Hi all, I am not sure if this is the right mailing list to ask for help. I have a Dell Vostro 3350 that I have been using for almost one year, but the laptop got a big problem of auto-shutdown from time to time. The problem was ACPI reports critical temperature even though the output of sensors command says otherwise. I had tried Fedora 15, Fedora 16, CentOS 6.2, Ubuntu 11.10 and Ubuntu 12.04-beta2 and many version of kernels, but they all exhibited the same problem. Long story short, this problem occurs when bluetooth is enabled. If I use dual display + bluetooth, the auto-shutdown can be triggered within 5 minutes. If I enable bluetooth without using dual display, the auto-shutdown may take some time before it is triggered. I had enabled ACPI debug in the kernel, but the output is too verbose and I don't understand ACPI well enough to know what's the cause of the problem. Therefore, I would like to ask for your help on this matter. The following is the syslog output from the kernel: Apr 7 02:12:26 wcang-laptop kernel: [ 364.265571] osl-1128 [430818512] [4294967291] os_wait_semaphore : Waiting for semaphore[ffff88011b004300|1|65535] Apr 7 02:12:26 wcang-laptop kernel: [ 364.265601] osl-1147 [430818512] [4294967291] os_wait_semaphore : Acquired semaphore[ffff88011b004300|1|65535] utmutex-0269 [430818512] [4294967291] ut_acquire_mutex : Thread 430818512 acquired Mutex [ACPI_MTX_Interpreter] Apr 7 02:12:26 wcang-laptop kernel: [ 364.265655] exutils-0099 [430818512] [4294967291] ex_enter_interpreter : ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.265680] utdelete-0678 [430818512] [4294967291] ut_remove_reference : ----Entry ffff880030afa480 Apr 7 02:12:26 wcang-laptop kernel: [ 364.265706] utdelete-0698 [430818512] [4294967291] ut_remove_reference : Obj ffff880030afa480 Current Refs=1 [To Be Decremented] Apr 7 02:12:26 wcang-laptop kernel: [ 364.265737] utdelete-0486 [430818512] [4294967292] ut_update_object_refer: ----Entry ffff880030afa480 Apr 7 02:12:26 wcang-laptop kernel: [ 364.265764] utdelete-0412 [430818512] [4294967292] ut_update_ref_count : Obj ffff880030afa480 Refs=0, [Decremented] Apr 7 02:12:26 wcang-laptop kernel: [ 364.265795] utdelete-0080 [430818512] [4294967293] ut_delete_internal_obj: ----Entry ffff880030afa480 Apr 7 02:12:26 wcang-laptop kernel: [ 364.265821] utdelete-0320 [430818512] [4294967293] ut_delete_internal_obj: Deleting Object ffff880030afa480 [Integer] Apr 7 02:12:26 wcang-laptop kernel: [ 364.265851] utobject-0420 [430818512] [4294967294] ut_delete_object_desc : ----Entry ffff880030afa480 Apr 7 02:12:26 wcang-laptop kernel: [ 364.265877] utobject-0432 [430818512] [4294967294] ut_delete_object_desc : ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.265901] utdelete-0323 [430818512] [4294967293] ut_delete_internal_obj: ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.265926] utdelete-0612 [430818512] [4294967292] ut_update_object_refer: ----Exit- AE_OK Apr 7 02:12:26 wcang-laptop kernel: [ 364.265947] utdelete-0706 [430818512] [4294967291] ut_remove_reference : ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.265963] exutils-0151 [430818512] [4294967291] ex_exit_interpreter : ----Entry Apr 7 02:12:26 wcang-laptop kernel: [ 364.265980] utmutex-0300 [430818512] [4294967291] ut_release_mutex : Thread 430818512 releasing Mutex [ACPI_MTX_Interpreter] Apr 7 02:12:26 wcang-laptop kernel: [ 364.266001] osl-1167 [430818512] [4294967291] os_signal_semaphore : Signaling semaphore[ffff88011b004300|1] Apr 7 02:12:26 wcang-laptop kernel: [ 364.266021] exutils-0159 [430818512] [4294967291] ex_exit_interpreter : ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.266038] nsxfeval-0358 [430818512] [4294967290] evaluate_object : ----Exit- AE_OK Apr 7 02:12:26 wcang-laptop kernel: [ 364.266055] utils-0286 [430818512] [4294967289] evaluate_integer : Return value [3732] Apr 7 02:12:26 wcang-laptop kernel: [ 364.266073] thermal-0212 [430818512] [4294967289] thermal_get_temperatur: Temperature is 3732 dK Apr 7 02:12:26 wcang-laptop kernel: [ 364.266115] Critical temperature reached (100 C), shutting down. Apr 7 02:12:26 wcang-laptop kernel: [ 364.266128] Pid: 4, comm: kworker/0:0 Tainted: G C 3.3.1+ #4 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266135] Call Trace: Apr 7 02:12:26 wcang-laptop kernel: [ 364.266158] [<ffffffff814ce287>] thermal_zone_device_update+0x1e7/0x2f0 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266179] [<ffffffff810687df>] ? queue_delayed_work_on+0x11f/0x130 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266195] [<ffffffff8136d56c>] ? acpi_os_wait_events_complete+0x23/0x23 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266210] [<ffffffff813ae5ad>] acpi_thermal_notify+0x4c/0x124 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266224] [<ffffffff81370b63>] acpi_device_notify+0x19/0x1b Apr 7 02:12:26 wcang-laptop kernel: [ 364.266240] [<ffffffff813825c8>] acpi_ev_notify_dispatch+0x6c/0x83 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266252] [<ffffffff8136d593>] acpi_os_execute_deferred+0x27/0x34 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266272] [<ffffffff8106abaa>] process_one_work+0x11a/0x480 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266286] [<ffffffff8106b864>] worker_thread+0x164/0x370 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266299] [<ffffffff8106b700>] ? manage_workers.isra.29+0x230/0x230 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266312] [<ffffffff81070043>] kthread+0x93/0xa0 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266329] [<ffffffff816391a4>] kernel_thread_helper+0x4/0x10 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266343] [<ffffffff8106ffb0>] ? kthread_freezable_should_stop+0x70/0x70 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266358] [<ffffffff816391a0>] ? gs_change+0x13/0x13 Apr 7 02:12:26 wcang-laptop kernel: [ 364.266380] utstate-0339 [430818512] [4294967290] ut_delete_generic_stat: ----Entry Apr 7 02:12:26 wcang-laptop kernel: [ 364.266396] utstate-0346 [430818512] [4294967290] ut_delete_generic_stat: ----Exit- Apr 7 02:12:26 wcang-laptop kernel: [ 364.266439] hwvalid-0132 [430818512] [4294967290] hw_validate_io_request: ----Entry Do note that I don't use any proprietary kernel module and I added dump_stack call to trace the event. I'll appreciate if someone can give a pointer or two. Thank you very much. Regards, Ang -- 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
