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SubjectRe: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds.
On 11/12/2013 05:55 PM, Fengguang Wu wrote:
[snip]
>>
>> Good thinking.. Wu did this cure stuff?

Thanks for the confirm :)

>
> Yes, it fixed the problem.

Thanks for the testing :)

>
> Tested-by: Fengguang Wu <fengguang.wu@intel.com>
>

Will send out a formal patch later.

Regards,
Michael Wang

>
> /kernel/i386-randconfig-j3-11101308/484f4e66a6a1102edf02407479f6f7632aade0f3
>
> +--------------------------------------------------+--------------+--------------+
> | | e5137b50a064 | 484f4e66a6a1 |
> +--------------------------------------------------+--------------+--------------+
> | boot_successes | 42 | 100 |
> | boot_failures | 58 | |
> | INFO:task_blocked_for_more_than_seconds | 58 | |
> | Kernel_panic-not_syncing:hung_task:blocked_tasks | 58 | |
> +--------------------------------------------------+--------------+--------------+
>
> /kernel/x86_64-randconfig-x4-1108/484f4e66a6a1102edf02407479f6f7632aade0f3
>
> +------------------------------------------------------------------------------------+-----------+--------------+--------------+
> | | v3.12-rc7 | e5137b50a064 | 484f4e66a6a1 |
> +------------------------------------------------------------------------------------+-----------+--------------+--------------+
> | boot_successes | 59 | 34 | 100 |
> | has_kernel_error_warning | 4 | | |
> | BUG:kernel_early_hang_without_any_printk_output | 4 | | |
> | boot_failures | 0 | 66 | |
> | INFO:task_blocked_for_more_than_seconds | 0 | 66 | |
> | INFO:NMI_handler(arch_trigger_all_cpu_backtrace_handler)took_too_long_to_run:msecs | 0 | 55 | |
> | Kernel_panic-not_syncing:hung_task:blocked_tasks | 0 | 66 | |
> +------------------------------------------------------------------------------------+-----------+--------------+--------------+
>
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