Created attachment 145046 [details] Dmesg - Full Hi, everything looks like working fine on my system but I noticed some error messages by Nouveau on dmesg. [ 1.963196] nouveau: detected PR support, will not use DSM [ 1.964517] nouveau 0000:01:00.0: NVIDIA GM107 (1171b0a2) [ 2.009352] nouveau 0000:01:00.0: bios: version 82.07.79.00.1e [ 2.115174] nouveau 0000:01:00.0: fb: 2048 MiB GDDR5 [ 2.115188] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ] [ 2.125653] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08 [ IBUS ] [ 2.786164] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB [ 2.786164] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB [ 2.786167] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid [ 2.786167] nouveau 0000:01:00.0: DRM: DCB version 4.0 [ 2.786508] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies [ 2.786711] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 1 [ 13.593658] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 21.216350] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 31.437080] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] [ 3506.842157] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ] For read error on addresses 022544 and 10ac08 two bug reports already exists (bug 100423 and bug 104835). More info Notebook model: ASUS N551JW Kernel version: 5.2.6-200.fc30.x86_64 (Fedora 30)
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
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