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From: Bart Van Assche <Bart.VanAssche@sandisk.com>
To: "hch@lst.de" <hch@lst.de>, "axboe@fb.com" <axboe@fb.com>
Cc: "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"snitzer@redhat.com" <snitzer@redhat.com>,
	"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"j-nomura@ce.jp.nec.com" <j-nomura@ce.jp.nec.com>
Subject: Re: split scsi passthrough fields out of struct request V2
Date: Thu, 26 Jan 2017 21:47:36 +0000	[thread overview]
Message-ID: <1485467235.2540.14.camel@sandisk.com> (raw)
In-Reply-To: <6995c991-65a4-8dca-c36e-fb2eff277ca9@fb.com>

On Thu, 2017-01-26 at 14:12 -0700, Jens Axboe wrote:
> On 01/26/2017 02:01 PM, Bart Van Assche wrote:
> > On Thu, 2017-01-26 at 13:54 -0700, Jens Axboe wrote:
> > > Your call path has blk_get_request() in it, I don't have
> > > that in my tree. Is it passing in the right mask?
> > 
> > Hello Jens,
> > 
> > There is only one blk_get_request() call in drivers/md/dm-mpath.c
> > and it looks as follows:
> > 
> >  	clone = blk_get_request(bdev_get_queue(bdev),
> > 			rq->cmd_flags | REQ_NOMERGE,
> > 			GFP_ATOMIC);
> 
> Yeah, I found it in the dm patch. Looks fine to me, since
> blk_mq_alloc_request() checks for __GFP_DIRECT_RECLAIM. Weird, it all
> looks fine to me. Are you sure you tested with the patch? Either that,
> or I'm smoking crack.

Hello Jens,

After I received your e-mail I noticed that there was a local
modification on the test system that was responsible for the schedule-
while-atomic complaint. Sorry for that. Anyway, I undid the merge with
the v4.10-rc5 code and repeated my test. This time the following call
stack appeared:

BUG: unable to handle kernel NULL pointer dereference at 000000000000005c
IP: blk_mq_sched_get_request+0x310/0x350
PGD 34bd9c067 
PUD 346b37067 
PMD 0 

Oops: 0000 [#1] SMP
Modules linked in: dm_service_time ib_srp scsi_transport_srp target_core_user uio target_core_pscsi target_core_file ib_srpt target_core_iblock target_core_mod brd netconsole xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat libcrc32c nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables af_packet ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm configfs ib_cm iw_cm msr mlx4_ib ib_core sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp ipmi_ssif kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul mlx4_core crc32c_intel ghash_clmulni_intel pcbc aesni_intel aes_x86_64 tg3 iTCO_wdt crypto_simd dcdbas iTCO_vendor_support ptp glue_helper ipmi_si cryptd ipmi_devintf pps_core fjes devlink ipmi_msghandler pcspkr libphy tpm_tis tpm_tis_core tpm button mei_me lpc_ich wmi mei mfd_core shpchp hid_generic usbhid mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm sr_mod drm cdrom ehci_pci ehci_hcd usbcore usb_common sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua autofs4
CPU: 0 PID: 9231 Comm: fio Not tainted 4.10.0-rc4-dbg+ #1
Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.0.2 11/17/2014
task: ffff88034c8c3140 task.stack: ffffc90005698000
RIP: 0010:blk_mq_sched_get_request+0x310/0x350
RSP: 0018:ffffc9000569bac8 EFLAGS: 00010246
RAX: ffff88034f430958 RBX: ffff88045ed2cef0 RCX: 0000000000000000
RDX: 000000000000001f RSI: ffff8803507bdcf8 RDI: 000000000000001f
RBP: ffffc9000569bb00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc9000569bb18
R13: 000000000000c801 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f65ca054700(0000) GS:ffff88046f200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000005c CR3: 000000034b0ed000 CR4: 00000000001406f0
Call Trace:
 blk_mq_alloc_request+0x5e/0xb0
 blk_get_request+0x2f/0x110
 multipath_clone_and_map+0xcd/0x140 [dm_multipath]
 map_request+0x3c/0x290 [dm_mod]
 dm_mq_queue_rq+0x77/0x100 [dm_mod]
 blk_mq_dispatch_rq_list+0x1ff/0x320
 blk_mq_sched_dispatch_requests+0xa9/0xe0
 __blk_mq_run_hw_queue+0x122/0x1c0
 blk_mq_run_hw_queue+0x84/0x90
 blk_mq_flush_plug_list+0x39f/0x480
 blk_flush_plug_list+0xee/0x270
 blk_finish_plug+0x27/0x40
 do_io_submit+0x475/0x900
 SyS_io_submit+0xb/0x10
 entry_SYSCALL_64_fastpath+0x18/0xad
RIP: 0033:0x7f65e4d05787
RSP: 002b:00007f65ca051948 EFLAGS: 00000202 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00007f65e4d05787
RDX: 00007f65a404f158 RSI: 0000000000000001 RDI: 00007f65f6bfd000
RBP: 0000000000000815 R08: 0000000000000001 R09: 00007f65a404e3e0
R10: 00007f65a4040000 R11: 0000000000000202 R12: 00000000000006d0
R13: 00007f65a404e930 R14: 0000000000001000 R15: 0000000000000830
Code: 67 ff ff ff e9 80 fe ff ff 48 89 df e8 ba c4 fe ff 31 c9 e9 60 ff ff ff 44 89 ee 4c 89 e7 e8 c8 6d ff ff 48 89 c1 49 8b 44 24 18 <48> 63 51 5c 48 8b 80 20 01 00 00 48 8b 80 80 00 00 00 48 89 0c 
RIP: blk_mq_sched_get_request+0x310/0x350 RSP: ffffc9000569bac8
CR2: 000000000000005c

