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  • kernel
  • hung_task.c
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  • Anton Blanchard's avatar
    softlockup: Fix hung_task_check_count sysctl · e5af0226
    Anton Blanchard authored Nov 27, 2009
    
    
    I'm seeing spikes of up to 0.5ms in khungtaskd on a large
    machine. To reduce this source of jitter I tried setting
    hung_task_check_count to 0:
    
     # echo 0 > /proc/sys/kernel/hung_task_check_count
    
    which didn't have the intended response. Change to a post
    increment of max_count, so a value of 0 means check 0 tasks.
    Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
    Acked-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
    Cc: msb@google.com
    LKML-Reference: <20091127022820.GU32182@kryten>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    e5af0226

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