I have noticed that sometimes keyboard input would stop working, and system will refuse to do many things. I tried to ssh to this system, but again after a login I can't type a thing. Then I realized that I can run a program via ssh, so I did run the dmesg, and here important parts of it: [ 79.101221] ACPI Error (dswload-0790): [_T_0] Namespace lookup failure, AE_ALREADY_EXISTS [ 79.101232] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog 20090521 psloop-227 [ 79.101240] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.WMID.WMBA] (Node ffff88007f8400c0), AE_ALREADY_EXISTS [ 79.101254] ACPI: Marking method WMBA as Serialized because of AE_ALREADY_EXISTS error Is very likely due to acer-wmi module I use to control brightness. Then it bugs out with this: [ 79.101221] ACPI Error (dswload-0790): [_T_0] Namespace lookup failure, AE_ALREADY_EXISTS [ 79.101232] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog 20090521 psloop-227 [ 79.101240] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.WMID.WMBA] (Node ffff88007f8400c0), AE_ALREADY_EXISTS [ 79.101254] ACPI: Marking method WMBA as Serialized because of AE_ALREADY_EXISTS error [ 134.543609] No probe response from AP 00:1b:9e:d8:77:02 after 500ms, try 1 [ 240.702553] INFO: task events/0:10 blocked for more than 120 seconds. [ 240.702561] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.702566] events/0 D ffff880002073980 0 10 2 0x00000000 [ 240.702578] BUG: using smp_processor_id() in preemptible [00000000] code: khungtaskd/275 [ 240.702589] caller is show_stack_log_lvl+0x29/0x160 [ 240.702596] Pid: 275, comm: khungtaskd Tainted: P 2.6.31-rc8-wl #105 [ 240.702600] Call Trace: [ 240.702612] [<ffffffff811f5a8d>] debug_smp_processor_id+0xdd/0xe0 [ 240.702619] [<ffffffff8100f3b9>] show_stack_log_lvl+0x29/0x160 [ 240.702627] [<ffffffff81010ba7>] show_stack+0x17/0x20 [ 240.702635] [<ffffffff81040315>] sched_show_task+0x95/0x100 [ 240.702644] [<ffffffff8108eea1>] watchdog+0x211/0x240 [ 240.702651] [<ffffffff8108ec90>] ? watchdog+0x0/0x240 [ 240.702659] [<ffffffff81061c56>] kthread+0xa6/0xc0 [ 240.702667] [<ffffffff8100d05a>] child_rip+0xa/0x20 [ 240.702676] [<ffffffff8100c9c0>] ? restore_args+0x0/0x30 [ 240.702683] [<ffffffff81061bb0>] ? kthread+0x0/0xc0 [ 240.702689] [<ffffffff8100d050>] ? child_rip+0x0/0x20 [ 240.702694] ffff88007f8a39d0 0000000000000046 000000007f8a3910 ffff880002070380 [ 240.702705] 0000000000013980 000000000000ef28 0000000000000000 ffff88007f893ee0 [ 240.702715] ffff8800673d1f70 ffff88007f894260 000000007f8a3950 ffffffff8125d19d [ 240.702726] Call Trace: [ 240.702735] [<ffffffff8125d19d>] ? acpi_ut_validate_exception+0x10/0xa2 [ 240.702742] [<ffffffff8125bbd8>] ? acpi_ut_status_exit+0x6f/0x84 [ 240.702752] [<ffffffff813b470d>] schedule_timeout+0x1ad/0x1e0 [ 