(gdb) list *(blk_mq_sched_get_request+0x310)
0xffffffff8132dcf0 is in blk_mq_sched_get_request (block/blk-mq-sched.c:136).
131                                     rq->rq_flags |= RQF_QUEUED;
132                     } else
133                             rq = __blk_mq_alloc_request(data, op);
134             } else {
135                     rq = __blk_mq_alloc_request(data, op);
136                     data->hctx->tags->rqs[rq->tag] = rq;
137             }
138
139             if (rq) {
140                     if (!op_is_flush(op)) {

(gdb) disas blk_mq_sched_get_request
[ ... ]
   0xffffffff8132dce3 <+771>:   callq  0xffffffff81324ab0 <__blk_mq_alloc_request>
   0xffffffff8132dce8 <+776>:   mov    %rax,%rcx
   0xffffffff8132dceb <+779>:   mov    0x18(%r12),%rax
   0xffffffff8132dcf0 <+784>:   movslq 0x5c(%rcx),%rdx
[ ... ]
(gdb) print &((struct request *)0)->tag
$1 = (int *) 0x5c <irq_stack_union+92>

I think this means that rq == NULL and that a test for rq is missing after the
__blk_mq_alloc_request() call?

Bart.

WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@sandisk.com>
To: "hch@lst.de" <hch@lst.de>, "axboe@fb.com" <axboe@fb.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"snitzer@redhat.com" <snitzer@redhat.com>,
	"j-nomura@ce.jp.nec.com" <j-nomura@ce.jp.nec.com>
Subject: Re: [dm-devel] split scsi passthrough fields out of struct request V2
Date: Thu, 26 Jan 2017 21:47:36 +0000	[thread overview]
Message-ID: <1485467235.2540.14.camel@sandisk.com> (raw)
In-Reply-To: <6995c991-65a4-8dca-c36e-fb2eff277ca9@fb.com>

On Thu, 2017-01-26 at 14:12 -0700, Jens Axboe wrote:
> On 01/26/2017 02:01 PM, Bart Van Assche wrote:
> > On Thu, 2017-01-26 at 13:54 -0700, Jens Axboe wrote:
> > > Your call path has blk_get_request() in it, I don't have
> > > that in my tree. Is it passing in the right mask?
> >=20
> > Hello Jens,
> >=20
> > There is only one blk_get_request() call in drivers/md/dm-mpath.c
> > and it looks as follows:
> >=20
> >  	clone =3D blk_get_request(bdev_get_queue(bdev),
> > 			rq->cmd_flags | REQ_NOMERGE,
> > 			GFP_ATOMIC);
>=20
> Yeah, I found it in the dm patch. Looks fine to me, since
> blk_mq_alloc_request() checks for __GFP_DIRECT_RECLAIM. Weird, it all
> looks fine to me. Are you sure you tested with the patch? Either that,
> or I'm smoking crack.

