I just tried 2.6.35-rc4 to see, if a different bug is fixed, but noted
that this kernel will only boot with radeon.modeset=0.
If KMS is active the display turns off and the system is completely
dead, not even SysRq+B is working.
I build a new kernel with the radeon driver as a module and inserted
it by hand via ssh.
The ssh session, I was using has this output:
ariolc drm # insmod ./drm_kms_helper.ko
ariolc drm # insmod ttm/ttm.ko
ariolc drm # insmod radeon/radeon.ko
Segmentation fault
ariolc drm #
The final insmod segfaulted, the shell was displaying a new prompt,
but not new input was possible.
The system still reacted to ping and trying to create a new ssh
connection resulted in a password prompt, but after entering the
password no shell was provided.
I tried SysRq+S, SysRq+U and SysRq+B, but not visible result. After a
reboot I did not find any additional information in /var/log/messages.
The effect was like the boot time failures with a builtin radeon
driver: The display (attached to the VGA output) just turns off.
But I had a second ssh connection open, doing tail -f /var/log/messages:
Jul 11 21:30:23 ariolc kernel: [ 131.720470] [drm] radeon defaulting
to kernel modesetting.
Jul 11 21:30:23 ariolc kernel: [ 131.720477] [drm] radeon kernel
modesetting enabled.
Jul 11 21:30:23 ariolc kernel: [ 131.720623] radeon 0000:01:05.0: PCI
INT A -> GSI 18 (level, low) -> IRQ 18
Jul 11 21:30:23 ariolc kernel: [ 131.726859] [drm] initializing
kernel modesetting (RS690 0x1002:0x791E).
Jul 11 21:30:23 ariolc kernel: [ 131.728607] [drm] register mmio
base: 0xFE9F0000
Jul 11 21:30:23 ariolc kernel: [ 131.728613] [drm] register mmio
size: 65536
Jul 11 21:30:23 ariolc kernel: [ 131.729591] ATOM BIOS: ATI
Jul 11 21:30:23 ariolc kernel: [ 131.729625] radeon 0000:01:05.0:
VRAM: 32M 0xDE000000 - 0xDFFFFFFF (32M used)
Jul 11 21:30:23 ariolc kernel: [ 131.729632] radeon 0000:01:05.0:
GTT: 512M 0xBE000000 - 0xDDFFFFFF
Jul 11 21:30:23 ariolc kernel: [ 131.729675] [drm] radeon: irq initialized.
Jul 11 21:30:23 ariolc kernel: [ 131.729690] mtrr: type mismatch for
fc000000,2000000 old: write-back new: write-combining
Jul 11 21:30:23 ariolc kernel: [ 131.729696] [drm] Detected VRAM
RAM=32M, BAR=32M
Jul 11 21:30:23 ariolc kernel: [ 131.729701] [drm] RAM width 128bits DDR
Jul 11 21:30:23 ariolc kernel: [ 131.729796] [TTM] Zone kernel:
Available graphics memory: 2010998 kiB.
Jul 11 21:30:23 ariolc kernel: [ 131.729802] [TTM] Initializing pool allocator.
Jul 11 21:30:23 ariolc kernel: [ 131.729841] [drm] radeon: 32M of
VRAM memory ready
Jul 11 21:30:23 ariolc kernel: [ 131.729846] [drm] radeon: 512M of
GTT memory ready.
Jul 11 21:30:23 ariolc kernel: [ 131.729857] [drm] GART: num cpu
pages 131072, num gpu pages 131072
Jul 11 21:30:23 ariolc kernel: [ 131.736223] [drm] radeon: 1 quad
pipes, 1 z pipes initialized.
Jul 11 21:30:23 ariolc kernel: [ 131.752553] [drm] Loading
RS690/RS740 Microcode
Jul 11 21:30:23 ariolc kernel: [ 131.911461] [drm] radeon: ring at
0x00000000BE000000
Jul 11 21:30:23 ariolc kernel: [ 132.055912] [drm:r100_ring_test]
*ERROR* radeon: ring test failed (sracth(0x15E4)=0xCAFEDEAD)
Jul 11 21:30:23 ariolc kernel: [ 132.055918] [drm:r100_cp_init]
*ERROR* radeon: cp isn't working (-22).
