment NBD_CMD_CACHE */
NBD_CMD_WRITE_ZEROES = 6,
+ NBD_CMD_BLOCK_STATUS = 7,
};
#define NBD_DEFAULT_PORT 10809
@@ -200,9 +225,15 @@ enum {
#define NBD_REPLY_TYPE_NONE 0
#define NBD_REPLY_TYPE_OFFSET_DATA 1
#define NBD_REPLY_TYPE_OFFSET_HOLE 2
+#define NBD_REPLY_TYPE_BLOCK_STATUS 3
#define NBD_REPLY_TYPE_ERROR NBD_REPLY_ERR(1)
#define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_ERR(2)
+/* Flags for extents (NBDExtent.flags) of NBD_REPLY_TYPE_BLOCK_STATUS,
+ * for base:allocation meta context */
+#define NBD_STATE_HOLE (1 << 0)
+#define NBD_STATE_ZERO (1 << 1)
+
static inline bool nbd_reply_type_is_error(int type)
{
return type & (1 << 15);
diff --git a/nbd/common.c b/nbd/common.c
index 6295526dd14..8c95c1d606e 100644
--- a/nbd/common.c
+++ b/nbd/common.c
@@ -75,6 +75,10 @@ const char *nbd_opt_lookup(uint32_t opt)
return "go";
case NBD_OPT_STRUCTURED_REPLY:
return "structured reply";
+ case NBD_OPT_LIST_META_CONTEXT:
+ return "list meta context";
+ case NBD_OPT_SET_META_CONTEXT:
+ return "set meta context";
default:
return "<unknown>";
}
@@ -90,6 +94,8 @@ const char *nbd_rep_lookup(uint32_t rep)
return "server";
case NBD_REP_INFO:
return "info";
+ case NBD_REP_META_CONTEXT:
+ return "meta context";
case NBD_REP_ERR_UNSUP:
return "unsupported";
case NBD_REP_ERR_POLICY:
@@ -144,6 +150,8 @@ const char *nbd_cmd_lookup(uint16_t cmd)
return "trim";
case NBD_CMD_WRITE_ZEROES:
return "write zeroes";
+ case NBD_CMD_BLOCK_STATUS:
+ return "block status";
default:
return "<unknown>";
}
@@ -159,6 +167,8 @@ const char *nbd_reply_type_lookup(uint16_t type)
return "data";
case NBD_REPLY_TYPE_OFFSET_HOLE:
return "hole";
+ case NBD_REPLY_TYPE_BLOCK_STATUS:
+ return "block status";
case NBD_REPLY_TYPE_ERROR:
return "generic error";
case NBD_REPLY_TYPE_ERROR_OFFSET:
--
2.14.3
^ permalink raw reply related [flat|nested] 50+ messages in thread
* [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches Eric Blake
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants Eric Blake
@ 2018-02-26 16:57 ` Eric Blake
2018-03-01 12:10 ` Vladimir Sementsov-Ogievskiy
1 sibling, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-02-26 16:57 UTC (permalink / raw)
To: qemu-devel; +Cc: vsementsov, Paolo Bonzini, open list:Network Block Dev...
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
1. NBD_REP_ERR_INVALID is not only about length, so, make message more
general
2. hex format is not very good: it's hard to read something like
"option a (set meta context)", so switch to dec.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1518702707-7077-6-git-send-email-vsementsov@virtuozzo.com>
[eblake: expand scope of patch: ALL uses of nbd_opt_lookup are now
decimal, all uses of nbd_rep_lookup are prefixed hex]
Signed-off-by: Eric Blake <eblake@redhat.com>
---
nbd/client.c | 20 ++++++++++----------
nbd/server.c | 4 ++--
nbd/trace-events | 8 ++++----
3 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/nbd/client.c b/nbd/client.c
index 89f80f95905..756e110f895 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -180,22 +180,22 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
goto cleanup;
case NBD_REP_ERR_POLICY:
- error_setg(errp, "Denied by server for option %" PRIx32 " (%s)",
+ error_setg(errp, "Denied by server for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_INVALID:
- error_setg(errp, "Invalid data length for option %" PRIx32 " (%s)",
+ error_setg(errp, "Invalid parameters for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_PLATFORM:
- error_setg(errp, "Server lacks support for option %" PRIx32 " (%s)",
+ error_setg(errp, "Server lacks support for option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_TLS_REQD:
- error_setg(errp, "TLS negotiation required before option %" PRIx32
+ error_setg(errp, "TLS negotiation required before option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
@@ -204,17 +204,17 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
break;
case NBD_REP_ERR_SHUTDOWN:
- error_setg(errp, "Server shutting down before option %" PRIx32 " (%s)",
+ error_setg(errp, "Server shutting down before option %" PRIu32 " (%s)",
reply->option, nbd_opt_lookup(reply->option));
break;
case NBD_REP_ERR_BLOCK_SIZE_REQD:
- error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIx32
+ error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
default:
- error_setg(errp, "Unknown error code when asking for option %" PRIx32
+ error_setg(errp, "Unknown error code when asking for option %" PRIu32
" (%s)", reply->option, nbd_opt_lookup(reply->option));
break;
}
@@ -378,8 +378,8 @@ static int nbd_opt_go(QIOChannel *ioc, const char *wantname,
return 1;
}
if (reply.type != NBD_REP_INFO) {
- error_setg(errp, "unexpected reply type %" PRIx32
- " (%s), expected %x",
+ error_setg(errp, "unexpected reply type 0x%" PRIx32
+ " (%s), expected 0x%x",
reply.type, nbd_rep_lookup(reply.type), NBD_REP_INFO);
nbd_send_opt_abort(ioc);
return -1;
@@ -534,7 +534,7 @@ static int nbd_request_simple_option(QIOChannel *ioc, int opt, Error **errp)
if (reply.type != NBD_REP_ACK) {
error_setg(errp, "Server answered option %d (%s) with unexpected "
- "reply %" PRIx32 " (%s)", opt, nbd_opt_lookup(opt),
+ "reply 0x%" PRIx32 " (%s)", opt, nbd_opt_lookup(opt),
reply.type, nbd_rep_lookup(reply.type));
nbd_send_opt_abort(ioc);
return -1;
diff --git a/nbd/server.c b/nbd/server.c
index 112e3f69dff..4990a5826e6 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -806,7 +806,7 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
default:
ret = nbd_opt_drop(client, NBD_REP_ERR_UNSUP, errp,
- "Unsupported option 0x%" PRIx32 " (%s)",
+ "Unsupported option %" PRIu32 " (%s)",
option, nbd_opt_lookup(option));
break;
}
@@ -822,7 +822,7 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
errp);
default:
- error_setg(errp, "Unsupported option 0x%" PRIx32 " (%s)",
+ error_setg(errp, "Unsupported option %" PRIu32 " (%s)",
option, nbd_opt_lookup(option));
return -EINVAL;
}
diff --git a/nbd/trace-events b/nbd/trace-events
index 2b8268ce8c3..ac19a366aac 100644
--- a/nbd/trace-events
+++ b/nbd/trace-events
@@ -1,7 +1,7 @@
# nbd/client.c
nbd_send_option_request(uint32_t opt, const char *name, uint32_t len) "Sending option request %" PRIu32" (%s), len %" PRIu32
-nbd_receive_option_reply(uint32_t option, const char *optname, uint32_t type, const char *typename, uint32_t length) "Received option reply 0x%" PRIx32" (%s), type 0x%" PRIx32" (%s), len %" PRIu32
-nbd_reply_err_unsup(uint32_t option, const char *name) "server doesn't understand request 0x%" PRIx32 " (%s), attempting fallback"
+nbd_receive_option_reply(uint32_t option, const char *optname, uint32_t type, const char *typename, uint32_t length) "Received option reply %" PRIu32" (%s), type 0x%" PRIx32" (%s), len %" PRIu32
+nbd_reply_err_unsup(uint32_t option, const char *name) "server doesn't understand request %" PRIu32 " (%s), attempting fallback"
nbd_opt_go_start(const char *name) "Attempting NBD_OPT_GO for export '%s'"
nbd_opt_go_success(void) "Export is good to go"
nbd_opt_go_info_unknown(int info, const char *name) "Ignoring unknown info %d (%s)"
@@ -33,7 +33,7 @@ nbd_receive_structured_reply_chunk(uint16_t flags, uint16_t type, const char *na
