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From: Andrew Morton <akpm@osdl.org>
To: Wink Saville <wink@saville.com>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Matthias Hentges <oe@hentges.net>,
	linux-kernel@vger.kernel.org,
	linux-fbdev-devel@lists.sourceforge.net
Subject: Re: Hang in fb_notifier_call_chain with nvidia framebuffer
Date: Sat, 7 Oct 2006 23:01:29 -0700	[thread overview]
Message-ID: <20061007230129.323ac807.akpm@osdl.org> (raw)
In-Reply-To: <4523E09C.9000609@saville.com>

On Wed, 04 Oct 2006 09:26:04 -0700
Wink Saville <wink@saville.com> wrote:

> Attached in the zip file is:
> 
> log-hang1.txt	-> log showing hang
> cfg-hang1	-> config file for hang condition
> cfg-ok		-> config file that works
> fbmem.c		-> Modifications to register_framebuffer
> 
> To possibly assist I turned on debugging in nvidia.c and found that it 
> hung in the call to register_framebuffer. I then added some additional 
> debug in that routine and it appears the hang occurs in the call to 
> fb_notifier_call_chain.
> 
> Please let me know what else maybe needed.

Please:

- get sysrq working:

	set CONFIG_MAGIC_SYSRQ=y, rebuild, reboot
	echo 1 > /proc/sys/kernel/sysrq
	dmesg -n 8

- make it hang

- Hit alt-sysrq-T

- Send us the resulting output

Thanks.

  reply	other threads:[~2006-10-08  6:01 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-02  1:12 PCI: BIOS Bug: MCFG area at f0000000 is not E820-reserved with 2.6.18 kernel Wink Saville
2006-10-02  9:54 ` Andi Kleen
2006-10-02 15:10   ` Wink Saville
2006-10-02 15:22     ` Andi Kleen
2006-10-02 16:08       ` Wink Saville
2006-10-02 17:00 ` Matthias Hentges
2006-10-03  4:12   ` Wink Saville
2006-10-03 12:23     ` Matthias Hentges
2006-10-03 16:33       ` Wink Saville
2006-10-03 13:30     ` Arjan van de Ven
2006-10-03 16:37       ` Wink Saville
2006-10-04 16:26       ` Hang in fb_notifier_call_chain with nvidia framebuffer Wink Saville
2006-10-08  6:01         ` Andrew Morton [this message]
2006-10-08  8:14           ` Wink Saville
2006-10-08  9:07             ` Andrew Morton
2006-10-08 18:06               ` Wink Saville
2006-10-05  6:28       ` 2.6.18 Hang in fb_notifier_call_chain while booting " Wink Saville

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