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Date: Sat, 30 Jan 2010 13:18:19 -0400
From: Kevin Winchester <kjwinchester@...il.com>
To: torvalds@...ux-foundation.org
Cc: Dave Airlie <airlied@...ux.ie>, dri-devel <dri-devel@...ts.sf.net>,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Radeon KMS regression still present in 2.6.33-rc6
I'm not quite sure if this can be called a regression, since radeon KMS
is still in staging as far as I know, but it was working quite well for
me up until about -rc3, and now it causes a panic on every boot. If I
pass radeon.modeset=0 on the command line, everything works.
I took a picture of the crash details:
http://picasaweb.google.ca/kjwinchester/LinuxKernelPanic#5432580230065271634
I was hoping that the last pull of DRM fixes would correct the issue,
but unfortunately they had no effect.
In case it helps, here is the gdb listing for the problem address:
(gdb) l *(radeon_agp_init+0x1d)
0xffffffff811c1592 is in radeon_agp_init (drivers/gpu/drm/radeon/radeon_agp.c:136).
131 uint32_t agp_status;
132 int default_mode;
133 bool is_v3;
134 int ret;
135
136 if (rdev->ddev->agp->agp_info.aper_size < 32) {
137 dev_warn(rdev->dev, "AGP aperture to small (%dM) "
138 "need at least 32M, disabling AGP\n",
139 rdev->ddev->agp->agp_info.aper_size);
140 return -EINVAL;
Is there any other info I can provide?
Thanks,
--
Kevin Winchester
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