Jul 11 21:30:23 ariolc kernel: [ 132.055925] radeon 0000:01:05.0:
failled initializing CP (-22).
Jul 11 21:30:23 ariolc kernel: [ 132.055929] radeon 0000:01:05.0:
Disabling GPU acceleration
Jul 11 21:30:23 ariolc kernel: [ 132.056174] [drm] radeon: cp finalized
Jul 11 21:30:23 ariolc kernel: [ 132.057378] [drm] Default TV standard: NTSC
Jul 11 21:30:23 ariolc kernel: [ 132.058671] [drm] Default TV standard: NTSC
Jul 11 21:30:23 ariolc kernel: [ 132.059748] [drm] Radeon Display Connectors
Jul 11 21:30:23 ariolc kernel: [ 132.059753] [drm] Connector 0:
Jul 11 21:30:23 ariolc kernel: [ 132.059756] [drm] VGA
Jul 11 21:30:23 ariolc kernel: [ 132.059763] [drm] DDC: 0x7e50
0x7e40 0x7e54 0x7e44 0x7e58 0x7e48 0x7e5c 0x7e4c
Jul 11 21:30:23 ariolc kernel: [ 132.059766] [drm] Encoders:
Jul 11 21:30:23 ariolc kernel: [ 132.059770] [drm] CRT1:
INTERNAL_KLDSCP_DAC1
Jul 11 21:30:23 ariolc kernel: [ 132.059773] [drm] Connector 1:
Jul 11 21:30:23 ariolc kernel: [ 132.059776] [drm] S-video
Jul 11 21:30:23 ariolc kernel: [ 132.059778] [drm] Encoders:
Jul 11 21:30:23 ariolc kernel: [ 132.059781] [drm] TV1:
INTERNAL_KLDSCP_DAC1
Jul 11 21:30:23 ariolc kernel: [ 132.059784] [drm] Connector 2:
Jul 11 21:30:23 ariolc kernel: [ 132.059787] [drm] HDMI-A
Jul 11 21:30:23 ariolc kernel: [ 132.059792] [drm] DDC: 0x7e40
0x7e50 0x7e44 0x7e54 0x7e48 0x7e58 0x7e4c 0x7e5c
Jul 11 21:30:23 ariolc kernel: [ 132.059795] [drm] Encoders:
Jul 11 21:30:23 ariolc kernel: [ 132.059798] [drm] DFP3: INTERNAL_LVTM1
Jul 11 21:30:23 ariolc kernel: [ 132.253484] [drm] fb mappable at 0xFC040000
Jul 11 21:30:23 ariolc kernel: [ 132.253488] [drm] vram apper at 0xFC000000
Jul 11 21:30:23 ariolc kernel: [ 132.253489] [drm] size 786432
Jul 11 21:30:23 ariolc kernel: [ 132.253491] [drm] fb depth is 8
Jul 11 21:30:23 ariolc kernel: [ 132.253492] [drm] pitch is 1024
Jul 11 21:30:23 ariolc kernel: [ 132.253880] fbcon: radeondrmfb (fb0)
is primary device
Hardware info: (lspci -vv from 2.6.33)
00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge
Subsystem: ATI Technologies Inc RS690 Host Bridge
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
00:01.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge
(Internal gfx) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fe800000-fe9fffff
Prefetchable memory behind bridge: 00000000fc000000-00000000fdffffff
Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [44] HyperTransport: MSI Mapping Enable+ Fixed+
Capabilities: [b0] Subsystem: ATI Technologies Inc RS690 PCI
to PCI Bridge (Internal gfx)
00:07.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI
Express Port 3) (
prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- S
ERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort
- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fea00000-feafffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort
- <SERR- <PERR-
BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3col
d+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
ExtTag+ 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 #4, Speed 2.5GT/s, Width x1, ASPM L0s L1,
Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train-
SlotClk+ DLActive+ BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd-
HotPlug- Surpise-
Slot # 6, PowerLimit 25.000000; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet-
CmdCplt- HPIrq- LinkChg-
Control: AttnInd Off, PwrInd Off, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt-
PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal-
PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4149
Capabilities: [b0] Subsystem: ATI Technologies Inc RS690 PCI
to PCI Bridge
Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
Capabilities: [100] Virtual Channel <?>
Kernel driver in use: pcieport
KMS was working stable on 2.6.33 and seems to work on 2.6.34 (Not
really tested, because 2.6.34 is not working for me, but I'm not sure
if that is KMS related)
Output from working KMS in 2.6.33:
[ 0.385804] [drm] Initialized drm 1.1.0 20060810
[ 0.385896] [drm] radeon defaulting to kernel modesetting.
