On Sat, Mar 22, 2014 at 9:18 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: > 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. CONFIG_GART_IOMMU is not defined for the 3.13.6-200.rc20.x86_64 kernel, but apparently it is for your v3.14-rc7 kernel. That explains the "No AGP bridge found" difference. I'm afraid I still can't shed any light on the problem with the radeon device. 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
