Re: INFO: task hung in io_uring_cancel_generic

[Pavel Begunkov]

On 9/13/21 3:26 AM, Hao Sun wrote:
> Hi
> 
> Healer found a C reproducer for this crash ("INFO: task hung in
> io_ring_exit_work").
> 
> HEAD commit: 4b93c544e90e-thunderbolt: test: split up test cases
> git tree: upstream
> console output:
> https://drive.google.com/file/d/1NswMU2yMRTc8-EqbZcVvcJejV92cuZIk/view?usp=sharing
> kernel config: https://drive.google.com/file/d/1c0u2EeRDhRO-ZCxr9MP2VvAtJd6kfg-p/view?usp=sharing
> C reproducer: https://drive.google.com/file/d/170wk5_T8mYDaAtDcrdVi2UU9_dW1894s/view?usp=sharing
> Syzlang reproducer:
> https://drive.google.com/file/d/1eo-jAS9lncm4i-1kaCBkexrjpQHXboBq/view?usp=sharing
> 
> If you fix this issue, please add the following tag to the commit:
> Reported-by: Hao Sun <sunhao.th@xxxxxxxxx>

I don't see the repro using io_uring at all. Can it be because of
the delay before the warning shows itself? 120 secs, this appeared
after 143.

[...]

-- 
Pavel Begunkov