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Date: Tue, 07 Apr 2015 20:54:18 +0200
From: Peter Lieven <pl@kamp.de>
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Subject: Re: [Qemu-devel] [Qemu-block] Migration sometimes fails with IDE
 and Qemu 2.2.1
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To: Paolo Bonzini <pbonzini@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: John Snow <jsnow@redhat.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>, qemu-block@nongnu.org

Am 07.04.2015 um 17:14 schrieb Paolo Bonzini:
>
> On 07/04/2015 17:11, Peter Lieven wrote:
>>> I'm not sure at what kernel version the switch is, but newer kernels use some
>>> code shared with the newer SATA world (libata?)  where as older kernels had
>>> separate IDE code, so the behaviour of the two can be quite different.
>> Thats a good point. I will check what the kernels have.
>> I remember that there was sth like a problem with error handling in
>> the old drivers? Paolo, you worked a lot on IDE lately. Do you remember?
> No, I don't know...  I didn't work a lot on IDE, those patches were all
> several years old and finally John shepherded them in. :)

Okay, I was thinking you just worked on that code and were the
new IDE expert ;-)

>
> Still, what David says is correct.  At least RHEL5's 2.6.18 defaulted to
> the old IDE drivers (/dev/hdXNN).

I can confirm that its /dev/hdX.

Peter