Messages in this thread | | | Date | Tue, 22 Jan 2013 11:05:37 -0700 | Subject | Re: Linux 3.8-rc4 | From | Shuah Khan <> |
| |
On Tue, Jan 22, 2013 at 9:36 AM, Deucher, Alexander <Alexander.Deucher@amd.com> wrote: >> -----Original Message----- >> From: Shuah Khan [mailto:shuahkhan@gmail.com] >> Sent: Tuesday, January 22, 2013 11:15 AM >> To: Deucher, Alexander >> Cc: Linus Torvalds; Linux Kernel Mailing List >> Subject: Re: Linux 3.8-rc4 >> >> On Sat, Jan 19, 2013 at 9:44 AM, Deucher, Alexander >> <Alexander.Deucher@amd.com> wrote: >> >> -----Original Message----- >> >> From: Shuah Khan [mailto:shuahkhan@gmail.com] >> >> Sent: Friday, January 18, 2013 7:40 PM >> >> To: Linus Torvalds; Deucher, Alexander >> >> Cc: Linux Kernel Mailing List >> >> Subject: Re: Linux 3.8-rc4 >> >> >> >> On Fri, Jan 18, 2013 at 3:37 PM, Shuah Khan <shuahkhan@gmail.com> >> wrote: >> >> > On Fri, Jan 18, 2013 at 10:51 AM, Shuah Khan <shuahkhan@gmail.com> >> >> wrote: >> >> >> >> > >> >> > ok. I bisected the DMAR faults and it points to the following commit: >> >> > >> >> > 909d9eb67f1e4e39f2ea88e96bde03d560cde3eb >> >> > >> >> > This commit as I recall, fixed the crash problem I was seeing back in >> >> > 3.8-rc1. Reverting to see if crash problem reappears. >> >> >> >> Confirming that with this commit reverted crash problem re-appeared. >> >> With this commit, DMAR faults show up. >> > >> > I'm not quite sure what's going on with your system. At this point it's >> probably best to just disable the DMA ring on these cards until we sort out >> what's going on. The attached patch disables the use of the DMA ring. Let >> me know if it fixes the issues you are seeing. >> > >> >> I applied this patch to 3.8-rc4 and didn't fix the DMAR faults. > > Are you getting continuous DMAR faults or just when while the module is being loaded? > > Alex
During module initialization, I think might be actually right after RV620 Microcode loading attempt: dmesg excerpts starting from radeoan init:
[ 22.150520] [drm] radeon defaulting to kernel modesetting. [ 22.150524] [drm] radeon kernel modesetting enabled. [ 22.150793] [drm] initializing kernel modesetting (RV620 0x1002:0x95C4 0x103C :0x30DC). [ 22.150815] [drm] register mmio base: 0x90300000 [ 22.150817] [drm] register mmio size: 65536 [ 22.150918] ATOM BIOS: HP [ 22.150941] radeon 0000:01:00.0: VRAM: 128M 0x0000000000000000 - 0x0000000007 FFFFFF (128M used) [ 22.150943] radeon 0000:01:00.0: GTT: 512M 0x0000000008000000 - 0x0000000027F FFFFF [ 22.153790] [drm] Detected VRAM RAM=128M, BAR=128M [ 22.153793] [drm] RAM width 64bits DDR [ 22.153850] [TTM] Zone kernel: Available graphics memory: 989986 kiB [ 22.153852] [TTM] Initializing pool allocator [ 22.153857] [TTM] Initializing DMA pool allocator [ 22.153884] [drm] radeon: 128M of VRAM memory ready [ 22.153885] [drm] radeon: 512M of GTT memory ready. [ 22.153902] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 22.153903] [drm] Driver supports precise vblank timestamp query. [ 22.153947] radeon 0000:01:00.0: irq 51 for MSI/MSI-X [ 22.153958] radeon 0000:01:00.0: radeon: using MSI. [ 22.153988] [drm] radeon: irq initialized. [ 22.154034] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 22.154796] [drm] probing gen 2 caps for device 8086:2a41 = 1/0
[ 22.154969] [drm] Loading RV620 Microcode
[ 22.218044] dmar: DRHD: handling fault status reg 3 [ 22.218054] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 80000000 [ 22.218054] DMAR:[fault reason 06] PTE Read access is not set [ 22.218083] dmar: DRHD: handling fault status reg 3 [ 22.218089] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 80002000 [ 22.218089] DMAR:[fault reason 06] PTE Read access is not set [ 22.218123] dmar: DRHD: handling fault status reg 3 [ 22.218128] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 80004000 [ 22.218128] DMAR:[fault reason 06] PTE Read access is not set [ 22.218155] dmar: DRHD: handling fault status reg 3 [ 22.218159] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 80006000 [ 22.218159] DMAR:[fault reason 06] PTE Read access is not set [ 22.218169] dmar: DRHD: handling fault status reg 3 [ 22.218173] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 80007000 [ 22.218173] DMAR:[fault reason 06] PTE Read access is not set [ 22.218191] dmar: DRHD: handling fault status reg 3
tons of these and then:
[ 22.236419] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). [ 22.236479] radeon 0000:01:00.0: WB enabled [ 22.236483] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000008 000c00 and cpu addr 0xffff88002f436c00 [ 22.236485] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000008 000c0c and cpu addr 0xffff88002f436c0c [ 22.270041] [drm] ring test on 0 succeeded in 1 usecs [ 22.270099] [drm] ring test on 3 succeeded in 1 usecs [ 22.272156] [drm] ib test on ring 0 succeeded in 0 usecs [ 22.272170] [drm] ib test on ring 3 succeeded in 0 usecs [ 22.272705] [drm] radeon atom DIG backlight initialized [ 22.272707] [drm] Radeon Display Connectors [ 22.272708] [drm] Connector 0: [ 22.272710] [drm] LVDS-1 [ 22.272711] [drm] Encoders: [ 22.272712] [drm] LCD1: INTERNAL_KLDSCP_LVTMA [ 22.272713] [drm] Connector 1: [ 22.272714] [drm] VGA-1 [ 22.272716] [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c [ 22.272717] [drm] Encoders: [ 22.272718] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 22.272719] [drm] Connector 2: [ 22.272720] [drm] DVI-D-1 [ 22.272721] [drm] HPD1 [ 22.272723] [drm] DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c [ 22.272724] [drm] Encoders: [ 22.272725] [drm] DFP1: INTERNAL_UNIPHY [ 22.272758] [drm] radeon: power management initialized [ 23.232093] fbcon: radeondrmfb (fb0) is primary device [ 23.496217] Console: switching to colour frame buffer device 180x56 [ 23.499083] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device [ 23.499085] radeon 0000:01:00.0: registered panic notifier [ 23.499100] [drm] Initialized radeon 2.28.0 20080528 for 0000:01:00.0 on minor 0
Attaching entire dmesg as well:
-- Shuah [unhandled content-type:application/octet-stream] | |