nbd_unknown_error(int err) "Squashing unexpected error %d to EINVAL"
# nbd/server.c
-nbd_negotiate_send_rep_len(uint32_t opt, const char *optname, uint32_t type, const char *typename, uint32_t len) "Reply opt=0x%" PRIx32 " (%s), type=0x%" PRIx32 " (%s), len=%" PRIu32
+nbd_negotiate_send_rep_len(uint32_t opt, const char *optname, uint32_t type, const char *typename, uint32_t len) "Reply opt=%" PRIu32 " (%s), type=0x%" PRIx32 " (%s), len=%" PRIu32
nbd_negotiate_send_rep_err(const char *msg) "sending error message \"%s\""
nbd_negotiate_send_rep_list(const char *name, const char *desc) "Advertising export name '%s' description '%s'"
nbd_negotiate_handle_export_name(void) "Checking length"
@@ -46,7 +46,7 @@ nbd_negotiate_handle_starttls(void) "Setting up TLS"
nbd_negotiate_handle_starttls_handshake(void) "Starting TLS handshake"
nbd_negotiate_options_flags(uint32_t flags) "Received client flags 0x%" PRIx32
nbd_negotiate_options_check_magic(uint64_t magic) "Checking opts magic 0x%" PRIx64
-nbd_negotiate_options_check_option(uint32_t option, const char *name) "Checking option 0x%" PRIx32 " (%s)"
+nbd_negotiate_options_check_option(uint32_t option, const char *name) "Checking option %" PRIu32 " (%s)"
nbd_negotiate_begin(void) "Beginning negotiation"
nbd_negotiate_old_style(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags 0x%x"
nbd_negotiate_new_style_size_flags(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags 0x%x"
--
2.14.3
^ permalink raw reply related [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-16 17:01 ` Eric Blake
@ 2018-03-01 11:36 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-01 11:36 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 20:01, Eric Blake wrote:
> On 02/16/2018 08:43 AM, Vladimir Sementsov-Ogievskiy wrote:
>> 16.02.2018 16:21, Eric Blake wrote:
>>> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>>>> Minimal realization: only one extent in server answer is supported.
>>>>
>>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>>> ---
>
>>> Again, function comments are useful.
>>>
>>>> + if (query[0] == '\0' || strcmp(query, "allocation") == 0) {
>>>> + /* Note: empty query should select all contexts within base
>>>> + * namespace. */
>>>> + meta->base_allocation = true;
>>>
>>> From the client perspective, this handling of the empty leaf-name
>>> works well for NBD_OPT_LIST_META_CONTEXT (I want to see what leaf
>>> nodes the server supports), but not so well for
>>> NBD_OPT_SET_META_CONTEXT (asking the server to send ALL base
>>> allocations, even when I don't necessarily know how to interpret
>>> anything other than base:allocation, is a waste). So this function
>>> needs a bool parameter that says whether it is being invoked from
>>> _LIST (empty string okay, to advertise ALL base leaf names back to
>>> client, which for now is just base:allocation) or from _SET (empty
>>> string is ignored as invalid; client has to specifically ask for
>>> base:allocation by name).
>>
>> "empty string is ignored as invalid", hm, do we have this in spec? I
>> think SET and LIST must select exactly same sets of contexts.
>
> No, it is specifically NOT intended that SET and LIST have to produce
> the same set of contexts; although I do see your point that as
> currently written, it does not appear to require SET to ignore "base:"
> or to treat it as an error. At any rate, the spec gives the example of:
>
>> In either case, however, for any given namespace the server MAY,
>> instead of exhaustively listing every matching context available to
>> select (or every context available to select where no query is
>> given), send sufficient context records back to allow a client with
>> knowledge of the namespace to select any context. This may be helpful
>> where a client can construct algorithmic queries. For instance, a
>> client might reply simply with the namespace with no leaf-name (e.g.
>> 'X-FooBar:') or with a range of values (e.g.
>> 'X-ModifiedDate:20160310-20161214'). The semantics of such a reply
>> are a matter for the definition of the namespace. However each
>> namespace returned MUST begin with the relevant namespace, followed
>> by a colon, and then other UTF-8 characters, with the entire string
>> following the restrictions for strings set out earlier in this document.
>
> with the intent being that for some namespaces, it may be easy to
> perform an algorithmic query via _LIST to see what ranges are
> supported, but that you cannot select ALL elements in the range
> simultaneously. The empty query for _LIST exists to enumerate what is
> supported, but does not have to equate to an empty query for _SET
> selecting everything possible. I could even see it being possible to
> have some round-trips, depending on the namespace (of course, any
> namespace other than "base:" will be tightly coordinated between both
> client and server, so they understand each other - the point was that
> the NBD spec didn't want to constrain what a client and server could
> do as long as they stay within the generic framework):
>
> C> LIST ""
> S> REPLY "base:allocation" id 0
> S> REPLY "X-FooBar:" id 0
> S> ACK
> C> LIST "X-FooBar:"
> S> REPLY "X-FooBar:A_Required", id 0
> S> REPLY "X-FooBar:A_Min=100", id 0
> S> REPLY "X-FooBar:A_Max=200", id 0
> S> REPLY "X-FooBar:B_Default=300", id 0
> S> REPLY "X-FooBar:B_Min=300", id 0
> S> REPLY "X-FooBar:B_Max=400", id 0
> S> ACK
> C> SET "X-FooBar:A=150" "base:allocation"
> S> REPLY "X-FooBar:A=150,B=300", id 1
> S> REPLY "base:allocation", id 2
> S> ACK
>
> where the global query of all available contexts merely lists that
> X-FooBar: is understood, but that a specific query is needed for more
> details (to avoid the client having to parse those specifics if it
> doesn't care about X-FooBar:), and the specific query sets up the
> algorithmic description (parameter A is required, between 100 and 200;
> parameter B is optional, between 300 and 400, defaulting to 300), and
> the final SET gives the actual request (A given a value, B left to its
> default; but the reply names the entire context rather than repeating
> the shorter request). So the spec is written to permit something like
> that for third-party namespaces, while also trying to be very specific
> about the "base:" context as that is the one that needs the most
> interoperability.
>
>> It is strange behavior of client to set "base:", but it is its
>> decision. And I don't thing that it is invalid.
>
> For LIST, querying "base:" makes total sense (for the sake of example,
> we may add "base:frob" down the road that does something new. Being
> able to LIST whether "base:" turns into just "base:allocation" or into
> "base:allocation"+"base:frob" may be useful to a client that
> understands both formats and wants to probe if the server is new; and
> even for a client right now, the client can gracefully note that it
> doesn't want to select "base:frob"). But for SET, it does not (if
> "base:" turns into "base:allocation" + "base:frob" down the road, then
> the server is wasting time preparing the response to "base:frob" for
> every NBD_CMD_BLOCK_STATUS, and the client is wasting time unpacking
> from the wire and ignoring it), so having the empty query work on LIST
> but not on SET makes sense.
