From: Antoine Martin <antoine@nagafix.co.uk>
To: Christoph Hellwig <hch@infradead.org>, kvm@vger.kernel.org
Subject: Re: raw disks no longer work in latest kvm (kvm-88 was fine) [SOLVED]
Date: Mon, 08 Mar 2010 01:43:08 +0700 [thread overview]
Message-ID: <4B93F3BC.9070509@nagafix.co.uk> (raw)
In-Reply-To: <20100307173406.GA3756@infradead.org>
On 03/08/2010 12:34 AM, Christoph Hellwig wrote:
> On Sun, Mar 07, 2010 at 07:30:06PM +0200, Avi Kivity wrote:
>
>> It may also be that glibc is emulating preadv, incorrectly.
>>
> I've done a quick audit of all pathes leading to pread and all seem
> to align correctly. So either a broken glibc emulation or something
> else outside the block layer seems likely.
>
>
>> Antoine, can you check this? ltrace may help, or run 'strings libc.so |
>> grep pread'.
>>
> Or just add an
>
> #undef CONFIG_PREADV
>
> just before the first
>
> #ifdef CONFIG_PREADV
>
> in posix-aio-compat.c and see if that works.
>
It does indeed! qemu-kvm-0.12.3 is now seeing my partition again. woohoo!
So, PREAD makes it break... how, where? What does this mean?
Thanks a lot!
Antoine
next prev parent reply other threads:[~2010-03-07 18:43 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-06 20:48 raw disks no longer work in latest kvm (kvm-88 was fine) Antoine Martin
2010-03-06 21:28 ` Michael Tokarev
2010-03-07 4:14 ` Antoine Martin
2010-03-07 9:32 ` Michael Tokarev
2010-03-07 10:00 ` Christoph Hellwig
2010-03-07 13:12 ` Antoine Martin
2010-03-07 13:52 ` Antoine Martin
2010-03-07 15:15 ` Michael Tokarev
2010-03-07 17:11 ` Antoine Martin
2010-03-07 17:18 ` Avi Kivity
2010-03-07 17:21 ` Christoph Hellwig
2010-03-07 17:30 ` Avi Kivity
2010-03-07 17:34 ` Christoph Hellwig
2010-03-07 18:43 ` Antoine Martin [this message]
2010-03-07 18:55 ` raw disks no longer work in latest kvm (kvm-88 was fine) [SOLVED] Avi Kivity
2010-03-07 18:01 ` raw disks no longer work in latest kvm (kvm-88 was fine) Antoine Martin
2010-03-07 18:47 ` Avi Kivity
2010-03-07 19:07 ` Antoine Martin
2010-03-07 19:10 ` Avi Kivity
2010-03-07 19:13 ` Antoine Martin
2010-03-07 19:17 ` Avi Kivity
2010-03-07 19:25 ` Antoine Martin
2010-03-07 19:35 ` Avi Kivity
2010-03-13 9:51 ` Antoine Martin
2010-03-14 7:34 ` Avi Kivity
2010-04-08 22:00 ` Antoine Martin
2010-05-22 10:44 ` Antoine Martin
2010-05-22 11:17 ` Michael Tokarev
2010-05-22 11:35 ` Antoine Martin
2010-05-23 8:53 ` Antoine Martin
2010-05-23 11:57 ` Avi Kivity
2010-05-23 14:07 ` Antoine Martin
2010-05-23 14:18 ` Avi Kivity
2010-05-23 14:43 ` Antoine Martin
2010-05-23 14:53 ` Antoine Martin
2010-05-23 14:56 ` Avi Kivity
2010-05-23 15:06 ` Antoine Martin
2010-05-23 15:12 ` Avi Kivity
2010-05-23 16:18 ` Antoine Martin
2010-05-23 17:47 ` Stefan Hajnoczi
2010-05-29 9:42 ` Antoine Martin
2010-05-29 9:55 ` Stefan Hajnoczi
2010-05-29 10:34 ` Christoph Hellwig
2010-05-29 11:06 ` Stefan Hajnoczi
2010-05-29 10:34 ` Christoph Hellwig
2010-03-07 19:09 ` Asdo
2010-03-07 19:11 ` Antoine Martin
2010-03-07 19:12 ` Avi Kivity
2010-03-07 16:21 ` Avi Kivity
2010-03-08 16:45 ` Anthony Liguori
2010-03-07 9:36 ` Gleb Natapov
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