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Re: [Qemu-devel] [PATCH] Revert "iothread: release iothread around aio_p
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From: |
Fam Zheng |
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Subject: |
Re: [Qemu-devel] [PATCH] Revert "iothread: release iothread around aio_poll" |
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Date: |
Thu, 4 Jun 2015 09:56:23 +0800 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Wed, 06/03 10:30, Stefan Hajnoczi wrote:
> This reverts commit a0710f7995f914e3044e5899bd8ff6c43c62f916.
>
> In qemu-devel email message <address@hidden>, Christian
> Borntraeger writes:
>
> Having many guests all with a kernel/ramdisk (via -kernel) and
> several null block devices will result in hangs. All hanging
> guests are in partition detection code waiting for an I/O to return
> so very early maybe even the first I/O.
>
> Reverting that commit "fixes" the hangs.
>
> Reverting this commit for the 2.4 release. More time is needed to
> investigate and correct this patch.
>
> Reported-by: Christian Borntraeger <address@hidden>
> Suggested-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>