Ok, understand, you are right, and, correspondingly,
>
>> Formally we may answer with NBD_REP_ERR_TOO_BIG, but it will look
>> weird, as client see that both base: and base:allocation returns
>> _one_ context, but in one case it is too big. But if we will have
>> several base: contextes, server may fairly answer with
>> NBD_REP_ERR_TOO_BIG.
>
> Hmm, you have a point that while a client can ask for "namespace:",
> the server should always respond with "namespace:leaf" for the actual
> contexts that it supports/selects, so that the client knows which
> leaves it actually got, if it does not fail with ERR_TOO_BIG. You are
> also right that failing with ERR_TOO_BIG for "base:" seems odd, but it
> may make more sense for other namespaces.
_INVALID is ok here.
>
>>
>> So, I think for now the code is ok.
>
> Then this is probably worth something to bring up on the NBD list, if
> we need to tweak wording to be more explicit (whether we should
> allow/forbid wildcards during SET, or if wildcard queries are intended
> only for LIST). Sounds like I have more spec emails to write to the
> NBD list.
So, code is not ok, I'll fix)
>
>>
>> Also, I don't see NBD_REP_ERR_TOO_BIG possible reply in
>> NBD_OPT_LIST_META_CONTEXT description. Should it be here?
>
> Yeah, that's probably also worth adding to the upstream spec, even
> though it already encourages LIST results to send compressed
> information back that allows a client to contruct valid specific
> queries, rather than an exhaustive list of selecting everything possible.
>
>>>> +/* nbd_negotiate_meta_query
>>>> + * Return -errno on I/O error, 0 if option was completely handled by
>>>> + * sending a reply about inconsistent lengths, or 1 on success. */
>>>> +static int nbd_negotiate_meta_query(NBDClient *client,
>>>> + NBDExportMetaContexts *meta,
>>>> Error **errp)
>>>> +{
>>>> + int ret;
>>>> + char *query, *colon, *namespace, *subquery;
>>>
>>> Is it worth stack-allocating query here, so you don't have to
>>> g_free() it later? NBD limits the maximum string to 4k, which is a
>>> little bit big for stack allocation (on an operating system with 4k
>>> pages, allocating more than 4k on the stack in one function risks
>>> missing the guard page on stack overflow), but we also have the
>>> benefit that we KNOW that the set of meta-context namespaces that we
>>> support have a much smaller maximum limit of what we even care about.
>>
>> it is not stack allocated, nbd_alloc_read_size_string calls g_malloc.
>
> Hence my question - do we NEED the malloc'd version, or can we get
> away with a stack-allocated space? Although I then revised my
> question...
ohm, just misread, will try.
>
>>
>>>
>>>> +
>>>> + ret = nbd_alloc_read_size_string(client, &query, errp);
>>>> + if (ret <= 0) {
>>>> + return ret;
>>>> + }
>>>> +
>>>> + colon = strchr(query, ':');
>>>> + if (colon == NULL) {
>>>> + ret = nbd_opt_invalid(client, errp, "no colon in query");
>>>> + goto out;
>>>
>>> Hmm, that puts a slight wrinkle into my proposal, or else maybe it
>>> is something I should bring up on the NBD list. If we only read 5
>>> characters (because the max namespace WE support is "base:"), but a
>>> client asks for namespace "X-longname:", we should gracefully ignore
>>> the client's request; while we still want to reply with an error to
>>> a client that asks for "garbage" with no colon at all. The question
>>> for the NBD spec, then, is whether detecting bad client requests
>>> that didn't use colon is mandatory for the server (meaning we MUST
>>> read the entire namespace request, and search for the colon) or
>>> merely best effort (we only have to read 5 characters, and if we
>>> silently ignore instead of diagnose a bad namespace request that was
>>> longer than that, oh well). Worded from the client, it switches to a
>>> question of whether the client should expect the server to diagnose
>>> all requests, or must be prepared for the server to ignore requests
>>> even where those requests are bogus. Or, the NBD spec may change
>>> slightly to pass namespace and leafname as separate fields, both
>>> with lengths, rather than a colon, to make it easier for the server
>>> to skip over an unknown namespace/leaf pair without having to parse
>>> whether a colon was present. I'll send that in a separate email (the
>>> upstream NBD list doesn't need to see all my review comments on this
>>> thread).
>
> ... in light of this thread now on the NBD list.
>
>>
>> Thank you for careful review!
>
> No problem. We still have some things to sort out on the NBD list as
> well, but I want to make sure we get something that is likely to work
> well with other implementations (I'm also trying, on the side, to get
> nbdkit to support structured reads so I have something available for
> testing cross-implementation support, but it is slow going).
>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err
2018-02-16 17:38 ` Eric Blake
@ 2018-03-01 11:38 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-01 11:38 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 20:38, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> 1. NBD_REP_ERR_INVALID is not only about length, so, make message more
>> general
>>
>> 2. hex format is not very good: it's hard to read something like
>> "option a (set meta context)", so switch to dec.
>
> It would be okay as option 0xa; I also want to be sure we match the
> output in server traces with the output in client traces; for example,
> I found:
>
> nbd/server.c- error_setg(errp, "Unsupported option 0x%"
> PRIx32 " (%s)",
> nbd/server.c: option, nbd_opt_lookup(option));
>
> So we want consistency through all the call sites, before this patch
> is ready to go, although I agree we need it.
>
I think, decimal format for NBD constants is better, as it used in the spec.
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS
2018-02-16 21:02 ` Eric Blake
@ 2018-03-01 11:51 ` Vladimir Sementsov-Ogievskiy
2018-03-01 18:23 ` Eric Blake
0 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-01 11:51 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
17.02.2018 00:02, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>> tests/qemu-iotests/206 | 34 ++++++++++++++++++++++++++++++++++
>> tests/qemu-iotests/206.out | 2 ++
>> tests/qemu-iotests/group | 1 +
>> 3 files changed, 37 insertions(+)
>> create mode 100644 tests/qemu-iotests/206
>> create mode 100644 tests/qemu-iotests/206.out
>
> It's a race! Kevin already has test 206 and 207 claimed in his pending
> series:
> https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02363.html
> Whoever loses gets to rebase and renumber (or the maintainer on their
> behalf) ;)
is there any simple method to get a number for new test? Any way to
avoid such situations?
>
>>
>> diff --git a/tests/qemu-iotests/206 b/tests/qemu-iotests/206
>> new file mode 100644
>
> Oops, you forgot to mark this executable. And oops, I forgot to flag
> that on test 205. Other inconsistent tests: 096, 124, 129, 132, 136,
> 139, 148, 152, 163. Separate cleanup patch coming up soon.
>
>> index 0000000000..259e991ec6
>> --- /dev/null
>> +++ b/tests/qemu-iotests/206
>> @@ -0,0 +1,34 @@
>> +#!/usr/bin/env python
>> +#
>> +# Tests for NBD BLOCK_STATUS extension
>> +#
>
>> +import iotests
>> +from iotests import qemu_img_create, qemu_io, qemu_img_verbose,
>> qemu_nbd, \
>> + file_path
>> +
>> +iotests.verify_image_format(supported_fmts=['qcow2'])
>
> Don't we also need to blacklist v2 files (and only operate on v3 or
> newer), since the behavior of zero clusters is much worse on v2 images?
hm. I think if test passed, all is ok. qemu-img creates good enough
image to pass the test..
>
>> +
>> +disk, nbd_sock = file_path('disk', 'nbd-sock')
>> +nbd_uri = 'nbd+unix:///exp?socket=' + nbd_sock
>> +
>> +qemu_img_create('-f', iotests.imgfmt, disk, '1M')
>> +qemu_io('-f', iotests.imgfmt, '-c', 'write 0 512K', disk)
>
> Hopefully large enough for all the major filesystems with sparse
> support to show half-data, half-hole, and not run into any weird
> issues where granularity differences between filesystems change the
> outcome.
