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Date: Thu, 25 Mar 2010 16:04:52 +0800 From: Li Zefan <lizf@...fujitsu.com> To: Mike Galbraith <efault@....de> CC: LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>, Frederic Weisbecker <fweisbec@...il.com>, Arnaldo Carvalho de Melo <acme@...hat.com>, Paul Mackerras <paulus@...ba.org> Subject: Re: [BUG] perf: hard lockup when using perf-sched Mike Galbraith wrote: > On Wed, 2010-03-24 at 08:32 +0100, Mike Galbraith wrote: > >> I just saw this, hunted down your testcase and tried it here. Looks >> like perf_output_lock() wedged box. > > (turns on frame pointers, and adds noinline) > Thanks! Then who's going to fix this... --Li > [ 90.276644] BUG: NMI Watchdog detected LOCKUP on CPU2, ip ffffffff812b54a8, registers: > [ 90.276644] CPU 2 > [ 90.276644] Modules linked in: cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave acpi_cpufreq snd_pcm_oss snd_mixer_oss microcode snd_seq snd_seq_device fuse loop dm_mod snd_hda_codec_realtek snd_hda_intel firewire_ohci firewire_core snd_hda_codec usbmouse crc_itu_t snd_hwdep snd_pcm usb_storage snd_timer sr_mod usbhid ohci1394 snd rtc_cmos soundcore rtc_core ieee1394 usb_libusual thermal i2c_i801 processor button e1000e snd_page_alloc cdrom rtc_lib hid sg uhci_hcd ehci_hcd sd_mod usbcore edd fan ext3 ext2 mbcache jbd ahci libata scsi_mod > [ 90.276644] > [ 90.276644] Pid: 20237, comm: forkbomb Not tainted 2.6.34-smpx #1477 MS-7502/MS-7502 > [ 90.276644] RIP: 0010:[<ffffffff812b54a8>] [<ffffffff812b54a8>] _raw_spin_lock+0x12/0x1a > [ 90.276644] RSP: 0018:ffff880001703ee8 EFLAGS: 00000097 > [ 90.276644] RAX: 000000000000c3c2 RBX: ffff880001712e40 RCX: 0000001504ab3a62 > [ 90.276644] RDX: 0000001504ab3b83 RSI: 0000000000000026 RDI: ffff880001712e40 > [ 90.276644] RBP: ffff880001703ee8 R08: 000000001ba05e30 R09: ffff880001703f88 > [ 90.276644] R10: 0000000000000038 R11: 0000000000000038 R12: 0000000000000002 > [ 90.276644] R13: ffff8800b48de2d0 R14: 0000000000000038 R15: 00000000ffffffe4 > [ 90.276644] FS: 0000000000000000(0000) GS:ffff880001700000(0000) knlGS:0000000000000000 > [ 90.276644] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 90.276644] CR2: 00007ff05702a4a8 CR3: 0000000001430000 CR4: 00000000000006e0 > [ 90.276644] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 90.276644] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 90.276644] Process forkbomb (pid: 20237, threadinfo ffff8800bd3f8000, task ffff8800b48de2d0) > [ 90.276644] Stack: > [ 90.276644] ffff880001703f18 ffffffff8102ecc4 ffff8800b48de2d0 ffff8800b48de2d0 > [ 90.276644] <0> 0000000000000000 0000000000000002 ffff880001703f48 ffffffff8103f082 > [ 90.276644] <0> ffffea00029f9ee0 ffff88000170d170 ffff88000170d170 0000000000000002 > [ 90.276644] Call Trace: > [ 90.276644] <IRQ> > [ 90.276644] [<ffffffff8102ecc4>] scheduler_tick+0x3c/0x1e6 > [ 90.276644] [<ffffffff8103f082>] update_process_times+0x4b/0x5b > [ 