>With ctrl+scrolllock, I finally got something. The traceback for the >D-state (millions and millions of them) is > > __down_failed > acpi_ut_acquire_mutex > acpi_ex_enter_interpreter > acpi_ns_evaluate > acpi_evaluate_object > acpi_evaluate_integer > acpi_os_execute_thread > acpi_thermal_get_temperature > acpi_thermal_check > .. > >and 'kacpid' seems to be stuck using all CPU time, with the >thing doing >something like: > > EIP is at delay_tsc+0xb/0x13 > EFLAGS: 00000283 Not tainted (2.6.18-rc1-g155dbfd8 #24) > EAX: 4aa48900 EBX: 00026be1 ECX: 4aa40b7e EDX: 0000001a > ESI: 00000000 EDI: c039300d EBP: c0390df3 DS: 007b ES: 007b > CR0: 8005003b CR2: 080516f0 CR3: 362dc000 CR4: 000006d0 > [<c01c94c0>] __delay+0x6/0x7 > [<c01f23ef>] acpi_os_stall+0x1d/0x29 > [<c0201f11>] acpi_ex_system_do_stall+0x37/0x3b > [<c0200fca>] acpi_ex_opcode_1A_0T_0R+0x85/0xc8 > [<c01f5308>] acpi_ds_exec_end_op+0x133/0x553 > [<c020d0f3>] acpi_ps_parse_loop+0x777/0xbe0 > [<c020c488>] acpi_ps_parse_aml+0xd8/0x2d5 > [<c020dbbe>] acpi_ps_execute_pass+0xa9/0xd2 > [<c020dd6a>] acpi_ps_execute_method+0x153/0x231 > [<c02095e1>] acpi_ns_evaluate+0x179/0x24c > [<c01fc12e>] acpi_ev_asynch_execute_gpe_method+0xeb/0x159 > [<c01f2083>] acpi_os_execute_deferred+0x19/0x21 > [<c01226a0>] run_workqueue+0x68/0x95 > [<c01f206a>] acpi_os_execute_deferred+0x0/0x21 > [<c0122b2e>] worker_thread+0xf9/0x12b > [<c03570bf>] schedule+0x469/0x4cc > [<c0113bfb>] default_wake_function+0x0/0xc > [<c0122a35>] worker_thread+0x0/0x12b > [<c01249bb>] kthread+0xad/0xd8 > [<c012490e>] kthread+0x0/0xd8 > [<c0101005>] kernel_thread_helper+0x5/0xb > >which I assume is the thing that holds the AML semaphore, and isn't >releasing it. > >Is there any sane debugging info I can send people? I think you just did:-) The os_stall part is due to interpreting AML. If you can get the output from acpidump, that would help us see what it is doing. I ask most people to attach it to a new bugzilla entry, but I don't know that you have an account:-) Anyway, if you don't have it already, acpidump is in the latest pmtools here: http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils/ dmesg with CONFIG_ACPI_DEBUG might be interesting too. thanks, -Len - 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
