From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Joerg Dorchain <joerg@dorchain.net>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: 2.6.13 ati (ibook) frambuffer problem
Date: Sat, 15 Oct 2005 07:58:25 +1000 [thread overview]
Message-ID: <1129327105.21765.39.camel@gaston> (raw)
In-Reply-To: <20051014123823.GA9477@Redstar.dorchain.net>
On Fri, 2005-10-14 at 14:38 +0200, Joerg Dorchain wrote:
> Hi,
>
> after upgrading to a vanilla 2.6.13 kernel (from 2.6.12) there seems to
> be a problem with the framebuffer driver I use for my ibook. The display
> statz at the opnpic message, and after a while the machine reboot (looks
> like panic().
>
> Can someone confirm? Or better, point me to a patch ;-)?
>
> For given reason, what is the common method to debug crashes before the
> display is working?
This looks like a bug that was introduced by linus in 2.6.13 and that I
_think_ should be fixed in the stable series, so if you get 2.6.13.x (x
= latest stable release) it should work.
Usually, to debug those crashes, I'm adding a hack to kernel/printk.c to
call btext_drawstring() (with some test to make sure to do that not too
early, typically only after setup_arch has been called).
Ben.
next prev parent reply other threads:[~2005-10-14 22:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-14 12:38 2.6.13 ati (ibook) frambuffer problem Joerg Dorchain
2005-10-14 21:58 ` Benjamin Herrenschmidt [this message]
2005-10-16 8:17 ` Joerg Dorchain
2005-10-16 8:42 ` Benjamin Herrenschmidt
2005-10-17 18:34 ` Joerg Dorchain
2005-10-17 21:44 ` Benjamin Herrenschmidt
2005-10-18 8:49 ` Joerg Dorchain
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