Re: [Qemu-devel] Fwd: Re: [target-mips] qemu on centos

[Brendan Kirby <bkirby@mips.com>]

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Attached are three MIPS binaries that I have seen segfault
intermittently on CentOS 6 machines.  Just run them with no arguments
several times.

Brendan

On Fri, 2011-12-23 at 09:00 -0800, Reed Kotler wrote:
> 
> Please work with this guy.
> 
> If possible, submit some test cases to them of some code that causes
> segfaults on Centos 6, even if intermittent.
> 
> Reed
> 
> -------- Original Message -------- 
>                           Subject: 
> Re: [Qemu-devel] [target-mips] qemu
> on centos
>                              Date: 
> Fri, 23 Dec 2011 14:25:57 +0100
>                              From: 
> Andreas Färber <afaerber@suse.de>
>                      Organization: 
> SUSE LINUX Products GmbH
>                                To: 
> Reed Kotler <rkotler@mips.com>
>                                CC: 
> <qemu-devel@nongnu.org>, Khansa
> Butt <khansa@kics.edu.pk>, Richard
> Henderson <rth@twiddle.net>,
> Richard Sandiford
> <rdsandiford@googlemail.com>
> 
> 
> Hi,
> 
> Am 23.12.2011 13:44, schrieb Reed Kotler:
> > We have been seeing various problems running qemu for MIPS target on
> > Centos 5.
> > We are running linux user mode programs.
> > 
> > Qemu segfaults.
> > 
> > We recently tried upgrading to Centos 6 and the problem there is much
> > worse, making it basically unusable.
> > 
> > The same programs have no problem when running on Ubuntu.
> 
> They likely are using different QEMU versions, and distros may have
> different patches applied on top.
> Please provide some more info on what version, what ABI (which
> executable), what -cpu parameter (if any), etc. you are using. Does a
> gdb backtrace indicate any QEMU function or is it from translated code?
> 
> For n64 there were some patches in need of testing, review and fixing.
> [cc'ing Khansa]
> 
> For n32 there's signal handling missing. (openSUSE for one ignores the
> build warning and provides it non the less.)
> 
> No known issues specific to o32 that I'm aware of, but the two Richards
> had patches for some instructions. Shouldn't lead to segfaults though.
> 
> Regards,
> Andreas
> 
> -- 
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg


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