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    SubjectRe: [PATCH] sysrq show-all-cpus
    On Tuesday 11 March 2008 05:03, Rik van Riel wrote:
    > SysRQ-P is not always useful on SMP systems, since it usually ends up
    > showing the backtrace of a CPU that is doing just fine, instead of the
    > backtrace of the CPU that is having problems.
    > This patch adds SysRQ show-all-cpus(L), which shows the backtrace of every
    > active CPU in the system. It skips idle CPUs because some SMP systems are
    > just too large and we already know what the backtrace of the idle task
    > looks like.

    Yeah we need something like this. I prefer mine though ;) It shows
    registers as well as stack...

    It prints just a single CPU at a time, but cycles through each one.
    An alternative might be to have one sysrq key used to cycle between
    CPUs, and sysrq+P could then just print out a trace from the selected

     \ /
      Last update: 2008-03-11 09:17    [W:0.021 / U:33.128 seconds]
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