Earlier, I wrote: > I have hacked up little a test program which hosed my board within > seconds. The system is not completely hung. However: > > - I can't kill the test program with Ctrl-C. > - I can log into the box with telnet. > - If I run "ps aux" to see all processes, the ps command hangs partway > through the table, and cannot be killed with Ctrl-C. > - System hangs on soft reboot attempt; requires hard reset. Furthermore: my console loglevel was too high to see the crash on the serial console, but, surely enough, the syslog has this: Nov 19 14:19:57 [kernel] [14:19:57.846017] BUG: soft lockup detected on CPU#1! Nov 19 14:19:57 [kernel] [14:19:57.846051] Call Trace: Nov 19 14:19:58 [kernel] [14:19:57.846069] [<ffffffff8016de8c>] softlockup_tick+0x1bc/0x208 Nov 19 14:19:58 [kernel] [14:19:57.846112] [<ffffffff8014cc54>] update_process_times+0x9c/0xe8 Nov 19 14:19:58 [kernel] [14:19:57.846147] [<ffffffff801098bc>] ll_local_timer_interrupt+0x94/0xa8 Nov 19 14:19:58 [kernel] [14:19:57.846180] [<ffffffff801098bc>] ll_local_timer_interrupt+0x94/0xa8 Nov 19 14:19:58 [kernel] [14:19:57.846205] [<ffffffff801026a0>] plat_irq_dispatch+0x120/0x1a0 Nov 19 14:19:58 [kernel] [14:19:57.846232] [<ffffffff80163f28>] compat_sys_futex+0x0/0x188 Nov 19 14:19:58 [kernel] [14:19:57.846258] [<ffffffff801637e0>] do_futex+0x8f8/0xb58 Nov 19 14:19:58 [kernel] [14:19:57.846281] [<ffffffff8011db28>] tlb_do_page_fault_1+0x110/0x128 Nov 19 14:19:58 [kernel] [14:19:57.846317] [<ffffffff80163758>] do_futex+0x870/0xb58 Nov 19 14:19:58 [kernel] [14:19:57.846339] [<ffffffff80163f28>] compat_sys_futex+0x0/0x188 Nov 19 14:19:58 [kernel] [14:19:57.846364] [<ffffffff80163170>] do_futex+0x288/0xb58 Nov 19 14:19:58 [kernel] [14:19:57.846385] [<ffffffff801637e0>] do_futex+0x8f8/0xb58 Nov 19 14:19:58 [kernel] [14:19:57.846407] [<ffffffff80163764>] do_futex+0x87c/0xb58 Nov 19 14:19:58 [kernel] [14:19:57.846430] [<ffffffff80177500>] __alloc_pages+0x70/0x398 Nov 19 14:19:58 [kernel] [14:19:57.846456] [<ffffffff80130d1c>] try_to_wake_up+0x3c4/0x4f8 Nov 19 14:19:58 [kernel] [14:19:57.846489] [<ffffffff802f3c28>] __up_read+0xe8/0x130 Nov 19 14:19:58 [kernel] [14:19:57.846528] [<ffffffff80163fac>] compat_sys_futex+0x84/0x188 Nov 19 14:19:58 [kernel] [14:19:57.846552] [<ffffffff80116314>] handle_sysn32+0x54/0xb0 Nov 19 14:19:58 [kernel] [14:19:57.846578] [<ffffffff80163f28>] compat_sys_futex+0x0/0x188
