* Error writing to nfs4 with 3.11-rc1
@ 2013-07-17 18:55 Andre Heider
2013-07-17 19:10 ` Chuck Lever
0 siblings, 1 reply; 11+ messages in thread
From: Andre Heider @ 2013-07-17 18:55 UTC (permalink / raw)
To: linux-nfs
Hi,
I'm having problems using 3.11-rc1 as nfs4 client (with a FreeBSD 9.1
server) using sec=sys.
With the same server+client setup, just booting different kernels:
3.9.10 works without issues
3.10.1 works too, but introduced "RPC: AUTH_GSS upcall timed out." in
dmesg (iirc I don't need gss with sec=sys)
3.11-rc1 reading from the server still works, writing fails
Even a simple touch on the share fails with:
touch: cannot touch ‘/mnt/andre/test’: Input/output error
mount output of the share in question:
192.168.0.1:/home/andre on /mnt/andre type nfs4
(rw,nosuid,relatime,vers=4.0,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.0.40,local_lock=none,addr=192.168.0.1)
The 3.11 .config was cp'ed from 3.10.1 and updated via `make
oldconfig`. Toggling the 3.11 nfs4.2 kernel options doesn't seem to
make a difference.
Any ideas?
Thanks,
Andre
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 18:55 Error writing to nfs4 with 3.11-rc1 Andre Heider
@ 2013-07-17 19:10 ` Chuck Lever
2013-07-17 19:35 ` Andre Heider
0 siblings, 1 reply; 11+ messages in thread
From: Chuck Lever @ 2013-07-17 19:10 UTC (permalink / raw)
To: Andre Heider; +Cc: linux-nfs
On Jul 17, 2013, at 2:55 PM, Andre Heider <a.heider@gmail.com> wrote:
> Hi,
>
> I'm having problems using 3.11-rc1 as nfs4 client (with a FreeBSD 9.1
> server) using sec=sys.
>
> With the same server+client setup, just booting different kernels:
> 3.9.10 works without issues
> 3.10.1 works too, but introduced "RPC: AUTH_GSS upcall timed out." in
> dmesg (iirc I don't need gss with sec=sys)
Not a requirement, but running gssd should make that message go away. The client is attempting to use krb5i to manage its lease on the server, and falling back to AUTH_UNIX when it sees gssd is not running.
> 3.11-rc1 reading from the server still works, writing fails
>
> Even a simple touch on the share fails with:
> touch: cannot touch ‘/mnt/andre/test’: Input/output error
A network capture is a reasonable place to start.
# tcpdump -s0 -w /tmp/raw
Then try your touch test again. Stop the tcpdump. You can post a compressed version of the raw dump here if it's short.
> mount output of the share in question:
> 192.168.0.1:/home/andre on /mnt/andre type nfs4
> (rw,nosuid,relatime,vers=4.0,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.0.40,local_lock=none,addr=192.168.0.1)
>
> The 3.11 .config was cp'ed from 3.10.1 and updated via `make
> oldconfig`. Toggling the 3.11 nfs4.2 kernel options doesn't seem to
> make a difference.
--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 19:10 ` Chuck Lever
@ 2013-07-17 19:35 ` Andre Heider
2013-07-17 20:54 ` Chuck Lever
2013-07-17 21:59 ` Myklebust, Trond
0 siblings, 2 replies; 11+ messages in thread
From: Andre Heider @ 2013-07-17 19:35 UTC (permalink / raw)
To: Chuck Lever; +Cc: linux-nfs
[-- Attachment #1: Type: text/plain, Size: 1213 bytes --]
On Wed, Jul 17, 2013 at 9:10 PM, Chuck Lever <chuck.lever@oracle.com> wrote:
>
> On Jul 17, 2013, at 2:55 PM, Andre Heider <a.heider@gmail.com> wrote:
>
>> Hi,
>>
>> I'm having problems using 3.11-rc1 as nfs4 client (with a FreeBSD 9.1
>> server) using sec=sys.
