> On Mon, Jul 12, 2010 at 5:23 PM, Alex Deucher <alexdeucher@gmail.com> wrote:
>> On Sun, Jul 11, 2010 at 3:56 PM, Torsten Kaiser
>> <just.for.lkml@googlemail.com> 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@gmail.com>
> 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@yahoo.fr
> Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
> Signed-off-by: Dave Airlie <airlied@redhat.com>
>
> :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.
