Bug 727262

Backtrace:
[    22.390] 0: /usr/bin/Xorg (xorg_backtrace+0x2f) [0x46216f]
[    22.390] 1: /usr/bin/Xorg (0x400000+0x66eb6) [0x466eb6]
[    22.390] 2: /lib64/libpthread.so.0 (0x3632a00000+0xf470) [0x3632a0f470]
[    22.390] 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f2894e2b000+0xea09) [0x7f2894e39a09]
[    22.390] 4: /usr/bin/Xorg (AddScreen+0x17f) [0x433ccf]
[    22.390] 5: /usr/bin/Xorg (InitOutput+0x282) [0x47a0e2]
[    22.390] 6: /usr/bin/Xorg (0x400000+0x22b39) [0x422b39]
[    22.390] 7: /lib64/libc.so.6 (__libc_start_main+0xed) [0x363262150d]
[    22.390] 8: /usr/bin/Xorg (0x400000+0x22fe1) [0x422fe1]
[    22.390] Segmentation fault at address 0x18674c

In function I830ScreenInit:
(from frame 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f2894e2b000+0xea09) [0x7f2894e39a09])
957: 	if (!fbScreenInit(screen, NULL,
958: 			  scrn->virtualX, scrn->virtualY,
959: 			  scrn->xDpi, scrn->yDpi,
960: 			  scrn->displayWidth, scrn->bitsPerPixel))
961: 		return FALSE;
962: 
963: 	if (scrn->bitsPerPixel > 8) {
964: 		/* Fixup RGB ordering */
965: 		visual = screen->visuals + screen->numVisuals;
966: 		while (--visual >= screen->visuals) {
967: >>>>>>> 			if ((visual->class | DynamicClass) == DirectColor) {
968: 				visual->offsetRed = scrn->offset.red;
969: 				visual->offsetGreen = scrn->offset.green;
970: 				visual->offsetBlue = scrn->offset.blue;
971: 				visual->redMask = scrn->mask.red;
972: 				visual->greenMask = scrn->mask.green;
973: 				visual->blueMask = scrn->mask.blue;
974: 			}
975: 		}
976: 	}
977: 


Frame 4: /usr/bin/Xorg (AddScreen+0x17f) [0x433ccf]
	/usr/src/debug/xorg-server-20110510/dix/dispatch.c:3906
	AddScreen
Frame 5: /usr/bin/Xorg (InitOutput+0x282) [0x47a0e2]
	/usr/src/debug/xorg-server-20110510/hw/xfree86/common/xf86Init.c:758
	InitOutput
Frame 6: /usr/bin/Xorg (0x400000+0x22b39) [0x422b39]
	/usr/src/debug/xorg-server-20110510/dix/main.c:208
	main

This is fixed by downgrading to xorg-x11-server-Xorg-1.10.3-1.fc15.x86_64.

Alternatively, fixed by https://admin.fedoraproject.org/updates/xorg-x11-drv-intel-2.15.901-1.fc16

xorg-x11-drv-intel-2.15.901-1.fc16 has been submitted as an update for Fedora 16.
https://admin.fedoraproject.org/updates/xorg-x11-drv-intel-2.15.901-1.fc16

Package xorg-x11-drv-intel-2.15.901-1.fc16:
* should fix your issue,
* was pushed to the Fedora 16 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing xorg-x11-drv-intel-2.15.901-1.fc16'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/xorg-x11-drv-intel-2.15.901-1.fc16
then log in and leave karma (feedback).

Maybe this is just me being dumb, but while trying to track down another problem I pulled the above build (xorg-x11-drv-intel-2.15.901-1.fc16.x86_64) and installed it on an F15 system.  It installed without problems but the server segfaults with a backtrace mostly identical to that in comment 2.  I'm not sure if it's just not expected to work on an F15 system so don't want to leave pointless karma, but due to the similarity of the backtrace I figured I'd report it here.

[    22.058] 0: /usr/bin/X (xorg_backtrace+0x2f) [0x45e7ff]
[    22.058] 1: /usr/bin/X (0x400000+0x62e86) [0x462e86]
[    22.058] 2: /lib64/libpthread.so.0 (0x3c94c00000+0xeeb0) [0x3c94c0eeb0]
[    22.058] 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f20ffba3000+0xe549) [0x7f20ffbb1549]
[    22.058] 4: /usr/bin/X (AddScreen+0x17f) [0x42f10f]
[    22.058] 5: /usr/bin/X (InitOutput+0x282) [0x4721e2]
[    22.058] 6: /usr/bin/X (0x400000+0x22c69) [0x422c69]
[    22.059] 7: /lib64/libc.so.6 (__libc_start_main+0xed) [0x3c9402139d]
[    22.059] 8: /usr/bin/X (0x400000+0x23101) [0x423101]
[    22.059] Segmentation fault at address 0x18674e

OK, so it seems that the backtrace goes away if I also update to xorg-x11-server-Xorg-1.10.99.1-10.20110510.fc16.x86_64 (along with various dependencies).  So I guess that backtrace just indicates a server/driver mismatch.

xorg-x11-drv-intel-2.15.901-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.