>>
>> With the same server+client setup, just booting different kernels:
>> 3.9.10 works without issues
>> 3.10.1 works too, but introduced "RPC: AUTH_GSS upcall timed out." in
>> dmesg (iirc I don't need gss with sec=sys)
>
> Not a requirement, but running gssd should make that message go away. The client is attempting to use krb5i to manage its lease on the server, and falling back to AUTH_UNIX when it sees gssd is not running.
>
>> 3.11-rc1 reading from the server still works, writing fails
>>
>> Even a simple touch on the share fails with:
>> touch: cannot touch ‘/mnt/andre/test’: Input/output error
>
> A network capture is a reasonable place to start.
>
> # tcpdump -s0 -w /tmp/raw
>
> Then try your touch test again. Stop the tcpdump. You can post a compressed version of the raw dump here if it's short.
Attached two dumps, one from 3.10 (works) and one from 3.11 (doesn't work).
Thanks,
Andre
[-- Attachment #2: dump.tar.xz --]
[-- Type: application/octet-stream, Size: 1020 bytes --]
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 19:35 ` Andre Heider
@ 2013-07-17 20:54 ` Chuck Lever
2013-07-19 16:13 ` J. Bruce Fields
2013-07-17 21:59 ` Myklebust, Trond
1 sibling, 1 reply; 11+ messages in thread
From: Chuck Lever @ 2013-07-17 20:54 UTC (permalink / raw)
To: Andre Heider, Rick Macklem; +Cc: linux-nfs
On Jul 17, 2013, at 3:35 PM, Andre Heider <a.heider@gmail.com> wrote:
> On Wed, Jul 17, 2013 at 9:10 PM, Chuck Lever <chuck.lever@oracle.com> wrote:
>>
>> On Jul 17, 2013, at 2:55 PM, Andre Heider <a.heider@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I'm having problems using 3.11-rc1 as nfs4 client (with a FreeBSD 9.1
>>> server) using sec=sys.
>>>
>>> With the same server+client setup, just booting different kernels:
>>> 3.9.10 works without issues
>>> 3.10.1 works too, but introduced "RPC: AUTH_GSS upcall timed out." in
>>> dmesg (iirc I don't need gss with sec=sys)
>>
>> Not a requirement, but running gssd should make that message go away. The client is attempting to use krb5i to manage its lease on the server, and falling back to AUTH_UNIX when it sees gssd is not running.
>>
>>> 3.11-rc1 reading from the server still works, writing fails
>>>
>>> Even a simple touch on the share fails with:
>>> touch: cannot touch ‘/mnt/andre/test’: Input/output error
>>
>> A network capture is a reasonable place to start.
>>
>> # tcpdump -s0 -w /tmp/raw
>>
>> Then try your touch test again. Stop the tcpdump. You can post a compressed version of the raw dump here if it's short.
>
> Attached two dumps, one from 3.10 (works) and one from 3.11 (doesn't work).
Commit a09df2ca "NFSv4: Extend fattr bitmaps to support all 3 words", introduced in 3.11-rc1, changes the Linux OPEN operation to send a 3-word bitmask for the fattr4 data type. This was done to support NFSv4 minor version 2, which adds bits in the 3rd word.
Apparently FreeBSD servers support only 2-word fattr4 bitmasks...?
RFC 3530 defines the bitmask4 type as a variable length array of uint32_t. The minor versioning rules in 3530bis Chapter 11 say:
• Minor versions may append attributes to the bitmap4 that
represents sets of attributes and to the fattr4 that
represents sets of attribute values.
I don't see any other limit placed on the size of the fattr4's bitmask array in RFC 3530, other than the number of bits that are defined for fattr4. But I didn't look carefully.
By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 20:54 ` Chuck Lever
@ 2013-07-19 16:13 ` J. Bruce Fields
2013-07-19 16:33 ` Chuck Lever
0 siblings, 1 reply; 11+ messages in thread
From: J. Bruce Fields @ 2013-07-19 16:13 UTC (permalink / raw)
To: Chuck Lever; +Cc: Andre Heider, Rick Macklem, linux-nfs
On Wed, Jul 17, 2013 at 04:54:59PM -0400, Chuck Lever wrote:
> By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
What exactly is screwed up?
For what it's worth, I took a quick look at the 3.11 trace with the
latest head from http://code.wireshark.org/git/wireshark and nothing
jumped out at me.
