From: Josh Durgin <josh.durgin@dreamhost.com>
To: Danny Kukawka <danny.kukawka@bisect.de>
Cc: ceph-devel@vger.kernel.org, Alex Elder <elder@dreamhost.com>
Subject: Re: Kernel crashes with RBD
Date: Fri, 13 Apr 2012 10:48:58 -0700 [thread overview]
Message-ID: <4F88670A.7080709@dreamhost.com> (raw)
In-Reply-To: <4F860619.5040802@bisect.de>
On 04/11/2012 03:30 PM, Danny Kukawka wrote:
> Hi,
>
> we are currently testing CEPH with RBD on a cluster with 1GBit and
> 10Gbit interfaces. While we see no kernel crashes with RBD if the
> cluster runs on the 1GBit interfaces, we see very frequent kernel
> crashes with the 10Gbit network while running tests with e.g. fio
> against the RBDs.
>
> I've tested it with kernel v3.0 and also 3.3.0 (with the patches from
> the 'for-linus' branch from ceph-client.git at git.kernel.org).
>
> With more client machines running tests the crashes occur even much
> faster. The issue is fully reproducible here.
>
> Has anyone seen similar problems? See the backtrace below.
>
> Regards
>
> Danny
>
> PID: 10902 TASK: ffff88032a9a2080 CPU: 0 COMMAND: "kworker/0:0"
> #0 [ffff8803235fd950] machine_kexec at ffffffff810265ee
> #1 [ffff8803235fd9a0] crash_kexec at ffffffff810a3bda
> #2 [ffff8803235fda70] oops_end at ffffffff81444688
> #3 [ffff8803235fda90] __bad_area_nosemaphore at ffffffff81032a35
> #4 [ffff8803235fdb50] do_page_fault at ffffffff81446d3e
> #5 [ffff8803235fdc50] page_fault at ffffffff81443865
> [exception RIP: read_partial_message+816]
> RIP: ffffffffa041e500 RSP: ffff8803235fdd00 RFLAGS: 00010246
> RAX: 0000000000000000 RBX: 00000000000009d7 RCX: 0000000000008000
> RDX: 0000000000000000 RSI: 00000000000009d7 RDI: ffffffff813c8d78
> RBP: ffff880328827030 R8: 00000000000009d7 R9: 0000000000004000
> R10: 0000000000000000 R11: ffffffff81205800 R12: 0000000000000000
> R13: 0000000000000069 R14: ffff88032a9bc780 R15: 0000000000000000
> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
> #6 [ffff8803235fdd38] thread_return at ffffffff81440e82
> #7 [ffff8803235fdd78] try_read at ffffffffa041ed58 [libceph]
> #8 [ffff8803235fddf8] con_work at ffffffffa041fb2e [libceph]
> #9 [ffff8803235fde28] process_one_work at ffffffff8107487c
> #10 [ffff8803235fde78] worker_thread at ffffffff8107740a
> #11 [ffff8803235fdee8] kthread at ffffffff8107b736
> #12 [ffff8803235fdf48] kernel_thread_helper at ffffffff8144c144
>
This looks similar to http://tracker.newdream.net/issues/2261. What do
you think Alex?
Josh
next prev parent reply other threads:[~2012-04-13 17:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-11 22:30 Kernel crashes with RBD Danny Kukawka
2012-04-13 17:48 ` Josh Durgin [this message]
2012-04-13 18:18 ` Danny Kukawka
2012-04-13 20:56 ` Josh Durgin
2012-04-13 23:03 ` Danny Kukawka
2012-04-14 13:32 ` Danny Kukawka
2012-06-06 7:32 ` Yan, Zheng
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