On 2/23/2015 9:03 AM, Julian Margetson wrote: > On 2/18/2015 10:56 PM, Michael Ellerman wrote: >> On Wed, 2015-02-18 at 21:36 -0400, Julian Margetson wrote: >>> On 2/18/2015 8:13 PM, Michael Ellerman wrote: >>> >>>> On Wed, 2015-02-18 at 15:45 -0400, Julian Margetson wrote: >>>>> On 2/15/2015 8:18 PM, Michael Ellerman wrote: >>>>> >>>>>> On Sun, 2015-02-15 at 08:16 -0400, Julian Margetson wrote: >>>>>>> Hi >>>>>>> >>>>>>> I am unable to get any kernel beyond the 3.16 branch working on an >>>>>>> Acube Sam460ex >>>>>>> AMCC 460ex based motherboard. Kernel up 3.16.7-ckt6 working. >>>>>> Does reverting b0345bbc6d09 change anything? >>>>>> >>>>>>> [ 6.364350] snd_hda_intel 0001:81:00.1: enabling device (0000 -> >>>>>>> 0002) >>>>>>> [ 6.453794] snd_hda_intel 0001:81:00.1: ppc4xx_setup_msi_irqs: fail >>>>>>> mapping irq >>>>>>> [ 6.487530] Unable to handle kernel paging request for data at >>>>>>> address 0x0fa06c7c >>>>>>> [ 6.495055] Faulting instruction address: 0xc032202c >>>>>>> [ 6.500033] Vector: 300 (Data Access) at [efa31cf0] >>>>>>> [ 6.504922] pc: c032202c: __reg_op+0xe8/0x100 >>>>>>> [ 6.509697] lr: c0014f88: msi_bitmap_free_hwirqs+0x50/0x94 >>>>>>> [ 6.515600] sp: efa31da0 >>>>>>> [ 6.518491] msr: 21000 >>>>>>> [ 6.521112] dar: fa06c7c >>>>>>> [ 6.523915] dsisr: 0 >>>>>>> [ 6.526190] current = 0xef8bab00 >>>>>>> [ 6.529603] pid = 115, comm = kworker/0:1 >>>>>>> [ 6.534163] enter ? for help >>>>>>> [ 6.537054] [link register ] c0014f88 >>>>>>> msi_bitmap_free_hwirqs+0x50/0x94 >>>>>>> [ 6.543811] [efa31da0] c0014f78 msi_bitmap_free_hwirqs+0x40/0x94 >>>>>>> (unreliable) >>>>>>> [ 6.551001] [efa31dc0] c001aee8 ppc4xx_setup_msi_irqs+0xac/0xf4 >>>>>>> [ 6.556973] [efa31e00] c03503a4 pci_enable_msi_range+0x1e0/0x280 >>>>>>> [ 6.563032] [efa31e40] f92c2f74 azx_probe_work+0xe0/0x57c >>>>>>> [snd_hda_intel] >>>>>>> [ 6.569906] [efa31e80] c0036344 process_one_work+0x1e8/0x2f0 >>>>>>> [ 6.575627] [efa31eb0] c003677c worker_thread+0x2f4/0x438 >>>>>>> [ 6.581079] [efa31ef0] c003a3e4 kthread+0xc8/0xcc >>>>>>> [ 6.585844] [efa31f40] c000aec4 ret_from_kernel_thread+0x5c/0x64 >>>>>>> [ 6.591910] mon> <no input ...> >>>>> Managed to do a third git bisect with the following results . >>>> Great work. >>>> >>>>> git bisect bad >>>>> 9279d3286e10736766edcaf815ae10e00856e448 is the first bad commit >>>>> commit 9279d3286e10736766edcaf815ae10e00856e448 >>>>> Author: Rasmus Villemoes<linux at rasmusvillemoes.dk> >>>>> Date: Wed Aug 6 16:10:16 2014 -0700 >>>>> >>>>> lib: bitmap: change parameter of bitmap_*_region to unsigned >>>> So the bug is in the 4xx MSI code, and has always been there, in fact I >>>> don't >>>> see how that code has *ever* worked. The commit you bisected to just >>>> caused the >>>> existing bug to cause an oops. >>>> >>>> Can you try this? >>>> >>>> diff --git a/arch/powerpc/sysdev/ppc4xx_msi.c >>>> b/arch/powerpc/sysdev/ppc4xx_msi.c >>>> index 6e2e6aa378bb..effb5b878a78 100644 >>>> --- a/arch/powerpc/sysdev/ppc4xx_msi.c >>>> +++ b/arch/powerpc/sysdev/ppc4xx_msi.c >>>> @@ -95,11 +95,9 @@ static int ppc4xx_setup_msi_irqs(struct pci_dev *dev, >>>> int nvec, int type) >>>> >>>> list_for_each_entry(entry, &dev->msi_list, list) { >>>> int_no = msi_bitmap_alloc_hwirqs(&msi_data->bitmap, 1); >>>> - if (int_no >= 0) >>>> - break; >>>> if (int_no < 0) { >>>> - pr_debug("%s: fail allocating msi interrupt\n", >>>> - __func__); >>>> + pr_warn("%s: fail allocating msi interrupt\n", >>>> __func__); >>>> + return -ENOSPC; >>>> } >>>> virq = irq_of_parse_and_map(msi_data->msi_dev, int_no); >>>> if (virq == NO_IRQ) { >>>> >>> Thanks. >>> This works with 3.17-rc1. Will try with the 3.18 Branch . >> OK great. >> >>> Any ideas why drm is not working ? (It never worked) . >> No sorry. You might have more luck if you post a new thread to the dri list. >> >>> [ 5.809802] Linux agpgart interface v0.103 >>> [ 6.137893] [drm] Initialized drm 1.1.0 20060810 >>> [ 6.439872] snd_hda_intel 0001:81:00.1: enabling device (0000 -> 0002) >>> [ 6.508544] ppc4xx_setup_msi_irqs: fail allocating msi interrupt >> I'm curious why it's failing to allocate MSIs. Possibly it's just run out. >> >> Can you post the output of 'cat /proc/interrupts'? >> >> cheers >> >> >> > > > cat /proc/interrupts > CPU0 > 18: 0 UIC 11 Edge L2C > 19: 0 UIC 12 Level snd_ice1724 > 20: 1 UIC 16 Level > 21: 306 UIC 17 Level snd_hda_intel > 22: 12212 UIC 0 Level 0002:00:04.0 > 25: 619 UIC 6 Level MAL TX EOB > 26: 937 UIC 7 Level MAL RX EOB > 27: 0 UIC 3 Level MAL SERR > 28: 0 UIC 4 Level MAL TX DE > 31: 0 UIC 5 Level MAL RX DE > 32: 6607 UIC 29 Level ehci_hcd:usb1 > 33: 1 UIC 30 Level ohci_hcd:usb2 > 38: 19 UIC 2 Level IBM IIC > 39: 0 UIC 3 Level IBM IIC > 40: 0 UIC 16 Level EMAC > 44: 0 UIC 0 Edge aerdrv > 45: 0 UIC 2 Edge aerdrv > LOC: 117318 Local timer interrupts for timer event device > LOC: 53 Local timer interrupts for others > SPU: 0 Spurious interrupts > PMI: 0 Performance monitoring interrupts > MCE: 0 Machine check exceptions > > More issues with Kernel 4.0.0-rc1 > > [ 33.535692] Unable to handle kernel paging request for data at address > 0x00000008 > [ 33.566786] Faulting instruction address: 0xc049db84 > [ 33.574188] Vector: 300 (Data Access) at [eeb13c20] > [ 33.579086] pc: c049db84: radeon_audio_enable+0x4/0x18 > [ 33.584630] lr: c049e2f4: radeon_audio_detect+0x288/0x290 > [ 33.590429] sp: eeb13cd0 > [ 33.593310] msr: 29000 > [ 33.595931] dar: 8 > [ 33.598207] dsisr: 0 > [ 33.600480] current = 0xeea93ac0 > [ 33.603885] pid = 2311, comm = Xorg > [ 33.607922] enter ? for help > [ 33.610806] [link register ] c049e2f4 radeon_audio_detect+0x288/0x290 > [ 33.617469] [eeb13cd0] c049e254 radeon_audio_detect+0x1e8/0x290 > (unreliable) > [ 33.624571] [eeb13d00] c03dfe7c radeon_dvi_detect+0x388/0x3ac > [ 33.630369] [eeb13d30] c038b9d4 > drm_helper_probe_single_connector_modes_merge_bits+0xf4/0x434 > [ 33.638954] [eeb13d70] c03a7670 drm_mode_getconnector+0xf4/0x334 > [ 33.645022] [eeb13e10] c039a8c0 drm_ioctl+0x348/0x464 > [ 33.650135] [eeb13ed0] c00d0ca0 do_vfs_ioctl+0x52c/0x6e8 > [ 33.655507] [eeb13f20] c00d0e9c SyS_ioctl+0x40/0x68 > [ 33.660438] [eeb13f40] c000ab04 ret_from_syscall+0x0/0x3c > [ 33.665896] --- Exception: c01 (System Call) at 6fb1b8dc > [ 33.671253] SP (bfa56d20) is in userspace > [ 33.675263] mon> <no input ...