Ubuntu
xserver-xorg-video-ati package

Segfault at X startup with radeon driver

Bug #505112 reported by Philip Jägenstedt on 2010-01-09

This bug report is a duplicate of: Bug #505095: X don't start in Lucid. Edit Remove

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	xserver-xorg-video-ati (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

Binary package hint: xserver-xorg

After updating today and rebooting X crashes a few times before dropping into low-graphics mode. I've saved the logs via the menus there provided. This is the interesting part:

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x4a2528]
1: /usr/bin/X (0x400000+0x650fd) [0x4650fd]
2: /lib/libpthread.so.0 (0x7fd5bdeb6000+0xf780) [0x7fd5bdec5780]
3: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fd5bab1a000+0xcfef0) [0x7fd5babe9ef0]
4: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fd5bab1a000+0xb68c8) [0x7fd5babd08c8]
5: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fd5bab1a000+0xb6c79) [0x7fd5babd0c79]
6: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fd5bab1a000+0x178dd) [0x7fd5bab318dd]
7: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fd5bab1a000+0xd60b1) [0x7fd5babf00b1]
8: /usr/bin/X (AddScreen+0x1d4) [0x42bbf4]
9: /usr/bin/X (InitOutput+0x7b4) [0x473774]
10: /usr/bin/X (0x400000+0x25fa5) [0x425fa5]
11: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7fd5bcbb1c4d]
12: /usr/bin/X (0x400000+0x25cf9) [0x425cf9]
Segmentation fault at address 0x100000004

I believe I have the relevant -dbg packages installed, but I don't know how to make gdm start using those so the backtrace is somewhat useless. If someone can give instructions for attaching gdb at startup or otherwise getting a meaningful backtrace I would be grateful.

ProblemType: Bug
Architecture: amd64
Date: Sat Jan 9 11:54:47 2010
DistroRelease: Ubuntu 10.04
MachineType: System manufacturer System Product Name
Package: xserver-xorg 1:7.5+1ubuntu1
ProcCmdLine: root=UUID=a8894e9a-2938-4850-8561-401f720a162c ro quiet splash nmi_watchdog=0
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-9.13-generic
RelatedPackageVersions:
xserver-xorg 1:7.5+1ubuntu1
libgl1-mesa-glx 7.7-0ubuntu1
libdrm2 2.4.17-0ubuntu1
xserver-xorg-video-intel 2:2.9.1-1ubuntu1
xserver-xorg-video-ati 1:6.12.99+git20091125.0061c4db-0ubuntu1
SourcePackage: xorg
Tags: lucid
Uname: Linux 2.6.32-9-generic x86_64
dmi.bios.date: 02/02/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0701
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A78 PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0701:bd02/02/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
fglrx: Not loaded
system:
distro: Ubuntu
architecture: x86_64kernel: 2.6.32-9-generic

Tags:

Revision history for this message

Philip Jägenstedt (foolip) wrote on 2010-01-09:

BootDmesg.txt Edit (50.6 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (1.6 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.4 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (12.7 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (569 bytes, text/plain; charset="utf-8")
PciDisplay.txt Edit (755 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.3 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (3.6 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (131.5 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (255.8 KiB, text/plain; charset="utf-8")
XorgConf.txt Edit (1.0 KiB, text/plain; charset="utf-8")
XorgLog.txt Edit (25.9 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (25.5 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (1.5 KiB, text/plain; charset="utf-8")
glxinfo.txt Edit (18.6 KiB, text/plain; charset="utf-8")
setxkbmap.txt Edit (245 bytes, text/plain; charset="utf-8")
xdpyinfo.txt Edit (17.2 KiB, text/plain; charset="utf-8")
xkbcomp.txt Edit (44.1 KiB, text/plain; charset="utf-8")

Revision history for this message

Philip Jägenstedt (foolip) wrote on 2010-01-09:

The relevant config files seem to have been automatically attached, so I won't attach the failsafeX-backup-100109114425.tar saved as it looks redundant.

Bryce Harrington (bryce) on 2010-01-09

affects:

xorg (Ubuntu) → xserver-xorg-video-ati (Ubuntu)

Revision history for this message

Philip Jägenstedt (foolip) wrote on 2010-01-09:

After looking at recently updated packages at https://lists.ubuntu.com/archives/lucid-changes/2010-January/date.html I tried downgrading a few (by manually downloading debs and installing all at once with dpkg -i)

First downgrading the xorg-server-* packages to 7.5~3ubuntu4 did not help.

Then downgrading libc6 (and friends) to 2.11~20100104-0ubuntu2 didn't help.

Finally, simultaneously downgrading libdrm to 2.4.14-1ubuntu2 and the mesa packages to 7.6.1~rc3-1ubuntu2 DOES fix the problem. I suspect libdrm since that actually contains radeon-related changes, mesa was only to fix broken packages.

Should this be moved to libdrm and is there anything I could do to help debug this further?

Revision history for this message

zigi (ziegleka) wrote on 2010-01-09:

I confirm this bug.

