From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Beier <benjamin@desaster-games.com>
Subject: Re: [BUG][4.5.1]xl cpupool-create segfault (with config
 file parameter)
Date: Thu, 13 Aug 2015 14:12:55 +0200
Message-ID: <55CC89C7.4090701@desaster-games.com>
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To: Ian Campbell <ian.campbell@citrix.com>, xen-devel@lists.xensource.com
Cc: Dario Faggioli <dario.faggioli@citrix.com>
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On 08/13/2015 01:29 PM, Ian Campbell wrote:
> On Thu, 2015-08-13 at 13:13 +0200, Benjamin Beier wrote:
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x0000000000418db5 in main_cpupoolcreate (argc=,
>> argv=0x7fffffffda50) at xl_cmdimpl.c:7102
>> 7102    xl_cmdimpl.c: No such file or directory.
>> (gdb) bt
>> #0  0x0000000000418db5 in main_cpupoolcreate (argc=<optimized out>,
>> argv=0x7fffffffda50) at xl_cmdimpl.c:7102
>> #1  0x0000000000407c79 in main (argc=2, argv=0x7fffffffda50) at xl.c:361
>
> In "git show RELEASE-4.5.1:tools/libxl/xl_cmdimpl.c" line 7102 is a blank
> line. The next line is:
>       config = xlu_cfg_init(stderr, config_src);
> which might be the culprit but also might not be.
>
> Are you running pristine 4.5.1 or are the (perhaps gentoo added) patches?
> Can you figure out what line 7102 of that might be.
>
>> Just tell me if this is a gentoo-only thing and I will open a bug report
>> there.
>
> It's not clear yet, since it might be a backport of a buggy patch, but it's
> starting to look a bit that way. Once xl_cmdimpl.c:7102 and the list of
> patches is clarified I think we'll know one way or another.
>
> Ian

I am not an expert for ebuilds and the xen-tools ebuild is rather 
complicated. I filed a gentoo bug report and linked to this upstream 
report here. Hopefully one of the gentoo ebuild maintainers has further 
information for you.

https://bugs.gentoo.org/show_bug.cgi?id=557458

Regards,
Benjamin