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Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after med
From: |
David Ahern |
Subject: |
Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change |
Date: |
Mon, 04 Apr 2011 11:54:25 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/3.1.9-0.39.b3pre.fc14 Thunderbird/3.1.9 |
On 04/04/11 07:38, Anthony Liguori wrote:
> On 04/04/2011 08:22 AM, Avi Kivity wrote:
>> On 04/03/2011 02:57 PM, Stefan Hajnoczi wrote:
>>> In order for media change to work with Linux host CD-ROM it is
>>> necessary to reopen the file (otherwise the inode size will not
>>> refresh, this is an issue with existing kernels).
>>>
>>
>> Maybe we should fix the bug in Linux (and backport as necessary)?
>>
>> I think cd-rom assignment is sufficiently obscure that we can require
>> a fixed kernel instead of providing a workaround.
>
> Do reads fail after CD change? Or do they succeed and the size is just
> reported incorrectly?
>
> If it's the later, I'd agree that it needs fixing in the kernel. If
> it's the former, I'd say it's clearly a feature.
In January 2010 I was seeing old data -- data from the prior CD -- in
the guest after the media change.
David
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, (continued)
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Avi Kivity, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Avi Kivity, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Avi Kivity, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/06
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Stefan Hajnoczi, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Amit Shah, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change,
David Ahern <=
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Stefan Hajnoczi, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, David Ahern, 2011/04/05
- Re: [Qemu-devel] [PATCH v2 3/3] raw-posix: Re-open host CD-ROM after media change, Stefan Hajnoczi, 2011/04/05