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