On Mon, Jul 12, 2010 at 5:23 PM, Alex Deucher <alexdeucher@xxxxxxxxx> wrote:
> On Sun, Jul 11, 2010 at 3:56 PM, Torsten Kaiser
> <just.for.lkml@xxxxxxxxxxxxxx> wrote:
>> 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.
>
> Can you bisect to see what commit broke it?
>
> Alex
Its you fault. ;-P
0888e883ea5ff8fac27e813256d6c1eaede5a234 is the first bad commit
commit 0888e883ea5ff8fac27e813256d6c1eaede5a234
Author: Alex Deucher <alexdeucher@xxxxxxxxx>
Date: Sat Jun 12 11:50:13 2010 -0400
drm/radeon/kms: fix bandwidth calculation when sideport is present
Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529
Reported-by: steckdenis@xxxxxxxx
Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
:040000 040000 2ff9114469e4569e1bebd659c9632c5b59bfc238
b0eb9a29c698da1eeb8289ba1180b8135a94ecd7 M drivers
My system does not have any sideport memory.
The other revisions before this did boot into the correct KMS mode,
but I did not test X, because I'm using that system as a remote
desktop server and only sometimes the fb text console to debug
something that went wrong.
Torsten
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