kernel message/warning

@lex

From time to time a receive this message:

1. [  240.620137] INFO: task vsync proc 0:53 blocked for more than 120 seconds.
   
2. [  240.639509] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
   
3. [  240.660370] vsync proc 0    D c06d77c8     0    53      2 0x00000000
   
4. [  240.679574] [<c06d77c8>] (__schedule+0x6a8/0x784) from [<c06d7a40>] (schedule+0x8c/0x90)
   
5. [  240.701072] [<c06d7a40>] (schedule+0x8c/0x90) from [<c00483a4>] (kthread+0x84/0xa8)
   
6. [  240.721989] [<c00483a4>] (kthread+0x84/0xa8) from [<c000f360>] (kernel_thread_exit+0x0/0x8)
   
7. [  240.742286] INFO: task vsync proc 1:54 blocked for more than 120 seconds.
   
8. [  240.755715] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
   
9. [  240.770509] vsync proc 1    D c06d77c8     0    54      2 0x00000000
   
10. [  240.783775] [<c06d77c8>] (__schedule+0x6a8/0x784) from [<c06d7a40>] (schedule+0x8c/0x90)
    
11. [  240.799132] [<c06d7a40>] (schedule+0x8c/0x90) from [<c00483a4>] (kthread+0x84/0xa8)
    
12. [  240.814026] [<c00483a4>] (kthread+0x84/0xa8) from [<c000f360>] (kernel_thread_exit+0x0/0x8)
    

Copy code

The obvious thing is: echo 0 > /proc/sys/kernel/hung_task_timeout_secs disables this message
I am trying to figure out how did i enable this and what exactly this mean?
Update: This message is originated from a frame buffer init (disp2).

BladeDoyle

For me, messages matching the ones you posted above, were a result of overheating.  Adding a fan resolved the issue.