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Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll()
From: |
Dietmar Maurer |
Subject: |
Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll() |
Date: |
Tue, 22 Jan 2013 07:02:08 +0000 |
> aio_poll() must return true if any work is still pending, even if it didn't
> make
> progress, so that qemu_aio_wait() doesn't return too early.
> The possibility of returning early occasionally lead to a failed assertion in
> bdrv_drain_all(), when some in-flight request was missed and the function
> didn't really drain all requests.
I still have problem with bdrv_drain_all() and my backup block job.
If I reset/suspend/resume/ the VM during a backup job run I get:
block.c:1221: bdrv_drain_all: Assertion `((&bs->tracked_requests)->lh_first ==
((void *)0))' failed.
Aborted
I am not 100% sure, but I think a simple qemu_aio_wait() is not enough to
ensure that
a copy-on-write action has finished.
Any idea how to solve that problem?
- [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Kevin Wolf, 2013/01/16
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/16
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(),
Dietmar Maurer <=
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/22
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Paolo Bonzini, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/23
- Re: [Qemu-devel] [PATCH] aio-posix: Fix return value of aio_poll(), Dietmar Maurer, 2013/01/24