From: Jan Kiszka <jan.kiszka@siemens.com>
To: Alexander Graf <agraf@suse.de>
Cc: qemu-devel <qemu-devel@nongnu.org>, Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [Qemu-devel] Sporadic AHCI boot failures
Date: Thu, 03 May 2012 09:17:24 -0300 [thread overview]
Message-ID: <4FA27754.1070005@siemens.com> (raw)
In-Reply-To: <1B2F3665-DC41-4553-800E-D14A0F876553@suse.de>
On 2012-05-02 18:26, Alexander Graf wrote:
>
>
> On 02.05.2012, at 20:14, Jan Kiszka <jan.kiszka@siemens.com> wrote:
>
>> Hi,
>>
>> I'm running a Win7 VM over AHCI, rebooting quite frequently. Depending
>> on host system load, I'm facing a lot of sporadic boot failures (disk
>> not found), obviously in SeaBIOS. Could it be that some timeout in the
>> init code bites us here? AHCI_LINK_TIMEOUT or AHCI_RESET_TIMEOUT? Just a
>> guess, I haven't debugged this yet.
>
> Hm, I'd be surprised if that's the problem.
>
> Do things work again after system_reset on the monitor? Maybe the reset function is just broken and we finish some asynchronous stuff after reset?
The problem both occurs after power on as well as reset. Sometimes it
takes multiple system_reset calls to get the system booting.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2012-05-03 12:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-02 18:14 [Qemu-devel] Sporadic AHCI boot failures Jan Kiszka
2012-05-02 21:26 ` Alexander Graf
2012-05-03 12:17 ` Jan Kiszka [this message]
2012-06-05 19:08 ` Jan Kiszka
2012-06-06 7:53 ` Avi Kivity
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