linux-kernel - Re: [crash, PATCH] Revert "drm/radeon/kms: move radeon KMS on/off switch out of staging."

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Date:	Fri, 5 Feb 2010 08:32:22 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Dave Airlie <airlied@...il.com>
Cc:	Dave Airlie <airlied@...ux.ie>, torvalds@...ux-foundation.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.sf.net
Subject: Re: [crash, PATCH] Revert "drm/radeon/kms: move radeon KMS on/off
 switch out of staging."


* Dave Airlie <airlied@...il.com> wrote:

> >>
> >> These were random configs - the size doesnt match an allyesconfig, those are
> >> way bigger. My above comment related to the first crash, and to my argument
> >> that all other drivers are fine during bootup - and there's a lot of them.
> >>
> >>> So do you have something you are running after allyesconfig to fix things?
> >>> or have you just got a config that is close enough to allyesconfig.
> >>>
> >>> I'm building kernels with your .config now and boot testing them on the
> >>> full range of hardware I have/
> >>
> >> Thanks. Is there something i can enable to get a better log for you to find
> >> out where (and why) it's hanging? It's still early during bootup so the box
> >> is not particularly debuggable - so i'm not sure i can get a task list dump,
> >> etc., unfortunately.
> >>
> > Do you have NMI watchdog enabled? (does it work that early)
> >
> > a backtrace of where it hangs would be nice,
> >
> > Also a dmesg from booting with drm.debug=15 might help narrow it down
> > also.
> >
> 
> Okay I've booted this on the rv370 + rv380 machines I have, I've no old 
> Athlon's though so I'm trying to get RHTS to give me access to one or two 
> internally,
> 
> Another question, that came to mind, what is there any monitors plugged in? 
> or a KVM or something? if yes can you try without and if no can you try 
> with?
> 
> Also can you add CONFIG_FRAMEBUFFER_CONSOLE as well since I don't think we 
> test often without it.

ok - i'll try your suggestions and send an update - will probably have to 
wait until next week. Feel free to deprioritize the bug until then (i have my 
revert as a short-term band-aid), unless others report similar problems too.

Thanks,

	Ingo
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