> > [ 35.703835] Oops: Kernel access of bad area, sig: 11 [#1] > [ 35.709554] PREEMPT Canyonlands > [ 35.712876] Modules linked in: cfg80211 snd_ice1724 snd_hda_codec_hdmi > snd_ak4113 snd_pt2258 snd_ak4114 snd_i2c snd_ice17xx_ak4xxx snd_ak4xxx_adda > snd_ac97_codec snd_hda_intel ac97_bus snd_hda_controller snd_rawmidi > snd_hda_codec snd_seq_device snd_pcm snd_timer snd > [ 35.738047] CPU: 0 PID: 2311 Comm: Xorg Not tainted 4.0.0-rc1-Sam460ex #1 > [ 35.745189] task: eea93ac0 ti: eeb12000 task.ti: eeb12000 > [ 35.750872] NIP: c049db84 LR: c049e2f4 CTR: 00000000 > [ 35.756098] REGS: eeb13c20 TRAP: 0300 Not tainted (4.0.0-rc1-Sam460ex) > [ 35.763241] MSR: 00029000 <CE,EE,ME> CR: 24004422 XER: 20000000 > [ 35.769778] DEAR: 00000008 ESR: 00000000 > GPR00: c049e254 eeb13cd0 eea93ac0 eaa84000 00000000 0000000f ee0532c0 000190d6 > GPR08: eab6da00 00000000 00000000 eeb13cb0 28004422 b7a11ff4 b7a87a98 b7a87988 > GPR16: 00000000 ffffffff 00000000 eeb13e18 eaa08194 eaa08178 00000001 00004000 > GPR24: 00004000 c071cd28 fffffff2 00000000 eab6c000 eaa84000 eab6da00 eab80400 > [ 35.804302] NIP [c049db84] radeon_audio_enable+0x4/0x18 > [ 35.809799] LR [c049e2f4] radeon_audio_detect+0x288/0x290 > [ 35.815480] Call Trace: > [ 35.818053] [eeb13cd0] [c049e254] radeon_audio_detect+0x1e8/0x290 > (unreliable) > [ 35.825694] [eeb13d00] [c03dfe7c] radeon_dvi_detect+0x388/0x3ac > [ 35.831956] [eeb13d30] [c038b9d4] > drm_helper_probe_single_connector_modes_merge_bits+0xf4/0x434 > [ 35.841137] [eeb13d70] [c03a7670] drm_mode_getconnector+0xf4/0x334 > [ 35.847663] [eeb13e10] [c039a8c0] drm_ioctl+0x348/0x464 > [ 35.853183] [eeb13ed0] [c00d0ca0] do_vfs_ioctl+0x52c/0x6e8 > [ 35.858974] [eeb13f20] [c00d0e9c] SyS_ioctl+0x40/0x68 > [ 35.864307] [eeb13f40] [c000ab04] ret_from_syscall+0x0/0x3c > [ 35.870196] --- interrupt: c01 at 0x6fb1b8dc > [ 35.870196] LR = 0x6fb1b800 > [ 35.877971] Instruction dump: > [ 35.881106] 8129012c 806a0018 2f890000 419e0018 81290004 2f890000 419e000c > 7d2903a6 > [ 35.889403] 4e800420 38600000 4e800020 81231c70 <81290008> 2f890000 > 4d9e0020 7d2903a6 > [ 36.042121] ---[ end trace 3e83f5fa0d05c678 ]--- > [ 36.046739] > With Kernel 3.19
