Public bug reported:
Upgrading the kernel from 2.6.32-19-generic to 2.6.32-20-generic
resulted in a desktop freeze after just 30 minutes of work.
$ uname -a
Linux purgatory 2.6.32-20-generic #29-Ubuntu SMP Fri Apr 9 20:35:00 UTC 2010
x86_64 GNU/Linux
$ lsmod | egrep '(radeon|fb)'
fbcon 39270 72
tileblit 2487 1 fbcon
font 8053 1 fbcon
bitblit 5811 1 fbcon
vga16fb 12757 0
vgastate 9857 1 vga16fb
radeon 739547 2
ttm 60815 1 radeon
drm_kms_helper 30710 1 radeon
drm 198866 4 radeon,ttm,drm_kms_helper
i2c_algo_bit 6024 1 radeon
The card is a ATI Radeon X1550:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV505 CE [Radeon
X1550 64-bit] [1002:715f]
Subsystem: Micro-Star International Co., Ltd. Device [1462:0680]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 26
Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 2: Memory at fdff0000 (64-bit, non-prefetchable) [size=64K]
Region 4: I/O ports at ee00 [size=256]
Expansion ROM at fdfc0000 [disabled] [size=128K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1
unlimited
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Latency
L0 <64ns, L1 <1us
ClockPM- Suprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
Capabilities: [80] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
Enable+
Address: 00000000fee0100c Data: 4189
Kernel driver in use: radeon
Kernel modules: radeon
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: drm lucid
--
[KMS] Desktop freeze + radeon IB schedule errors
https://bugs.launchpad.net/bugs/561554
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