linux-kernel - Re: 3.12.9 kern.log spam from vgaswitcheroo

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Message-ID: <CADnq5_NVZRpjpEGc1=mBDDs8bXEKaFkM93PCs-cQeHPDcyFRcg@mail.gmail.com>
Date:	Sun, 8 Jun 2014 21:15:01 -0400
From:	Alex Deucher <alexdeucher@...il.com>
To:	Dave Airlie <airlied@...il.com>
Cc:	Howard Chu <hyc@...as.com>,
	Linux Kernel Mailing List <Linux-Kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: 3.12.9 kern.log spam from vgaswitcheroo

On Sat, Jun 7, 2014 at 4:18 PM, Dave Airlie <airlied@...il.com> wrote:
> cc'ing list
>
> On 8 June 2014 04:08, Howard Chu <hyc@...as.com> wrote:
>> On Asus NP56D, if you use vgaswitcheroo to turn off the discrete GPU, the
>> kernel starts spewing these messages endlessly, until /var/log partition
>> fills up:
>>
>> Jun  7 17:40:27 gamba kernel: [470008.702322] [drm:radeon_cs_parser_init]
>> *ERROR* VM not ac
>> tive on asic!
>> Jun  7 17:40:27 gamba kernel: [470008.702325] [drm:radeon_cs_ioctl] *ERROR*
>> Failed to initi
>> alize parser !
>> Jun  7 17:40:27 gamba kernel: [470008.702385] [drm:radeon_cs_parser_init]
>> *ERROR* VM not ac
>> tive on asic!
>> Jun  7 17:40:27 gamba kernel: [470008.702389] [drm:radeon_cs_ioctl] *ERROR*
>> Failed to initi
>> alize parser !
>>
>> Turning the discrete GPU back on stops the stream of messages.

Something is trying to access the GPU while it's off.  Make sure your
version of mesa has this patch:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cf0172d46ab940a691da6516057c81f28961482f

Alex


>> --
>>   -- Howard Chu
>>   CTO, Symas Corp.           http://www.symas.com
>>   Director, Highland Sun     http://highlandsun.com/hyc/
>>   Chief Architect, OpenLDAP  http://www.openldap.org/project/
>> --
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