On Fri, Mar 21, 2014 at 9:37 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > On Fri, Mar 21, 2014 at 9:49 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: >> On Fri, Mar 21, 2014 at 7:41 AM, Alex Deucher <alexdeucher@xxxxxxxxx> wrote: >>> On Thu, Mar 20, 2014 at 10:17 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: >>>> My system works on a 3.13 Fedora kernel. It does not work on a >>>> more-or-less identically configured 3.14-rc7+ kernel. The symptom is >>>> that the Plymouth password prompt flashes and them the screen goes >>>> blank. Hitting escape brings back the text console, and all is well >>>> until X tries to start. Then I get a blank screen. killall -9 Xorg >>>> from ssh causes these errors to be logged: >>>> >>>> >>>> [ 226.239747] [drm:atom_op_jump] *ERROR* atombios stuck in loop for >>>> more than 5secs aborting >>>> [ 226.239751] [drm:atom_execute_table_locked] *ERROR* atombios stuck >>>> executing CD34 (len 55, WS 0, PS 0) @ 0xCD57 >>>> [ 231.241492] [drm:atom_op_jump] *ERROR* atombios stuck in loop for >>>> more than 5secs aborting >>>> [ 231.241496] [drm:atom_execute_table_locked] *ERROR* atombios stuck >>>> executing CD6C (len 62, WS 0, PS 0) @ 0xCD88 >>>> [ 236.243111] [drm:atom_op_jump] *ERROR* atombios stuck in loop for >>>> more than 5secs aborting >>>> [ 236.243115] [drm:atom_execute_table_locked] *ERROR* atombios stuck >>>> executing CD6C (len 62, WS 0, PS 0) @ 0xCD88 >>>> [ 241.244625] [drm:atom_op_jump] *ERROR* atombios stuck in loop for >>>> more than 5secs aborting >>>> [ 241.244628] [drm:atom_execute_table_locked] *ERROR* atombios stuck >>>> executing CD6C (len 62, WS 0, PS 0) @ 0xCD88 >>>> >>>> >>>> lspci -vvvxxxnn on 3.14-rc7+ says: >>>> >>>> 09:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. >>>> [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] [1002:6779] >>>> (rev ff) (prog-if ff) >>>> !!! Unknown header type 7f >>>> Kernel driver in use: radeon >>>> 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> >>>> 09:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] >>>> Caicos HDMI Audio [Radeon HD 6400 Series] [1002:aa98] (rev ff) >>>> (prog-if ff) >>>> !!! Unknown header type 7f >>>> Kernel driver in use: snd_hda_intel >>>> 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> 30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >>>> >>>> (oops!) >>>> >>>> On 3.13, it says: >>>> >>>> 09:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. >>>> [AMD/ATI] Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] [1002:6779] >>>> (prog-if 00 [VGA controller]) >>>> Subsystem: PC Partner Limited / Sapphire Technology Radeon HD >>>> 6450 1 GB DDR3 [174b:e164] >>>> 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: 64 bytes >>>> Interrupt: pin A routed to IRQ 92 >>>> Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M] >>>> Region 2: Memory at f4a20000 (64-bit, non-prefetchable) [size=128K] >>>> Region 4: I/O ports at c000 [size=256] >>>> Expansion ROM at f4a00000 [disabled] [size=128K] >>>> Capabilities: <access denied> >>>> Kernel driver in use: radeon >>>> 00: 02 10 79 67 07 04 10 00 00 00 00 03 10 00 80 00 >>>> 10: 0c 00 00 e0 00 00 00 00 04 00 a2 f4 00 00 00 00 >>>> 20: 01 c0 00 00 00 00 00 00 00 00 00 00 4b 17 64 e1 >>>> 30: 00 00 a0 f4 50 00 00 00 00 00 00 00 0a 01 00 00 >>>> >>>> 09:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] >>>> Caicos HDMI Audio [Radeon HD 6400 Series] [1002:aa98] >>>> Subsystem: PC Partner Limited / Sapphire Technology Radeon HD >>>> 6450 1GB DDR3 [174b:aa98] >>>> 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: 64 bytes >>>> Interrupt: pin B routed to IRQ 96 >>>> Region 0: Memory at f4a40000 (64-bit, non-prefetchable) [size=16K] >>>> Capabilities: <access denied> >>>> Kernel driver in use: snd_hda_intel >>>> 00: 02 10 98 aa 06 04 10 00 00 00 03 04 10 00 80 00 >>>> 10: 04 00 a4 f4 00 00 00 00 00 00 00 00 00 00 00 00 >>>> 20: 00 00 00 00 00 00 00 00 00 00 00 00 4b 17 98 aa >>>> 30: 00 00 00 00 50 00 00 00 00 00 00 00 05 02 00 00 >>>> >>>> Logs attached. > > Hi Andy, > > I'm really sorry that you tripped over this, but thanks a lot for the > report. Is there any chance the box is currently running v3.13, and > you could collect the dmesg log from it? I don't see anything unusual > from a PCI perspective in the v3.14-rc7 dmesg; all the PCI device > resources look fine, and we didn't reassign anything. It seems like > the 0000:09:00.x devices just stopped responding for some reason, and > the PCI core shouldn't really be involved after the radeon driver > claims and enables those devices. But it's possible I'd get a clue by > comparing the v3.13 and v3.14-rc7 dmesg logs. Attached. I also clearly screwed something up about my 3.14 config -- I meant for it to match the Fedora config, but it doesn't. At least NR_CPUs is too low. That shoudn't break radeon, but maybe something odd happens. 3.14 also complains that it can't find an AGP bridge. 3.13 does not complain about that. --Andy
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