90.276644] [<ffffffff81054229>] tick_periodic+0x5d/0x5f > [ 90.276644] [<ffffffff8105428e>] tick_handle_periodic+0x21/0x6e > [ 90.276644] [<ffffffff810167a7>] smp_apic_timer_interrupt+0x83/0x96 > [ 90.276644] [<ffffffff81002813>] apic_timer_interrupt+0x13/0x20 > [ 90.276644] <EOI> > [ 90.276644] [<ffffffff8107c1df>] ? perf_output_unlock+0x27/0x122 > [ 90.276644] [<ffffffff8107d45f>] ? perf_swevent_overflow+0x58/0x76 > [ 90.276644] [<ffffffff8107c6c6>] perf_output_begin+0x16e/0x180 > [ 90.276644] [<ffffffff8107d5a2>] ? perf_swevent_ctx_event+0xdd/0xee > [ 90.276644] [<ffffffff8107c80d>] perf_event_task_ctx+0xf8/0x110 > [ 90.276644] [<ffffffff8104ed00>] ? sched_clock_cpu+0xc0/0xce > [ 90.276644] [<ffffffff8107c8b7>] perf_event_task+0x92/0xc3 > [ 90.276644] [<ffffffff8107e25e>] perf_event_exit_task+0x27/0x112 > [ 90.276644] [<ffffffff810c6dca>] ? free_fs_struct+0x2d/0x31 > [ 90.276644] [<ffffffff81034e4e>] do_exit+0x264/0x67a > [ 90.276644] [<ffffffff8101cd6f>] ? do_page_fault+0x222/0x253 > [ 90.276644] [<ffffffff810354e7>] do_group_exit+0x6f/0x98 > [ 90.276644] [<ffffffff81035522>] sys_exit_group+0x12/0x16 > [ 90.276644] [<ffffffff81001f2b>] system_call_fastpath+0x16/0x1b > [ 90.276644] Code: 00 00 75 05 f0 66 0f b1 17 0f 94 c2 0f b6 c2 85 c0 c9 0f 95 c0 0f b6 c0 c3 55 b8 00 01 00 00 48 89 e5 f0 66 0f c1 07 38 e0 74 06 <f3> 90 8a 07 eb f6 c9 c3 55 48 89 e5 9c 58 fa ba 00 01 00 00 f0 > [ 90.276639] BUG: NMI Watchdog detected LOCKUP > [ 90.276644] ---[ end trace ef30915e055ad1b9 ]--- > [ 90.276639] on CPU1, ip ffffffff81079014, registers: > [ 90.276639] CPU 1 > [ 90.276639] Modules linked in: cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave acpi_cpufreq snd_pcm_oss snd_mixer_oss microcode snd_seq snd_seq_device fuse loop dm_mod snd_hda_codec_realtek snd_hda_intel firewire_ohci firewire_core snd_hda_codec usbmouse crc_itu_t snd_hwdep snd_pcm usb_storage snd_timer sr_mod usbhid ohci1394 snd rtc_cmos soundcore rtc_core ieee1394 usb_libusual thermal i2c_i801 processor button e1000e snd_page_alloc cdrom rtc_lib hid sg uhci_hcd ehci_hcd sd_mod usbcore edd fan ext3 ext2 mbcache jbd ahci libata scsi_mod > [ 90.276639] > [ 90.276639] Pid: 0, comm: swapper Tainted: G D 2.6.34-smpx #1477 MS-7502/MS-7502 > [ 90.276639] RIP: 0010:[<ffffffff81079014>] [<ffffffff81079014>] perf_output_lock+0x30/0x4e > [ 90.276639] RSP: 0018:ffff880001683a00 EFLAGS: 00000082 > [ 90.276639] RAX: 0000000000000002 RBX: ffff880001683ab0 RCX: ffff8800bc454000 > [ 90.276639] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff880001683ab0 > [ 90.276639] RBP: ffff880001683a10 R08: 0000000000000001 R09: ffff880001683ae0 > [ 90.276639] R10: 0000000000000200 R11: 0000000000000000 R12: ffff8800bc454000 > [ 90.276639] R13: ffff880037788000 R14: 0000000000000070 R15: 00000000ffffffe4 > [ 90.276639] FS: 0000000000000000(0000) GS:ffff880001680000(0000) knlGS:0000000000000000 > [ 90.276639] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 90.276639] CR2: 00007ff05702a4a8 CR3: 