[ 2.454668] Linux agpgart interface v0.103 [ 2.458979] [drm] Initialized drm 1.1.0 20060810 [ 2.463814] [drm] radeon kernel modesetting enabled. [ 2.469870] [drm] initializing kernel modesetting (TURKS 0x1002:0x6758 0x1682:0x318B). [ 2.478007] [drm] register mmio base: 0xe90000000 [ 2.482774] [drm] register mmio size: 131072 [ 2.665432] ATOM BIOS: TURKS [ 2.668602] radeon 0001:81:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M used) [ 2.677521] radeon 0001:81:00.0: GTT: 1024M 0x0000000040000000 - 0x000000007FFFFFFF [ 2.685201] [drm] Detected VRAM RAM=1024M, BAR=256M [ 2.690094] [drm] RAM width 128bits DDR [ 2.694109] [TTM] Zone kernel: Available graphics memory: 379192 kiB [ 2.700596] [TTM] Zone highmem: Available graphics memory: 1034552 kiB [ 2.707147] [TTM] Initializing pool allocator [ 2.711540] [TTM] Initializing DMA pool allocator [ 2.716359] [drm] radeon: 1024M of VRAM memory ready [ 2.721355] [drm] radeon: 1024M of GTT memory ready. [ 2.726395] [drm] Loading TURKS Microcode [ 2.730457] [drm] Internal thermal controller with fan control [ 2.741697] [drm] radeon: dpm initialized [ 2.745907] [drm] GART: num cpu pages 262144, num gpu pages 262144 [ 2.787690] [drm] PCIE GART of 1024M enabled (table at 0x0000000000274000). [ 2.794953] radeon 0001:81:00.0: WB enabled [ 2.799182] radeon 0001:81:00.0: fence driver on ring 0 use gpu addr 0x0000000040000c00 and cpu addr 0xffc01c00 [ 2.809300] radeon 0001:81:00.0: fence driver on ring 3 use gpu addr 0x0000000040000c0c and cpu addr 0xffc01c0c [ 2.839260] radeon 0001:81:00.0: fence driver on ring 5 use gpu addr 0x0000000000072118 and cpu addr 0xf9032118 [ 2.849411] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 2.856067] [drm] Driver supports precise vblank timestamp query. [ 2.862183] radeon 0001:81:00.0: radeon: MSI limited to 32-bit [ 2.868058] ppc4xx_setup_msi_irqs: fail allocating msi interrupt [ 2.874153] [drm] radeon: irq initialized. [ 3.103973] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD) [ 3.112806] radeon 0001:81:00.0: disabling GPU acceleration [ 3.128627] [drm] Radeon Display Connectors [ 3.133369] [drm] Connector 0: [ 3.136481] [drm] DP-1 [ 3.139089] [drm] HPD1 [ 3.141665] [drm] DDC: 0x6470 0x6470 0x6474 0x6474 0x6478 0x6478 0x647c 0x647c [ 3.149146] [drm] Encoders: [ 3.152157] [drm] DFP1: INTERNAL_UNIPHY2 [ 3.156473] [drm] Connector 1: [ 3.159570] [drm] HDMI-A-1 [ 3.162469] [drm] HPD5 [ 3.165019] [drm] DDC: 0x6480 0x6480 0x6484 0x6484 0x6488 0x6488 0x648c 0x648c [ 3.172436] [drm] Encoders: [ 3.175415] [drm] DFP2: INTERNAL_UNIPHY2 [ 3.179703] [drm] Connector 2: [ 3.182766] [drm] DVI-I-1 [ 3.185570] [drm] HPD4 [ 3.188117] [drm] DDC: 0x6450 0x6450 0x6454 0x6454 0x6458 0x6458 0x645c 0x645c [ 3.195535] [drm] Encoders: [ 3.198513] [drm] DFP3: INTERNAL_UNIPHY [ 3.202706] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 3.352245] [drm] fb mappable at 0x80475000 [ 3.356458] [drm] vram apper at 0x80000000 [ 3.360570] [drm] size 8294400 [ 3.363634] [drm] fb depth is 24 [ 3.366873] [drm] pitch is 7680 [ 3.575080] Console: switching to colour frame buffer device 240x67 [ 3.649278] radeon 0001:81:00.0: fb0: radeondrmfb frame buffer device [ 3.656071] radeon 0001:81:00.0: registered panic notifier [ 3.666472] [drm] Initialized radeon 2.40.0 20080528 for 0001:81:00.0 on minor 0 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150223/254a38bd/attachment-0001.html>