Hello Jens,

After I received your e-mail I noticed that there was a local
modification on the test system that was responsible for the schedule-
while-atomic complaint. Sorry for that. Anyway, I undid the merge with
the v4.10-rc5 code and repeated my test. This time the following call
stack appeared:

BUG: unable to handle kernel NULL pointer dereference at 000000000000005c
IP: blk_mq_sched_get_request+0x310/0x350
PGD 34bd9c067=20
PUD 346b37067=20
PMD 0=20

Oops: 0000 [#1] SMP
Modules linked in: dm_service_time ib_srp scsi_transport_srp target_core_us=
er uio target_core_pscsi target_core_file ib_srpt target_core_iblock target=
_core_mod brd netconsole xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_m=
asquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat libcrc32c nf_conntrack_ipv4 n=
f_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp=
 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables ipta=
ble_filter ip_tables x_tables af_packet ib_ipoib rdma_ucm ib_ucm ib_uverbs =
ib_umad rdma_cm configfs ib_cm iw_cm msr mlx4_ib ib_core sb_edac edac_core =
x86_pkg_temp_thermal intel_powerclamp coretemp ipmi_ssif kvm_intel kvm irqb=
ypass crct10dif_pclmul crc32_pclmul mlx4_core crc32c_intel ghash_clmulni_in=
tel pcbc aesni_intel aes_x86_64 tg3 iTCO_wdt crypto_simd dcdbas iTCO_vendor=
_support ptp glue_helper ipmi_si cryptd ipmi_devintf pps_core fjes devlink =
ipmi_msghandler pcspkr libphy tpm_tis tpm_tis_core tpm button mei_me lpc_ic=
h wmi mei mfd_core shpchp hid_generic usbhid mgag200 i2c_algo_bit drm_kms_h=
elper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm sr_mod drm cdrom eh=
ci_pci ehci_hcd usbcore usb_common sg dm_multipath dm_mod scsi_dh_rdac scsi=
_dh_emc scsi_dh_alua autofs4
CPU: 0 PID: 9231 Comm: fio Not tainted 4.10.0-rc4-dbg+ #1
Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.0.2 11/17/2014
task: ffff88034c8c3140 task.stack: ffffc90005698000
RIP: 0010:blk_mq_sched_get_request+0x310/0x350
RSP: 0018:ffffc9000569bac8 EFLAGS: 00010246
RAX: ffff88034f430958 RBX: ffff88045ed2cef0 RCX: 0000000000000000
RDX: 000000000000001f RSI: ffff8803507bdcf8 RDI: 000000000000001f
RBP: ffffc9000569bb00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffc9000569bb18
R13: 000000000000c801 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f65ca054700(0000) GS:ffff88046f200000(0000) knlGS:000000000000000=
0
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000005c CR3: 000000034b0ed000 CR4: 00000000001406f0
Call Trace:
 blk_mq_alloc_request+0x5e/0xb0
 blk_get_request+0x2f/0x110
 multipath_clone_and_map+0xcd/0x140 [dm_multipath]
 map_request+0x3c/0x290 [dm_mod]
 dm_mq_queue_rq+0x77/0x100 [dm_mod]
 blk_mq_dispatch_rq_list+0x1ff/0x320
 blk_mq_sched_dispatch_requests+0xa9/0xe0
 __blk_mq_run_hw_queue+0x122/0x1c0
 blk_mq_run_hw_queue+0x84/0x90
 blk_mq_flush_plug_list+0x39f/0x480
 blk_flush_plug_list+0xee/0x270
 blk_finish_plug+0x27/0x40
 do_io_submit+0x475/0x900
 SyS_io_submit+0xb/0x10
 entry_SYSCALL_64_fastpath+0x18/0xad
RIP: 0033:0x7f65e4d05787
RSP: 002b:00007f65ca051948 EFLAGS: 00000202 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00007f65e4d05787
RDX: 00007f65a404f158 RSI: 0000000000000001 RDI: 00007f65f6bfd000
RBP: 0000000000000815 R08: 0000000000000001 R09: 00007f65a404e3e0
R10: 00007f65a4040000 R11: 0000000000000202 R12: 00000000000006d0
R13: 00007f65a404e930 R14: 0000000000001000 R15: 0000000000000830
Code: 67 ff ff ff e9 80 fe ff ff 48 89 df e8 ba c4 fe ff 31 c9 e9 60 ff ff =
ff 44 89 ee 4c 89 e7 e8 c8 6d ff ff 48 89 c1 49 8b 44 24 18 <48> 63 51 5c 4=
8 8b 80 20 01 00 00 48 8b 80 80 00 00 00 48 89 0c=20
RIP: blk_mq_sched_get_request+0x310/0x350 RSP: ffffc9000569bac8
CR2: 000000000000005c

