Ack: Re: [Lucid ec2] Fix kernel deadlock in spinlock

Herton Ronaldo Krzesinski herton.krzesinski at canonical.com
Mon Jun 25 14:53:22 UTC 2012


On Mon, Jun 25, 2012 at 11:55:31AM +0200, Stefan Bader wrote:
> Xen allows for a certain level of nested spinlocks. However the code
> (SUSE patchset) that currently is in ec2 has a serious problems there.
> 
> I picked the new implementation from the more recent version of the
> patchset and backported it to lucid-ec2. Since the bug is not easy
> to reproduce it took a while to get feedback. But it seems to be
> good enough according to a recent feedback.
> 
> NOTE: This requires an ABI bump!

Ack. The test results indicate success, about the patch itself I also
think it's a complicated change and can't judge it well, don't know much
about Xen land, but trust the results and work done.

> 
> -Stefan
> 
> 
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-- 
[]'s
Herton




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