Happens to me on 2.6.20-8. Feb 16 07:25:58 reactor kernel: [ 628.004000] BUG: soft lockup detected on CPU#0! Feb 16 07:25:58 reactor kernel: [ 628.004000] [softlockup_tick+156/240] softlockup_tick+0x9c/0xf0 Feb 16 07:25:58 reactor kernel: [ 628.004000] [update_process_times+51/128] update_process_times+0x33/0x80 Feb 16 07:25:58 reactor kernel: [ 628.004000] [smp_apic_timer_interrupt+112/128] smp_apic_timer_interrupt+0x70/0x80 Feb 16 07:25:58 reactor kernel: [ 628.004000] [apic_timer_interrupt+40/48] apic_timer_interrupt+0x28/0x30 Feb 16 07:25:58 reactor kernel: [ 628.004000] [try_to_del_timer_sync+7/80] try_to_del_timer_sync+0x7/0x50 Feb 16 07:25:58 reactor kernel: [ 628.004000] [del_timer_sync+14/32] del_timer_sync+0xe/0x20 Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a130bf>] MlmeAuthReqAction+0x5f/0x1e0 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a07b58>] MlmeQueueFull+0x28/0x40 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a07ccc>] MlmeEnqueue+0xbc/0xf0 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [do_timer+564/2080] do_timer+0x234/0x820 Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a129b0>] AuthTimeout+0x0/0x40 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a0ced3>] CntlWaitAuthProc+0x73/0x110 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a129b0>] AuthTimeout+0x0/0x40 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a047de>] StateMachinePerformAction+0x1e/0x30 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [<f8a09481>] MlmeHandler+0x151/0x170 [rt61] Feb 16 07:25:58 reactor kernel: [ 628.004000] [run_timer_softirq+303/416] run_timer_softirq+0x12f/0x1a0 Feb 16 07:25:58 reactor kernel: [ 628.004000] [timer_interrupt+89/176] timer_interrupt+0x59/0xb0 Feb 16 07:25:58 reactor kernel: [ 628.004000] [__do_softirq+130/256] __do_softirq+0x82/0x100 Feb 16 07:25:58 reactor kernel: [ 628.004000] [do_softirq+85/96] do_softirq+0x55/0x60 Feb 16 07:25:58 reactor kernel: [ 628.004000] [smp_apic_timer_interrupt+117/128] smp_apic_timer_interrupt+0x75/0x80 Feb 16 07:25:58 reactor kernel: [ 628.004000] [apic_timer_interrupt+40/48] apic_timer_interrupt+0x28/0x30 Feb 16 07:25:58 reactor kernel: [ 628.004000] [default_idle+0/96] default_idle+0x0/0x60 Feb 16 07:25:58 reactor kernel: [ 628.004000] [native_safe_halt+2/16] native_safe_halt+0x2/0x10 Feb 16 07:25:58 reactor kernel: [ 628.004000] [default_idle+61/96] default_idle+0x3d/0x60 Feb 16 07:25:58 reactor kernel: [ 628.004000] [cpu_idle+73/208] cpu_idle+0x49/0xd0 Feb 16 07:25:58 reactor kernel: [ 628.004000] [start_kernel+863/1056] start_kernel+0x35f/0x420 Feb 16 07:25:58 reactor kernel: [ 628.004000] [unknown_bootoption+0/608] unknown_bootoption+0x0/0x260
** Attachment added: "Kernel log after lockup" http://librarian.launchpad.net/6456293/kernel_log.txt -- BUG: soft lockup detected on CPU#0! https://launchpad.net/bugs/83009 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