>
>> +
>> +qemu_nbd('-k', nbd_sock, '-x', 'exp', '-f', iotests.imgfmt, disk)
>> +qemu_img_verbose('map', '-f', 'raw', '--output=json', nbd_uri)
>> diff --git a/tests/qemu-iotests/206.out b/tests/qemu-iotests/206.out
>> new file mode 100644
>> index 0000000000..0d29724e84
>> --- /dev/null
>> +++ b/tests/qemu-iotests/206.out
>> @@ -0,0 +1,2 @@
>> +[{ "start": 0, "length": 524288, "depth": 0, "zero": false, "data":
>> true},
>> +{ "start": 524288, "length": 524288, "depth": 0, "zero": true,
>> "data": false}]
>
> But definite evidence of getting block status over NBD! Progress!
>
> And kudos for producing an .out file that I can actually read and
> reproduce without the aid of python (in contrast to the more
> "unit-test"-y ones like 205, where we had a big long side-discussion
> about that. No need to repeat it here).
>
>> diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
>> index a2dfe79d86..2c3925566a 100644
>> --- a/tests/qemu-iotests/group
>> +++ b/tests/qemu-iotests/group
>> @@ -202,3 +202,4 @@
>> 203 rw auto
>> 204 rw auto quick
>> 205 rw auto quick
>> +206 rw auto quick
>>
>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants Eric Blake
@ 2018-03-01 12:06 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-01 12:06 UTC (permalink / raw)
To: Eric Blake, qemu-devel
Cc: Paolo Bonzini, Kevin Wolf, Max Reitz, open list:Network Block Dev...
26.02.2018 19:57, Eric Blake wrote:
> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>
> Expose the new constants and structs that will be used by both
> server and client implementations of NBD_CMD_BLOCK_STATUS (the
> command is currently experimental at
> https://github.com/NetworkBlockDevice/nbd/blob/extension-blockstatus/doc/proto.md
> but will hopefully be stabilized soon).
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> Message-Id: <1518702707-7077-4-git-send-email-vsementsov@virtuozzo.com>
> [eblake: split from larger patch on server implementation]
> Signed-off-by: Eric Blake <eblake@redhat.com>
ok, with NBD_REPLY_TYPE_BLOCK_STATUS switched back to 5, as it was decided.
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err Eric Blake
@ 2018-03-01 12:10 ` Vladimir Sementsov-Ogievskiy
2018-03-01 18:25 ` Eric Blake
0 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-01 12:10 UTC (permalink / raw)
To: Eric Blake, qemu-devel; +Cc: Paolo Bonzini, open list:Network Block Dev...
26.02.2018 19:57, Eric Blake wrote:
> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>
> 1. NBD_REP_ERR_INVALID is not only about length, so, make message more
> general
>
> 2. hex format is not very good: it's hard to read something like
> "option a (set meta context)", so switch to dec.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> Message-Id: <1518702707-7077-6-git-send-email-vsementsov@virtuozzo.com>
> [eblake: expand scope of patch: ALL uses of nbd_opt_lookup are now
> decimal, all uses of nbd_rep_lookup are prefixed hex]
> Signed-off-by: Eric Blake <eblake@redhat.com>
one thought: isn't it better to have all NBD constants in dec, like in spec?
> ---
> nbd/client.c | 20 ++++++++++----------
> nbd/server.c | 4 ++--
> nbd/trace-events | 8 ++++----
> 3 files changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/nbd/client.c b/nbd/client.c
> index 89f80f95905..756e110f895 100644
> --- a/nbd/client.c
> +++ b/nbd/client.c
> @@ -180,22 +180,22 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
> goto cleanup;
>
> case NBD_REP_ERR_POLICY:
> - error_setg(errp, "Denied by server for option %" PRIx32 " (%s)",
> + error_setg(errp, "Denied by server for option %" PRIu32 " (%s)",
> reply->option, nbd_opt_lookup(reply->option));
> break;
>
> case NBD_REP_ERR_INVALID:
> - error_setg(errp, "Invalid data length for option %" PRIx32 " (%s)",
> + error_setg(errp, "Invalid parameters for option %" PRIu32 " (%s)",
> reply->option, nbd_opt_lookup(reply->option));
> break;
>
> case NBD_REP_ERR_PLATFORM:
> - error_setg(errp, "Server lacks support for option %" PRIx32 " (%s)",
> + error_setg(errp, "Server lacks support for option %" PRIu32 " (%s)",
> reply->option, nbd_opt_lookup(reply->option));
> break;
>
> case NBD_REP_ERR_TLS_REQD:
> - error_setg(errp, "TLS negotiation required before option %" PRIx32
> + error_setg(errp, "TLS negotiation required before option %" PRIu32
> " (%s)", reply->option, nbd_opt_lookup(reply->option));
> break;
>
> @@ -204,17 +204,17 @@ static int nbd_handle_reply_err(QIOChannel *ioc, NBDOptionReply *reply,
> break;
>
> case NBD_REP_ERR_SHUTDOWN:
> - error_setg(errp, "Server shutting down before option %" PRIx32 " (%s)",
> + error_setg(errp, "Server shutting down before option %" PRIu32 " (%s)",
> reply->option, nbd_opt_lookup(reply->option));
> break;
>
> case NBD_REP_ERR_BLOCK_SIZE_REQD:
> - error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIx32
> + error_setg(errp, "Server requires INFO_BLOCK_SIZE for option %" PRIu32
> " (%s)", reply->option, nbd_opt_lookup(reply->option));
> break;
>
> default:
> - error_setg(errp, "Unknown error code when asking for option %" PRIx32
> + error_setg(errp, "Unknown error code when asking for option %" PRIu32
> " (%s)", reply->option, nbd_opt_lookup(reply->option));
> break;
> }
> @@ -378,8 +378,8 @@ static int nbd_opt_go(QIOChannel *ioc, const char *wantname,
> return 1;
> }
> if (reply.type != NBD_REP_INFO) {
> - error_setg(errp, "unexpected reply type %" PRIx32
> - " (%s), expected %x",
> + error_setg(errp, "unexpected reply type 0x%" PRIx32
> + " (%s), expected 0x%x",
> reply.type, nbd_rep_lookup(reply.type), NBD_REP_INFO);
> nbd_send_opt_abort(ioc);
> return -1;
> @@ -534,7 +534,7 @@ static int nbd_request_simple_option(QIOChannel *ioc, int opt, Error **errp)
>
> if (reply.type != NBD_REP_ACK) {
> error_setg(errp, "Server answered option %d (%s) with unexpected "
> - "reply %" PRIx32 " (%s)", opt, nbd_opt_lookup(opt),
> + "reply 0x%" PRIx32 " (%s)", opt, nbd_opt_lookup(opt),
> reply.type, nbd_rep_lookup(reply.type));
> nbd_send_opt_abort(ioc);
> return -1;
> diff --git a/nbd/server.c b/nbd/server.c
> index 112e3f69dff..4990a5826e6 100644
> --- a/nbd/server.c
> +++ b/nbd/server.c
> @@ -806,7 +806,7 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
>
> default:
> ret = nbd_opt_drop(client, NBD_REP_ERR_UNSUP, errp,
> - "Unsupported option 0x%" PRIx32 " (%s)",
> + "Unsupported option %" PRIu32 " (%s)",
> option, nbd_opt_lookup(option));
> break;
> }
> @@ -822,7 +822,7 @@ static int nbd_negotiate_options(NBDClient *client, uint16_t myflags,
> errp);
>
> default:
> - error_setg(errp, "Unsupported option 0x%" PRIx32 " (%s)",
> + error_setg(errp, "Unsupported option %" PRIu32 " (%s)",
> option, nbd_opt_lookup(option));
> return -EINVAL;
> }
> diff --git a/nbd/trace-events b/nbd/trace-events
> index 2b8268ce8c3..ac19a366aac 100644
> --- a/nbd/trace-events
> +++ b/nbd/trace-events
> @@ -1,7 +1,7 @@
> # nbd/client.c
> nbd_send_option_request(uint32_t opt, const char *name, uint32_t len) "Sending option request %" PRIu32" (%s), len %" PRIu32
