[Nouveau] [Bug 109397] New: PGRAPH TLB flush idle timeout fail: X hangs, ssh login possible

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109397

            Bug ID: 109397
           Summary: PGRAPH TLB flush idle timeout fail: X hangs, ssh login
                    possible
           Product: Mesa
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: martin.okrslar at posteo.de
        QA Contact: nouveau at lists.freedesktop.org

Dear nouveau developers and community,

I#m using nouveau on a MacBook Pro mid 2008, with GeForce 8600M GT und Linux
kernel 4.14.90 under NixOS.

After some 30 to 50 minutes of working, the X server always freezes and gives
scattered image. Moving the mouse is often possible, but clicking or typing are
without any effect.

Loging in with ssh is still possible. I also tried to restart the X server, but
it hangs so hard, the only pressing power off button helps.

Here are the nouveau related logs from systemd.

----during boot---

Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: NVIDIA G84 (084700a2)
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: Invalid PCI ROM header
signature: expecting 0xaa55, got 0xffff
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: bios: version
60.84.49.03.00
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: fb: 256 MiB GDDR3

[...]

Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: VRAM: 256 MiB
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: TMDS table version
2.0
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB version 4.0
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB outp 00:
01000123 00010034
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB outp 01:
02011210 00000028
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB outp 02:
02011212 00000030
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB outp 03:
01011211 0080c070
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB conn 00: 0040
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: DCB conn 01: 1120
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: unknown connector
type 20
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: failed to create
encoder 0/1/0: -19

[...]

Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: MM: using CRYPT for
buffer copies
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: DRM: allocated 1440x900
fb: 0x70000, bo ffff99eff1428000
Jan 20 07:00:07 hackbetz kernel: Console: switching to colour frame buffer
device 180x56
Jan 20 07:00:07 hackbetz kernel: nouveau 0000:01:00.0: fb0: nouveaufb frame
buffer device
Jan 20 07:00:07 hackbetz kernel: [drm] Initialized nouveau 1.3.1 20120801 for
0000:01:00.0 on minor 0
Jan 20 07:00:07 hackbetz kernel: audit: type=1130 audit(1547964002.868:7):
pid=1 uid=0 auid=4294967295 ses=4294967295
msg='unit=systemd-backlight at leds:smc::kbd_b>


--- on crash this message repeats over and over ---

Jan 20 07:46:51 hackbetz kernel: nouveau 0000:01:00.0: gr: PGRAPH TLB flush
idle timeout fail
Jan 20 07:46:51 hackbetz kernel: nouveau 0000:01:00.0: gr: PGRAPH_STATUS
00000603 [BUSY DISPATCH VFETCH CCACHE_PREGEOM]
Jan 20 07:46:51 hackbetz kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS0:
00000009 [VFETCH CCACHE]
Jan 20 07:46:51 hackbetz kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS1:
00000000 []
Jan 20 07:46:51 hackbetz kernel: nouveau 0000:01:00.0: gr: PGRAPH_VSTATUS2:
00000000 []


Any ideas?

Thanks a lot to all of you writing this software!

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