Hi,
There's nouveau crash during boot with 3.9-rc1 on iMac G5 (nVidia GeForce FX 5200 Ultra). This happens also with current mainline kernel HEAD (0aefda3e8188ad71168bd32152d41b3d72f04087).
git bisect tells the first bad commit is 1d7c71a3e2f77336df536855b0efd2dc5bdeb41b (drm/nouveau/disp: port vblank handling to event interface).
The crash is (manually copied from screen):
[...]
Unable to handle kernel paging request for data at address 0x100000000
call trace: nouveau_event_trigger nv04_disp_intr nouveau_mc_intr nouveau_irq_handler
[...]
I also tried to capture it with netconsole, and got this much:
[ 23.114208] nouveau [ DEVICE][0000:f0:10.0] BOOT0 : 0x034900b1 [ 23.114257] nouveau [ DEVICE][0000:f0:10.0] Chipset: NV34 (NV34) [ 23.114266] nouveau [ DEVICE][0000:f0:10.0] Family : NV30 [ 23.114672] nouveau [ VBIOS][0000:f0:10.0] checking OpenFirmware for image... [ 23.114712] nouveau [ VBIOS][0000:f0:10.0] ... checksum invalid [ 23.114720] nouveau [ VBIOS][0000:f0:10.0] checking PRAMIN for image... [ 23.114754] nouveau [ VBIOS][0000:f0:10.0] ... signature not found [ 23.114761] nouveau [ VBIOS][0000:f0:10.0] checking PROM for image... [ 23.114845] nouveau [ VBIOS][0000:f0:10.0] ... signature not found [ 23.114853] nouveau [ VBIOS][0000:f0:10.0] checking ACPI for image... [ 23.114862] nouveau [ VBIOS][0000:f0:10.0] ... signature not found [ 23.114881] nouveau [ VBIOS][0000:f0:10.0] checking PCIROM for image... [ 23.114930] nouveau 0000:f0:10.0: Invalid ROM contents [ 23.114946] nouveau [ VBIOS][0000:f0:10.0] ... signature not found [ 23.114976] nouveau [ VBIOS][0000:f0:10.0] using image from OpenFirmware [ 23.114987] nouveau [ VBIOS][0000:f0:10.0] BMP version 5.26 [ 23.115035] nouveau [ VBIOS][0000:f0:10.0] version 04.34.20.18.00 [ 23.134608] nouveau W[ VBIOS][0000:f0:10.0] unknown i2c type 3 [ 23.134637] nouveau W[ VBIOS][0000:f0:10.0] unknown i2c type 3 [ 23.136488] nouveau W[ PTIMER][0000:f0:10.0] unknown input clock freq [ 23.136536] nouveau [ PFB][0000:f0:10.0] RAM type: DDR1 [ 23.136544] nouveau [ PFB][0000:f0:10.0] RAM size: 32 MiB [ 23.136552] nouveau [ PFB][0000:f0:10.0] ZCOMP: 0 tags [ 23.150773] [TTM] Zone kernel: Available graphics memory: 744988 kiB [ 23.150800] [TTM] Initializing pool allocator [ 23.150882] nouveau [ DRM] VRAM: 31 MiB [ 23.150890] nouveau [ DRM] GART: 128 MiB [ 23.150927] nouveau [ DRM] BMP version 5.38 [ 23.150937] nouveau [ DRM] DCB version 2.2 [ 23.150971] nouveau [ DRM] DCB outp 00: 01000122 00000004 [ 23.150981] nouveau [ DRM] DCB outp 01: 02010200 11b088b8 [ 23.150988] nouveau [ DRM] DCB outp 02: 02010201 11b00703 [ 23.151040] nouveau [ DRM] Loading NV17 power sequencing microcode [ 23.170180] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 23.170212] [drm] No driver support for vblank timestamp query. [ 23.170277] nouveau E[ DRM] Pixel clock comparison table not found [ 23.171010] nouveau [ DRM] 0 available performance level(s) [ 23.171028] nouveau [ DRM] c: core 241MHz memory 475MHz [ 23.177822] nouveau [ DRM] MM: using M2MF for buffer copies [ 23.177917] nouveau [ DRM] Setting dpms mode 3 on TV encoder (output 2) [ 23.285783] nouveau [ DRM] allocated 1680x1050 fb: 0x9000, bo c000000056d52c00 [ 23.306569] nouveau E[ DRM] Pixel clock comparison table not found [ 23.317565] Console: switching to colour frame buffer device 210x65 [ 23.321370] nouveau 0000:f0:10.0: fb0: nouveaufb frame buffer device [ 23.321386] nouveau 0000:f0:10.0: registered panic notifier [ 23.321444] [drm] Initialized nouveau 1.1.0 20120801 for 0000:f0:10.0 on minor 0 [ 23.329860] Unable to handle kernel paging request for data at address 0x100000000 [ 23.329918] Faulting instruction address: 0xd000000000801394 [ 23.329939] Oops: Kernel access of bad area, sig: 11 [#1] [ 23.329953] PREEMPT PowerMac [ 23.329982] Modules linked in: nouveau ttm drm_kms_helper [ 23.330035] NIP: d000000000801394 LR: d0000000008013a8 CTR: c0000000000178e0 [ 23.330052] REGS: c00000000fff78b0 TRAP: 0300 Not tainted (3.9.0-rc1-imac-00277-g0aefda3-dirty) [ 23.330065] MSR: 9000000000009032 <SF,HV,EE,ME,IR,DR,RI> CR: 28000084 XER: 00000000 [ 23.330174] SOFTE: 0 [ 23.330187] DAR: 0000000100000000, DSISR: 40000000 [ 23.330202] TASK = c000000000805aa0[0] 'swapper' THREAD: c000000000894000 GPR00: d0000000008013a8 c00000000fff7b30 d0000000009272c0 c000000056de5458 GPR04: 0000000000000000 0000000000000000 0000000000000002 0000000000000000 GPR08: [ 24.321933] Kernel panic - not syncing: Fatal exception in interrupt [ 24.321951] drm_kms_helper: panic occurred, switching back to text console [ 24.322013] ------------[ cut here ]------------ [ 24.322029] WARNING: at drivers/gpu/drm/drm_crtc.c:82 [ 24.322041] Modules linked in: nouveau ttm drm_kms_helper [ 24.322087] NIP: c0000000002e8640 LR: d0000000000a4024 CTR: c0000000002e8610 [ 24.322103] REGS: c00000000fff7130 TRAP: 0700 Tainted: G D (3.9.0-rc1-imac-00277-g0aefda3-dirty) [ 24.322116] MSR: 9000000000021032 <SF,HV,ME,IR,DR,RI> CR: 28002048 XER: 00000000 [ 24.322201] SOFTE: 0 [ 24.322216] TASK = c000000000805aa0[0] 'swapper' THREAD: c000000000894000 GPR00: d0000000000a40f8 c00000000fff73b0 c00000000089ac08 c000000056f09000 GPR04: 0000000000000001 0000000000000001 0000000000000009 0000000000000000 GPR08:
A.