Revision history for this message

Hans Bakker (hansmbakker) wrote on 2010-01-09:

I am experiencing the bug, too. Installing latest updates on Kubuntu 10.04 prevents the X-server from starting.
System is an Intel Core2Duo P7450; 4 GB RAM; Ati Radeon Mobility 4530 HD.

Part of Xorg.0.log:
[ 0.375361] (II) LoadModule: "exa"
[ 0.375500] (II) Loading /usr/lib/xorg/modules/libexa.so
[ 0.387243] (II) Module exa: vendor="X.Org Foundation"
compiled for 1.7.3.902, module version = 2.5.0
ABI class: X.Org Video Driver, version 6.0
[ 0.387268] (II) UnloadModule: "vesa"
[ 0.387274] (II) Unloading /usr/lib/xorg/modules/drivers/vesa_drv.so
[ 0.387281] (II) UnloadModule: "fbdev"
[ 0.387287] (II) Unloading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[ 0.387293] (II) UnloadModule: "fbdevhw"
[ 0.387298] (II) Unloading /usr/lib/xorg/modules/linux/libfbdevhw.so
[ 0.387306] (--) Depth 24 pixmap format is 32 bpp
[ 0.395758] (II) RADEON(0): [DRI2] Setup complete
[ 0.395850] (II) RADEON(0): Front buffer size: 0K
[ 0.395858] (II) RADEON(0): VRAM usage limit set to 228643K
[ 0.410271] (==) RADEON(0): Backing store disabled
[ 0.410281] (II) RADEON(0): Direct rendering enabled
[ 0.425865] (II) RADEON(0): Setting EXA maxPitchBytes
[ 0.425884] (II) EXA(0): Driver allocated offscreen pixmaps
[ 0.425895] (II) EXA(0): Driver registered support for the following operations:
[ 0.425901] (II) Solid
[ 0.425906] (II) Copy
[ 0.425911] (II) Composite (RENDER acceleration)
[ 0.425916] (II) UploadToScreen
[ 0.425921] (II) DownloadFromScreen

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e887b]
1: /usr/bin/X (0x8048000+0x61a1d) [0x80a9a1d]
2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb776a410]
3: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb7255000+0xafd53) [0xb7304d53]
4: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb7255000+0xb00f8) [0xb73050f8]
5: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb7255000+0xe63b) [0xb726363b]
6: /usr/lib/xorg/modules/drivers/radeon_drv.so (0xb7255000+0xce4e7) [0xb73234e7]
7: /usr/bin/X (AddScreen+0x198) [0x806ce88]
8: /usr/bin/X (InitOutput+0x820) [0x80b9ce0]
9: /usr/bin/X (0x8048000+0x1eb8b) [0x8066b8b]
10: /lib/tls/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0xb74aebd6]
11: /usr/bin/X (0x8048000+0x1e931) [0x8066931]
Segmentation fault at address 0x1

Caught signal 11 (Segmentation fault). Server aborting

Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

ddxSigGiveUp: Closing log

I am experiencing the bug, too. Installing latest updates on Kubuntu 10.04 prevents the X-server from starting.
System is an Intel Core2Duo P7450; 4 GB RAM; Ati Radeon Mobility 4530 HD.

Part of Xorg.0.log:
[    0.375361] (II) LoadModule: "exa"
[    0.375500] (II) Loading /usr/lib/xorg/modules/libexa.so
[    0.387243] (II) Module exa: vendor="X.Org Foundation"
	compiled for 1.7.3.902, module version = 2.5.0
	ABI class: X.Org Video Driver, version 6.0
[    0.387268] (II) UnloadModule: "vesa"
[    0.387274] (II) Unloading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    0.387281] (II) UnloadModule: "fbdev"
[    0.387287] (II) Unloading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    0.387293] (II) UnloadModule: "fbdevhw"
[    0.387298] (II) Unloading /usr/lib/xorg/modules/linux/libfbdevhw.so
[    0.387306] (--) Depth 24 pixmap format is 32 bpp
[    0.395758] (II) RADEON(0): [DRI2] Setup complete
[    0.395850] (II) RADEON(0): Front buffer size: 0K
[    0.395858] (II) RADEON(0): VRAM usage limit set to 228643K
[    0.410271] (==) RADEON(0): Backing store disabled
[    0.410281] (II) RADEON(0): Direct rendering enabled
[    0.425865] (II) RADEON(0): Setting EXA maxPitchBytes
[    0.425884] (II) EXA(0): Driver allocated offscreen pixmaps
[    0.425895] (II) EXA(0): Driver registered support for the following operations:
[    0.425901] (II)         Solid
[    0.425906] (II)         Copy
[    0.425911] (II)         Composite (RENDER acceleration)
[    0.425916] (II)         UploadToScreen
[    0.425921] (II)         DownloadFromScreen

Caught signal 11 (Segmentation fault). Server aborting

Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

ddxSigGiveUp: Closing log

Changed in xserver-xorg-video-ati (Ubuntu):
status:	New → Confirmed

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Segfault at X startup with radeon driver

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