> -nbd_receive_option_reply(uint32_t option, const char *optname, uint32_t type, const char *typename, uint32_t length) "Received option reply 0x%" PRIx32" (%s), type 0x%" PRIx32" (%s), len %" PRIu32
> -nbd_reply_err_unsup(uint32_t option, const char *name) "server doesn't understand request 0x%" PRIx32 " (%s), attempting fallback"
> +nbd_receive_option_reply(uint32_t option, const char *optname, uint32_t type, const char *typename, uint32_t length) "Received option reply %" PRIu32" (%s), type 0x%" PRIx32" (%s), len %" PRIu32
> +nbd_reply_err_unsup(uint32_t option, const char *name) "server doesn't understand request %" PRIu32 " (%s), attempting fallback"
> nbd_opt_go_start(const char *name) "Attempting NBD_OPT_GO for export '%s'"
> nbd_opt_go_success(void) "Export is good to go"
> nbd_opt_go_info_unknown(int info, const char *name) "Ignoring unknown info %d (%s)"
> @@ -33,7 +33,7 @@ nbd_receive_structured_reply_chunk(uint16_t flags, uint16_t type, const char *na
> nbd_unknown_error(int err) "Squashing unexpected error %d to EINVAL"
>
> # nbd/server.c
> -nbd_negotiate_send_rep_len(uint32_t opt, const char *optname, uint32_t type, const char *typename, uint32_t len) "Reply opt=0x%" PRIx32 " (%s), type=0x%" PRIx32 " (%s), len=%" PRIu32
> +nbd_negotiate_send_rep_len(uint32_t opt, const char *optname, uint32_t type, const char *typename, uint32_t len) "Reply opt=%" PRIu32 " (%s), type=0x%" PRIx32 " (%s), len=%" PRIu32
> nbd_negotiate_send_rep_err(const char *msg) "sending error message \"%s\""
> nbd_negotiate_send_rep_list(const char *name, const char *desc) "Advertising export name '%s' description '%s'"
> nbd_negotiate_handle_export_name(void) "Checking length"
> @@ -46,7 +46,7 @@ nbd_negotiate_handle_starttls(void) "Setting up TLS"
> nbd_negotiate_handle_starttls_handshake(void) "Starting TLS handshake"
> nbd_negotiate_options_flags(uint32_t flags) "Received client flags 0x%" PRIx32
> nbd_negotiate_options_check_magic(uint64_t magic) "Checking opts magic 0x%" PRIx64
> -nbd_negotiate_options_check_option(uint32_t option, const char *name) "Checking option 0x%" PRIx32 " (%s)"
> +nbd_negotiate_options_check_option(uint32_t option, const char *name) "Checking option %" PRIu32 " (%s)"
> nbd_negotiate_begin(void) "Beginning negotiation"
> nbd_negotiate_old_style(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags 0x%x"
> nbd_negotiate_new_style_size_flags(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags 0x%x"
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS
2018-03-01 11:51 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-01 18:23 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-03-01 18:23 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 03/01/2018 05:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> 17.02.2018 00:02, Eric Blake wrote:
>> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>> ---
>>> tests/qemu-iotests/206 | 34 ++++++++++++++++++++++++++++++++++
>>> tests/qemu-iotests/206.out | 2 ++
>>> tests/qemu-iotests/group | 1 +
>>> 3 files changed, 37 insertions(+)
>>> create mode 100644 tests/qemu-iotests/206
>>> create mode 100644 tests/qemu-iotests/206.out
>>
>> It's a race! Kevin already has test 206 and 207 claimed in his pending
>> series:
>> https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02363.html
>> Whoever loses gets to rebase and renumber (or the maintainer on their
>> behalf) ;)
>
>
> is there any simple method to get a number for new test? Any way to
> avoid such situations?
Short of searching the mailing list for what numbers have already been
mentioned, not really.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err
2018-03-01 12:10 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-01 18:25 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-03-01 18:25 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel
Cc: Paolo Bonzini, open list:Network Block Dev...
On 03/01/2018 06:10 AM, Vladimir Sementsov-Ogievskiy wrote:
> 26.02.2018 19:57, Eric Blake wrote:
>> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>
>> 1. NBD_REP_ERR_INVALID is not only about length, so, make message more
>> general
>>
>> 2. hex format is not very good: it's hard to read something like
>> "option a (set meta context)", so switch to dec.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> Message-Id: <1518702707-7077-6-git-send-email-vsementsov@virtuozzo.com>
>> [eblake: expand scope of patch: ALL uses of nbd_opt_lookup are now
>> decimal, all uses of nbd_rep_lookup are prefixed hex]
>> Signed-off-by: Eric Blake <eblake@redhat.com>
>
> one thought: isn't it better to have all NBD constants in dec, like in
> spec?
Sure, I can make that change.
>> @@ -378,8 +378,8 @@ static int nbd_opt_go(QIOChannel *ioc, const char
>> *wantname,
>> return 1;
>> }
>> if (reply.type != NBD_REP_INFO) {
>> - error_setg(errp, "unexpected reply type %" PRIx32
>> - " (%s), expected %x",
>> + error_setg(errp, "unexpected reply type 0x%" PRIx32
>> + " (%s), expected 0x%x",
>> reply.type, nbd_rep_lookup(reply.type),
>> NBD_REP_INFO);
That is, I'll respin with this and other nbd_rep_lookup()s using decimal
output.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper
2018-02-15 22:01 ` Eric Blake
@ 2018-03-02 12:40 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-02 12:40 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 01:01, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> NBD_REP_ERR_INVALID is often parameter to nbd_opt_drop and it would
>> be used more in following patches. So, let's add a helper.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>> nbd/server.c | 50 ++++++++++++++++++++++++++++++++++++--------------
>> 1 file changed, 36 insertions(+), 14 deletions(-)
>
> More than twice the lines added compared to what was removed, so it's
> a tough call whether this refactoring makes a common pattern easier or
> just adds burden in tracing what gets executed, just to remove a
> parameter. I'm not opposed to the patch, but want to see how it helps
> the rest of the series.
>
> At any rate, the conversion itself is done correctly, so if we keep
> the patch, it has earned:
>
> Reviewed-by: Eric Blake <eblake@redhat.com>
>
>
>> +static int GCC_FMT_ATTR(4, 5)
>> +nbd_opt_drop(NBDClient *client, uint32_t type, Error **errp,
>> + const char *fmt, ...)
>> +{
>> + int ret;
>> + va_list va;
>> +
>> + va_start(va, fmt);
>> + ret = nbd_opt_vdrop(client, type, errp, fmt, va);
>> + va_end(va);
>> +
>> + return ret;
>> +}
>> +
>> +static int GCC_FMT_ATTR(3, 4)
>> +nbd_opt_invalid(NBDClient *client, Error **errp, const char *fmt, ...)
>
> No documentation comments?
>
the function is obvious and is near to nbd_opt_vdrop.. do we really want
a comment? And, then, what about seprate comment for nbd_opt_drop?
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part
2018-02-16 13:21 ` Eric Blake
2018-02-16 14:43 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-02 15:07 ` Vladimir Sementsov-Ogievskiy
1 sibling, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-02 15:07 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 16:21, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
>
[...]