--b.
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-19 16:13 ` J. Bruce Fields
@ 2013-07-19 16:33 ` Chuck Lever
2013-07-19 17:55 ` J. Bruce Fields
0 siblings, 1 reply; 11+ messages in thread
From: Chuck Lever @ 2013-07-19 16:33 UTC (permalink / raw)
To: J. Bruce Fields; +Cc: Andre Heider, Rick Macklem, linux-nfs
On Jul 19, 2013, at 12:13 PM, "J. Bruce Fields" <bfields@fieldses.org> wrote:
> On Wed, Jul 17, 2013 at 04:54:59PM -0400, Chuck Lever wrote:
>> By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
>
> What exactly is screwed up?
For example, if you undisclose all of the parsed elements of an OPEN reply, the parsing of the XDR is wrong and the following replies in the compound become unparsable "data".
I've reproduced this for every installation of 1.10.0, Linux and Mac OS, that I've done.
I'm looking at a trace where the client sends an unchecked create OPEN via this compound:
PUTFH, OPEN, GETFH, ACCESS, GETATTR
And here is the reply, as parsed by Wireshark. The replies after the OPEN are rendered as 216 bytes of unparsed "data". The Delegation Type is 2950154659. fattr4_mode looks wrong as well, the requested mode was 644.
Close examination of the actual bytes in this reply shows that the reply sent by the server was correct XDR and a plausible result, and the client continues normal and correct operation.
Network File System, Ops(5): PUTFH OPEN
[Program Version: 4]
[V4 Procedure: COMPOUND (1)]
Status: NFS4_OK (0)
Tag: <EMPTY>
length: 0
contents: <EMPTY>
Operations (count: 5)
Opcode: PUTFH (22)
Status: NFS4_OK (0)
Opcode: OPEN (18)
Status: NFS4_OK (0)
stateid
[StateID Hash: 0xaf36]
seqid: 0x00000001
Data: 01db0fb0ac64000000000000
change_info
Atomic: Yes
changeid (before): 5901652787232948527
changeid (after): 5901653255478300828
results_flags: Unknown (0x00000006)
.... .... .... .... .... .... .... ...0 = mlock: Unknown (0)
.... .... .... .... .... .... .... ..1. = confirm: OPEN4_RESULT_MLOCK (1)
Attr mask[0]: 0x00000010 (SIZE)
reqd_attr: SIZE (4)
size: 42949672960
Attr mask[1]: 0x00000002 (MODE)
reco_attr: MODE (33)
fattr4_mode: 044
.... .... .... .... 000. .... .... .... = Name: Unknown (0)
.... .... .... .... .... 0... .... .... = Set user id on exec: No
.... .... .... .... .... .0.. .... .... = Set group id on exec: No
.... .... .... .... .... ..0. .... .... = Save swapped text even after use: No
.... .... .... .... .... ...0 .... .... = Read permission for owner: No
.... .... .... .... .... .... 0... .... = Write permission for owner: No
.... .... .... .... .... .... .0.. .... = Execute permission for owner: No
.... .... .... .... .... .... ..1. .... = Read permission for group: Yes
.... .... .... .... .... .... ...0 .... = Write permission for group: No
.... .... .... .... .... .... .... 0... = Execute permission for group: No
.... .... .... .... .... .... .... .1.. = Read permission for others: Yes
.... .... .... .... .... .... .... ..0. = Write permission for others: No
.... .... .... .... .... .... .... ...0 = Execute permission for others: No
Delegation Type: Unknown (2950154659)
[Main Opcode: OPEN (18)]
Data (216 bytes)
--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
^ permalink raw reply [flat|nested] 11+ messages in thread* Re: Error writing to nfs4 with 3.11-rc1
2013-07-19 16:33 ` Chuck Lever
@ 2013-07-19 17:55 ` J. Bruce Fields
2013-07-19 18:03 ` Chuck Lever
2013-07-24 14:26 ` J. Bruce Fields
0 siblings, 2 replies; 11+ messages in thread
From: J. Bruce Fields @ 2013-07-19 17:55 UTC (permalink / raw)
To: Chuck Lever; +Cc: Andre Heider, Rick Macklem, linux-nfs
On Fri, Jul 19, 2013 at 12:33:11PM -0400, Chuck Lever wrote:
>
> On Jul 19, 2013, at 12:13 PM, "J. Bruce Fields" <bfields@fieldses.org> wrote:
>
> > On Wed, Jul 17, 2013 at 04:54:59PM -0400, Chuck Lever wrote:
> >> By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
> >
> > What exactly is screwed up?
