Bug 712540

Thanks for the bug report.  We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.

Please add drm.debug=0x04 to the kernel command line, restart computer, and attach

* your X server config file (/etc/X11/xorg.conf, if available),
* X server log file (/var/log/Xorg.*.log)
* output of the dmesg command, and
* system log (/var/log/messages)

to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above.

We will review this issue again once you've had a chance to attach this information.

Thanks in advance.



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

I have no xorg.conf file, but the rest are attached.

Created attachment 504256 [details]
Xorg.0.log

Created attachment 504257 [details]
dmesg output with drm.debug=0x04

Created attachment 504258 [details]
/var/log/messages

hmm... I don't see any crash in the xorg log file. can you please reproduce the crash with the drm.debug=0x04, restart xorg, and attach Xorg.0.log.old or any other recent log file that ends with the crash?



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

OK, but how to I prevent gdm from restarting Xorg after a crash on Fedora 15?

You don't need to.
After it restarts, simply grab /var/log/Xorg.0.log.old and attach it here.



-- 
Fedora Bugzappers volunteer triage team
https://fedoraproject.org/wiki/BugZappers

Created attachment 504263 [details]
/var/log/Xorg.0.log.old

I installed debuginfo for the intel driver and it still doesn't show up in the backtrace -- how do I get Xorg to give the debuginfo in the backtrace?

This is a Heisenbug -- since installing the debuginfo, the bug has suddenly become quite hard to trigger.  I have to restart the X server several times before I can trigger the bug by opening the image.

(In reply to comment #9)
> Created attachment 504263 [details]
> /var/log/Xorg.0.log.old
> 
> I installed debuginfo for the intel driver and it still doesn't show up in the
> backtrace -- how do I get Xorg to give the debuginfo in the backtrace?

Xorg catches backtraces on its own and abrt doesn't get involved at all. So here we have nice backtrace in Xorg.0.log:

Backtrace:
[   161.129] 0: /usr/bin/Xorg (xorg_backtrace+0x2f) [0x4a142f]
[   161.129] 1: /usr/bin/Xorg (0x400000+0x62316) [0x462316]
[   161.129] 2: /lib64/libpthread.so.0 (0x3aad000000+0xeeb0) [0x3aad00eeb0]
[   161.129] 3: /lib64/libc.so.6 (0x3aac800000+0x12dff1) [0x3aac92dff1]
[   161.129] 4: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x11a46) [0x7f5d96ff0a46]
[   161.129] 5: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x133a6) [0x7f5d96ff23a6]
[   161.129] 6: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x2761d) [0x7f5d9700661d]
[   161.129] 7: /usr/bin/Xorg (0x400000+0xdc199) [0x4dc199]
[   161.129] 8: /usr/bin/Xorg (0x400000+0x2b91d) [0x42b91d]
[   161.129] 9: /usr/bin/Xorg (0x400000+0x2ec11) [0x42ec11]
[   161.129] 10: /usr/bin/Xorg (0x400000+0x22e1a) [0x422e1a]
[   161.129] 11: /lib64/libc.so.6 (__libc_start_main+0xed) [0x3aac82139d]
[   161.129] 12: /usr/bin/Xorg (0x400000+0x23101) [0x423101]
[   161.129] Bus error at address 0x7f5d8451d010
[   161.129] 
Fatal server error:
[   161.129] Caught signal 7 (Bus error). Server aborting
[   161.129] 
[   161.129] 
Please consult the Fedora Project support 
	 at http://wiki.x.org
 for help.

No, I saw that, but there is no symbol information in that backtrace. I was asking how to get Xorg to add symbol information. Is that not possible?

(In reply to comment #11)
> No, I saw that, but there is no symbol information in that backtrace. I was
> asking how to get Xorg to add symbol information. Is that not possible?

Unfortunately, there is no easy way ... working on some automagical (or at least semi-automagical) way, but not done yet.

---------------------------------
In function intel_uxa_pixmap_put_image:
(from frame 4: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x11a46) [0x7f5d96ff0a46])
742: 		char *dst = priv->bo->virtual;
743: 		int row_length = w * cpp;
744: 		int num_rows = h;
745: 		if (row_length == src_pitch && src_pitch == stride)
746: 			num_rows = 1, row_length *= h;
747: 		dst += y * stride + x * cpp;
748: 		do {
749: 			memcpy (dst, src, row_length);
750: 			src += src_pitch;
751: 			dst += stride;
752: >>>>>>> 		} while (--num_rows);
753: 		drm_intel_gem_bo_unmap_gtt(priv->bo);
754: 		ret = TRUE;
755: 	}
756: 
757: 	return ret;
758: }
759: 
760: static Bool intel_uxa_put_image(PixmapPtr pixmap,
761: 				int x, int y,
762: 				int w, int h,


Frame 5: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x133a6) [0x7f5d96ff23a6]
Souce file: /usr/src/debug/xf86-video-intel-2.15.0/src/intel_uxa.c
In function intel_uxa_put_image, line no. 806
Frame 6: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f5d96fdf000+0x2761d) [0x7f5d9700661d]
Souce file: /usr/src/debug/xf86-video-intel-2.15.0/uxa/uxa-accel.c
In function uxa_do_put_image, line no. 342
Frame 7: /usr/bin/Xorg (0x400000+0xdc199) [0x4dc199]
Souce file: /usr/src/debug/xorg-server-1.10.2/miext/damage/damage.c
In function damagePutImage, line no. 880
Frame 8: /usr/bin/Xorg (0x400000+0x2b91d) [0x42b91d]
Souce file: /usr/src/debug/xorg-server-1.10.2/dix/dispatch.c
In function ProcPutImage, line no. 1990
Frame 9: /usr/bin/Xorg (0x400000+0x2ec11) [0x42ec11]
Souce file: /usr/src/debug/xorg-server-1.10.2/dix/dispatch.c
In function Dispatch, line no. 431
Frame 10: /usr/bin/Xorg (0x400000+0x22e1a) [0x422e1a]
Souce file: /usr/src/debug/xorg-server-1.10.2/dix/main.c
In function main, line no. 296
bradford:xorg-backtrace-analyze (master) $

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