(gdb) list *(blk_mq_sched_get_request+0x310)
0xffffffff8132dcf0 is in blk_mq_sched_get_request (block/blk-mq-sched.c:136=
).
131 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0rq->rq_flags |=3D RQF_QUEUED;
132 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0} else
133 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=
=A0=A0=A0=A0=A0rq =3D __blk_mq_alloc_request(data, op);
134 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0} else {
135 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0rq =3D __bl=
k_mq_alloc_request(data, op);
136 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0data->hctx-=
>tags->rqs[rq->tag] =3D rq;
137 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0}
138
139 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0if (rq) {
140 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0if (!op_is_=
flush(op)) {

(gdb) disas blk_mq_sched_get_request
[ ... ]
 =A0=A00xffffffff8132dce3 <+771>: =A0=A0callq =A00xffffffff81324ab0 <__blk_=
mq_alloc_request>
 =A0=A00xffffffff8132dce8 <+776>: =A0=A0mov =A0=A0=A0%rax,%rcx
 =A0=A00xffffffff8132dceb <+779>: =A0=A0mov =A0=A0=A00x18(%r12),%rax
 =A0=A00xffffffff8132dcf0 <+784>: =A0=A0movslq 0x5c(%rcx),%rdx
[ ... ]
(gdb) print &((struct request *)0)->tag
$1 =3D (int *) 0x5c <irq_stack_union+92>

I think this means that rq =3D=3D NULL and that a test for rq is missing af=
ter the
__blk_mq_alloc_request() call?

Bart.=

  reply	other threads:[~2017-01-26 21:47 UTC|newest]

