[Fedora-xen] Fedora xen-3.4.1-5 bugfixes / [Xen-devel] [PATCH 0 of 12] backport critical fixes from qemu upstream

[Pasi Kärkkäinen]

Hello,

Gerd: The earlier qemu mem leak patch should be dropped, and these
fixes applied instead.

These patches are committed to qemu-xen-unstable, and can also be found from
xen-devel archives:

"[Xen-devel] [PATCH 0 of 12] backport critical fixes from qemu upstream":
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00155.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00156.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00157.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00158.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00159.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00160.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00161.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00162.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00163.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00164.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00165.html
http://lists.xensource.com/archives/html/xen-devel/2009-10/msg00166.html

-- Pasi

----- Forwarded message from Stefano Stabellini <stefano.stabellini at eu.citrix.com> -----

From: Stefano Stabellini <stefano.stabellini at eu.citrix.com>
To: xen-devel at lists.xensource.com
Cc: Ian Jackson <Ian.Jackson at eu.citrix.com>
Date: Mon, 5 Oct 2009 14:40:35 +0100
Subject: [Xen-devel] [PATCH 0 of 12] backport critical fixes from qemu
	upstream

Hi all,
the current qemu block layer contains few critical problems, one of them
was fixed by "fix qemu memory leak in block interface" but unfortunately
others remain.
In particular every time the guest cancels a dma request qemu
segfaults.
In order to completely fix any remaining bug I suggest to revert the
previous fix "fix qemu memory leak in block interface" and backport
instead the following changesets from qemu upstream:

6bbff9a0b495918309074ac60375be5f9dc868b3 # Refactor aio callback allocation to use an aiocb pool (Avi Kivity)
c07a9008ac6985cd5a15909c2b9977d982defc12 # Convert vectored aio emulation to use a dedicated pool (Avi Kivity)
6512a2a7106480c19183d6466a6845bc9bdf6ec0 # Implement cancellation method for dma async I/O (Avi Kivity)
3fb94d56c6adc96ffc4a81b58c752cc4ccfae39c # Use vectored aiocb storage to store vector translation state (Avi Kivity)
37b7842c2fb405c270efdce714425c17af3c78cd # Move block dma helpers aiocb to store dma state (Avi Kivity)
c240b9af599d20e06a58090366be682684bd8555 # Fix vectored aio bounce handling immediate errors (Avi Kivity)
7403b14eeb4670d54497284b110ca3e3be4a99a4 # Fix DMA API when handling an immediate error from block layer (Avi Kivity)
081501daceca74d2091e798d5dcd342c14d66d1a # check for bs->drv in bdrv_flush (Christoph Hellwig)
fbb7b4e0804d2168f24142eebf7552adde1968dc # Improve block range checks
6a7ad2998ca47711eddd191caa1a95f14459793f # Call qemu_bh_delete at bdrv_aio_bh_cb.
36afc451599175eb8f03f1962de74e7f7a8af4db # block: Clean up after deleting BHs

The same should be done to qemu-xen-3.4-testing as well.
Cheers,

Stefano

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----- End forwarded message -----