Re: io_uring process termination/killing is not working

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On 12/08/2020 21:05, Jens Axboe wrote:
> On 8/12/20 11:58 AM, Josef wrote:
>> Hi,
>>
>> I have a weird issue on kernel 5.8.0/5.8.1, SIGINT even SIGKILL
>> doesn't work to kill this process(always state D or D+), literally I
>> have to terminate my VM because even the kernel can't kill the process
>> and no issue on 5.7.12-201, however if IOSQE_IO_LINK is not set, it
>> works
>>
>> I've attached a file to reproduce it
>> or here
>> https://gist.github.com/1Jo1/15cb3c63439d0c08e3589cfa98418b2c
> 
> Thanks, I'll take a look at this. It's stuck in uninterruptible
> state, which is why you can't kill it.

It looks like one of the hangs I've been talking about a few days ago,
an accept is inflight but can't be found by cancel_files() because it's
in a link.

-- 
Pavel Begunkov



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