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Message-ID: <50A513A8.9010404@redhat.com> Date: Thu, 15 Nov 2012 17:09:12 +0100 From: Zdenek Kabelac <zkabelac@...hat.com> To: LKML <linux-kernel@...r.kernel.org> Subject: Acpi deadlocks with 3.7.0-rc4 Hello I've already seen twice this oops after resuming my Lenovo T61 in docking station. Since for some reason currently the serial line doesn't work correctly after resume (while I'm pretty sure it used to work in past) here is at least hand-written oops message from mobile camera picture. From the trace it seem os_wait semaphore is accessed twice. Unsure which device is behind it - but it seem docking station is need to hit this issue. kernel 3.7.0-rc4 Pid: pm-suspend RIP: acpi_ns_lookup + 0xa1/0x5b9 Call Trace: ? acpi_os_wait_semaphore + 0x136/0x149 acpi_ns_get_mode + 0x96/0x102 ? __lock_is_held +0x5f/0x90 acpi_ns_evaluate +0x47/0x2de ? _raw_spin_lock_irqsave ? acpi_ut_evaluate_object ? sub_preempt_count ? pnpacpi_can_wakeup acpi_rs_get_method_data ? acpi_os_signal_semaphore acpi_walk_resources ? acpi_ut_release_mutex pnpacpi_build_resource_template ? acpi_bus_get_device pnpacpi_set_resources ? pnp_device_shutdown pnp_start_dev pnp_bus_resume dpm_run_callback device_resume dpm_resume dpm_resume_end ? acpi_suspend_begin_old suspend_devices_and_enter pm_suspend state_store kobj_attr_store sysfs_write_file vgs_write sys_write system_call_fastpath Zdenek PS: jpg on request -- 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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