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Re: [Qemu-devel] kvm segfaulting


From: Michael Tokarev
Subject: Re: [Qemu-devel] kvm segfaulting
Date: Mon, 11 Feb 2013 12:29:00 +0400
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:17.0) Gecko/17.0 Icedove/17.0

11.02.2013 11:46, Stefan Priebe - Profihost AG пишет:
Hello list,

i've seen segfaults of the kvm process. Sadly i've no core dumps just
the line from dmesg:
kvm[26268]: segfault at c050 ip 00007fcfc3465eac sp 00007fffe85a0d00
error 4 in kvm[7fcfc3223000+3ba000]

Is it possible to get the function and some more details out of this
line? I've symbol files and debugging files of the kvm binary.

First of all you need to provide at least minimal info about what _is_
your kvm process.  Official qemu binary for x86 is named qemu-system-x86_64.
Maybe some words about version, if it is some distribution-specific thing
(debian?) - maybe name the distribution, etc.  How it is started.

Enabling core dumps is a separate topic, basically, your process should
have writable current directory and not change its uid, or else you'll
have to do some tricks.  After you've a coredump, run gdb on it with the
symbols file, to see where it goes.

Thanks,

/mjt



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