0000000001430000 CR4: 00000000000006e0 > [ 90.276639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 90.276639] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 90.276639] Process swapper (pid: 0, threadinfo ffff8800bf888000, task ffff8800bf8422e0) > [ 90.276639] Stack: > [ 90.276639] 00000001374fb210 00000002ffffffff ffff880001683a90 ffffffff8107c5cf > [ 90.276639] <0> ffff880001683a40 000000000002b3c6 ffff880001683a40 ffff880001683ae0 > [ 90.276639] <0> ffff880001683a90 ffffffff8107d13c ffffffff8104eb6b ffff8800bf8422e0 > [ 90.276639] Call Trace: > [ 90.276639] <IRQ> > [ 90.276639] [<ffffffff8107c5cf>] perf_output_begin+0x77/0x180 > [ 90.276639] [<ffffffff8107d13c>] ? perf_prepare_sample+0xb5/0x1d3 > [ 90.276639] [<ffffffff8104eb6b>] ? sched_clock_local+0x12/0x75 > [ 90.276639] [<ffffffff8107d3c5>] __perf_event_overflow+0x16b/0x1ad > [ 90.276639] [<ffffffff8107d13c>] ? perf_prepare_sample+0xb5/0x1d3 > [ 90.276639] [<ffffffff8107d45f>] perf_swevent_overflow+0x58/0x76 > [ 90.276639] [<ffffffff8107d4c3>] perf_swevent_add+0x46/0x48 > [ 90.276639] [<ffffffff8107d5a2>] perf_swevent_ctx_event+0xdd/0xee > [ 90.276639] [<ffffffff8107d601>] do_perf_sw_event+0x4e/0x8c > [ 90.276639] [<ffffffff8107d670>] perf_tp_event+0x31/0x33 > [ 90.276639] [<ffffffff8102c425>] ? try_to_wake_up+0x165/0x226 > [ 90.276639] [<ffffffff810752e6>] ? perf_trace_buf_prepare+0x8e/0xb5 > [ 90.276639] [<ffffffff81024142>] perf_trace_templ_sched_wakeup_template+0xca/0xe0 > [ 90.276639] [<ffffffff81024167>] perf_trace_sched_wakeup+0xf/0x11 > [ 90.276639] [<ffffffff8102c425>] try_to_wake_up+0x165/0x226 > [ 90.276639] [<ffffffff8102c505>] wake_up_process+0x10/0x12 > [ 90.276639] [<ffffffff8102df50>] load_balance+0x3d3/0x47f > [ 90.276639] [<ffffffff8107cc69>] ? perf_event_task_tick+0x6e/0x124 > [ 90.276639] [<ffffffff8102e0d6>] rebalance_domains+0xda/0x14a > [ 90.276639] [<ffffffff8102e18a>] run_rebalance_domains+0x44/0xd4 > [ 90.276639] [<ffffffff810377e7>] __do_softirq+0xd7/0x193 > [ 90.276639] [<ffffffff810050a5>] ? timer_interrupt+0x19/0x20 > [ 90.276639] [<ffffffff81002d4c>] call_softirq+0x1c/0x28 > [ 90.276639] [<ffffffff810049fa>] do_softirq+0x33/0x69 > [ 90.276639] [<ffffffff8103793d>] irq_exit+0x36/0x78 > [ 90.276639] [<ffffffff81004733>] do_IRQ+0xa7/0xbe > [ 90.276639] [<ffffffff812b5893>] ret_from_intr+0x0/0xa > [ 90.276639] <EOI> > [ 90.276639] [<ffffffff810093ca>] ? mwait_idle+0xa2/0xa9 > [ 90.276639] [<ffffffff8104e1b2>] ? atomic_notifier_call_chain+0x13/0x15 > [ 90.276639] [<ffffffff81000736>] cpu_idle+0x52/0x6f > [ 90.276639] [<ffffffff812b0d53>] start_secondary+0x1ae/0x1b2 > [ 90.276639] Code: 83 ec 10 c7 47 28 00 00 00 00 48 8b 4f 08 65 8b 14 25 58 d1 00 00 c7 45 f8 ff ff ff ff 89 55 f4 8b 75 f4 8b 45 f8 f0 0f b1 71 38 <89> 45 fc 8b 45 fc 83 f8 ff 75 09 c7 47 28 01 00 00 00 eb 08 39 > [ 90.276639] ---[ end trace ef30915e055ad1ba ]--- > [ 90.276644] BUG: NMI Watchdog detected LOCKUP on CPU3, ip ffffffff81079014, registers: > [ 