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From: Mark McLoughlin <markmc@redhat.com>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>
Subject: [Qemu-devel] [STABLE][PATCH 0/4] Rebase more aio dma cancellation work
Date: Thu, 14 May 2009 11:56:17 +0100	[thread overview]
Message-ID: <1242298581-30587-1-git-send-email-markmc@redhat.com> (raw)
In-Reply-To: <1240265600-9469-1-git-send-email-ryanh@us.ibm.com>


Hi,
        We've a report of F11 qemu segfaulting when using read-only
images here:

   https://bugzilla.redhat.com/497170

        Looking at the current code in stable, there is clearly some
borkage:

  - No error handling in bdrv_aio_rw_vector()

  - No error handling in dma_bdrv_cb()/dma_bdrv_io()

  - VectorTranslationState is leaked by bdrv_aio_rw_vector_cb()

  - dma_aio_cancel() is cancelling the wrong aio

       The rest of Avi's aio cancellation patches actually fixes all
these problems. Please apply to stable.

Cheers,
Mark.

  parent reply	other threads:[~2009-05-14 10:56 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-20 22:13 [Qemu-devel] [STABLE][PATCH 0/3] Rebase aio dma cancellation work Ryan Harper
2009-04-20 22:13 ` [Qemu-devel] [STABLE][PATCH 1/3] Refactor aio callback allocation to use an aiocb pool Ryan Harper
2009-04-20 22:13 ` [Qemu-devel] [STABLE][PATCH 2/3] Convert vectored aio emulation to use a dedicated pool Ryan Harper
2009-04-20 22:13 ` [Qemu-devel] [STABLE][PATCH 3/3] Implement cancellation method for dma async I/O Ryan Harper
2009-04-21 21:35 ` [Qemu-devel] Re: [STABLE][PATCH 0/3] Rebase aio dma cancellation work Anthony Liguori
2009-04-22 11:03   ` Avi Kivity
2009-05-14 10:56 ` Mark McLoughlin [this message]
2009-05-14 10:56   ` [Qemu-devel] [STABLE][PATCH 1/4] Use vectored aiocb storage to store vector translation state Mark McLoughlin
2009-05-14 10:56     ` [Qemu-devel] [STABLE][PATCH 2/4] Move block dma helpers aiocb to store dma state Mark McLoughlin
2009-05-14 10:56       ` [Qemu-devel] [STABLE][PATCH 3/4] Fix vectored aio bounce handling immediate errors Mark McLoughlin
2009-05-14 10:56         ` [Qemu-devel] [STABLE][PATCH 4/4] Fix DMA API when handling an immediate error from block layer Mark McLoughlin
2009-05-14 11:39           ` Mark McLoughlin
2009-05-14 11:39         ` [Qemu-devel] [STABLE][PATCH 3/4] Fix vectored aio bounce handling immediate errors Mark McLoughlin
2009-05-14 11:39       ` [Qemu-devel] [STABLE][PATCH 2/4] Move block dma helpers aiocb to store dma state Mark McLoughlin
2009-05-14 11:38     ` [Qemu-devel] [STABLE][PATCH 1/4] Use vectored aiocb storage to store vector translation state Mark McLoughlin
2009-05-14 11:28   ` [Qemu-devel] Re: [STABLE][PATCH 0/4] Rebase more aio dma cancellation work Avi Kivity
2009-05-14 14:38   ` [Qemu-devel] " Anthony Liguori

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