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From: Josh Durgin <josh.durgin@dreamhost.com>
To: chb@muc.de
Cc: ceph-devel@vger.kernel.org
Subject: Re: qemu librbd patches
Date: Tue, 24 May 2011 13:10:56 -0700	[thread overview]
Message-ID: <4DDC10D0.2060004@dreamhost.com> (raw)
In-Reply-To: <BANLkTim4jTVJH5y6o5rHq8pm_KfH0Jiz0w@mail.gmail.com>

On 05/09/2011 01:59 AM, Christian Brunner wrote:
> Hi,
>
> after upgrading to qemu with josh's librbd patches I'm triggering the
> following assertion, when I'm running "yum upgrade" inside a guest.
>
> I suspect there is a race condition somewhere, but I don't have a clue
> at the moment.
>
> Regards,
> Christian
>
> common/Mutex.h: In function 'void Mutex::Lock(bool)', in thread '0x7fea16b36700'
> common/Mutex.h: 118: FAILED assert(r == 0)
> common/Mutex.h: In function 'void Mutex::Lock(bool)', in thread '0x7fea16b36700'
> common/Mutex.h: 118: FAILED assert(r == 0)
>   ceph version 0.27.1 (commit:44900d4c13f02913b3347cac3e1dc33632d5b8ff)
>   1: (librbd::aio_write(librbd::ImageCtx*, unsigned long, unsigned
> long, char const*, librbd::AioCompletion*)+0x54e) [0x7fea2299523e]
>   2: /usr/bin/qemu-kvm() [0x46a165]
>   3: /usr/bin/qemu-kvm() [0x46a1d0]
>   4: /usr/bin/qemu-kvm() [0x44349f]
>   ceph version 0.27.1 (commit:44900d4c13f02913b3347cac3e1dc33632d5b8ff)
>   1: (librbd::aio_write(librbd::ImageCtx*, unsigned long, unsigned
> long, char const*, librbd::AioCompletion*)+0x54e) [0x7fea2299523e]
>   2: /usr/bin/qemu-kvm() [0x46a165]
>   3: /usr/bin/qemu-kvm() [0x46a1d0]
>   4: /usr/bin/qemu-kvm() [0x44349f]
>   ceph version 0.27.1 (commit:44900d4c13f02913b3347cac3e1dc33632d5b8ff)
>   1: (librbd::aio_write(librbd::ImageCtx*, unsigned long, unsigned
> long, char const*, librbd::AioCompletion*)+0x54e) [0x7fea2299523e]
>   2: /usr/bin/qemu-kvm() [0x46a165]
>   3: /usr/bin/qemu-kvm() [0x46a1d0]
>   4: /usr/bin/qemu-kvm() [0x44349f]
>   ceph version 0.27.1 (commit:44900d4c13f02913b3347cac3e1dc33632d5b8ff)
>   1: (librbd::aio_write(librbd::ImageCtx*, unsigned long, unsigned
> long, char const*, librbd::AioCompletion*)+0x54e) [0x7fea2299523e]
>   2: /usr/bin/qemu-kvm() [0x46a165]
>   3: /usr/bin/qemu-kvm() [0x46a1d0]
>   4: /usr/bin/qemu-kvm() [0x44349f]
> terminate called after throwing an instance of 'ceph::FailedAssertion'

Hi Christian,

Could you try to get a core file for this? I still haven't been able to 
reproduce it.

Thanks,
Josh

  parent reply	other threads:[~2011-05-24 20:10 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-09  8:59 qemu librbd patches Christian Brunner
2011-05-09 15:22 ` Josh Durgin
2011-05-10  8:29   ` Yehuda Sadeh Weinraub
2011-05-24 20:10 ` Josh Durgin [this message]
2011-05-25 19:09   ` Christian Brunner

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