90.276644] CPU 3 > [ 90.276644] Modules linked in: cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave acpi_cpufreq snd_pcm_oss snd_mixer_oss microcode snd_seq snd_seq_device fuse loop dm_mod snd_hda_codec_realtek snd_hda_intel firewire_ohci firewire_core snd_hda_codec usbmouse crc_itu_t snd_hwdep snd_pcm usb_storage snd_timer sr_mod usbhid ohci1394 snd rtc_cmos soundcore rtc_core ieee1394 usb_libusual thermal i2c_i801 processor button e1000e snd_page_alloc cdrom rtc_lib hid sg uhci_hcd ehci_hcd sd_mod usbcore edd fan ext3 ext2 mbcache jbd ahci libata scsi_mod > [ 90.276644] > [ 90.276644] Pid: 5146, comm: forkbomb Tainted: G D 2.6.34-smpx #1477 MS-7502/MS-7502 > [ 90.276644] RIP: 0010:[<ffffffff81079014>] [<ffffffff81079014>] perf_output_lock+0x30/0x4e > [ 90.276644] RSP: 0018:ffff880001783b88 EFLAGS: 00000082 > [ 90.276644] RAX: 0000000000000002 RBX: ffff880001783c38 RCX: ffff8800bc454000 > [ 90.276644] RDX: 0000000000000003 RSI: 0000000000000003 RDI: ffff880001783c38 > [ 90.276644] RBP: ffff880001783b98 R08: 0000000000000001 R09: ffff880001783c68 > [ 90.276644] R10: 0000000000000003 R11: 0000000000000246 R12: ffff8800bc454000 > [ 90.276644] R13: ffff880037788000 R14: 0000000000000078 R15: 00000000ffffffe4 > [ 90.276644] FS: 00007ff057202700(0000) GS:ffff880001780000(0000) knlGS:0000000000000000 > [ 90.276644] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 90.276644] CR2: 00007ff05702be04 CR3: 00000000bf8c4000 CR4: 00000000000006e0 > [ 90.276644] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 90.276644] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 90.276644] Process forkbomb (pid: 5146, threadinfo ffff8800bbebc000, task ffff8800bc128000) > [ 90.276644] Stack: > [ 90.276644] 000000030178f9e0 00000002ffffffff ffff880001783c18 ffffffff8107c5cf > [ 90.276644] <0> ffff880001783bc8 000000000002b3c6 ffff880001783bc8 ffff880001783c68 > [ 90.276644] <0> ffff880001783c18 ffffffff8107d13c ffff880001783be8 ffff8800bc128000 > [ 90.276644] Call Trace: > [ 90.276644] <IRQ> > [ 90.276644] [<ffffffff8107c5cf>] perf_output_begin+0x77/0x180 > [ 90.276644] [<ffffffff8107d13c>] ? perf_prepare_sample+0xb5/0x1d3 > [ 90.276644] [<ffffffff8107d3c5>] __perf_event_overflow+0x16b/0x1ad > [ 90.276644] [<ffffffff8107d45f>] perf_swevent_overflow+0x58/0x76 > [ 90.276644] [<ffffffff8107d4c3>] perf_swevent_add+0x46/0x48 > [ 90.276644] [<ffffffff8107d5a2>] perf_swevent_ctx_event+0xdd/0xee > [ 90.276644] [<ffffffff8107d601>] do_perf_sw_event+0x4e/0x8c > [ 90.276644] [<ffffffff8107d670>] perf_tp_event+0x31/0x33 > [ 90.276644] [<ffffffff810263b8>] ? task_tick_fair+0x47/0x103 > [ 90.276644] [<ffffffff810752e6>] ? perf_trace_buf_prepare+0x8e/0xb5 > [ 90.276644] [<ffffffff810247ff>] perf_trace_sched_stat_runtime+0xc4/0xdc > [ 90.276644] [<ffffffff81026227>] update_curr+0x87/0xc8 > [ 90.276644] [<ffffffff810263b8>] task_tick_fair+0x47/0x103 > [ 90.276644] [<ffffffff8102ed61>] scheduler_tick+0xd9/0x1e6 > [ 