Re: [patch, v3] add an aio test which closes the fd before destroying the ioctx

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Hi, Dave,

Dave Chinner <david@xxxxxxxxxxxxx> writes:

> IOWs, we now have two AIO+DIO tests showing the same symptoms that
> no other tests show. This tends to point at AIO not being fully
> cleaned up and completely freed by the time the processes
> dispatching it have exit()d. This failure generally occurs when
> there is other load on the system/disks backing the test VM (e.g.
> running xfstests in multiple VMs at the same time) so I suspect it
> has to do with IO completion taking a long time.

Process exit waits for all outstanding I/O, but maybe it's an rcu thing.

> Can you spend some time trying to reproduce this and getting to the
> bottom of whatever is triggering the unmount error?

I can take a look, but not until next week.  Hopefully that's ok?

Cheers,
Jeff
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