I got this one today, that is slightly different. Doesn't cause the soft CPU hang... and the interrupt handler is alive enough for panic=60 to have rebooted the machine: [277933.276335] ------------[ cut here ]------------ [277933.285715] kernel BUG at block/elevator.c:767! [277933.294920] invalid opcode: 0000 [1] SMP [277933.303154] CPU 0 [277933.307376] Modules linked in: dm_round_robin dm_multipath sg sd_mod nfs lockd sunrpc ipv6 dm_snapshot parport_pc lp parport ide_cd cdrom amd_rng amd74xx psmouse pcspkr i2c_amd756 serio_raw k8temp generic i2c_core shpchp pci_hotplug tsdev evdev ext3 jbd mbcache ata_generic libata qla4xxx raid10 scsi_transport_iscsi cciss scsi_mod ohci_hcd floppy qla3xxx tg3 usbcore raid456 xor raid1 raid0 multipath linear md_mod thermal processor fan dm_mod capability commoncap vesafb cfbcopyarea cfbimgblt cfbfillrect fbcon tileblit font bitblit softcursor [277933.404996] Pid: 32120, comm: kjournald Not tainted 2.6.20-16-server #2 [277933.418351] RIP: 0010:[<ffffffff803340e8>] [<ffffffff803340e8>] elv_dequeue_request+0x8/0x60 [277933.435550] RSP: 0018:ffffffff80617d38 EFLAGS: 00010046 [277933.446311] RAX: ffff81007db5e030 RBX: ffff81007c4a9340 RCX: 000000000000000f [277933.460707] RDX: ffff81003ce8f298 RSI: ffff81003ce8f298 RDI: ffff810079372d18 [277933.475103] RBP: ffff81003ce8f298 R08: ffff81008c150800 R09: 0000000000000000 [277933.489499] R10: 000000000000000c R11: ffffffff802466a0 R12: ffff81007dd8e000 [277933.503893] R13: ffff810079372d18 R14: ffff81003ce8f298 R15: ffff81007dd8e0e8 [277933.518289] FS: 00002b864300e6f0(0000) GS:ffffffff80562000(0000) knlGS:00000000556d86c0 [277933.534585] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [277933.546213] CR2: 00002aaaac00b000 CR3: 00000000c9dbb000 CR4: 00000000000006e0 [277933.560609] Process kjournald (pid: 32120, threadinfo ffff8100cf298000, task ffff8100f382e860) [277933.577944] Stack: ffffffff8033834b ffff810079372d18 ffff810079372d18 ffff81007d9d8000 [277933.594244] ffffffff88149f56 ffff8100c7aa3cc0 ffff810079372d18 0000000000000286 [277933.609297] ffff81007dd8e000 ffff81007d9d8040 ffff810079372d18 0000000000000000 [277933.623968] Call Trace: [277933.629401] <IRQ> [<ffffffff8033834b>] blk_queue_start_tag+0xab/0xd0 [277933.642643] [<ffffffff88149f56>] :scsi_mod:scsi_request_fn+0x166/0x3e0 [277933.655999] [<ffffffff8025f753>] blk_run_queue+0x43/0x80 [277933.666938] [<ffffffff8814830a>] :scsi_mod:scsi_run_queue+0x17a/0x1f0 [277933.680140] [<ffffffff8814881b>] :scsi_mod:scsi_next_command+0x3b/0x60 [277933.693514] [<ffffffff88148aa4>] :scsi_mod:scsi_end_request+0xd4/0x100 [277933.706872] [<ffffffff88148c91>] :scsi_mod:scsi_io_completion+0x161/0x390 [277933.720760] [<ffffffff8027a864>] smp_local_timer_interrupt+0x34/0x60 [277933.733769] [<ffffffff8027afde>] smp_apic_timer_interrupt+0x5e/0x80 [277933.746644] [<ffffffff8839c900>] :sd_mod:sd_rw_intr+0x240/0x290 [277933.758794] [<ffffffff88149432>] :scsi_mod:scsi_device_unbusy+0x82/0xb0 [277933.772319] [<ffffffff802393c7>] blk_done_softirq+0x67/0x80 [277933.783773] [<ffffffff80211bff>] __do_softirq+0x5f/0xd0 [277933.794534] [<ffffffff8026223c>] call_softirq+0x1c/0x28 [277933.805295] [<ffffffff8027028c>] do_softirq+0x2c/0x90 [277933.815710] [<ffffffff802703c9>] do_IRQ+0xd9/0x100 [277933.825608] [<ffffffff80261631>] ret_from_intr+0x0/0xa [277933.836195] <EOI> [<ffffffff80333f50>] elv_rb_latter_request+0x0/0x30 [277933.849591] [<ffffffff8021a9b0>] submit_bh+0x0/0x110 [277933.859837] [<ffffffff881e149f>] :jbd:journal_do_submit_data+0x2f/0x40 [277933.873191] [<ffffffff881e1978>] :jbd:journal_commit_transaction+0x4a8/0x10c0 [277933.887760] [<ffffffff802a3850>] autoremove_wake_function+0x0/0x30 [277933.900428] [<ffffffff881e5a10>] :jbd:kjournald+0xe0/0x230 [277933.911702] [<ffffffff802a3850>] autoremove_wake_function+0x0/0x30 [277933.924370] [<ffffffff881e5930>] :jbd:kjournald+0x0/0x230 [277933.935474] [<ffffffff802a3670>] keventd_create_kthread+0x0/0x90 [277933.947793] [<ffffffff80233e8b>] kthread+0xdb/0x120 [277933.957865] [<ffffffff80261ec8>] child_rip+0xa/0x12 [277933.967933] [<ffffffff802a3670>] keventd_create_kthread+0x0/0x90 [277933.980255] [<ffffffff80233db0>] kthread+0x0/0x120 [277933.990148] [<ffffffff80261ebe>] child_rip+0x0/0x12 [277934.000218] [277934.003364] [277934.003365] Code: 0f 0b 66 0f 1f 44 00 00 eb fe 48 83 7e 70 00 74 09 0f 0b 0f [277934.021862] RIP [<ffffffff803340e8>] elv_dequeue_request+0x8/0x60 [277934.034388] RSP <ffffffff80617d38> [277934.041951] <0>Kernel panic - not syncing: Aiee, killing interrupt handler! [277934.056205] <0>Rebooting in 60 seconds..
-- Kernel soft lockup detected on CPU#0 under heavy I/O on AMD64 Feisty, elevator.c https://bugs.launchpad.net/bugs/118833 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
