[Bug 105814] New: Frequent Xorg lockups with GT710 after rad or write faults

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=105814

            Bug ID: 105814
           Summary: Frequent Xorg lockups with GT710 after rad or write
                    faults
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: zarniwhoop-XZoyATsUNX5Wk0Htik3J/w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

This is my second problem on my new machine (ryzen, GT710 (GK208B) - I needed a
vga connector), linux-4.15.12, gcc-7.3.0, glibc-2.27, mesa-17.3.7,
xorg-server-1.19.6, mouveau-1.0.15).

I am seeing frequent lockups in X (keyboard and mouse not working, but
MagicSysRQ works). Arguably this is similar to #104448, but I'm using "regular"
glibc.

There is no particular pattern to when this bug bites - the first time, I had
just built icewm, rerun startx, and was evaluating the various themes. Later, I
was installing firefox extension ublock-origin. As with the other bug I just
raised (105813) I tried using the modesetting Xorg driver instead of nouveau,
but the problem occurred again (left it compiling, came back to a frozen
xscreensaver). After that I turned off xscreensaver and it has now been up for
perhaps 2 hours, but will maybe go down again soon ;-(

From these failures I have extracted the following from my syslog, several (but
not all) show UNSUPPORTED_KIND. The 'scheduled for recovery' messages imply it
might self-correct, but it doesn't seem to.

Mar 28 18:50:05 origin kernel: [ 7715.267689] nouveau 0000:26:00.0: fifo:
FB_FLUSH_TIMEOUT
Mar 28 18:50:05 origin kernel: [ 7715.273911] nouveau 0000:26:00.0: fifo: write
fault at 0003228000 engine 1b [CE2] client 18 [GR_CE] reason 0c
[UNSUPPORTED_KIND] on channel 2 [003fbfa000 Xorg[22520]]
Mar 28 18:50:05 origin kernel: [ 7715.273921] nouveau 0000:26:00.0: fifo:
channel 2: killed
Mar 28 18:50:05 origin kernel: [ 7715.273923] nouveau 0000:26:00.0: fifo:
runlist 0: scheduled for recovery
Mar 28 18:50:05 origin kernel: [ 7715.273934] nouveau 0000:26:00.0: fifo:
engine 0: scheduled for recovery
Mar 28 18:50:05 origin kernel: [ 7715.273938] nouveau 0000:26:00.0: fifo:
engine 6: scheduled for recovery
Mar 28 18:50:05 origin kernel: [ 7715.273965] nouveau 0000:26:00.0:
Xorg[22520]: channel 2 killed!

Mar 28 19:33:30 origin kernel: [ 2215.090852] nouveau 0000:26:00.0: fifo: read
fault at 000171c000 engine 1b [CE2] client 18 [GR_CE] reason 02 [PTE] on
channel 2 [003fbfa000 Xorg[1576]]
Mar 28 19:33:30 origin kernel: [ 2215.090861] nouveau 0000:26:00.0: fifo:
channel 2: killed
Mar 28 19:33:30 origin kernel: [ 2215.090863] nouveau 0000:26:00.0: fifo:
runlist 0: scheduled for recovery
Mar 28 19:33:30 origin kernel: [ 2215.090873] nouveau 0000:26:00.0: fifo:
engine 0: scheduled for recovery
Mar 28 19:33:30 origin kernel: [ 2215.090877] nouveau 0000:26:00.0: fifo:
engine 6: scheduled for recovery
Mar 28 19:33:30 origin kernel: [ 2215.090891] nouveau 0000:26:00.0: Xorg[1576]:
channel 2 killed!

Mar 28 22:27:26 origin kernel: [ 3793.782622] nouveau 0000:26:00.0: fifo:
CHSW_ERROR 00000004
Mar 28 22:27:27 origin kernel: [ 3794.949062] nouveau 0000:26:00.0: fifo:
CHSW_ERROR 00000002
Mar 28 22:27:27 origin kernel: [ 3794.949066] nouveau 0000:26:00.0: fifo:
FB_FLUSH_TIMEOUT
Mar 28 22:27:27 origin kernel: [ 3795.465905] nouveau 0000:26:00.0: fifo:
CHSW_ERROR 00000002
Mar 28 22:27:27 origin kernel: [ 3795.465909] nouveau 0000:26:00.0: fifo:
FB_FLUSH_TIMEOUT
Mar 28 22:27:27 origin kernel: [ 3795.532524] nouveau 0000:26:00.0: fifo:
FB_FLUSH_TIMEOUT
Mar 28 22:27:27 origin kernel: [ 3795.537738] nouveau 0000:26:00.0: fifo: read
fault at 0001f08000 engine 1b [CE2] client 18 [GR_CE] reason 0c
[UNSUPPORTED_KIND] on channel 2 [003fbfa000 Xorg[1290]]
Mar 28 22:27:27 origin kernel: [ 3795.537745] nouveau 0000:26:00.0: fifo:
channel 2: killed
Mar 28 22:27:27 origin kernel: [ 3795.537747] nouveau 0000:26:00.0: fifo:
runlist 0: scheduled for recovery
Mar 28 22:27:27 origin kernel: [ 3795.537757] nouveau 0000:26:00.0: fifo:
engine 0: scheduled for recovery
Mar 28 22:27:27 origin kernel: [ 3795.537761] nouveau 0000:26:00.0: fifo:
engine 6: scheduled for recovery

Mar 29 21:19:49 origin kernel: [13387.804276] nouveau 0000:26:00.0: fifo: read
fault at 0004740000 engine 1b [CE2] client 18 [GR_CE] reason 0c
[UNSUPPORTED_KIND] on channel 2 [003fbfa000 Xorg[1343]]
Mar 29 21:19:49 origin kernel: [13387.804286] nouveau 0000:26:00.0: fifo:
channel 2: killed
Mar 29 21:19:49 origin kernel: [13387.804289] nouveau 0000:26:00.0: fifo:
runlist 0: scheduled for recovery
Mar 29 21:19:49 origin kernel: [13387.804299] nouveau 0000:26:00.0: fifo:
engine 0: scheduled for recovery
Mar 29 21:19:49 origin kernel: [13387.804303] nouveau 0000:26:00.0: fifo:
engine 6: scheduled for recovery
Mar 29 21:19:49 origin kernel: [13387.804308] nouveau 0000:26:00.0: Xorg[1343]:
channel 2 killed!

(that last one was using modesetting, the others were using the Xorg nouveau
driver).

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