[Bug 109556] New: [NV50/GT200] fifo: DMA_PUSHER ... (err: INVALID_CMD) push 00400040 - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 109556] New: [NV50/GT200] fifo: DMA_PUSHER ... (err: INVALID_CMD) push 00400040
Date: Tue, 05 Feb 2019 10:32:38 +0000	[thread overview]
Message-ID: <bug-109556-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=109556

            Bug ID: 109556
           Summary: [NV50/GT200] fifo: DMA_PUSHER ... (err: INVALID_CMD)
                    push 00400040
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: bastian.beischer-vA1bhqPz9FBZXbeN9DUtxg@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 143301
  --> https://bugs.freedesktop.org/attachment.cgi?id=143301&action=edit
dmesg log

I'm using Arch Linux with Linux 4.20.6, X11 and the modesetting driver together
with the KDE plasma desktop (5.14.5). After using the desktop for a while (in
particular, after causing some graphics load) visual artifacts appear and
plasma-desktop often hangs up. Sometimes the hanging process can be restarted,
other times X is completely frozen (but can still be ssh'ed into).

The dmesg log shows these lines, although only the fifo DMA_PUSHER lines seem
to consistently appear every time the problem is triggered:

[  227.576711] nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 6 [Xorg[751]] get
00000eb764 put 00000ec8ec ib_get 00000167 ib_put 0000016a state 80006eac (err:
INVALID_CMD) push 00400040
[  227.630897] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630904] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 1348 data 00046da0
[  227.630916] nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 6 [Xorg[751]] get
00000fcb8c put 0000102f84 ib_get 00000178 ib_put 0000017c state 80007354 (err:
INVALID_CMD) push 00400040
[  227.630926] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630929] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 134c data 00000000
[  227.630938] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630941] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 1350 data 000479d0
[  227.630950] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630953] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 1348 data 00046da0
[  227.630964] nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 6 [Xorg[751]] get
00000fcb8c put 0000102f84 ib_get 0000017a ib_put 0000017c state 80007354 (err:
INVALID_CMD) push 00400040
[  227.630975] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630978] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 134c data 00000000
[  227.630988] nouveau 0000:04:00.0: gr: DATA_ERROR 00000005 [INVALID_ENUM]
[  227.630991] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 1350 data 000479d0
[  227.665017] nouveau 0000:04:00.0: gr: DATA_ERROR 0000000c [INVALID_BITFIELD]
[  227.665022] nouveau 0000:04:00.0: gr: 00100000 [] ch 6 [007f437000
Xorg[751]] subc 3 class 8397 mthd 135c data 000472e8
[  227.847944] nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 6 [Xorg[751]] get
0000138e10 put 000013b454 ib_get 000001ad ib_put 000001b0 state 40000004 (err:
INVALID_MTHD) push 00400040
[  227.850171] nouveau 0000:04:00.0: fifo: CACHE_ERROR - ch 6 [Xorg[751]] subc
0 mthd 0000 data 00146200
[  227.889579] nouveau 0000:04:00.0: Xorg[751]: multiple instances of buffer 4
on validation list
[  227.889588] nouveau 0000:04:00.0: Xorg[751]: validate_init
[  227.889590] nouveau 0000:04:00.0: Xorg[751]: validate: -22
[  227.891472] nouveau 0000:04:00.0: fifo: DMA_PUSHER - ch 6 [Xorg[751]] get
0000141bf0 put 00001479b8 ib_get 000001b4 ib_put 000001b5 state 80007418 (err:
INVALID_CMD) push 00400040

(the full dmesg.log is attached)

This problem is rather new. It was introduced with a package upgrade in Arch
Linux that happened within the last few days (I will attach the pacman upgrade
log for those who want to know.)

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