The patch titled secret patch has been added to the -mm tree. Its filename is clockevents-drivers-for-i386-mystery-fix.patch See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this ------------------------------------------------------ Subject: secret patch From: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Andrew, does the patch below fix your problem ? You should see the same weird behaviour when you run a plain -mm3 with CONFIG_SMP=y on that box. This moves update_process_times() to the lapic too. Cc: Ingo Molnar <mingo@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxx> --- arch/i386/kernel/apic.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff -puN arch/i386/kernel/apic.c~clockevents-drivers-for-i386-mystery-fix arch/i386/kernel/apic.c --- a/arch/i386/kernel/apic.c~clockevents-drivers-for-i386-mystery-fix +++ a/arch/i386/kernel/apic.c @@ -84,7 +84,10 @@ static void lapic_timer_setup(enum clock static struct clock_event_device lapic_clockevent = { .name = "lapic", .capabilities = CLOCK_CAP_NEXTEVT | CLOCK_CAP_PROFILE - | CLOCK_CAP_UPDATE, +#ifdef CONFIG_SMP + | CLOCK_CAP_UPDATE +#endif + , .shift = 32, .set_mode = lapic_timer_setup, .set_next_event = lapic_next_event, _ Patches currently in -mm which might be from tglx@xxxxxxxxxxxxx are origin.patch genirq-convert-the-x86_64-architecture-to-irq-chips.patch genirq-convert-the-i386-architecture-to-irq-chips.patch genirq-irq-convert-the-move_irq-flag-from-a-32bit-word-to-a-single-bit.patch genirq-irq-add-moved_masked_irq.patch genirq-x86_64-irq-reenable-migrating-irqs-to-other-cpus.patch genirq-msi-simplify-msi-enable-and-disable.patch genirq-msi-make-the-msi-boolean-tests-return-either-0-or-1.patch genirq-msi-implement-helper-functions-read_msi_msg-and-write_msi_msg.patch genirq-msi-refactor-the-msi_ops.patch genirq-msi-simplify-the-msi-irq-limit-policy.patch genirq-irq-add-a-dynamic-irq-creation-api.patch genirq-ia64-irq-dynamic-irq-support.patch genirq-i386-irq-dynamic-irq-support.patch genirq-x86_64-irq-dynamic-irq-support.patch genirq-msi-make-the-msi-code-irq-based-and-not-vector-based.patch genirq-x86_64-irq-move-msi-message-composition-into-io_apicc.patch genirq-i386-irq-move-msi-message-composition-into-io_apicc.patch genirq-msi-only-build-msi-apicc-on-ia64.patch genirq-x86_64-irq-remove-the-msi-assumption-that-irq-==-vector.patch genirq-i386-irq-remove-the-msi-assumption-that-irq-==-vector.patch genirq-irq-remove-msi-hacks.patch genirq-irq-generalize-the-check-for-hardirq_bits.patch genirq-x86_64-irq-make-the-external-irq-handlers-report-their-vector-not-the-irq-number.patch genirq-x86_64-irq-make-vector_irq-per-cpu.patch genirq-x86_64-irq-kill-gsi_irq_sharing.patch genirq-x86_64-irq-kill-irq-compression.patch msi-simplify-msi-sanity-checks-by-adding-with-generic-irq-code.patch msi-only-use-a-single-irq_chip-for-msi-interrupts.patch msi-refactor-and-move-the-msi-irq_chip-into-the-arch-code.patch msi-move-the-ia64-code-into-arch-ia64.patch htirq-tidy-up-the-htirq-code.patch genirq-clean-up-irq-flow-type-naming.patch gtod-exponential-update_wall_time.patch gtod-persistent-clock-support-core.patch gtod-persistent-clock-support-core-update.patch gtod-persistent-clock-support-i386.patch gtod-persistent-clock-support-i386-update.patch gtod-persistent-clock-support-i386-update-fix.patch time-uninline-jiffiesh.patch time-fix-msecs_to_jiffies-bug.patch time-fix-timeout-overflow.patch cleanup-uninline-irq_enter-and-move-it-into-a.patch dynticks-extend-next_timer_interrupt-to-use-a.patch hrtimers-namespace-and-enum-cleanup.patch hrtimers-clean-up-locking.patch hrtimers-state-tracking.patch hrtimers-state-tracking-fix.patch hrtimers-clean-up-callback-tracking.patch hrtimers-move-and-add-documentation.patch clockevents-core.patch clockevents-drivers-for-i386.patch clockevents-drivers-for-i386-fix.patch clockevents-drivers-for-i386-mystery-fix.patch high-res-timers-core.patch high-res-timers-core-fix.patch high-res-timers-core-fix-2.patch dynticks-core.patch dynticks-core-nmi-watchdog-fix.patch dynticks-core-nmi-watchdog-fix-2.patch dynticks-core-fix-idle-time-accounting.patch dyntick-add-nohz-stats-to-proc-stat.patch dynticks-i386-arch-code.patch high-res-timers-dynticks-enable-i386-support.patch debugging-feature-timer-stats.patch debugging-feature-timer-stats-fix.patch - To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html