>
> For example, if you undisclose all of the parsed elements of an OPEN reply, the parsing of the XDR is wrong and the following replies in the compound become unparsable "data".
>
> I've reproduced this for every installation of 1.10.0, Linux and Mac OS, that I've done.
>
> I'm looking at a trace where the client sends an unchecked create OPEN via this compound:
>
> PUTFH, OPEN, GETFH, ACCESS, GETATTR
>
> And here is the reply, as parsed by Wireshark. The replies after the OPEN are rendered as 216 bytes of unparsed "data". The Delegation Type is 2950154659. fattr4_mode looks wrong as well, the requested mode was 644.
>
> Close examination of the actual bytes in this reply shows that the reply sent by the server was correct XDR and a plausible result, and the client continues normal and correct operation.
Hm, that might be:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8920
?
--b.
>
> Network File System, Ops(5): PUTFH OPEN
> [Program Version: 4]
> [V4 Procedure: COMPOUND (1)]
> Status: NFS4_OK (0)
> Tag: <EMPTY>
> length: 0
> contents: <EMPTY>
> Operations (count: 5)
> Opcode: PUTFH (22)
> Status: NFS4_OK (0)
> Opcode: OPEN (18)
> Status: NFS4_OK (0)
> stateid
> [StateID Hash: 0xaf36]
> seqid: 0x00000001
> Data: 01db0fb0ac64000000000000
> change_info
> Atomic: Yes
> changeid (before): 5901652787232948527
> changeid (after): 5901653255478300828
> results_flags: Unknown (0x00000006)
> .... .... .... .... .... .... .... ...0 = mlock: Unknown (0)
> .... .... .... .... .... .... .... ..1. = confirm: OPEN4_RESULT_MLOCK (1)
> Attr mask[0]: 0x00000010 (SIZE)
> reqd_attr: SIZE (4)
> size: 42949672960
> Attr mask[1]: 0x00000002 (MODE)
> reco_attr: MODE (33)
> fattr4_mode: 044
> .... .... .... .... 000. .... .... .... = Name: Unknown (0)
> .... .... .... .... .... 0... .... .... = Set user id on exec: No
> .... .... .... .... .... .0.. .... .... = Set group id on exec: No
> .... .... .... .... .... ..0. .... .... = Save swapped text even after use: No
> .... .... .... .... .... ...0 .... .... = Read permission for owner: No
> .... .... .... .... .... .... 0... .... = Write permission for owner: No
> .... .... .... .... .... .... .0.. .... = Execute permission for owner: No
> .... .... .... .... .... .... ..1. .... = Read permission for group: Yes
> .... .... .... .... .... .... ...0 .... = Write permission for group: No
> .... .... .... .... .... .... .... 0... = Execute permission for group: No
> .... .... .... .... .... .... .... .1.. = Read permission for others: Yes
> .... .... .... .... .... .... .... ..0. = Write permission for others: No
> .... .... .... .... .... .... .... ...0 = Execute permission for others: No
> Delegation Type: Unknown (2950154659)
> [Main Opcode: OPEN (18)]
> Data (216 bytes)
>
> --
> Chuck Lever
> chuck[dot]lever[at]oracle[dot]com
>
>
>
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-19 17:55 ` J. Bruce Fields
@ 2013-07-19 18:03 ` Chuck Lever
2013-07-24 14:26 ` J. Bruce Fields
1 sibling, 0 replies; 11+ messages in thread
From: Chuck Lever @ 2013-07-19 18:03 UTC (permalink / raw)
To: J. Bruce Fields; +Cc: Andre Heider, Rick Macklem, linux-nfs
On Jul 19, 2013, at 1:55 PM, "J. Bruce Fields" <bfields@fieldses.org> wrote:
> On Fri, Jul 19, 2013 at 12:33:11PM -0400, Chuck Lever wrote:
>>
>> On Jul 19, 2013, at 12:13 PM, "J. Bruce Fields" <bfields@fieldses.org> wrote:
>>
>>> On Wed, Jul 17, 2013 at 04:54:59PM -0400, Chuck Lever wrote:
>>>> By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
>>>
>>> What exactly is screwed up?
