Public bug reported: Binary package hint: linux-source-2.6.20
Description: when using firefox to check java installation at java.sun.com and using firefox wizard to try and install missing java plugin, the system had a soft lockup. Step to reproduce: 1) Stat firefox 2) Visit http://java.com/en/download/installed.jsp?detect=jre&try=1 which will check if java is installed correctly 3) Page comes back with install instructions, but firefox requests confirmation of installing "missing plugins" Expected result: Page to come back and say: Java not installed with instructions how to install. Actual Results: Page displaying spinning green circle, spinning green circle never finished and believed to have caused soft lockup. Screen froze, caps lock failed to toggle. Machine was responsive to ping. Then it came back alive. How reproducible is this problem: I have been unable to reproduce this problem since. Additional Information: This appeared in dmesg: [ 201.200814] BUG: soft lockup detected on CPU#1! [ 201.200823] [ 201.200824] Call Trace: [ 201.200828] <IRQ> [<ffffffff802bc34a>] softlockup_tick+0xfa/0x120 [ 201.200863] [<ffffffff80211c9f>] __do_softirq+0x5f/0xd0 [ 201.200875] [<ffffffff80299277>] update_process_times+0x57/0x90 [ 201.200887] [<ffffffff8027a664>] smp_local_timer_interrupt+0x34/0x60 [ 201.200895] [<ffffffff8027ade9>] smp_apic_timer_interrupt+0x59/0x80 [ 201.200906] [<ffffffff80261ce6>] apic_timer_interrupt+0x66/0x70 [ 201.200911] <EOI> [<ffffffff80234d16>] do_setitimer+0x76/0x4c0 [ 201.200942] [<ffffffff80234d6f>] do_setitimer+0xcf/0x4c0 [ 201.200957] [<ffffffff802938e2>] sys_setitimer+0xb2/0xd0 [ 201.200980] [<ffffffff8026111e>] system_call+0x7e/0x83 [ 201.201003] [ 201.201007] BUG: soft lockup detected on CPU#0! [ 201.201011] [ 201.201013] Call Trace: [ 201.201016] <IRQ> [<ffffffff802bc34a>] softlockup_tick+0xfa/0x120 [ 201.201038] [<ffffffff80299277>] update_process_times+0x57/0x90 [ 201.201049] [<ffffffff8027a664>] smp_local_timer_interrupt+0x34/0x60 [ 201.201057] [<ffffffff8027ade9>] smp_apic_timer_interrupt+0x59/0x80 [ 201.201067] [<ffffffff80261ce6>] apic_timer_interrupt+0x66/0x70 [ 201.201076] [<ffffffff80319f90>] dummy_task_kill+0x0/0x10 [ 201.201094] [<ffffffff80267b48>] _spin_unlock_irqrestore+0x8/0x10 [ 201.201106] [<ffffffff803bb6bd>] serio_interrupt+0x7d/0xa0 [ 201.201119] [<ffffffff803bc506>] i8042_interrupt+0x226/0x250 [ 201.201135] [<ffffffff80210769>] handle_IRQ_event+0x29/0x60 [ 201.201147] [<ffffffff802be0e9>] handle_edge_irq+0xf9/0x150 [ 201.201153] [<ffffffff8028ba1c>] task_rq_lock+0x4c/0x90 [ 201.201164] [<ffffffff80270189>] do_IRQ+0x89/0x100 [ 201.201174] [<ffffffff80261631>] ret_from_intr+0x0/0xa [ 201.201182] [<ffffffff80319f90>] dummy_task_kill+0x0/0x10 [ 201.201200] [<ffffffff80267b48>] _spin_unlock_irqrestore+0x8/0x10 [ 201.201212] [<ffffffff8025dbde>] group_send_sig_info+0x6e/0x90 [ 201.201227] [<ffffffff8029b825>] send_group_sig_info+0x35/0x50 [ 201.201237] [<ffffffff80293c4b>] it_real_fn+0x2b/0x70 [ 201.201242] [<ffffffff80298eb9>] do_timer+0x99/0x360 [ 201.201247] [<ffffffff80293c20>] it_real_fn+0x0/0x70 [ 201.201255] [<ffffffff80251673>] hrtimer_run_queues+0x103/0x160 [ 201.201267] [<ffffffff80298ac3>] run_timer_softirq+0x23/0x1c0 [ 201.201272] [<ffffffff802714ab>] main_timer_handler+0x1fb/0x420 [ 201.201286] [<ffffffff80211c9f>] __do_softirq+0x5f/0xd0 [ 201.201299] [<ffffffff8026223c>] call_softirq+0x1c/0x28 [ 201.201308] [<ffffffff8027009c>] do_softirq+0x2c/0x90 [ 201.201316] [<ffffffff8027adee>] smp_apic_timer_interrupt+0x5e/0x80 [ 201.201326] [<ffffffff80261ce6>] apic_timer_interrupt+0x66/0x70 [ 201.201331] <EOI> [<ffffffff88030945>] :processor:acpi_processor_idle+0x286/0x485 [ 201.201374] [<ffffffff8803093b>] :processor:acpi_processor_idle+0x27c/0x485 [ 201.201380] [<ffffffff80265391>] __sched_text_start+0x1/0x82b [ 201.201392] [<ffffffff880306bf>] :processor:acpi_processor_idle+0x0/0x485 [ 201.201403] [<ffffffff8024b15b>] cpu_idle+0x9b/0xd0 [ 201.201414] [<ffffffff805707ca>] start_kernel+0x24a/0x260 [ 201.201424] [<ffffffff80570163>] _sinittext+0x163/0x170 [ 201.201434] Version information: Kernal version 2.6.20-16-generic (feisty) ** Affects: linux-source-2.6.20 (Ubuntu) Importance: Undecided Status: New -- soft lockup during install wizard for missing java in firefox https://bugs.launchpad.net/bugs/132173 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