90.276644] [<ffffffff8103f082>] update_process_times+0x4b/0x5b > [ 90.276644] [<ffffffff81054229>] tick_periodic+0x5d/0x5f > [ 90.276644] [<ffffffff8105428e>] tick_handle_periodic+0x21/0x6e > [ 90.276644] [<ffffffff810167a7>] smp_apic_timer_interrupt+0x83/0x96 > [ 90.276644] [<ffffffff81002813>] apic_timer_interrupt+0x13/0x20 > [ 90.276644] <EOI> > [ 90.276644] [<ffffffff810a493a>] ? kmem_cache_alloc+0x6a/0xdc > [ 90.276644] [<ffffffff8109ba31>] anon_vma_fork+0x40/0xca > [ 90.276644] [<ffffffff81030377>] dup_mm+0x206/0x43f > [ 90.276644] [<ffffffff81030dac>] copy_process+0x7b2/0xea9 > [ 90.276644] [<ffffffff81031625>] do_fork+0x15e/0x2b4 > [ 90.276644] [<ffffffff8101cd6f>] ? do_page_fault+0x222/0x253 > [ 90.276644] [<ffffffff81009a6f>] sys_clone+0x23/0x25 > [ 90.276644] [<ffffffff81002193>] stub_clone+0x13/0x20 > [ 90.276644] [<ffffffff81001f2b>] ? system_call_fastpath+0x16/0x1b > [ 90.276644] Code: 83 ec 10 c7 47 28 00 00 00 00 48 8b 4f 08 65 8b 14 25 58 d1 00 00 c7 45 f8 ff ff ff ff 89 55 f4 8b 75 f4 8b 45 f8 f0 0f b1 71 38 <89> 45 fc 8b 45 fc 83 f8 ff 75 09 c7 47 28 01 00 00 00 eb 08 39 > [ 90.276644] ---[ end trace ef30915e055ad1bb ]--- > [ 90.276643] BUG: NMI Watchdog detected LOCKUP on CPU0, ip ffffffff81079014, registers: > [ 90.276643] CPU 0 > [ 90.276643] Modules linked in: cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave > [ 90.276644] Kernel panic - not syncing: Aiee, killing interrupt handler! > [ 90.276643] acpi_cpufreqPid: 5146, comm: forkbomb Tainted: G D 2.6.34-smpx #1477 > [ 90.276643] snd_pcm_ossCall Trace: > [ 90.276643] snd_mixer_oss <NMI> microcode snd_seq [<ffffffff812b3364>] panic+0x73/0xe1 > [ 90.276643] snd_seq_device fuse [<ffffffff8103794f>] ? irq_exit+0x48/0x78 > [ 90.276643] loop dm_mod [<ffffffff81034c57>] do_exit+0x6d/0x67a > [ 90.276643] snd_hda_codec_realtek snd_hda_intel [<ffffffff8104e164>] ? notifier_call_chain+0x32/0x5e > [ 90.276643] firewire_ohci firewire_core [<ffffffff81005f8c>] die_nmi+0xd2/0xde > [ 90.276643] snd_hda_codec usbmouse [<ffffffff8101751d>] nmi_watchdog_tick+0x41/0x19d > [ 90.276643] crc_itu_t snd_hwdep [<ffffffff81003812>] do_nmi+0x222/0x24c > [ 90.276643] snd_pcm usb_storage [<ffffffff812b5cfa>] nmi+0x1a/0x20 > [ 90.276643] snd_timer sr_mod [<ffffffff81005f87>] ? die_nmi+0xcd/0xde > [ 90.276643] usbhid <<EOE>> ohci1394 snd rtc_cmos soundcore rtc_core ieee1394 usb_libusual thermal i2c_i801 processor button e1000e snd_page_alloc cdrom rtc_lib hid sg uhci_hcd ehci_hcd sd_mod usbcore edd fan ext3 ext2 mbcache jbd ahci libata scsi_mod > [ 90.276643] > [ 90.276643] Pid: 20238, comm: forkbomb Tainted: G D 2.6.34-smpx #1477 MS-7502/MS-7502 > [ 90.276643] RIP: 0010:[<ffffffff81079014>] [<ffffffff81079014>] perf_output_lock+0x30/0x4e > [ 90.276643] RSP: 0000:ffff880001603b88 EFLAGS: 00000082 > [ 90.276643] RAX: 0000000000000002 RBX: ffff880001603c38 RCX: ffff8800bc454000 > [ 90.276643] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880001603c38 > [ 90.276643] RBP: ffff880001603b98 