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    SubjectRe: Oops running oprofile in 2.5.62
    John Levon wrote:
    > On Wed, Feb 26, 2003 at 10:29:43PM -0800, Dave Hansen wrote:
    >>I'm pretty sure it happened on this line in oprofile_add_sample():
    >> cpu_buf->buffer[cpu_buf->pos].eip = eip;
    >>Unable to handle kernel paging request at virtual address f8c3c000
    > Odd. UP or SMP ? Were you shutting down oprofile at the time (or did the
    > daemon crash ? check /var/lib/oprofile/oprofiled.log)

    16-way NUMAQ :) It was in the middle of a dbench run, so nothing
    critical was happening with oprofile.

    > The only thing I can think is that the buffer got freed then we got an
    > NMI afterwards (which obviously isn't supposed to happen...)

    The irqbalance code is causing some funniness on these machines, so it
    might be related. I'll speak up if I see it again.

    Dave Hansen

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