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    SubjectRe: [Bug #11569] Don't complain about disabled irqs when the system has paniced
    Date
    On Monday 06 October 2008 17:02, Andi Kleen wrote:
    > On Sat, Oct 04, 2008 at 07:32:54PM +0200, Rafael J. Wysocki wrote:
    > > This message has been generated automatically as a part of a report
    > > of recent regressions.
    > >
    > > The following bug entry is on the current list of known regressions
    > > from 2.6.26. Please verify if it still should be listed and let me know
    > > (either way).
    > >
    > >
    > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=11569
    > > Subject : Don't complain about disabled irqs when the system has paniced
    > > Submitter : Andi Kleen <andi@firstfloor.org>
    > > Date : 2008-09-02 13:49 (33 days old)
    > > References : http://marc.info/?l=linux-kernel&m=122036356127282&w=4
    >
    > The problem is actually worse than this description suggests. I updated
    > the bugzilla entry now.
    >
    > The new smp_call_function() that is called from panic is quite unsuitable
    > for this task:
    > - It allocates memory (not a good idea in panic0
    > - It complains about interrupt off
    > - This whole thing breaks at least machine checks

    Why doesn't it use something like nmi_shootdown_cpus on panic rather than
    the (I guess less reliable and longer latency) smp_send_stop?


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