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Re: [Qemu-devel] [PATCH] aio: strengthen memory barriers for bottom half


From: Richard W.M. Jones
Subject: Re: [Qemu-devel] [PATCH] aio: strengthen memory barriers for bottom half scheduling
Date: Wed, 8 Apr 2015 11:15:02 +0100
User-agent: Mutt/1.5.20 (2009-12-10)

On Tue, Apr 07, 2015 at 05:16:19PM +0200, Paolo Bonzini wrote:
> This bug is, most likely, also the cause of failures in the libguestfs
> testsuite on AArch64.

I'm afraid I have to agree with Laszlo, that this patch unfortunately
does not cure the aarch64 race.

The test case I'm using is:
http://git.annexia.org/?p=rhbz1184405.git;a=tree

Note: This does not mean this patch is bad!  Just that it doesn't cure
the long-standing aarch64 race that we've been trying to fix forever,
which is what we were hoping.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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