projects
/
lttng-modules.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(from:
94e7e92
)
fix: block instrumentation: NULL pointer dereference
author
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Thu, 6 Jun 2013 02:54:50 +0000
(22:54 -0400)
committer
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Fri, 7 Jun 2013 18:41:22 +0000
(14:41 -0400)
This backtrace appears with kernel 3.9.4:
[19311.313455] BUG: unable to handle kernel NULL pointer dereference at (null)
[19311.316589] IP: [<
ffffffffa076392b
>] __event_probe__block_bio+0x8b/0x1a0 [lttng_probe_block]
[19311.316589] PGD
41808a067
PUD
4190a3067
PMD 0
[19311.316589] Oops: 0000 [#1] PREEMPT SMP
[19311.316589] Modules linked in: lttng_probe_writeback(O) lttng_probe_workqueue(O) lttng_probe_vmscan(O) lttng_probe_udp(O) lm
[19311.316589] CPU 4
[19311.316589] Pid: 1423, comm: kjournald Tainted: G O 3.9.4-trace-test #143 Supermicro X7DAL/X7DAL
[19311.316589] RIP: 0010:[<
ffffffffa076392b
>] [<
ffffffffa076392b
>] __event_probe__block_bio+0x8b/0x1a0 [lttng_probe_block]
[19311.316589] RSP: 0018:
ffff88041c0d5aa8
EFLAGS:
00010246
[19311.316589] RAX:
0000000000000000
RBX:
ffff88041a994c00
RCX:
ffff88041b610800
[19311.316589] RDX:
0000000000000004
RSI:
ffff88041c0d5b00
RDI:
ffff88041c0d5ab0
[19311.316589] RBP:
ffff88041c0d5b18
R08:
fffffffffffc0000
R09:
0000000000000000
[19311.316589] R10:
ffff88041a9947e8
R11:
0000000000000001
R12:
ffff880419252c18
[19311.316589] R13:
ffff88041c9e0a48
R14:
ffff88041749bd10
R15:
ffff88041749bd20
[19311.316589] FS:
0000000000000000
(0000) GS:
ffff88042fd00000
(0000) knlGS:
0000000000000000
[19311.316589] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
[19311.316589] CR2:
0000000000000000
CR3:
0000000417a0a000
CR4:
00000000000007e0
[19311.316589] DR0:
0000000000000000
DR1:
0000000000000000
DR2:
0000000000000000
[19311.316589] DR3:
0000000000000000
DR6:
00000000ffff0ff0
DR7:
0000000000000400
[19311.316589] Process kjournald (pid: 1423, threadinfo
ffff88041c0d4000
, task
ffff88041daa0000
)
[19311.316589] Stack:
[19311.316589]
0000000000000000
ffff88041c3e4000
ffff880408987518
0000000000000024
[19311.316589]
0000000400000001
ffff88042fd19e30
000000000000002a
00000000000126c1
[19311.316589]
00000000000126bb
0000119043fa4efc
ffff880400000000
0000000000000246
[19311.316589] Call Trace:
[19311.316589] [<
ffffffff812e79fb
>] bio_attempt_back_merge+0xfb/0x1e0
[19311.316589] [<
ffffffff812ec96f
>] blk_queue_bio+0x43f/0x570
[19311.316589] [<
ffffffff812ea68a
>] generic_make_request+0xca/0x100
[19311.316589] [<
ffffffff81495bfe
>] raid1_unplug+0x12e/0x170
[19311.316589] [<
ffffffff812ec36c
>] blk_flush_plug_list+0x9c/0x210
[19311.316589] [<
ffffffff812ec4f8
>] blk_finish_plug+0x18/0x50
[19311.316589] [<
ffffffff81243a48
>] journal_commit_transaction+0x728/0x1f30
[19311.316589] [<
ffffffff8104e463
>] ? try_to_del_timer_sync+0x53/0x70
[19311.316589] [<
ffffffff8104e485
>] ? del_timer_sync+0x5/0xd0
[19311.316589] [<
ffffffff8124967d
>] kjournald+0xed/0x290
[19311.316589] [<
ffffffff8106a270
>] ? __init_waitqueue_head+0x60/0x60
[19311.316589] [<
ffffffff81249590
>] ? commit_timeout+0x10/0x10
[19311.316589] [<
ffffffff810695fb
>] kthread+0xdb/0xe0
[19311.316589] [<
ffffffff81672c60
>] ? _raw_spin_unlock_irq+0x30/0x60
[19311.316589] [<
ffffffff81069520
>] ? __init_kthread_worker+0x70/0x70
[19311.316589] [<
ffffffff8167af1c
>] ret_from_fork+0x7c/0xb0
[19311.316589] [<
ffffffff81069520
>] ? __init_kthread_worker+0x70/0x70
Fixes #559
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
No differences found
This page took
0.028406 seconds
and
4
git commands to generate.