Getting the kexec on panic
dyoung at redhat.com
Fri Sep 7 05:34:33 EDT 2012
On 09/07/2012 06:06 AM, Jerry Snitselaar wrote:
> On Thu Sep 06 12, Lluís Batlle i Rossell wrote:
>> while I can load immediately a kernel using kexec, when I set it for panic and
>> crash with sysrq-c, the computer hangs.
>> I'm using the nvidia X driver; can it be that it stops the panic handling from
>> working? I don't understand why it would work with normal kexec though, if it
>> were the case.
> Hi Lluis,
> What kernel are you using? The commit 722bc6b "x86/mm: Fix the size calculation of mapping tables" which started showing up in 3.5-rc1 causes problems for the crash kernel. You might try this patchset from Jacob Shin and see if it resolves the problem for you if you are experiencing your problem on a 3.5-rc1+ kernel.
>  https://lkml.org/lkml/2012/8/24/474
He has updated the v5 patch set as below:
>> kexec mailing list
>> kexec at lists.infradead.org
> kexec mailing list
> kexec at lists.infradead.org
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