From: RW <kvm@tauceti.net>
To: Liang Guo <bluestonechina@gmail.com>
Cc: KVM mailing list <kvm@vger.kernel.org>
Subject: Re: Segfault
Date: Fri, 22 Jan 2010 15:45:30 +0100 [thread overview]
Message-ID: <4B59BA0A.3070008@tauceti.net> (raw)
In-Reply-To: <229432dd1001220635t5ba74dah982d5e5862035a0@mail.gmail.com>
Thanks for the hint but unfortunately every qemu command quits with
a segfault with this image:
scotty images # qemu-nbd nweb.img
Segmentation fault
[192749.840652] qemu-nbd[16052]: segfault at 7f88b1382000 ip
0000000000419492 sp 00007fff1e94f710 error 7 in qemu-nbd[400000+31000]
It's sad that a segfault of Qemu/KVM can corrupt a whole image
while the host itself was running without any problems as the
segfault happened. Seems that the data is lost. But thanks again
anyway!
Robert
On 01/22/10 15:35, Liang Guo wrote:
>
> 2010/1/20 RW <kvm@tauceti.net <mailto:kvm@tauceti.net>>
>
>
> > Is there any chance to get (some) data in the image back? Backup
> is a few weeks old :-(
> >
>
>
> you may use kvm-nbd or qemu-nbd to present kvm image as a NBD device, so
> that you can use nbd-client to access them. eg:
>
> kvm-nbd /vm/sid1.img
> modprobe nbd
> nbd-client localhost 1024 /dev/nbd0
> fdisk -l /dev/nbd0
>
> --
> Liang Guo
> http://bluestone.cublog.cn
next prev parent reply other threads:[~2010-01-22 14:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-19 21:40 Segfault Robert Wimmer
2010-01-20 10:34 ` Segfault RW
[not found] ` <229432dd1001220635t5ba74dah982d5e5862035a0@mail.gmail.com>
2010-01-22 14:45 ` RW [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-01-19 21:22 Segfault Robert Wimmer
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