>> + meta = &local_meta;
>> + }
>> +
>> + memset(meta, 0, sizeof(*meta));
>> +
>> + ret = nbd_read_size_string(client, meta->export_name,
>> + NBD_MAX_NAME_SIZE, errp);
>
> Revisiting a question I raised in my first half review - you saved the
> name as part of the struct because we have to later compare that the
> final OPT_SET export name matches the request during OPT_GO (if they
> don't match, then we have no contexts to serve after all). So a
> 'const char *' won't work, but maybe the struct could use a 'char *'
> pointing to malloc'd storage rather than char[MAX_NAME] that reserves
> array space that is mostly unused for the typical name that is much
> shorter than the maximum name length.
Do these 256 bytes worth creating nbd_clear_meta function, to call it
from client_put and on NBD_OPT_SET_META_CONTEXT, to clear previous meta?
If yes, I'd prefer to postpone it to continuation about BLOCKSTATUS for
dirty bitmaps, when I'll have to upgrade meta structure, to maintain
dirty bitmaps.
>
>> + if (ret <= 0) {
>> + return ret;
>> + }
>> +
>> + exp = nbd_export_find(meta->export_name);
>> + if (exp == NULL) {
>> + return nbd_opt_invalid(client, errp,
>> + "export '%s' not present",
>> meta->export_name);
>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-16 20:40 ` Eric Blake
@ 2018-03-09 18:47 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:06 ` Vladimir Sementsov-Ogievskiy
` (3 subsequent siblings)
4 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-09 18:47 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:40, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
[...]
>> + memcpy(extent, payload, sizeof(*extent));
>> + be32_to_cpus(&extent->length);
>> + be32_to_cpus(&extent->flags);
>
> Instead of doing a memcpy() and then in-place bit-swizzling, you could
> do the swapping as part of assignment, for one less function call (and
> make the code a bit easier to extend, if we later drop our REQ_ONE
> limitation on only having one extent, because you'll advance payload
> as needed):
>
> extent->length = payload_advance32(&payload);
> extent->flags = payload_advance32(&payload);
Aha, yes. The funny thing is that these are my own helpers.
>
> We should probably validate that the length field is a multiple of
> min_block (if a server tells us that all operations must be 512-byte
> aligned, then reports an extent that is smaller than 512 bytes, we
> have no way to ask for the status of the second half of the sector).
> Probably also something that needs to be explicitly stated in the NBD
> spec. [1]
>
>> +
>> + if (extent->length > orig_length) {
>> + error_setg(errp, "Protocol error: server sent chunk
>> exceeding requested"
>> + " region");
>> + return -EINVAL;
>
> That matches the current spec wording, but I'm not sure I agree with
> it - what's wrong with a server providing a final extent that extends
> beyond the request, if the information was already available for free
> (the classic example: if the server never replies with HOLE or ZERO,
> then the entire file has the same status, so all requests could
> trivially be replied to by taking the starting offset to the end of
> the file as the returned length, rather than just clamping at the
> requested length).
Maybe. But our already released clients not prepared to such change =(
But, on the other hand, this gives us possibility to understand, the the
whole target (for backup/mirror) is zero in one request, skipping
target-zeroing loop by 4gb chunks.. What about adding such possibility
with an additionally negotiated option or something like this? (and
don't we now have same possibility with something like INFO?)
>
>> + }
>> +
>> + return 0;
>> +}
>> +
>> /* nbd_parse_error_payload
>> * on success @errp contains message describing nbd error reply
>> */
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up
2018-02-16 20:44 ` Eric Blake
@ 2018-03-09 18:54 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-09 18:54 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:44, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>> tests/qemu-iotests/iotests.py | 5 +++--
>> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> What breaks if they aren't moved? But stylistically, this looks
> reasonable; and can be merged independently of NBD stuff if someone
> else wants.
This movement also make it a bit nearer to PEP8, as it dislike "E402
module level import not at top of file", because of "sys.path.append"
before imports.. So, I'd just saved as many imports as I could)
>
> Reviewed-by: Eric Blake <eblake@redhat.com>
>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
` (12 preceding siblings ...)
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches Eric Blake
@ 2018-03-09 19:08 ` Eric Blake
2018-03-09 19:28 ` Vladimir Sementsov-Ogievskiy
13 siblings, 1 reply; 50+ messages in thread
From: Eric Blake @ 2018-03-09 19:08 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
> Hi all.
>
> Here is minimal realization of base:allocation context of NBD
> block-status extension, which allows to get block status through
> NBD.
>
> Vladimir Sementsov-Ogievskiy (9):
> nbd/server: add nbd_opt_invalid helper
> nbd: change indenting in nbd.h
> nbd: BLOCK_STATUS for standard get_block_status function: server part
> block/nbd-client: save first fatal error in nbd_iter_error
> nbd/client: fix error messages in nbd_handle_reply_err
> nbd: BLOCK_STATUS for standard get_block_status function: client part
> iotests.py: tiny refactor: move system imports up
> iotests: add file_path helper
> iotests: new test 206 for NBD BLOCK_STATUS
I'd really like to send a PULL request for NBD on Monday, in order to
make the 2.12 softfreeze deadline (this is a new feature, so if we miss
Tuesday, we have to wait until 2.13 or whatever the next release is
called). Where do you stand on rebasing this, and what help can I
offer? (I know you have factored out some of the patches in another
thread that I'm in the middle of reviewing as well; you can submit the
later patches even before the earlier ones land, and use a 'Based-on:'
tag in the cover letter to make it obvious the dependencies between series).
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 0/9] nbd block status base:allocation
2018-03-09 19:08 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Eric Blake
@ 2018-03-09 19:28 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-09 19:28 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
09.03.2018 22:08, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Hi all.
>>
>> Here is minimal realization of base:allocation context of NBD
>> block-status extension, which allows to get block status through
>> NBD.
>>
>> Vladimir Sementsov-Ogievskiy (9):
>> nbd/server: add nbd_opt_invalid helper
>> nbd: change indenting in nbd.h
>> nbd: BLOCK_STATUS for standard get_block_status function: server part
>> block/nbd-client: save first fatal error in nbd_iter_error
>> nbd/client: fix error messages in nbd_handle_reply_err
>> nbd: BLOCK_STATUS for standard get_block_status function: client part
>> iotests.py: tiny refactor: move system imports up
>> iotests: add file_path helper
>> iotests: new test 206 for NBD BLOCK_STATUS
>
> I'd really like to send a PULL request for NBD on Monday, in order to
> make the 2.12 softfreeze deadline (this is a new feature, so if we
> miss Tuesday, we have to wait until 2.13 or whatever the next release
> is called). Where do you stand on rebasing this, and what help can I
> offer? (I know you have factored out some of the patches in another
> thread that I'm in the middle of reviewing as well; you can submit the
> later patches even before the earlier ones land, and use a 'Based-on:'
> tag in the cover letter to make it obvious the dependencies between
> series).
>
I'm now at start of "Re: [PATCH 6/9] nbd: BLOCK_STATUS for standard
get_block_status function: client part", and I think rebasing on
byte-based is too much for me for that moment (10:20 pm =). I'll do my
best on Monday morning as early as I can.
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-16 20:40 ` Eric Blake
2018-03-09 18:47 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-12 9:06 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:23 ` Vladimir Sementsov-Ogievskiy
` (2 subsequent siblings)
4 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-12 9:06 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:40, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
>>
>> Tests 140, 147 and 205 are fixed due to now server failed on searching
>> export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
[...]
