From: Avi Kivity <avi@redhat.com>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: KVM list <kvm@vger.kernel.org>, Christoph Hellwig <hch@lst.de>
Subject: Re: the >1Tb block issue
Date: Tue, 18 May 2010 20:38:22 +0300 [thread overview]
Message-ID: <4BF2D08E.7000505@redhat.com> (raw)
In-Reply-To: <4BF2CFAB.1010505@msgid.tls.msk.ru>
On 05/18/2010 08:34 PM, Michael Tokarev wrote:
> 18.05.2010 21:29, Avi Kivity wrote:
>> On 05/18/2010 06:52 PM, Michael Tokarev wrote:
>>> I just re-verified it on current stable
>>> qemu-kvm-0.12.4. The issue is still here,
>>> trivial to trigger.
>>
>> Can you try the patch I just posted?
>
> Applied this one:
>
> [Qemu-devel] [PATCH +stable] block: don't attempt to merge
> overlapping requests
>
> quick tests shows it works correctly so far.
> At least it went further than before, not
> stopping at the "usual" sector 3145727872.
>
> Hmm. Ide has no queue, hence no mergeing,
> that's why it does not occur with ide,
> right? :)
>
Yes.
> Interesting...
Yes. Why would Linux post overlapping requests? makes
0xffffffff00000000 sense.
There may be a guest bug in here too. Christoph?
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
next prev parent reply other threads:[~2010-05-18 17:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-18 15:52 the >1Tb block issue Michael Tokarev
2010-05-18 15:59 ` Daniel P. Berrange
2010-05-18 16:51 ` Michael Tokarev
2010-05-18 16:58 ` Gleb Natapov
2010-05-18 17:29 ` Avi Kivity
2010-05-18 17:34 ` Michael Tokarev
2010-05-18 17:38 ` Avi Kivity [this message]
2010-05-18 18:03 ` Michael Tokarev
2010-05-18 18:09 ` Avi Kivity
2010-05-18 18:38 ` Michael Tokarev
2010-05-18 18:43 ` Michael Tokarev
2010-05-19 8:57 ` Christoph Hellwig
2010-05-19 9:03 ` Avi Kivity
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