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. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
