Messages in this thread | | | Date | Wed, 5 Sep 2012 23:34:25 +0800 | Subject | Re: kexec/kdump kernel fails to start | From | Cong Wang <> |
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On Wed, Sep 5, 2012 at 1:32 AM, Flavio Leitner <fbl@redhat.com> wrote: > Hi folks, > > I have system that no longer boots kdump kernel. Basically, > > # echo c > /proc/sysrq-trigger > > to dump a vmcore doesn't work. It just hangs after showing the usual > panic messages. I've bisected the problem and the commit introducing > the issue is the one below. > > Any idea? > > commit 722bc6b16771ed80871e1fd81c86d3627dda2ac8 > Author: WANG Cong <xiyou.wangcong@gmail.com> 2012-03-05 20:05:13 > Committer: Ingo Molnar <mingo@elte.hu> 2012-03-06 05:38:26 > Parent: 550cf00dbc8ee402bef71628cb71246493dd4500 (Merge tag 'mmc-fixes-for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc) > Child: a6fca40f1d7f3e232c9de27c1cebbb9f787fbc4f (x86, tlb: Switch cr3 in leave_mm() only when needed) > Branches: master, remotes/origin/master > Follows: v3.3-rc6 > Precedes: v3.5-rc1 > > x86/mm: Fix the size calculation of mapping tables
There was some attempt to fix this: https://patchwork.kernel.org/patch/1195751/
but for some reason it is not accepted.
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