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From: Borislav Petkov <bp@alien8.de>
To: Kelvin Gonzalez <kelvin.gonzalezvivas@gmail.com>
Cc: "'Jörg Rödel'" <joro@8bytes.org>, linux-kernel@vger.kernel.org
Subject: Re: Desktop PC freezes after showing many times the lines "AMD-Vi: Completion-Wait loop timed out" and "BUG: soft lockup - CPU#2 stuck for 23s!"
Date: Tue, 1 Jul 2014 15:44:15 +0200	[thread overview]
Message-ID: <20140701134415.GA5438@pd.tnic> (raw)
In-Reply-To: <006a01cf9530$b3117bb0$19347310$@gmail.com>

Hi Kelvin,

On Tue, Jul 01, 2014 at 03:30:59PM +0200, Kelvin Gonzalez wrote:
> Thank you Joerg and Borislav,

sure, np.

Btw, please do not top-post when replying to that thread.

> There is no BIOS Update available for this Mother Board. It has the most
> recent from Jan 2014. And I didn't find any option available in the BIOS
> Menu to disable the IOMMU.
> 
> I tried yesterday a fresh install passing the 'amd_iommu=off' to the kernel
> and everything is working fine. No delays/hangs, etc. The workaround works
> just perfect.

Well, this disables the IOMMU on your machine and it works perfectly
because you're simply not using it anymore. :-)

If you get a BIOS update at some point and/or want to complain to the
board manufacturer to give you a BIOS update and to fix the IOMMU setup,
you could try to enable it again (i.e., remove the cmdline option) and
report back to us.

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

      reply	other threads:[~2014-07-01 13:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-28 23:59 Desktop PC freezes after showing many times the lines "AMD-Vi: Completion-Wait loop timed out" and "BUG: soft lockup - CPU#2 stuck for 23s!" Kelvin Gonzalez
2014-06-29  9:38 ` Borislav Petkov
2014-06-30  8:13   ` Jörg Rödel
2014-07-01 13:30     ` Kelvin Gonzalez
2014-07-01 13:44       ` Borislav Petkov [this message]

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