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Re: [Qemu-devel] livelock in iolimits


From: Peter Lieven
Subject: Re: [Qemu-devel] livelock in iolimits
Date: Thu, 10 Jan 2013 13:48:41 +0100

Am 10.01.2013 um 13:45 schrieb Stefan Hajnoczi <address@hidden>:

> On Tue, Jan 08, 2013 at 04:43:22PM +0100, Peter Lieven wrote:
>> i am experimenting with iolimits on a virtio block device and found a lock 
>> condition.
>> My plan was to monitor IOPS and/or bandwidth and kick a limit in if a 
>> vServer is exhausting
>> these limits too much.
>> However, it seems that if a limit is defined while the defined limit is 
>> exceeded no further I/O
>> is processed.
> 
> You have sent a fix for this?
> 

I sent a fix, but Paolo suggested a different way to fix it. I am just testing 
it.

Peter

> Just double-checking that this email thread can be ignored in favor of
> your patch.
> 
> Stefan




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