| Summary: | [NV117] bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] | ||||||
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| Product: | xorg | Reporter: | Giuseppe Lumia <gius-italy> | ||||
| Component: | Driver/nouveau | Assignee: | Nouveau Project <nouveau> | ||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | fixpoint.combinator | ||||
| Version: | unspecified | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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Description
Giuseppe Lumia
2019-08-13 09:59:46 UTC
I found out something new about the bug. Looks like the read on 0x619444 is called by the function gm107_gr_init_bios_2 in https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/gpu/drm/nouveau/nvkm/engine/gr/gm107.c?h=v5.2.8#n309. I got nvapeek to work on my system ( I had to disable kernel_lockdown since I was getting "PCI init failure" ) and this is the output: ./nvapeek 0x619444 00619444: badf1301 The curious thing is that if I analyze all the addresses preceding and following 0x619444 I get only a list of badf1301 and badf1100 (so a "small error" on the offset is to exclude). Unfortunately I have no clue what this address 0x619444 refers to and why the function gm107_gr_init_bios_2 was added to the source code. I also found out the commit which added this code: https://github.com/torvalds/linux/commit/0f78acc86bbfc60cdaffd4eb03e4a35b28397cbb I am having the same problem, except that my XFCE sometimes freezes. # cat /var/log/syslog | grep -i nouveau | cut -d' ' -f 7- [48132.074803] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 5.461491] nouveau: detected PR support, will not use DSM [ 5.463061] nouveau 0000:01:00.0: NVIDIA GM107 (117360a2) [ 5.582620] nouveau 0000:01:00.0: bios: version 82.07.b0.00.11 [ 5.850055] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5 [ 5.850120] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ] [ 5.890448] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ] [ 5.949021] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB [ 5.949024] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB [ 5.949030] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid [ 5.949041] nouveau 0000:01:00.0: DRM: DCB version 4.0 [ 5.949901] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies [ 5.949923] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1 nouveau-pci-0100 [ 27.158915] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 3017.006179] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] ^^^^ This is the last line before the hard restart. [ 4.702574] nouveau: detected PR support, will not use DSM [ 4.704259] nouveau 0000:01:00.0: NVIDIA GM107 (117360a2) [ 4.814736] nouveau 0000:01:00.0: bios: version 82.07.b0.00.11 [ 5.225233] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5 [ 5.225298] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ] [ 5.269825] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ] [ 5.328777] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB [ 5.328779] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB [ 5.328786] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid [ 5.328789] nouveau 0000:01:00.0: DRM: DCB version 4.0 [ 5.329569] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies [ 5.329589] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1 nouveau-pci-0100 [ 31.454736] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 1718.113435] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 1828.533646] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 1848.942938] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] Linux kernel: 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) x86_64 GNU/Linux -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/499. |
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