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Re: io_uring possibly the culprit for qemu hang (linux-5.4.y)
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From: |
Pankaj Gupta |
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Subject: |
Re: io_uring possibly the culprit for qemu hang (linux-5.4.y) |
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Date: |
Mon, 19 Oct 2020 11:22:56 +0200 |
@Jack Wang,
Maybe four io_uring patches in 5.4.71 fixes the issue for you as well?
Thanks,
Pankaj
> Hi Jens.
>
> On Sat, Oct 17, 2020 at 3:07 AM Jens Axboe <axboe@kernel.dk> wrote:
> >
> > Would be great if you could try 5.4.71 and see if that helps for your
> > issue.
> >
>
> Oh wow, yeah it did fix the issue.
>
> I'm able to reliably turn off and start the VM multiple times in a row.
> Double checked by confirming QEMU is dynamically linked to liburing.so.1.
>
> Looks like those 4 io_uring fixes helped.
>
> Thanks!
>