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    SubjectRe: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00

    * Ingo Molnar <> wrote:

    > > There doesn't seem to be any actual lockups, just messages. I will try
    > > disabling the above when I get home this evening. Can't get to the
    > > system right now.
    > i tweaked the softlockup detector in the last patch a bit (to fix
    > false positives under very high loads), might have broken it on SMP.

    yeah - found a bug that could explain the symptoms on your system.
    Called softlockup_tick() from the global timer interrupt, instead of the
    per-CPU timer interrupt. So on SMP the other CPUs would not see any
    softlockup ticks at all, and would incorrectly report soft lockups.
    This bug is fixed in the -48-36 patch i just uploaded.

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      Last update: 2005-06-17 13:22    [W:0.034 / U:39.028 seconds]
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