kernel panic with x11-drm-20090320 and gentoo-sources-2.6.27

fb · l33t Joined: 08 Dec 2003 Posts: 636 Location: New Zealand

I got 2.6.27-r8. the latest stable.
I get occasional kernel panic with that combination:
EIP: [<f949e036>] radeon_get_vblank_counter+0x76/0xd0 [radeon] SS:SEP 0068:c0469efc

video card is radeon 9200SE.
Is there a minimal kernel requirement for this verion of x11-drm?

DirtyHairy · Posted: Wed Mar 25, 2009 11:27 pm Post subject:

I am using the latest git DRM (compiled myself, no ebuild) on 2.6.27-r8 and a radeon mobility X1300 and it works fine for me, no kernel panics.

fb · l33t Joined: 08 Dec 2003 Posts: 636 Location: New Zealand

DirtyHairy · Posted: Thu Mar 26, 2009 10:36 am Post subject:

Hi fb!

Yes, I still have got my powermac, but I also don't have much time for toying around with it

I don't know about the VGA (can't image that it is a problem though), but come to think of it, I think that some work has been done on vsync between the 2.6.27 in-kernel drm and git (I need the git version to get vblank working on my R500), so some regressions may have popped up. Does the in-kernel drm work?

The_P · Apprentice Joined: 13 Mar 2004 Posts: 248

I have the same problem. I tested kernel tuxonice-2.6.24-r9, tuxonice-2.6.28-r8 and gentoo-2.6.29. I can't find a working kernel version. Is there any solution for this i was also not able to install an older version of x11-drm with the 2.6.29 kernel.

fb · l33t Joined: 08 Dec 2003 Posts: 636 Location: New Zealand

Sinker · n00b Joined: 21 Jul 2008 Posts: 19

I, too, am having this problem with x11-drm-20090320 with a Radeon Mobility 9000 on a Thinkpad. Tried with both 2.6.28 and 2.6.29 kernels. Only happens about 3 to 4 seconds after I shut down X, though, but not if I restart X (as in log out and have gdm restart it). Now I can't even re-emerge this version of x11-drm (the error is below), but I'm not sure if that's related. I've no idea when it started to do this as I don't shut the laptop down that often.

fb · l33t Joined: 08 Dec 2003 Posts: 636 Location: New Zealand

DMoL · Posted: Sat Jun 06, 2009 9:03 pm Post subject:

I have the same trouble on my Thinkpad r51e with radeon xpress 200m.
I detected, that using hibernate-ram on kernel 2.6.29-tux-on-ice and 2.6.30-r8 causes kernel panic. If I do "rmmod dri radeon", all works perfectly. Damn! I can't use TON to quick suspend/resume! The only solution I know is to shutdown Xorg, unload the modules and hibernate... But vesa video driver render my desktop slowly...

Is it possible to localize the bug somehow and file it? Does it relates to x11-base/x11-drm or x11-drivers/xf86-video-ati?

fb · l33t Joined: 08 Dec 2003 Posts: 636 Location: New Zealand

DaggyStyle · Watchman Joined: 22 Mar 2006 Posts: 5891

no problems here with drm-999999999 and toi 2.6.29-r3
_________________
Only two things are infinite, the universe and human stupidity and I'm not sure about the former - Albert Einstein

bunder · Bodhisattva Joined: 10 Apr 2004 Posts: 5932

i have this problem too...

2.6.27-r8 + RV350 (mobility 9700)

rickvernam · Guru Joined: 09 Jul 2004 Posts: 312

This is still happening, though if I use the x11-drm previous to -20090320 I don't experience this crash.
I have an rv350 running amd64 stable.

Are others' having issues still, or have others seen the problem resolved?
I did a quick 5 minute search at bugs.gentoo.org, but nothing obvious turned up - does anybody know of an open bug anywhere?

Lets get this bugger solved!

Thanks,
-Rick

rickvernam · Guru Joined: 09 Jul 2004 Posts: 312

it seems the in-kernel drm in gentoo-sources-2.6.30-r2 does not exhibit this crash.

bandreabis · Posted: Tue Aug 11, 2009 1:49 pm Post subject:

3P · n00b Joined: 12 Aug 2009 Posts: 1

I also have the same problem with Radeon R300 - it only works with old versions of x11-drm (<20090302).
Recent kernels (2.6.31_rc5) crash randomly when using kernel's DRM modules, and the x11-drm package doesn't compile against it.
Results for newer versions of x11-drm (20090805, 20090622, 20090320):

Kernels 2.6.29 doesn't load the radeon module properly.
Kernels <2.6.29 crash on shutdown , probably while unloading radeon.ko. Using the newest version of libdrm makes no difference.
Kernel 2.6.30 doesn't work with my sound card, so I didn't test it

I still need to check if x11-drm-20080710 is really stable - I haven't used it much yet.

gsra99 · Tux's lil' helper Joined: 06 Jan 2008 Posts: 103

There is a check_null_pointer patch to solve this problem. It was reported in bugzilla, but I do not have the link. Here is the patch:

diff --git a/shared-core/radeon_irq.c b/shared-core/radeon_irq.c
index 60654b2..9ede679 100644
--- a/shared-core/radeon_irq.c
+++ b/shared-core/radeon_irq.c
@@ -295,6 +295,9 @@ u32 radeon_get_vblank_counter(struct drm_device *dev, int c$
return -EINVAL;
}

+ if (!dev_priv->mmio)
+ return -EINVAL;
+
if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS690) {
if (crtc == 0)
return RADEON_READ(R500_D1CRTC_FRAME_COUNT);

Apply this patch and the problem should be solved. It works for my Radeon X700 anyway.

OK found the link:

https://bugs.gentoo.org/show_bug.cgi?id=264280

The patch and custom ebuild are there. I am also using kernel 2.6.27-gentoo-r10.

rncwnd · n00b Joined: 13 Jun 2003 Posts: 69 Location: Germany

Patch works also with x11-drm-20090805. Tried it!

Relevant system informations:

vanilla-sources 2.6.30.5
xf86-video-ati-6.12.2-r1
x11-drm-20090805

Thanks for the patch!