[Fedora-xen] Fedora xen-3.4.1-6 bugfixes / [Xen-devel] [PATCH 0 of 12] backport critical fixes from qemu upstream

[Pasi Kärkkäinen]

On Sun, Oct 11, 2009 at 12:35:25AM +0300, Pasi Kärkkäinen wrote:
> On Fri, Oct 09, 2009 at 01:06:53PM +0300, Pasi Kärkkäinen wrote:
> > Hello,
> > 
> > Gerd: The earlier qemu mem leak patch should be dropped, and these
> > fixes applied instead.
> > 
> 
> Or well, to xen-3.4.1-6, since -5 was already built with other fixes.
> 

Actually it seems there are still memleak issues with these patches, so
better wait a while until the issue is properly fixed..

-- Pasi

> 
> > 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
> > 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel at lists.xensource.com
> > http://lists.xensource.com/xen-devel
> > 
> > ----- End forwarded message -----
> > 
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> 
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