Thread overview: 172+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-25 17:25 split scsi passthrough fields out of struct request V2 Christoph Hellwig
2017-01-25 17:25 ` [PATCH 01/18] block: add a op_is_flush helper Christoph Hellwig
2017-01-26  2:58   ` Martin K. Petersen
2017-01-26 22:38   ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 02/18] md: cleanup bio op / flags handling in raid1_write_request Christoph Hellwig
2017-01-26  2:59   ` Martin K. Petersen
2017-01-26 23:18   ` Bart Van Assche
2017-01-26 23:18     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 03/18] block: fix elevator init check Christoph Hellwig
2017-01-26  3:01   ` Martin K. Petersen
2017-01-26 23:21   ` Bart Van Assche
2017-01-26 23:21     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 04/18] block: simplify blk_init_allocated_queue Christoph Hellwig
2017-01-26  3:02   ` Martin K. Petersen
2017-01-26 23:27   ` Bart Van Assche
2017-01-26 23:27     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 05/18] block: allow specifying size for extra command data Christoph Hellwig
2017-01-26  3:15   ` Martin K. Petersen
2017-01-27 16:12     ` Christoph Hellwig
2017-01-27 16:12       ` Christoph Hellwig
2017-01-27 17:21       ` Bart Van Assche
2017-01-27 17:21         ` Bart Van Assche
2017-01-27 17:26         ` Jens Axboe
2017-01-27 17:26           ` Jens Axboe
2017-01-27 17:30           ` Bart Van Assche
2017-01-27 17:30             ` Bart Van Assche
2017-01-27 17:33             ` Jens Axboe
2017-01-25 17:25 ` [PATCH 06/18] dm: remove incomple BLOCK_PC support Christoph Hellwig
2017-01-27 17:32   ` Bart Van Assche
2017-01-27 17:32     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 07/18] dm: always defer request allocation to the owner of the request_queue Christoph Hellwig
2017-01-27 16:34   ` Mike Snitzer
2017-01-27 16:34     ` Mike Snitzer
2017-01-27 16:36     ` Christoph Hellwig
2017-01-27 16:36       ` Christoph Hellwig
2017-01-27 16:44       ` Mike Snitzer
2017-01-27 16:44         ` Mike Snitzer
2017-01-25 17:25 ` [PATCH 08/18] scsi_dh_rdac: switch to scsi_execute_req_flags() Christoph Hellwig
2017-01-26  3:18   ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 09/18] scsi_dh_emc: " Christoph Hellwig
2017-01-26  3:19   ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 10/18] scsi_dh_hp_sw: " Christoph Hellwig
2017-01-26  3:20   ` Martin K. Petersen
2017-01-26  3:20     ` Martin K. Petersen
2017-01-25 17:25 ` [PATCH 11/18] scsi: remove gfp_flags member in scsi_host_cmd_pool Christoph Hellwig
2017-01-26  3:21   ` Martin K. Petersen
2017-01-27 17:38   ` Bart Van Assche
2017-01-27 17:38     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 12/18] scsi: respect unchecked_isa_dma for blk-mq Christoph Hellwig
2017-01-26  3:23   ` Martin K. Petersen
2017-01-27 17:45   ` Bart Van Assche
2017-01-27 17:45     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 13/18] scsi: remove scsi_cmd_dma_pool Christoph Hellwig
2017-01-26  3:24   ` Martin K. Petersen
2017-01-27 17:51   ` Bart Van Assche
2017-01-27 17:51     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 14/18] scsi: remove __scsi_alloc_queue Christoph Hellwig
2017-01-26  3:25   ` Martin K. Petersen
2017-01-27 17:58   ` Bart Van Assche
2017-01-27 17:58     ` Bart Van Assche
2017-01-28  8:23     ` hch
2017-01-25 17:25 ` [PATCH 15/18] scsi: allocate scsi_cmnd structures as part of struct request Christoph Hellwig
2017-01-26  3:30   ` Martin K. Petersen
2017-01-27 18:39   ` Bart Van Assche
2017-01-27 18:39     ` Bart Van Assche
2017-01-28  8:25     ` hch
2017-01-28  8:25       ` hch
2017-01-25 17:25 ` [PATCH 16/18] block/bsg: move queue creation into bsg_setup_queue Christoph Hellwig
2017-01-27 18:48   ` Bart Van Assche
2017-01-27 18:48     ` Bart Van Assche
2017-01-25 17:25 ` [PATCH 17/18] block: split scsi_request out of struct request Christoph Hellwig
2017-01-25 17:25 ` [PATCH 18/18] block: don't assign cmd_flags in __blk_rq_prep_clone Christoph Hellwig
2017-01-26  3:31   ` Martin K. Petersen
2017-01-26 18:29 ` split scsi passthrough fields out of struct request V2 Bart Van Assche
2017-01-26 18:29   ` Bart Van Assche
2017-01-26 18:44   ` Jens Axboe
2017-01-26 18:52     ` Bart Van Assche
2017-01-26 18:52       ` Bart Van Assche
2017-01-26 18:57       ` Jens Axboe
2017-01-26 18:59         ` hch
2017-01-26 19:01           ` Jens Axboe
2017-01-26 19:01             ` Jens Axboe
2017-01-26 20:47             ` [dm-devel] " Bart Van Assche
2017-01-26 20:54               ` Jens Axboe
2017-01-26 20:54                 ` [dm-devel] " Jens Axboe
2017-01-26 21:01                 ` Bart Van Assche
2017-01-26 21:01                   ` Bart Van Assche
2017-01-26 21:12                   ` Jens Axboe
2017-01-26 21:12                     ` [dm-devel] " Jens Axboe
2017-01-26 21:47                     ` Bart Van Assche [this message]
2017-01-26 21:47                       ` Bart Van Assche
2017-01-26 21:51                       ` Jens Axboe
2017-01-26 21:51                         ` [dm-devel] " Jens Axboe
2017-01-26 23:14                         ` Bart Van Assche
2017-01-26 23:14                           ` Bart Van Assche
2017-01-26 23:26                           ` Jens Axboe
2017-01-26 23:26                             ` Jens Axboe
2017-01-26 23:26                             ` [dm-devel] " Jens Axboe
2017-01-26 23:47                             ` Bart Van Assche
