https://bugzilla.kernel.org/show_bug.cgi?id=25832 --- Comment #31 from rocko <rockorequin@xxxxxxxxxxx> 2011-02-20 00:16:33 --- Thanks, that helped a lot! Incidentally, if I don't sleep between unbind and bind operations in the script, the kernel becomes unresponsive (ie to everything including ssh sessions, ctrl-c/d/z and trying to switch to another tty) and just keeps scrolling the bind/unbind messages up the screen, even long after I remove the USB device, so presumably bind/unbind would have to fail at this point. Anyway, I managed to reproduce the freeze quite quickly with just a single USB key. The stack trace is slightly longer this time: <this scrolled off the top of the screen> wake_up_process wakeup_timer_fn run_timer_softirq ? wakeup_timer_fn __do_softirq call_softirq irq_exit do_IRQ ret_from_intr ? arch_local_irq_enable ? sched_clock_idle_wakeup_event acpi_idle_enter_bm cpuidle_idle_call cpu_idle rest_init start_kernel x86_64_start_reservvations x86_64_start_kernel ... RIP task_rq_lock --- end trace --- Kernel panic - not syncing: fatal exception in interrupt Pid: 0, comm: swapper Call trace: IRQ ? panic ? kmsg_dump ? oops_end ? no_context ? __bad_area_nosemaphore ? bad_area_nosemaphore ? enqueue_task ? resched_task ? try_to_wake_up ? native_sched_clock ? native_sched_clock [yes, twice] ? page_fault ? task_rq_lock ? try_to_wake_up ? wake_up_process ? wake_up_process [twice] ? wakeup_timer ? run_timer_softirq ? wakeup_timer_fn ? __do_softirq ? call_softirq ? irq_exit ? do_IRQ ? ret_from_intr ? arch_local_irq_enable ? sched_clock_idle_wakeup_event ? acpi_idle_enter_bm ? cpuidle_idle_call ? cpu_idle ? rest_init ? x86_64_start_reservvations ? x86_64_start_kernel But does that help any? -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
