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SubjectRe: writeback throttling deadlock
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On 8/30/18 8:58 AM, Mikulas Patocka wrote:
> I report this deadlock in writeback throttling.
>
> The deadlock happened in guest virtual machine with Debian kernel 4.17.17
> (4.17.0-3-amd64). The virtual machine had most of its memory swapped out,
> when I tried to shut it down, I got this deadlock. There was no io in
> flight.

Not very helpful for your case, but this should be fixed in Linus's
current tree. I've got a few pending fixes still, but they will be
going upstream for 4.19-rc2.

--
Jens Axboe

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