>>
>> For example, if you undisclose all of the parsed elements of an OPEN reply, the parsing of the XDR is wrong and the following replies in the compound become unparsable "data".
>>
>> I've reproduced this for every installation of 1.10.0, Linux and Mac OS, that I've done.
>>
>> I'm looking at a trace where the client sends an unchecked create OPEN via this compound:
>>
>> PUTFH, OPEN, GETFH, ACCESS, GETATTR
>>
>> And here is the reply, as parsed by Wireshark. The replies after the OPEN are rendered as 216 bytes of unparsed "data". The Delegation Type is 2950154659. fattr4_mode looks wrong as well, the requested mode was 644.
>>
>> Close examination of the actual bytes in this reply shows that the reply sent by the server was correct XDR and a plausible result, and the client continues normal and correct operation.
>
> Hm, that might be:
>
> https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8920
>
> ?
Wow, that's darn recent. Could be.
> --b.
>
>>
>> Network File System, Ops(5): PUTFH OPEN
>> [Program Version: 4]
>> [V4 Procedure: COMPOUND (1)]
>> Status: NFS4_OK (0)
>> Tag: <EMPTY>
>> length: 0
>> contents: <EMPTY>
>> Operations (count: 5)
>> Opcode: PUTFH (22)
>> Status: NFS4_OK (0)
>> Opcode: OPEN (18)
>> Status: NFS4_OK (0)
>> stateid
>> [StateID Hash: 0xaf36]
>> seqid: 0x00000001
>> Data: 01db0fb0ac64000000000000
>> change_info
>> Atomic: Yes
>> changeid (before): 5901652787232948527
>> changeid (after): 5901653255478300828
>> results_flags: Unknown (0x00000006)
>> .... .... .... .... .... .... .... ...0 = mlock: Unknown (0)
>> .... .... .... .... .... .... .... ..1. = confirm: OPEN4_RESULT_MLOCK (1)
>> Attr mask[0]: 0x00000010 (SIZE)
>> reqd_attr: SIZE (4)
>> size: 42949672960
>> Attr mask[1]: 0x00000002 (MODE)
>> reco_attr: MODE (33)
>> fattr4_mode: 044
>> .... .... .... .... 000. .... .... .... = Name: Unknown (0)
>> .... .... .... .... .... 0... .... .... = Set user id on exec: No
>> .... .... .... .... .... .0.. .... .... = Set group id on exec: No
>> .... .... .... .... .... ..0. .... .... = Save swapped text even after use: No
>> .... .... .... .... .... ...0 .... .... = Read permission for owner: No
>> .... .... .... .... .... .... 0... .... = Write permission for owner: No
>> .... .... .... .... .... .... .0.. .... = Execute permission for owner: No
>> .... .... .... .... .... .... ..1. .... = Read permission for group: Yes
>> .... .... .... .... .... .... ...0 .... = Write permission for group: No
>> .... .... .... .... .... .... .... 0... = Execute permission for group: No
>> .... .... .... .... .... .... .... .1.. = Read permission for others: Yes
>> .... .... .... .... .... .... .... ..0. = Write permission for others: No
>> .... .... .... .... .... .... .... ...0 = Execute permission for others: No
>> Delegation Type: Unknown (2950154659)
>> [Main Opcode: OPEN (18)]
>> Data (216 bytes)
>>
>> --
>> Chuck Lever
>> chuck[dot]lever[at]oracle[dot]com
>>
>>
>>
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-19 17:55 ` J. Bruce Fields
2013-07-19 18:03 ` Chuck Lever
@ 2013-07-24 14:26 ` J. Bruce Fields
1 sibling, 0 replies; 11+ messages in thread
From: J. Bruce Fields @ 2013-07-24 14:26 UTC (permalink / raw)
To: Chuck Lever; +Cc: Andre Heider, Rick Macklem, linux-nfs
On Fri, Jul 19, 2013 at 01:55:35PM -0400, J. Bruce Fields wrote:
> On Fri, Jul 19, 2013 at 12:33:11PM -0400, Chuck Lever wrote:
> >
> > On Jul 19, 2013, at 12:13 PM, "J. Bruce Fields" <bfields@fieldses.org> wrote:
> >
> > > On Wed, Jul 17, 2013 at 04:54:59PM -0400, Chuck Lever wrote:
> > >> By the way, the NFSv4 OPEN request parsing in Wireshark 1.10.0 is totally screwed up. Has anyone reported this to the Wireshark community? Wireshark 1.8.8 appears to parse OPEN requests correctly, and is able to handle the 3-word bitmask correctly.