240.702760] [<ffffffff813b5e1d>] __down_timeout+0x6d/0xb0 [ 240.702768] [<ffffffff81066cef>] ? down_timeout+0x1f/0x60 [ 240.702775] [<ffffffff81066d28>] down_timeout+0x58/0x60 [ 240.702783] [<ffffffff81228be0>] acpi_os_wait_semaphore+0x95/0x132 [ 240.702790] [<ffffffff8125bc1e>] ? acpi_ut_exit+0x31/0x39 [ 240.702799] [<ffffffff812473ae>] acpi_ex_system_wait_mutex+0x84/0xed [ 240.702807] [<ffffffff81237cfc>] acpi_ds_begin_method_execution+0x184/0x271 [ 240.702816] [<ffffffff81257010>] acpi_ps_execute_method+0x77/0x3d3 [ 240.702823] [<ffffffff8125bc1e>] ? acpi_ut_exit+0x31/0x39 [ 240.702830] [<ffffffff8125066e>] acpi_ns_evaluate+0x236/0x3bc [ 240.702838] [<ffffffff8124fb27>] acpi_evaluate_object+0x265/0x3cc [ 240.702861] [<ffffffffa09c56fa>] wmi_evaluate_method+0x10a/0x130 [wmi] [ 240.702869] [<ffffffff81040956>] ? finish_task_switch+0x46/0x120 [ 240.702877] [<ffffffff813b3c9c>] ? thread_return+0x9f/0x723 [ 240.702889] [<ffffffffa0a9d7d0>] ? acer_rfkill_update+0x0/0xa0 [acer_wmi] [ 240.702899] [<ffffffffa0a9d17c>] WMI_execute_u32+0x4c/0x90 [acer_wmi] [ 240.702911] [<ffffffffa0a9d620>] get_u32+0x90/0x100 [acer_wmi] [ 240.702918] [<ffffffff8105d19a>] ? worker_thread+0x1ca/0x390 [ 240.702928] [<ffffffffa0a9d7ea>] acer_rfkill_update+0x1a/0xa0 [acer_wmi] [ 240.702936] [<ffffffff8105d1ed>] worker_thread+0x21d/0x390 [ 240.702943] [<ffffffff8105d19a>] ? worker_thread+0x1ca/0x390 [ 240.702951] [<ffffffff810620e0>] ? autoremove_wake_function+0x0/0x40 [ 240.702959] [<ffffffff81072ddd>] ? trace_hardirqs_on+0xd/0x10 [ 240.702967] [<ffffffff8105cfd0>] ? worker_thread+0x0/0x390 [ 240.702974] [<ffffffff81061c56>] kthread+0xa6/0xc0 [ 240.702982] [<ffffffff8100d05a>] child_rip+0xa/0x20 [ 240.702990] [<ffffffff8100c9c0>] ? restore_args+0x0/0x30 [ 240.702997] [<ffffffff81061bb0>] ? kthread+0x0/0xc0 [ 240.703003] [<ffffffff8100d050>] ? child_rip+0x0/0x20 [ 240.703007] INFO: lockdep is turned off. [ 240.703043] INFO: task gnome-keyring-d:3915 blocked for more than 120 seconds. [ 240.703048] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.703053] gnome-keyring D ffff880002073980 0 3915 1 0x00000000 [ 240.703063] BUG: using smp_processor_id() in preemptible [00000000] code: khungtaskd/275 [ 240.703070] caller is show_stack_log_lvl+0x29/0x160 [ 240.703075] Pid: 275, comm: khungtaskd Tainted: P 2.6.31-rc8-wl #105 [ 240.703079] Call Trace: [ 240.703085] [<ffffffff811f5a8d>] debug_smp_processor_id+0xdd/0xe0 [ 240.703092] [<ffffffff8100f3b9>] show_stack_log_lvl+0x29/0x160 [ 240.703100] [<ffffffff81010ba7>] show_stack+0x17/0x20 [ 240.703106] [<ffffffff81040315>] sched_show_task+0x95/0x100 [ 240.703114] [<ffffffff8108eea1>] watchdog+0x211/0x240 [ 240.703121] [<ffffffff8108ec90>] ? watchdog+0x0/0x240 [ 240.703128] [<ffffffff81061c56>] kthread+0xa6/0xc0 [ 240.703135] [<ffffffff8100d05a>] child_rip+0xa/0x20 [ 240.703143] [<ffffffff8100c9c0>] ? restore_args+0x0/0x30 [ 240.703150] [<ffffffff81061bb0>] ? kthread+0x0/0xc0 [ 240.703156] [<ffffffff8100d050>] ? child_rip+0x0/0x20 [ 240.703160] ffff88006ab93d18 0000000000000046 ffff88006ab93c88 ffffffff810a7373 [ 240.703171] 0000000000013980 000000000000ef28 0000000000000000 ffff88006a951f70 [ 240.703182] ffff88006a950000 ffff88006a9522f0 000000006ab93c88 0000000181072ddd [ 240.703192] Call Trace: [ 240.703200] [<ffffffff810a7373>] ? rmqueue_bulk+0xb3/0xe0 [ 240.703210] [<ffffffff813b470d>] schedule_timeout+0x1ad/0x1e0 [ 240.703217] [<ffffffff813b34a3>] ? wait_for_common+0x43/0x190 [ 240.703225] [<ffffffff813b35bc>] wait_for_common+0x15c/0x190 [ 240.703233] [<ffffffff81043300>] ? default_wake_function+0x0/0x10 [ 240.703241] [<ffffffff810acd40>] ? lru_add_drain_per_cpu+0x0/0x10 [ 240.703249] [<ffffffff813b3688>] wait_for_completion+0x18/0x20 [ 240.703256] [<ffffffff8105df2a>] flush_work+0xca/0x110 [ 240.703262] [<ffffffff8105de9c>] ? flush_work+0x3c/0x110 [ 240.703270] [<ffffffff8105d810>] ? wq_barrier_func+0x0/0x10 [ 240.703278] [<ffffffff8105e353>] schedule_on_each_cpu+0xe3/0x130 [ 240.703286] [<ffffffff810ac7b0>] lru_add_drain_all+0x10/0x20 [ 240.703294] [<ffffffff810be9b5>] sys_mlock+0x45/0x110 [ 240.703302] [<ffffffff8100bf6b>] system_call_fastpath+0x16/0x1b [ 240.703307] INFO: lockdep is turned off. [ 240.703314] INFO: task nm-applet:3992 blocked for more than 120 seconds. [ 240.703318] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.703322] nm-applet D ffff880002073980 0 3992 3782 0x00000000 [ 240.703332] BUG: using smp_processor_id() in preemptible [00000000] code: khungtaskd/275 [ 240.703339] caller is show_stack_log_lvl+0x29/0x160 [ 240.703344] Pid: 275, comm: khungtaskd Tainted: P 2.6.31-rc8-wl #105 [ 240.703348] Call Trace: [ 240.703355] [<ffffffff811f5a8d>] debug_smp_processor_id+0xdd/0xe0 [ 240.703362] [<ffffffff8100f3b9>] show_stack_log_lvl+0x29/0x160 [ 240.703369] [<ffffffff81010ba7>] show_stack+0x17/0x20 [ 240.703376] [<ffffffff81040315>] sched_show_task+0x95/0x100 [ 240.703383] [<ffffffff8108eea1>] watchdog+0x211/0x240 [ 240.703390] [<ffffffff8108ec90>] ? watchdog+0x0/0x240 [ 240.703398] [<ffffffff81061c56>] kthread+0xa6/0xc0 [ 240.703405] [<ffffffff8100d05a>] child_rip+0xa/0x20 [ 240.703412] [<ffffffff8100c9c0>] ? restore_args+0x0/0x30 [ 240.703420] [<ffffffff81061bb0>] ? kthread+0x0/0xc0 [ 240.703426] [<ffffffff8100d050>] ? child_rip+0x0/0x20 [ 240.703430] ffff880065cc3d18 0000000000000046 0000000000000000 000000470000001b [ 240.703440] 0000000000013980 000000000000ef28 0000000000000000 ffff880065e20000 [ 240.703451] ffff88006f530000 ffff880065e20380 0000000065cc3c88 ffffffff81072ddd [ 240.703461] Call Trace: [ 240.703468] [<ffffffff81072ddd>] ? trace_hardirqs_on+0xd/0x10 [ 240.703477] [<ffffffff813b470d>] schedule_timeout+0x1ad/0x1e0 [ 240.703484] [<ffffffff813b34a3>] ? wait_for_common+0x43/0x190 [ 240.703492] [<ffffffff813b35bc>] wait_for_common+0x15c/0x190 [ 240.703499] [<ffffffff81043300>] ? default_wake_function+0x0/0x10 [ 240.703508] [<ffffffff810acd40>] ? lru_add_drain_per_cpu+0x0/0x10 [ 240.703515] [<ffffffff813b3688>] wait_for_completion+0x18/0x20 [ 240.703522] [<ffffffff8105df2a>] flush_work+0xca/0x110 [ 240.703528] [<ffffffff8105de9c>] ? flush_work+0x3c/0x110 [ 240.703535] [<ffffffff8105d810>] ? wq_barrier_func+0x0/0x10 [ 240.703543] [<ffffffff8105e353>] schedule_on_each_cpu+0xe3/0x130 [ 240.703551] [<ffffffff810ac7b0>] lru_add_drain_all+0x10/0x20 [ 240.703558] [<ffffffff810be9b5>] sys_mlock+0x45/0x110 [ 240.703566] [<ffffffff8100bf6b>] system_call_fastpath+0x16/0x1b [ 240.703570] INFO: lockdep is turned off. [ 272.766205] ------------[ cut here ]------------ [ 272.766222] WARNING: at /home/maxim/software/kernel/linux-2.6/drivers/char/tty_io.c:1267 tty_open+0x469/0x520() [ 272.766228] Hardware name: Aspire 5720 [ 272.766231] Modules linked in: af_packet vmnet vmblock vmci vmmon nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi_cpufreq coretemp sbp2 snd_hda_codec_realtek iwl3945 snd_hda_intel uvcvideo iwlcore joydev snd_hda_codec videodev v4l1_compat mac80211 snd_hwdep v4l2_compat_ioctl32 psmouse uhci_hcd snd_pcm acer_wmi backlight ohci1394 cfg80211 sdhci_pci tg3 lirc_ene0100 lirc_dev ehci_hcd iTCO_wdt iTCO_vendor_support usbcore wmi ieee1394 ricoh_mmc sdhci serio_raw rfkill snd_timer snd_page_alloc nvidia(P) libphy evdev fuse [ 272.766356] Pid: 4738, comm: clear_console Tainted: P 2.6.31-rc8-wl #105 [ 272.766361] Call Trace: [ 272.766370] [<ffffffff812751e9>] ? tty_open+0x469/0x520 [ 272.766380] [<ffffffff810498c8>] warn_slowpath_common+0x78/0xd0 [ 272.766388] [<ffffffff8104992f>] warn_slowpath_null+0xf/0x20 [ 272.766395] [<ffffffff812751e9>] tty_open+0x469/0x520 [ 272.766404] [<ffffffff810daf77>] chrdev_open+0x137/0x220 [ 272.766412] [<ffffffff813b7230>] ? _spin_unlock+0x30/0x60 [ 272.766419] [<ffffffff810d8828>] ? file_move+0x28/0x60 [ 272.766426] [<ffffffff810d5724>] __dentry_open+0x124/0x350 [ 272.766433] [<ffffffff810dae40>] ? chrdev_open+0x0/0x220 [ 272.766440] [<ffffffff810d5a57>] nameidata_to_filp+0x57/0x70 [ 272.766448] [<ffffffff810e5c2a>] do_filp_open+0x73a/0xb20 [ 272.766458] [<ffffffff810f0609>] ? alloc_fd+0x129/0x150 [ 272.766464] [<ffffffff810d54ef>] do_sys_open+0x7f/0x140 [ 272.766471] [<ffffffff810d55db>] sys_open+0x1b/0x20 [ 272.766480] [<ffffffff8100bf6b>] system_call_fastpath+0x16/0x1b [ 272.766485] ---[ end trace 996055d7a12e942b ]--- maxim@MAIN:~$ Tell me if I need to provide more info. Best regards, Maxim Levitsky -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
