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Re: [Qemu-devel] [PATCH] aio: strengthen memory barriers for bottom half
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From: |
Laszlo Ersek |
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Subject: |
Re: [Qemu-devel] [PATCH] aio: strengthen memory barriers for bottom half scheduling |
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Date: |
Wed, 08 Apr 2015 12:34:11 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 04/08/15 12:15, Richard W.M. Jones wrote:
> 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.
Precisely. I meant the same; sorry if I wasn't clear about it.
Laszlo