> > >
> > > What exactly is screwed up?
> >
> > For example, if you undisclose all of the parsed elements of an OPEN reply, the parsing of the XDR is wrong and the following replies in the compound become unparsable "data".
> >
> > I've reproduced this for every installation of 1.10.0, Linux and Mac OS, that I've done.
> >
> > I'm looking at a trace where the client sends an unchecked create OPEN via this compound:
> >
> > PUTFH, OPEN, GETFH, ACCESS, GETATTR
> >
> > And here is the reply, as parsed by Wireshark. The replies after the OPEN are rendered as 216 bytes of unparsed "data". The Delegation Type is 2950154659. fattr4_mode looks wrong as well, the requested mode was 644.
> >
> > Close examination of the actual bytes in this reply shows that the reply sent by the server was correct XDR and a plausible result, and the client continues normal and correct operation.
>
> Hm, that might be:
>
> https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8920
>
> ?
Whoops, should have looked more closely: wireshark was right, the
attribute length was wrong--so probably newer wireshark needs to be
fixed to at least warn.
--b.
>
> --b.
>
> >
> > Network File System, Ops(5): PUTFH OPEN
> > [Program Version: 4]
> > [V4 Procedure: COMPOUND (1)]
> > Status: NFS4_OK (0)
> > Tag: <EMPTY>
> > length: 0
> > contents: <EMPTY>
> > Operations (count: 5)
> > Opcode: PUTFH (22)
> > Status: NFS4_OK (0)
> > Opcode: OPEN (18)
> > Status: NFS4_OK (0)
> > stateid
> > [StateID Hash: 0xaf36]
> > seqid: 0x00000001
> > Data: 01db0fb0ac64000000000000
> > change_info
> > Atomic: Yes
> > changeid (before): 5901652787232948527
> > changeid (after): 5901653255478300828
> > results_flags: Unknown (0x00000006)
> > .... .... .... .... .... .... .... ...0 = mlock: Unknown (0)
> > .... .... .... .... .... .... .... ..1. = confirm: OPEN4_RESULT_MLOCK (1)
> > Attr mask[0]: 0x00000010 (SIZE)
> > reqd_attr: SIZE (4)
> > size: 42949672960
> > Attr mask[1]: 0x00000002 (MODE)
> > reco_attr: MODE (33)
> > fattr4_mode: 044
> > .... .... .... .... 000. .... .... .... = Name: Unknown (0)
> > .... .... .... .... .... 0... .... .... = Set user id on exec: No
> > .... .... .... .... .... .0.. .... .... = Set group id on exec: No
> > .... .... .... .... .... ..0. .... .... = Save swapped text even after use: No
> > .... .... .... .... .... ...0 .... .... = Read permission for owner: No
> > .... .... .... .... .... .... 0... .... = Write permission for owner: No
> > .... .... .... .... .... .... .0.. .... = Execute permission for owner: No
> > .... .... .... .... .... .... ..1. .... = Read permission for group: Yes
> > .... .... .... .... .... .... ...0 .... = Write permission for group: No
> > .... .... .... .... .... .... .... 0... = Execute permission for group: No
> > .... .... .... .... .... .... .... .1.. = Read permission for others: Yes
> > .... .... .... .... .... .... .... ..0. = Write permission for others: No
> > .... .... .... .... .... .... .... ...0 = Execute permission for others: No
> > Delegation Type: Unknown (2950154659)
> > [Main Opcode: OPEN (18)]
> > Data (216 bytes)
> >
> > --
> > Chuck Lever
> > chuck[dot]lever[at]oracle[dot]com
> >
> >
> >
> >
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 19:35 ` Andre Heider
2013-07-17 20:54 ` Chuck Lever
