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From: John Snow <jsnow@redhat.com>
To: Hannes Reinecke <hare@suse.de>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	Alexander Graf <agraf@suse.de>
Subject: Re: [Qemu-devel] SATA CD-ROM booting failure with latest OVMF
Date: Sat, 04 Jul 2015 01:28:06 -0400	[thread overview]
Message-ID: <55976EE6.1050709@redhat.com> (raw)
In-Reply-To: <5596990C.5090204@suse.de>



On 07/03/2015 10:15 AM, Hannes Reinecke wrote:
> 
> After some _very_ tedious debugging I've found this to be an issue
> with the ahci driver in qemu; ATAPI PIO transfers seem to be
> slightly buggy. Enabling 'atapi_dma' transfers in atapi driver (even
> for PIO mode) makes everything work again.

PIO again! Alright, fun. Try a git bisect, except cheat and try before
and after 1cbdd96813474de4191b0b37b859a5460373093b -- That's my wild guess.

Will check it out Monday, otherwise.

Thanks,
--John

  reply	other threads:[~2015-07-04  5:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-03 14:15 [Qemu-devel] SATA CD-ROM booting failure with latest OVMF Hannes Reinecke
2015-07-04  5:28 ` John Snow [this message]
2015-07-08 22:53 ` John Snow

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