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Re: [Qemu-devel] [STABLE][PATCH 0/4] Rebase more aio dma cancellation wo


From: Anthony Liguori
Subject: Re: [Qemu-devel] [STABLE][PATCH 0/4] Rebase more aio dma cancellation work
Date: Thu, 14 May 2009 09:38:50 -0500
User-agent: Thunderbird 2.0.0.21 (X11/20090320)

Mark McLoughlin wrote:
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.

Thanks Mark.

I actually cherry picked the patches directly.  This is less error prone.

Regards,

Anthony Liguori




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