>> +
>> static int nbd_co_request(BlockDriverState *bs, NBDRequest *request,
>> QEMUIOVector *write_qiov)
>> {
>> @@ -784,6 +878,50 @@ int nbd_client_co_pdiscard(BlockDriverState *bs,
>> int64_t offset, int bytes)
>> return nbd_co_request(bs, &request, NULL);
>> }
>> +int64_t coroutine_fn
>> nbd_client_co_get_block_status(BlockDriverState *bs,
>> + int64_t sector_num,
>> + int nb_sectors,
>> int *pnum,
>> + BlockDriverState **file)
>
> Needs rebasing on top of Kevin's block branch to use the byte-based
> interface. I also need to finish up my promised followups on that
> series, as NBD (and other protocol drivers) should have consistent
> behavior on what it means to report OFFSET_VALID (or whether that
> should be limited to just format/filter drivers).
Looks like it's already in master, so I should just rebase on master.--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-16 20:40 ` Eric Blake
2018-03-09 18:47 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:06 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-12 9:23 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:48 ` Vladimir Sementsov-Ogievskiy
2018-03-12 13:13 ` Vladimir Sementsov-Ogievskiy
4 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-12 9:23 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:40, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
>>
>> Tests 140, 147 and 205 are fixed due to now server failed on searching
>> export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
[...]
>
>> +++ b/nbd/client.c
>> @@ -594,6 +594,108 @@ static QIOChannel
>> *nbd_receive_starttls(QIOChannel *ioc,
>> return QIO_CHANNEL(tioc);
>> }
>> +/* nbd_negotiate_simple_meta_context:
>> + * Set one meta context. Simple means that reply must contain zero (not
>> + * negotiated) or one (negotiated) contexts. More contexts would be
>> considered
>> + * as a protocol error.
>> + * return 1 for successful negotiation, context_id is set
>> + * 0 if operation is unsupported,
>> + * -errno with errp set for any other error
>> + */
>
> Good enough for our first use. Will obviously need improvements if we
> support base:allocation AND dirty bitmap exposure at the same time, in
> future patches ;)
>
>> +static int nbd_negotiate_simple_meta_context(QIOChannel *ioc,
>> + const char *export,
>> + const char *context,
>> + uint32_t *context_id,
>> + Error **errp)
>> +{
>> + int ret;
>> + NBDOptionReply reply;
>> + uint32_t received_id;
>> + bool received;
>> + size_t export_len = strlen(export);
>> + size_t context_len = strlen(context);
>> + size_t data_len = 4 + export_len + 4 + 4 + context_len;
[...]
> +
>> + if (nbd_read(ioc, &received_id, sizeof(received_id), errp) <
>> 0) {
>> + return -EIO;
>> + }
>> + be32_to_cpus(&received_id);
>> +
>> + len = reply.length - sizeof(received_id);
>> + name = g_malloc(len + 1);
>> + if (nbd_read(ioc, name, len, errp) < 0) {
>> + g_free(name);
>> + return -EIO;
>> + }
>> + name[len] = '\0';
>> + if (strcmp(context, name)) {
>> + error_setg(errp, "Failed to negotiate meta context '%s',
>> server "
>> + "answered with different context '%s'", context,
>> + name);
>
> This check may not be valid for other context namespaces, but is
> correct for "base:allocation".
so, it is negotiation of "simple meta context". I'll improve somehow
comment about the functions...
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-16 20:40 ` Eric Blake
` (2 preceding siblings ...)
2018-03-12 9:23 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-12 9:48 ` Vladimir Sementsov-Ogievskiy
2018-03-12 13:13 ` Vladimir Sementsov-Ogievskiy
4 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-12 9:48 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:40, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
>>
>> Tests 140, 147 and 205 are fixed due to now server failed on searching
>> export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
[...]
>> void nbd_client_detach_aio_context(BlockDriverState *bs)
>> {
>> NBDClientSession *client = nbd_get_client_session(bs);
>> @@ -828,6 +966,7 @@ int nbd_client_init(BlockDriverState *bs,
>> client->info.request_sizes = true;
>> client->info.structured_reply = true;
>> + client->info.base_allocation = true;
>
> Hmm - the combination structured_reply = false and base_allocation =
> true is bogus. Then again, these two fields are in-out; left false
> when handing over to the kernel NBD transmission phase (since the
> kernel module does not yet support structured replies let alone block
> status), and true when requested with qemu as the transmission driver
> (since we want to use it if available). I don't know if having a
> single tri-state enum is any better than two bools (on input, it is
> either all-or-none; on output, it is either none (old server),
> structured reads only (qemu 2.11 server, for example), or all (this
> series' server).
>
ohh, sorry for replying in so many emails.
about this: I'd prefer to leave it as is, and rethink (if needed) when
implementing dirty-bitmaps context, because it's now obvious now, how it
will be refactored for dirty bitmaps.
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 8/9] iotests: add file_path helper
2018-02-20 5:42 ` Jeff Cody
@ 2018-03-12 10:04 ` Vladimir Sementsov-Ogievskiy
0 siblings, 0 replies; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-12 10:04 UTC (permalink / raw)
To: Jeff Cody, Eric Blake
Cc: qemu-devel, qemu-block, kwolf, pbonzini, den, mreitz
20.02.2018 08:42, Jeff Cody wrote:
> On Fri, Feb 16, 2018 at 02:46:35PM -0600, Eric Blake wrote:
>> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>>> Simple way to have auto generated filenames with auto clenup. Like
>> s/clenup/cleanup/
>>
>>> FilePath but without using 'with' statement and without additional
>>> indentation of the whole test.
>>>
>>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>> ---
>>> tests/qemu-iotests/iotests.py | 32 ++++++++++++++++++++++++++++++++
>>> 1 file changed, 32 insertions(+)
>> Jeff, where do we stand on your iotests cleanups? Is this something you
>> want to use?
>>
> This patch has niceties that my patch does not, in that explicit clean-up is
> not required. This is also a slight design difference; my patch series
> explicitly avoided auto-cleanup, so that ./check could handle it, or
> (optionally) leave behind all the mouse droppings for later analysis, in the
> case of test failure.
>
> Ideally, I'd love clean-up to be optional; if a test fails, I'd like to have
> the option of examining all the intermediate files and output of the test
> (and once it resides in its own subdir, that is also side-affect free for
> the other tests).
Hmm. Now I think explicit clean-up (by ./chek, not by test) is better,
at least for
just removing any files in TEST_DIR. Now it's often a problem to save
test outputs
to debug it, and generic way to do it is good idea.. However, it may be
cool to combine
both variants (so that, file_path will understand the option form Jeff's
patches).
Anyway, for now I left this patch as is.
>
>>> diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
>>> index c1302a2f9b..f2d05ca3fd 100644
>>> --- a/tests/qemu-iotests/iotests.py
>>> +++ b/tests/qemu-iotests/iotests.py
>>> @@ -27,6 +27,7 @@ import struct
>>> import json
>>> import signal
>>> import logging
>>> +import atexit
>>> sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..', 'scripts'))
>>> import qtest
>>> @@ -250,6 +251,37 @@ class FilePath(object):
>>> return False
>>> +def file_path_remover():
>>> + for path in reversed(file_path_remover.paths):
>>> + try:
>>> + os.remove(path)
>>> + except OSError:
>>> + pass
>>> +
>>> +
>>> +def file_path(*names):
>>> + ''' Another way to get auto-generated filename that cleans itself up.
