From: Tejun Heo <htejun@gmail.com>
To: "zhao, forrest" <forrest.zhao@intel.com>
Cc: jeff@garzik.org, linux-ide@vger.kernel.org
Subject: Re: Maybe a corrupted BIOS?
Date: Mon, 12 Jun 2006 14:14:49 +0900 [thread overview]
Message-ID: <448CF849.7010403@gmail.com> (raw)
In-Reply-To: <1150087543.5721.49.camel@forrest26.sh.intel.com>
zhao, forrest wrote:
> Hi, Jeff
>
> I encountered a tricky problem. Let me described it from start.
>
> This morning I applied the "AHCI suspend/resume" patch against latest
> #upstream without much modification, then after a round of suspend/
> resume, then system can't boot from AHCI mode, also can't boot from
> "enhanced mode with AHCI disabled". But it can boot from "compatible
> mode" with ata_piix driver to drive the hardware.
>
> So now I'm totally clueless about how to make AHCI mode come back to
> life. It seems that I need to trigger a low-level re-initialization of
> SATA controller. Have you ever met such weird behavior before?
Remove power, wait for a while, and re-apply power. Resume failure from
memsleep puts my p5ld2 in a pretty weird state (POSTing hangs).
Removing power helps in my case.
--
tejun
next prev parent reply other threads:[~2006-06-12 5:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-12 4:45 Maybe a corrupted BIOS? zhao, forrest
2006-06-12 5:14 ` Tejun Heo [this message]
2006-06-12 6:58 ` Jeff Garzik
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