[Bug 36007] New: [natty] system freezes on boot without disabling KMS

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Apr 5 15:21:37 PDT 2011 

https://bugs.freedesktop.org/show_bug.cgi?id=36007

           Summary: [natty] system freezes on boot without disabling KMS
           Product: xorg
           Version: 7.6
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Keywords: regression
          Severity: major
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Forwarding this bug from Ubuntu reporter LGB [Gbor Lnrt]:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/735126

[Problem]
With KMS enabled, the kernel fails to boot, with errors appearing starting with
the module loaded after the drm module (see sample kernel output below).  If
KMS is disabled, it boots properly.

This is a regression between the maverick kernel and the natty kernel.

[   19.142821] [drm] ring test succeeded in 0 usecs
[   19.143057] [drm] radeon: ib pool ready.
[   19.143156] [drm] ib test succeeded in 0 usecs
[   19.143163] [drm] Enabling audio support
[   28.864008] eth0: no IPv6 routers present
[   79.112037] ieee80211 phy0: Failed to initialize wep: -110
[   79.112066] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[   79.112902] ath5k phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70)
[  243.716037] INFO: task jbd2/sda1-8:263 blocked for more than 120 seconds.
[  243.716050] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[  243.716065] jbd2/sda1-8     D f6ee5860     0   263      2 0x00000000
[  243.716082]  f6a0be24 00000046 00000400 f6ee5860 00000400 00000008 f6ee5aec
c1877680
[  243.716111]  14d02157 00000005 f6ee5ae8 c1877680 c1877680 f7887680 f6ee5860
f75f25e0
[  243.716141]  00000000 efaece80 00000800 00000000 00000000 f691a788 f6a0be1c
c1081938
[  243.716175] Call Trace:
[  243.716191]  [<c1081938>] ? ktime_get_ts+0xf8/0x120
[  243.716205]  [<c152f84f>] io_schedule+0x5f/0xa0
[  243.716213]  [<c11598c8>] sync_buffer+0x38/0x40
[  243.716225]  [<c153004d>] __wait_on_bit+0x4d/0x70
[  243.716232]  [<c1159890>] ? sync_buffer+0x0/0x40
[  243.716244]  [<c1159890>] ? sync_buffer+0x0/0x40


[Original Description]
After upgrading maverick (x86 32 bit system but with PAE kernel) system does
not boot, after some disk activity the upper half of the screen is filled with
garbage and no more disk activity. Booting an older kernel (from maverick)
works. Also it work with natty's kernel if I give radeon.modeset=0 parameter at
grub but then there is now hw accel. (glxinfo reports software rendering,
booting natty with maverick's kernel seems to have it, glxinfo reports galium
as the render string then).

This is a Toshiba Satellite A300 notebook with 4G of RAM and video hw:

01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3400
Series

xserver-xorg-video-radeon                            1:6.14.0-0ubuntu2

Linux orion 2.6.38-6-generic-pae #34-Ubuntu SMP Tue Mar 8 15:47:54 UTC 2011
i686 i686 i386 GNU/Linux

DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-radeon 1:6.14.0-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic-pae 2.6.38-rc7
Uname: Linux 2.6.38-6-generic-pae i686
Architecture: i386
CompizPlugins:
[core,bailer,detection,composite,opengl,compiztoolbox,decor,regex,mousepoll,resize,wall,grid,move,animation,place,snap,session,imgpng,workarounds,vpswitch,gnomecompat,expo,ezoom,staticswitcher,fade,scale]
CompositorRunning: None
Date: Mon Mar 14 22:03:35 2011
DistUpgraded: Log time: 2011-03-13 16:50:20.128908
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
 vboxhost, 4.0.0, 2.6.35-24-generic-pae, i686: installed 
 vboxhost, 4.0.0, 2.6.35-28-generic-pae, i686: installed 
 vboxhost, 4.0.0, 2.6.35-25-generic-pae, i686: installed 
 vboxhost, 4.0.0, 2.6.35-27-generic-pae, i686: installed 
 vboxhost, 4.0.0, 2.6.35-26-generic-pae, i686: installed
GraphicsCard:
 ATI Technologies Inc Mobility Radeon HD 3400 Series [1002:95c4] (prog-if 00
[VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff1e]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: TOSHIBA Satellite A300
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8ProcKernelCmdLine:
BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic-pae
root=UUID=14c446e2-e9e0-47a2-992e-f04d3f9b7bf3 ro quiet splash vt.handoff=7
radeon.modeset=0
Renderer: Software
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: Upgraded to natty on 2011-03-13 (1 days ago)
dmi.bios.date: 03/20/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: 1.90
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnINSYDE:bvr1.90:bd03/20/2009:svnTOSHIBA:pnSatelliteA300:pvrPSAGCE-0KC00FHU:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Satellite A300
dmi.product.version: PSAGCE-0KC00FHU
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.4-0ubuntu4
version.libdrm2: libdrm2 2.4.23-1ubuntu3
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu1
version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20110107+b795ca6e-0ubuntu5

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