Re: writeback throttling deadlock

[Jens Axboe]

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