[ 0.385955] [drm] radeon kernel modesetting enabled.
[ 0.386066] radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 0.388388] [drm] radeon: Initializing kernel modesetting.
[ 0.388534] [drm] register mmio base: 0xFE9F0000
[ 0.388593] [drm] register mmio size: 65536
[ 0.389106] ATOM BIOS: ATI
[ 0.389374] [drm] GPU reset succeed (RBBM_STATUS=0x10000140)
[ 0.389436] [drm] radeon: VRAM 32M
[ 0.389495] [drm] radeon: VRAM from 0xDE000000 to 0xDFFFFFFF
[ 0.389554] [drm] radeon: GTT 512M
[ 0.389612] [drm] radeon: GTT from 0x00000000 to 0x1FFFFFFF
[ 0.389688] radeon 0000:01:05.0: irq 25 for MSI/MSI-X
[ 0.389692] [drm] radeon: using MSI.
[ 0.389766] [drm] radeon: irq initialized.
[ 0.389828] mtrr: type mismatch for fc000000,2000000 old:
write-back new: write-combining
[ 0.389902] [drm] Detected VRAM RAM=32M, BAR=32M
[ 0.389960] [drm] RAM width 128bits DDR
[ 0.390238] [TTM] Zone kernel: Available graphics memory: 2010380 kiB.
[ 0.390313] [drm] radeon: 32M of VRAM memory ready
[ 0.390372] [drm] radeon: 512M of GTT memory ready.
[ 0.390431] [drm] GART: num cpu pages 131072, num gpu pages 131072
[ 0.393504] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[ 0.393568] [drm] radeon: cp idle (0x10000C03)
[ 0.393691] [drm] Loading RS690/RS740 Microcode
[ 0.393751] platform radeon_cp.0: firmware: using built-in firmware
radeon/RS690_cp.bin
[ 0.393964] [drm] radeon: ring at 0x0000000000000000
[ 0.394039] [drm] ring test succeeded in 1 usecs
[ 0.394180] [drm] radeon: ib pool ready.
[ 0.394249] [drm] ib test succeeded in 0 usecs
[ 0.394454] [drm] Default TV standard: NTSC
[ 0.394690] [drm] Radeon Display Connectors
[ 0.394749] [drm] Connector 0:
[ 0.394807] [drm] VGA
[ 0.394865] [drm] DDC: 0x7e50 0x7e40 0x7e54 0x7e44 0x7e58 0x7e48
0x7e5c 0x7e4c
[ 0.394938] [drm] Encoders:
[ 0.394996] [drm] CRT1: INTERNAL_KLDSCP_DAC1
[ 0.395055] [drm] Connector 1:
[ 0.395112] [drm] S-video
[ 0.395169] [drm] Encoders:
[ 0.395227] [drm] TV1: INTERNAL_KLDSCP_DAC1
[ 0.395285] [drm] Connector 2:
[ 0.395343] [drm] HDMI-A
[ 0.395401] [drm] DDC: 0x7e40 0x7e50 0x7e44 0x7e54 0x7e48 0x7e58
0x7e4c 0x7e5c
[ 0.395474] [drm] Encoders:
[ 0.395532] [drm] DFP3: INTERNAL_LVTM1
[ 0.593345] [drm] fb mappable at 0xFC040000
[ 0.593404] [drm] vram apper at 0xFC000000
[ 0.593462] [drm] size 786432
[ 0.593519] [drm] fb depth is 8
[ 0.593576] [drm] pitch is 1024
[ 0.615713] Console: switching to colour frame buffer device 128x48
[ 0.617300] fb0: radeondrmfb frame buffer device
[ 0.617319] registered panic notifier
[ 0.617337] [drm] Initialized radeon 2.0.0 20080528 for
0000:01:05.0 on minor 0
Please ask, if I should provide more information or test something.
Thanks,
Torsten
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