R08: 0000000000000001 R09: ffff880001603c68 > [ 90.276643] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800bc454000 > [ 90.276643] R13: ffff880037788000 R14: 0000000000000078 R15: 00000000ffffffe4 > [ 90.276643] FS: 00007ff057202700(0000) GS:ffff880001600000(0000) knlGS:0000000000000000 > [ 90.276643] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 90.276643] CR2: 00007ff056d05510 CR3: 00000000bd9f7000 CR4: 00000000000006f0 > [ 90.276643] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 90.276643] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ 90.276643] Process forkbomb (pid: 20238, threadinfo ffff8800bd3fa000, task ffff8800b48de8a0) > [ 90.276643] Stack: > [ 90.276643] 00000000071cf224 00000002ffffffff ffff880001603c18 ffffffff8107c5cf > [ 90.276643] <0> ffff880001603bc8 000000000002b3c6 ffff880001603bc8 ffff880001603c68 > [ 90.276643] <0> ffff880001603c18 ffffffff8107d13c ffff8800bc690888 ffff8800b48de8a0 > [ 90.276643] Call Trace: > [ 90.276643] <IRQ> > [ 90.276643] [<ffffffff8107c5cf>] perf_output_begin+0x77/0x180 > [ 90.276643] [<ffffffff8107d13c>] ? perf_prepare_sample+0xb5/0x1d3 > [ 90.276643] [<ffffffff8107d3c5>] __perf_event_overflow+0x16b/0x1ad > [ 90.276643] [<ffffffff8107d45f>] perf_swevent_overflow+0x58/0x76 > [ 90.276643] [<ffffffff8107d4c3>] perf_swevent_add+0x46/0x48 > [ 90.276643] [<ffffffff8107d5a2>] perf_swevent_ctx_event+0xdd/0xee > [ 90.276643] [<ffffffff8107d601>] do_perf_sw_event+0x4e/0x8c > [ 90.276643] [<ffffffff811b8f9e>] ? put_device+0x12/0x14 > [ 90.276643] [<ffffffff8107d670>] perf_tp_event+0x31/0x33 > [ 90.276643] [<ffffffff810263b8>] ? task_tick_fair+0x47/0x103 > [ 90.276643] [<ffffffff810752e6>] ? perf_trace_buf_prepare+0x8e/0xb5 > [ 90.276643] [<ffffffff810247ff>] perf_trace_sched_stat_runtime+0xc4/0xdc > [ 90.276643] [<ffffffffa0000773>] ? scsi_finish_command+0xec/0xf5 [scsi_mod] > [ 90.276643] [<ffffffff81026227>] update_curr+0x87/0xc8 > [ 90.276643] [<ffffffff810263b8>] task_tick_fair+0x47/0x103 > [ 90.276643] [<ffffffff8102ed61>] scheduler_tick+0xd9/0x1e6 > [ 90.276643] [<ffffffff8103f082>] update_process_times+0x4b/0x5b > [ 90.276643] [<ffffffff81054229>] tick_periodic+0x5d/0x5f > [ 90.276643] [<ffffffff8105428e>] tick_handle_periodic+0x21/0x6e > [ 90.276643] [<ffffffff810167a7>] smp_apic_timer_interrupt+0x83/0x96 > [ 90.276643] [<ffffffff81002813>] apic_timer_interrupt+0x13/0x20 > [ 90.276643] <EOI> > [ 90.276643] [<ffffffff8101cbd1>] ? do_page_fault+0x84/0x253 > [ 90.276643] [<ffffffff8101cd6f>] ? do_page_fault+0x222/0x253 > [ 90.276643] [<ffffffff812b5a9f>] page_fault+0x1f/0x30 > [ 90.276643] Code: 83 ec 10 c7 47 28 00 00 00 00 48 8b 4f 08 65 8b 14 25 58 d1 00 00 c7 45 f8 ff ff ff ff 89 55 f4 8b 75 f4 8b 45 f8 f0 0f b1 71 38 <89> 45 fc 8b 45 fc 83 f8 ff 75 09 c7 47 28 01 00 00 00 eb 08 39 > [ 90.276643] ---[ end trace ef30915e055ad1bc ]--- > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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