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, Llu?s 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, > >> Llu?s. > > > > 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! Llu?s.
