* Getting the kexec on panic
@ 2012-09-06 9:43 Lluís Batlle i Rossell
2012-09-06 18:48 ` Daniel Baluta
2012-09-06 22:06 ` Jerry Snitselaar
0 siblings, 2 replies; 5+ messages in thread
From: Lluís Batlle i Rossell @ 2012-09-06 9:43 UTC (permalink / raw)
To: kexec
Hello,
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.
Regards,
Lluís.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Getting the kexec on panic
2012-09-06 9:43 Getting the kexec on panic Lluís Batlle i Rossell
@ 2012-09-06 18:48 ` Daniel Baluta
2012-09-06 22:06 ` Jerry Snitselaar
1 sibling, 0 replies; 5+ messages in thread
From: Daniel Baluta @ 2012-09-06 18:48 UTC (permalink / raw)
To: Lluís Batlle i Rossell; +Cc: kexec
On Thu, Sep 6, 2012 at 12:43 PM, Lluís Batlle i Rossell
<viric@viric.name> wrote:
> Hello,
>
> 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.
Hello,
Did you setup a kernel for load on panic? Can you paste the output for
# cat /proc/cmdline ?
thanks,
Daniel.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Getting the kexec on panic
2012-09-06 9:43 Getting the kexec on panic Lluís Batlle i Rossell
2012-09-06 18:48 ` Daniel Baluta
@ 2012-09-06 22:06 ` Jerry Snitselaar
2012-09-07 9:34 ` Dave Young
1 sibling, 1 reply; 5+ messages in thread
From: Jerry Snitselaar @ 2012-09-06 22:06 UTC (permalink / raw)
To: Lluís Batlle i Rossell; +Cc: kexec
On Thu Sep 06 12, Lluís Batlle i Rossell wrote:
> Hello,
>
> 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.
>
> Regards,
> Lluís.
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[1] from Jacob Shin and see if it resolves the problem for you if you are experiencing your problem on a 3.5-rc1+ kernel.
[1] https://lkml.org/lkml/2012/8/24/474
Regards,
Jerry
>
> _______________________________________________
> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec
_______________________________________________
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kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Getting the kexec on panic
2012-09-06 22:06 ` Jerry Snitselaar
@ 2012-09-07 9:34 ` Dave Young
2012-09-07 9:41 ` Lluís Batlle i Rossell
0 siblings, 1 reply; 5+ messages in thread
From: Dave Young @ 2012-09-07 9:34 UTC (permalink / raw)
To: Lluís Batlle i Rossell, kexec
On 09/07/2012 06:06 AM, Jerry Snitselaar wrote:
> On Thu Sep 06 12, Lluís Batlle i Rossell wrote:
>> Hello,
>>
>> 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.
>>
>> Regards,
>> Lluís.
>
> 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[1] from Jacob Shin and see if it resolves the problem for you if you are experiencing your problem on a 3.5-rc1+ kernel.
>
> [1] https://lkml.org/lkml/2012/8/24/474
He has updated the v5 patch set as below:
https://lkml.org/lkml/2012/8/29/227
>
> Regards,
> Jerry
>
>>
>> _______________________________________________
>> kexec mailing list
>> kexec@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/kexec
>
> _______________________________________________
> kexec mailing list
> kexec@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/kexec
--
Thanks
Dave
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Getting the kexec on panic
2012-09-07 9:34 ` Dave Young
@ 2012-09-07 9:41 ` Lluís Batlle i Rossell
0 siblings, 0 replies; 5+ messages in thread
From: Lluís Batlle i Rossell @ 2012-09-07 9:41 UTC (permalink / raw)
To: Dave Young; +Cc: kexec
On Fri, Sep 07, 2012 at 05:34:33PM +0800, Dave Young wrote:
> On 09/07/2012 06:06 AM, Jerry Snitselaar wrote:
>
> > On Thu Sep 06 12, Lluís Batlle i Rossell wrote:
> >> Hello,
> >>
> >> 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.
> >>
> >> Regards,
> >> Lluís.
> >
> > 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[1] from Jacob Shin and see if it resolves the problem for you if you are experiencing your problem on a 3.5-rc1+ kernel.
> >
> > [1] https://lkml.org/lkml/2012/8/24/474
>
>
> He has updated the v5 patch set as below:
> https://lkml.org/lkml/2012/8/29/227
I was in 3.5.2 when I tried. Ok, I see these are very recent... I may prepare a
build including that.
Thank you!
Lluís.
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-09-07 9:41 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-09-06 9:43 Getting the kexec on panic Lluís Batlle i Rossell
2012-09-06 18:48 ` Daniel Baluta
2012-09-06 22:06 ` Jerry Snitselaar
2012-09-07 9:34 ` Dave Young
2012-09-07 9:41 ` Lluís Batlle i Rossell
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