@ 2013-07-17 21:59 ` Myklebust, Trond
2013-07-18 14:57 ` Andre Heider
1 sibling, 1 reply; 11+ messages in thread
From: Myklebust, Trond @ 2013-07-17 21:59 UTC (permalink / raw)
To: Andre Heider; +Cc: Chuck Lever, linux-nfs
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: Error writing to nfs4 with 3.11-rc1
2013-07-17 21:59 ` Myklebust, Trond
@ 2013-07-18 14:57 ` Andre Heider
0 siblings, 0 replies; 11+ messages in thread
From: Andre Heider @ 2013-07-18 14:57 UTC (permalink / raw)
To: Myklebust, Trond; +Cc: Chuck Lever, linux-nfs
On Wed, Jul 17, 2013 at 11:59 PM, Myklebust, Trond
<Trond.Myklebust@netapp.com> wrote:
> On Wed, 2013-07-17 at 21:35 +0200, Andre Heider wrote:
>> On Wed, Jul 17, 2013 at 9:10 PM, Chuck Lever <chuck.lever@oracle.com> wrote:
>> >
>> > On Jul 17, 2013, at 2:55 PM, Andre Heider <a.heider@gmail.com> wrote:
>> >
>> >> Hi,
>> >>
>> >> I'm having problems using 3.11-rc1 as nfs4 client (with a FreeBSD 9.1
>> >> server) using sec=sys.
>> >>
>> >> With the same server+client setup, just booting different kernels:
>> >> 3.9.10 works without issues
>> >> 3.10.1 works too, but introduced "RPC: AUTH_GSS upcall timed out." in
>> >> dmesg (iirc I don't need gss with sec=sys)
>> >
>> > Not a requirement, but running gssd should make that message go away. The client is attempting to use krb5i to manage its lease on the server, and falling back to AUTH_UNIX when it sees gssd is not running.
>> >
>> >> 3.11-rc1 reading from the server still works, writing fails
>> >>
>> >> Even a simple touch on the share fails with:
>> >> touch: cannot touch ‘/mnt/andre/test’: Input/output error
>> >
>> > A network capture is a reasonable place to start.
>> >
>> > # tcpdump -s0 -w /tmp/raw
>> >
>> > Then try your touch test again. Stop the tcpdump. You can post a compressed version of the raw dump here if it's short.
>>
>> Attached two dumps, one from 3.10 (works) and one from 3.11 (doesn't work).
>
> The FreeBSD server is returning NFS4ERR_ATTRNOTSUPP to the OPEN, despite
> the fact that we're requesting the same attributes in both cases. I'll
> bet it is the fact that we send a bitmap of 3 words instead of 2.
>
> This is a problem: the Linux client clearly has the spec on its side,
> and the FreeBSD server is wrong to reject a 3 word bitmap, as long as
> we're not requesting any actual attributes that it doesn't support.
> According to the spec, we could send a bitmap of any length we like.
>
> On the other hand, we have a situation where something used to work, and
> now doesn't. Please check out the 2 patches I just sent out, and see if
> they help.
With these 2 patches, nfsv4 connectivity to a FreeBSD server is working again.
Thanks for the quick patches,
Andre
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2013-07-24 14:26 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-07-17 18:55 Error writing to nfs4 with 3.11-rc1 Andre Heider
2013-07-17 19:10 ` Chuck Lever
2013-07-17 19:35 ` Andre Heider
2013-07-17 20:54 ` Chuck Lever
2013-07-19 16:13 ` J. Bruce Fields
2013-07-19 16:33 ` Chuck Lever
2013-07-19 17:55 ` J. Bruce Fields
2013-07-19 18:03 ` Chuck Lever
2013-07-24 14:26 ` J. Bruce Fields
2013-07-17 21:59 ` Myklebust, Trond
2013-07-18 14:57 ` Andre Heider
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