>>> +
>>> + Use it as simple as:
>>> +
>>> + img_a, img_b = file_path('a.img', 'b.img')
>>> + sock = file_path('socket')
>>> + '''
>>> +
>>> + if not hasattr(file_path_remover, 'paths'):
>>> + file_path_remover.paths = []
>>> + atexit.register(file_path_remover)
>>> +
>>> + paths = []
>>> + for name in names:
>>> + filename = '{0}-{1}'.format(os.getpid(), name)
>>> + path = os.path.join(test_dir, filename)
>>> + file_path_remover.paths.append(path)
>>> + paths.append(path)
>>> +
>>> + return paths[0] if len(paths) == 1 else paths
>>> +
>>> +
>>> class VM(qtest.QEMUQtestMachine):
>>> '''A QEMU VM'''
>>>
>> --
>> Eric Blake, Principal Software Engineer
>> Red Hat, Inc. +1-919-301-3266
>> Virtualization: qemu.org | libvirt.org
>>
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-02-16 20:40 ` Eric Blake
` (3 preceding siblings ...)
2018-03-12 9:48 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-12 13:13 ` Vladimir Sementsov-Ogievskiy
2018-03-12 14:00 ` Eric Blake
4 siblings, 1 reply; 50+ messages in thread
From: Vladimir Sementsov-Ogievskiy @ 2018-03-12 13:13 UTC (permalink / raw)
To: Eric Blake, qemu-devel, qemu-block; +Cc: mreitz, kwolf, pbonzini, den
16.02.2018 23:40, Eric Blake wrote:
> On 02/15/2018 07:51 AM, Vladimir Sementsov-Ogievskiy wrote:
>> Minimal realization: only one extent in server answer is supported.
>> Flag NBD_CMD_FLAG_REQ_ONE is used to force this behavior.
>>
>> Tests 140, 147 and 205 are fixed due to now server failed on searching
>> export in context of NBD_OPT_SET_META_CONTEXT option negotiation.
>>
>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>> ---
>
[...]
> Instead of doing a memcpy() and then in-place bit-swizzling, you could
> do the swapping as part of assignment, for one less function call (and
> make the code a bit easier to extend, if we later drop our REQ_ONE
> limitation on only having one extent, because you'll advance payload
> as needed):
>
> extent->length = payload_advance32(&payload);
> extent->flags = payload_advance32(&payload);
>
> We should probably validate that the length field is a multiple of
> min_block (if a server tells us that all operations must be 512-byte
> aligned, then reports an extent that is smaller than 512 bytes, we
> have no way to ask for the status of the second half of the sector).
> Probably also something that needs to be explicitly stated in the NBD
> spec. [1]
related question: what server should reply on zero-length request? I'll add
+ if (!bytes) {
+ *pnum = 0;
+ return 0;
+ }
to nbd_client_co_block_status, to prevent such situation, but looks like
spec lacks the information.
--
Best regards,
Vladimir
^ permalink raw reply [flat|nested] 50+ messages in thread
* Re: [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part
2018-03-12 13:13 ` Vladimir Sementsov-Ogievskiy
@ 2018-03-12 14:00 ` Eric Blake
0 siblings, 0 replies; 50+ messages in thread
From: Eric Blake @ 2018-03-12 14:00 UTC (permalink / raw)
To: Vladimir Sementsov-Ogievskiy, qemu-devel, qemu-block
Cc: mreitz, kwolf, pbonzini, den
On 03/12/2018 08:13 AM, Vladimir Sementsov-Ogievskiy wrote:
>>
>> We should probably validate that the length field is a multiple of
>> min_block (if a server tells us that all operations must be 512-byte
>> aligned, then reports an extent that is smaller than 512 bytes, we
>> have no way to ask for the status of the second half of the sector).
>> Probably also something that needs to be explicitly stated in the NBD
>> spec. [1]
>
> related question: what server should reply on zero-length request? I'll add
>
> + if (!bytes) {
> + *pnum = 0;
> + return 0;
> + }
>
> to nbd_client_co_block_status, to prevent such situation, but looks like
> spec lacks the information.
nbd.git commit ee926037 mentions that NBD_CMD_READ, _WRITE, _TRIM, and
_WRITE_ZEROES have unspecified behavior for zero-length transactions; we
should do the same for NBD_CMD_BLOCK_STATUS. But in the meantime,
handling it gracefully with a no-op reply (the way qemu.git commit
ef8c887e handles 0-length structured read) is fine.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
^ permalink raw reply [flat|nested] 50+ messages in thread
end of thread, other threads:[~2018-03-12 14:00 UTC | newest]
Thread overview: 50+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-02-15 13:51 [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 1/9] nbd/server: add nbd_opt_invalid helper Vladimir Sementsov-Ogievskiy
2018-02-15 22:01 ` Eric Blake
2018-03-02 12:40 ` Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 2/9] nbd: change indenting in nbd.h Vladimir Sementsov-Ogievskiy
2018-02-15 22:03 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 3/9] nbd: BLOCK_STATUS for standard get_block_status function: server part Vladimir Sementsov-Ogievskiy
2018-02-15 23:02 ` Eric Blake
2018-02-16 11:09 ` Vladimir Sementsov-Ogievskiy
2018-02-16 11:45 ` Eric Blake
2018-02-16 13:21 ` Eric Blake
2018-02-16 14:43 ` Vladimir Sementsov-Ogievskiy
2018-02-16 17:01 ` Eric Blake
2018-03-01 11:36 ` Vladimir Sementsov-Ogievskiy
2018-03-02 15:07 ` Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 4/9] block/nbd-client: save first fatal error in nbd_iter_error Vladimir Sementsov-Ogievskiy
2018-02-16 17:35 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 5/9] nbd/client: fix error messages in nbd_handle_reply_err Vladimir Sementsov-Ogievskiy
2018-02-16 17:38 ` Eric Blake
2018-03-01 11:38 ` Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 6/9] nbd: BLOCK_STATUS for standard get_block_status function: client part Vladimir Sementsov-Ogievskiy
2018-02-16 20:40 ` Eric Blake
2018-03-09 18:47 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:06 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:23 ` Vladimir Sementsov-Ogievskiy
2018-03-12 9:48 ` Vladimir Sementsov-Ogievskiy
2018-03-12 13:13 ` Vladimir Sementsov-Ogievskiy
2018-03-12 14:00 ` Eric Blake
2018-02-15 13:51 ` [Qemu-devel] [PATCH 7/9] iotests.py: tiny refactor: move system imports up Vladimir Sementsov-Ogievskiy
2018-02-16 20:44 ` Eric Blake
2018-03-09 18:54 ` Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 8/9] iotests: add file_path helper Vladimir Sementsov-Ogievskiy
2018-02-16 20:46 ` Eric Blake
2018-02-20 5:42 ` Jeff Cody
2018-03-12 10:04 ` Vladimir Sementsov-Ogievskiy
2018-02-15 13:51 ` [Qemu-devel] [PATCH 9/9] iotests: new test 206 for NBD BLOCK_STATUS Vladimir Sementsov-Ogievskiy
2018-02-16 21:02 ` Eric Blake
2018-03-01 11:51 ` Vladimir Sementsov-Ogievskiy
2018-03-01 18:23 ` Eric Blake
2018-02-22 19:30 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation no-reply
2018-02-23 14:02 ` no-reply
2018-02-24 6:48 ` no-reply
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 0/2] nbd block status initial patches Eric Blake
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 1/2] nbd: BLOCK_STATUS constants Eric Blake
2018-03-01 12:06 ` Vladimir Sementsov-Ogievskiy
2018-02-26 16:57 ` [Qemu-devel] [PATCH v2 2/2] nbd/client: fix error messages in nbd_handle_reply_err Eric Blake
2018-03-01 12:10 ` Vladimir Sementsov-Ogievskiy
2018-03-01 18:25 ` Eric Blake
2018-03-09 19:08 ` [Qemu-devel] [PATCH 0/9] nbd block status base:allocation Eric Blake
2018-03-09 19:28 ` Vladimir Sementsov-Ogievskiy
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