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Re: [Qemu-devel] [PATCH 3/5] push down vector linearization to posix-aio


From: Christoph Hellwig
Subject: Re: [Qemu-devel] [PATCH 3/5] push down vector linearization to posix-aio-compat.c
Date: Sun, 29 Mar 2009 23:21:52 +0200
User-agent: Mutt/1.3.28i

On Sun, Mar 29, 2009 at 04:01:26PM -0500, Anthony Liguori wrote:
> This bug is not limited to win32 though.  It has to do with having a 
> backend disk format that does not provide a proper aio implement (which 
> suggests your new brv_aio_{readv,writev}_em at fault).  You can 
> reproduce on a normal Linux build by converting an existing image to a 
> format like vmdk and then testing with that.  It's not 100% reliable but 
> 9 times out of 10 I don't get past the grub loader with this patch applied.

This bug?  I did test cow, vmdk and vpc and can't reproduce it.  By
inspection I can find a use after free in bdrv_aio_bh_cb, though.

Will repost the whole series, the win32 aio removal and some
recent scsi-disk commits caused a whole lot of rejects..




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