2017-01-26 23:47                               ` [dm-devel] " Bart Van Assche
2017-01-26 23:50                               ` Jens Axboe
2017-01-27  0:33                                 ` Jens Axboe
2017-01-27  0:33                                   ` [dm-devel] " Jens Axboe
2017-01-27  0:38                                 ` Bart Van Assche
2017-01-27  0:38                                   ` Bart Van Assche
2017-01-27  0:41                                   ` Jens Axboe
2017-01-27  1:15                                     ` Bart Van Assche
2017-01-27  1:15                                       ` [dm-devel] " Bart Van Assche
2017-01-27  1:22                                       ` Jens Axboe
2017-01-27  1:22                                         ` [dm-devel] " Jens Axboe
2017-01-27  6:40                                         ` Jens Axboe
2017-01-27  8:04                                           ` Jens Axboe
2017-01-27  8:04                                             ` [dm-devel] " Jens Axboe
2017-01-27 16:52                                             ` Bart Van Assche
2017-01-27 16:52                                               ` [dm-devel] " Bart Van Assche
2017-01-27 16:56                                               ` Jens Axboe
2017-01-27 16:56                                                 ` [dm-devel] " Jens Axboe
2017-01-27 17:03                                                 ` Bart Van Assche
2017-01-27 17:03                                                   ` [dm-devel] " Bart Van Assche
2017-01-31  1:12                                                 ` Bart Van Assche
2017-01-31  1:12                                                   ` Bart Van Assche
2017-01-31  1:38                                                   ` Jens Axboe
2017-01-31  1:38                                                     ` Jens Axboe
2017-01-31  4:13                                                     ` Jens Axboe
2017-01-31  4:13                                                       ` [dm-devel] " Jens Axboe
2017-01-31 21:35                                                     ` Bart Van Assche
2017-01-31 21:35                                                       ` Bart Van Assche
2017-01-31 21:55                                                       ` Bart Van Assche
2017-01-31 21:55                                                         ` Bart Van Assche
2017-01-31 21:58                                                         ` Jens Axboe
2017-02-01  1:01                                                           ` Bart Van Assche
2017-02-01  6:38                                                             ` Jens Axboe
2017-02-01 16:46                                                               ` Bart Van Assche
2017-02-01 17:13                                                                 ` Jens Axboe
2017-02-01 17:28                                                                   ` Bart Van Assche
2017-02-01 19:21                                                                   ` Bart Van Assche
2017-02-01 22:01                                                                   ` Bart Van Assche
2017-02-02 17:27                                                                     ` Bart Van Assche
2017-02-02 18:33                                                                       ` Mike Snitzer
2017-02-02 18:43                                                                         ` Bart Van Assche
2017-02-02 19:13                                                                           ` Mike Snitzer
2017-02-02 19:46                                                                             ` Bart Van Assche
2017-02-02 21:04                                                                               ` Mike Snitzer
2017-02-02 21:10                                                                                 ` Mike Snitzer
2017-02-03  0:20                                                                                   ` Bart Van Assche
2017-02-03  0:42                                                                                     ` Mike Snitzer
2017-02-02 22:38                                                                                 ` Bart Van Assche
2017-01-27 17:02                                         ` [dm-devel] " Bart Van Assche
2017-01-27 17:02                                           ` Bart Van Assche
2017-01-27 16:11 ` Jens Axboe
2017-01-27 16:11   ` Jens Axboe
2017-01-27 16:17   ` Christoph Hellwig
2017-01-27 16:17     ` Christoph Hellwig
2017-01-27 16:21     ` Jens Axboe
2017-01-27 16:21       ` Jens Axboe
2017-01-27 16:23       ` Christoph Hellwig
2017-01-27 16:23         ` Christoph Hellwig
2017-01-27 16:27         ` Jens Axboe
2017-01-27 16:27           ` Jens Axboe
2017-01-27 16:34           ` Christoph Hellwig
2017-01-27 16:34             ` Christoph Hellwig
2017-01-27 16:38             ` Jens Axboe
2017-01-27 16:38               ` Jens Axboe
2017-01-27 16:42               ` Christoph Hellwig
2017-01-27 16:42                 ` Christoph Hellwig
2017-01-27 16:58                 ` Jens Axboe
2017-01-27 16:58                   ` Jens Axboe
2017-01-27 21:27 ` Bart Van Assche
2017-01-27 21:27   ` Bart Van Assche
2017-01-28  8:29   ` hch
2017-01-30  6:58   ` Hannes Reinecke
2017-01-30  6:58     ` Hannes Reinecke

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