From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
Cc: Josh Durgin <josh.durgin@inktank.com>,
Stefan Hajnoczi <stefanha@gmail.com>,
qemu-devel <qemu-devel@nongnu.org>,
"pve-devel@pve.proxmox.com" <pve-devel@pve.proxmox.com>,
Michael Roth <mdroth@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] segfault in aio_bh_poll async.c:80 WAS: Re: kvm process disappears
Date: Thu, 23 May 2013 12:09:41 +0200 [thread overview]
Message-ID: <519DEAE5.7030100@redhat.com> (raw)
In-Reply-To: <6478F274-11C3-4000-B706-3FADA20D2B76@profihost.ag>
Il 22/05/2013 14:24, Stefan Priebe - Profihost AG ha scritto:
> Am 22.05.2013 um 10:41 schrieb Paolo Bonzini <pbonzini@redhat.com>:
>
>> Il 22/05/2013 08:26, Stefan Priebe - Profihost AG ha scritto:
>>>> Hi,
>>>>
>>>> as i can't reproduce no ;-( i just saw the kernel segfault message and
>>>> used addr2line and a qemu dbg package to get the code line.
>>>
>>> I've now seen this again for two or three times. It always happens
>>> when we do an fstrim inside the guest.
>>
>>
>>> And I've seen this first since josh async rbd patch.
>>
>> This one?
>>
>> commit dc7588c1eb3008bda53dde1d6b890cd299758155
>
> Yes. But i'm not sure whether this is coincendence.
Ok.
>> Do you see it even with "-drive discard=off"?
>
> I use discard / trim for thin provisioning and need it. This is a
> production system so I can't test without it.
>
> I use scsi virtio with discard_granularity=512
Note that 1.5.0 won't need this anymore, but it will need "-drive
discard=on". Any chance you can try to reproduce it in a different
environment?
Paolo
next prev parent reply other threads:[~2013-05-23 10:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-10 6:12 [Qemu-devel] kvm process disappears Stefan Priebe - Profihost AG
2013-05-10 7:15 ` [Qemu-devel] [pve-devel] " Alexandre DERUMIER
2013-05-10 7:20 ` Alexandre DERUMIER
2013-05-10 7:22 ` Stefan Priebe - Profihost AG
2013-05-10 7:28 ` Alexandre DERUMIER
2013-05-10 9:06 ` Stefan Priebe - Profihost AG
2013-05-10 7:42 ` [Qemu-devel] " Stefan Hajnoczi
2013-05-10 9:07 ` Stefan Priebe - Profihost AG
2013-05-10 11:09 ` Stefan Hajnoczi
2013-05-14 14:29 ` [Qemu-devel] segfault in aio_bh_poll async.c:80 WAS: " Stefan Priebe - Profihost AG
2013-05-14 15:05 ` Stefan Hajnoczi
2013-05-14 15:11 ` Stefan Priebe - Profihost AG
2013-05-22 6:26 ` Stefan Priebe - Profihost AG
2013-05-22 8:41 ` Paolo Bonzini
2013-05-22 12:24 ` Stefan Priebe - Profihost AG
2013-05-23 10:09 ` Paolo Bonzini [this message]
2013-05-23 19:22 ` Stefan Priebe
2013-05-27 21:09 ` [Qemu-devel] " Stefan Priebe
2013-05-28 8:06 ` Stefan Hajnoczi
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