Re: Xen 4.2.1, linux kernel 3.7.5 crashed while reboot

[Michal Fiala <fiala@mfiala.net>]

On 02/27/2013 04:41 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, Feb 27, 2013 at 11:08:19AM +0100, Michal Fiala wrote:
>> On 02/27/2013 09:35 AM, Jan Beulich wrote:
>>>>>> On 26.02.13 at 23:01, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
>>>> The thing is is that native_machine_emergency_restart is not suppose
>>>> to be called. The baremetal machine_ops has that, but we over-write
>>>> it with our own and he should get:
>>>>
>>>>          .emergency_restart = xen_emergency_restart,
>>>>
>>>> ! So how did his .emergency_restart value get over-written by
>>>> native_machine_emergency_restart?
>>>
>>> Indeed. So perhaps the -hardened tag indicates some patching
>>> having gone on that we're unaware of. Michal - without knowing
>>> what your kernel does, I don't think we can really help. And
>>> please remember that this is xen-devel, not xen-users, so we
>>> expect you to be able to do at least a minimal share of the work
>>> needed to find out what is going on. First step would probably
>>> be to try plain 3.7.5 (or subsequent 3.7.x).
>>>
>>> Jan
>>>
>>
>> We are using gentoo hardened sources (kernel). Hardened-sources is based
>> on the official Linux kernel and is targeted at our users running Gentoo
>> on server systems. It provides patches for the various subprojects of
>> Gentoo Hardened (such as support for LSM/SELinux and grsecurity),
>> together with stability/security-enhancements.
>> See http://www.gentoo.org/doc/en/gentoo-kernel.xml
>>
>> I will try gentoo-sources (lightly patched to fix security problems,
>> kernel bugs, and to increase compatibility with the more uncommon system
>> architectures) and vanilla-sources (official kernel sources released on
>> http://www.kernel.org/)
> 
> Excellent. Thanks.

The problem was fixed by changing kernel to gentoo-sources. So there is
a problem in hardened-sources.

Thanks

M.

>>
>> Thanks
>>
>> Michal
>>
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