HI all,
I've just compiled 2.6.23.8 from kernel.org sources and I getting a
bunch of these soft lockups detected. This seems to be similar to
the problems reported here:
http://lkml.org/lkml/2007/11/19/345
but I am not as far as I am aware using the ondemand governor.
> cat /proc/acpi/processor/CPU0/info
processor id: 0
acpi id: 0
bus mastering control: no
power management: no
throttling control: no
limit interface: no
What is suspisious is "Clocksource tsc unstable".
Dump from dmsg follows. Any light people can shed on this much
appreciated.
Cheers,
Erik
[ 80.215847] Marking TSC unstable due to: cpufreq changes.
[ 80.217903] Time: acpi_pm clocksource has been installed.
[ 80.217908] BUG: soft lockup detected on CPU#0!
[ 80.217924] [<c014212b>] softlockup_tick+0xbb/0xf0
[ 80.217934] [<c0126152>] update_process_times+0x32/0x80
[ 80.217941] [<c0139395>] tick_sched_timer+0x75/0x1c0
[ 80.217952] [<c0133e70>] hrtimer_interrupt+0x170/0x1c0
[ 80.217960] [<c011119d>] smp_apic_timer_interrupt+0x3d/0x80
[ 80.217966] [<c0104bc8>] apic_timer_interrupt+0x28/0x30
[ 80.217973] [<c043007b>] pci_pcbios_init+0x18b/0x260
[ 80.217979] [<c0102fab>] default_idle+0x2b/0x40
[ 80.217984] [<c0103008>] cpu_idle+0x48/0x80
[ 80.217987] [<c041087f>] start_kernel+0x21f/0x2a0
[ 80.217992] [<c04102e0>] unknown_bootoption+0x0/0x1d0
[ 80.217997] =======================
[ 80.757447] Clocksource tsc unstable (delta = -99999062 ns)
[ 98.773859] BUG: soft lockup detected on CPU#0!
[ 98.773881] [<c014212b>] softlockup_tick+0xbb/0xf0
[ 98.773893] [<c0126152>] update_process_times+0x32/0x80
[ 98.773901] [<c0139395>] tick_sched_timer+0x75/0x1c0
[ 98.773913] [<c0133e70>] hrtimer_interrupt+0x170/0x1c0
[ 98.773922] [<c011119d>] smp_apic_timer_interrupt+0x3d/0x80
[ 98.773930] [<c0104bc8>] apic_timer_interrupt+0x28/0x30
[ 98.773938] [<c0340000>] hci_sock_setsockopt+0x0/0x1b0
[ 98.773947] =======================
[ 85.153581] BUG: soft lockup detected on CPU#0!
[ 85.153602] [<c014212b>] softlockup_tick+0xbb/0xf0
[ 85.153614] [<c0126152>] update_process_times+0x32/0x80
[ 85.153621] [<c0139395>] tick_sched_timer+0x75/0x1c0
[ 85.153631] [<c0133e70>] hrtimer_interrupt+0x170/0x1c0
[ 85.153639] [<c011119d>] smp_apic_timer_interrupt+0x3d/0x80
[ 85.153645] [<c0104bc8>] apic_timer_interrupt+0x28/0x30
[ 85.153653] [<c0340000>] hci_sock_setsockopt+0x0/0x1b0
[ 85.153660] =======================
[ 72.741364] usb 1-1: reset full speed USB device using uhci_hcd and address 2
[ 99.596976] BUG: soft lockup detected on CPU#0!
[ 99.596995] [<c014212b>] softlockup_tick+0xbb/0xf0
[ 99.597006] [<c0126152>] update_process_times+0x32/0x80
[ 99.597013] [<c0139395>] tick_sched_timer+0x75/0x1c0
[ 99.597024] [<c0133e70>] hrtimer_interrupt+0x170/0x1c0
[ 99.597032] [<c011119d>] smp_apic_timer_interrupt+0x3d/0x80
[ 99.597038] [<c0104bc8>] apic_timer_interrupt+0x28/0x30
[ 99.597045] [<c043007b>] pci_pcbios_init+0x18b/0x260
[ 99.597050] [<c0102fab>] default_idle+0x2b/0x40
[ 99.597054] [<c0103008>] cpu_idle+0x48/0x80
[ 99.597057] [<c041087f>] start_kernel+0x21f/0x2a0
[ 99.597063] [<c04102e0>] unknown_bootoption+0x0/0x1d0
[ 99.597068] =======================
[ 124.441285] BUG: soft lockup detected on CPU#0!
[ 124.441305] [<c014212b>] softlockup_tick+0xbb/0xf0
[ 124.441315] [<c0126152>] update_process_times+0x32/0x80
[ 124.441323] [<c0139395>] tick_sched_timer+0x75/0x1c0
[ 124.441336] [<c0133e70>] hrtimer_interrupt+0x170/0x1c0
[ 124.441345] [<c011119d>] smp_apic_timer_interrupt+0x3d/0x80
[ 124.441352] [<c0104bc8>] apic_timer_interrupt+0x28/0x30
[ 124.441360] [<c043007b>] pci_pcbios_init+0x18b/0x260
[ 124.441366] [<c0102fab>] default_idle+0x2b/0x40
[ 124.441371] [<c0103008>] cpu_idle+0x48/0x80
[ 124.441375] [<c041087f>] start_kernel+0x21f/0x2a0
[ 124.441381] [<c04102e0>] unknown_bootoption+0x0/0x1d0
[ 124.441388] =======================
--
-----------------------------------------------------------------
Erik de Castro Lopo
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Linux, the UNIX defragmentation tool.
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