[Nouveau] [Bug 106120] New: Hang in XScreenSaver

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Apr 18 08:43:26 UTC 2018 

https://bugs.freedesktop.org/show_bug.cgi?id=106120

            Bug ID: 106120
           Summary: Hang in XScreenSaver
           Product: xorg
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: pmenzel+bugs.freedesktop at molgen.mpg.de
        QA Contact: xorg-team at lists.x.org

Created attachment 138902
  --> https://bugs.freedesktop.org/attachment.cgi?id=138902&action=edit
Linux 4.14.30 messages

On a dual monitor setup, since moving from Nvidia’s proprietary drivers to
Nouveau 1.0.15 with Linux 4.14.30 and X.Org X server 1.19.6, running
XScreenSaver 5.37 over night coming back to the system the program is frozen.

```
$ more /proc/version
Linux version 4.14.30.mx64.211 (root at holidayincambodia.molgen.mpg.de) (gcc
version 7.3.0 (GCC)) #1 SMP Tue Mar
 27 12:40:07 CEST 2018
$ dmesg | grep nouveau
[   55.882828] nouveau 0000:01:00.0: NVIDIA GT216 (0a5c00a2)
[   56.007447] nouveau 0000:01:00.0: bios: version 70.16.72.00.04
[   56.008001] nouveau 0000:01:00.0: fb: 512 MiB DDR3
[   56.057456] nouveau 0000:01:00.0: DRM: VRAM: 512 MiB
[   56.057457] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[   56.057459] nouveau 0000:01:00.0: DRM: TMDS table version 2.0
[   56.057460] nouveau 0000:01:00.0: DRM: DCB version 4.0
[   56.057461] nouveau 0000:01:00.0: DRM: DCB outp 00: 02000380 00000000
[   56.057463] nouveau 0000:01:00.0: DRM: DCB outp 01: 08000382 00020030
[   56.057464] nouveau 0000:01:00.0: DRM: DCB outp 02: 028213a6 0f220010
[   56.057465] nouveau 0000:01:00.0: DRM: DCB outp 03: 02021362 00020010
[   56.057466] nouveau 0000:01:00.0: DRM: DCB conn 00: 00002030
[   56.057467] nouveau 0000:01:00.0: DRM: DCB conn 01: 00101146
[   56.147522] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[   56.198649] nouveau 0000:01:00.0: DRM: allocated 2560x1440 fb: 0x70000, bo
ffff8801f51d3800
[   56.200002] fbcon: nouveaufb (fb0) is primary device
[   56.378972] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[   56.389927] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on
minor 0
[24345.413226] nouveau 0000:01:00.0: gr: TRAP DISPATCH_QUERY
[24345.413228] nouveau 0000:01:00.0: gr: no stuck command?
[24345.413241] nouveau 0000:01:00.0: fb: trapped write at 0020215000 on channel
7 [1f7c3000 timetunnel[10223]] engine 00 [PGRAPH] client 03 [DISPATCH]
subclient 02 [QUERY] reason 00000002 [PAGE_NOT_PRESENT]
[136540.327847] nouveau 0000:01:00.0: gr: TRAP DISPATCH_QUERY
[136540.327849] nouveau 0000:01:00.0: gr: no stuck command?
[136540.327859] nouveau 0000:01:00.0: fb: trapped write at 0020215000 on
channel 7 [1f7b3000 cubicgrid[24392]] engine 00 [PGRAPH] client 03 [DISPATCH]
subclient 02 [QUERY] reason 00000002 [PAGE_NOT_PRESENT]
[149740.682664] nouveau 0000:01:00.0: gr: TRAP DISPATCH_QUERY
[149740.682666] nouveau 0000:01:00.0: gr: no stuck command?
[149740.682682] nouveau 0000:01:00.0: fb: trapped write at 0020215000 on
channel 7 [1f7b3000 flipscreen3d[30021]] engine 00 [PGRAPH] client 03
[DISPATCH] subclient 02 [QUERY] reason 00000002 [PAGE_NOT_PRESENT]
[161741.043699] nouveau 0000:01:00.0: gr: TRAP DISPATCH_QUERY
[161741.043701] nouveau 0000:01:00.0: gr: no stuck command?
[161741.043711] nouveau 0000:01:00.0: fb: trapped write at 0020215000 on
channel 7 [1f7b3000 rubikblocks[2611]] engine 00 [PGRAPH] client 03 [DISPATCH]
subclient 02 [QUERY] reason 00000002 [PAGE_NOT_PRESENT]
[166541.141873] nouveau 0000:01:00.0: gr: TRAP DISPATCH_QUERY
[166541.141875] nouveau 0000:01:00.0: gr: no stuck command?
[166541.141889] nouveau 0000:01:00.0: fb: trapped write at 0020215000 on
channel 7 [1f7b3000 boing[4728]] engine 00 [PGRAPH] client 03 [DISPATCH]
subclient 02 [QUERY] reason 00000002 [PAGE_NOT_PRESENT]
[172738.032860] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 7 [geodesic[7871]]
get 0000000000 put 0000000000 ib_get 00000000 ib_put 00000002 state c0000000
(err: MEM_FAULT) push 00400040
[172738.032870] nouveau 0000:01:00.0: fb: trapped read at 0020010000 on channel
7 [1f6b3000 geodesic[7871]] engine 05 [PFIFO] client 08 [PFIFO_READ] subclient
00 [PUSHBUF] reason 0000000f [DMAOBJ_LIMIT]
[172738.054718] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 7 [geodesic[7871]]
get 0000000000 put 0000000000 ib_get 00000002 ib_put 00000004 state c0000000
(err: MEM_FAULT) push 00400040
[172738.054730] nouveau 0000:01:00.0: fb: trapped read at 0020010010 on channel
7 [1f6b3000 geodesic[7871]] engine 05 [PFIFO] client 08 [PFIFO_READ] subclient
00 [PUSHBUF] reason 0000000f [DMAOBJ_LIMIT]
[172829.815630] nouveau 0000:01:00.0: fifo: DMA_PUSHER - ch 7 [geodesic[7871]]
get 0000000000 put 0000000000 ib_get 00000004 ib_put 00000006 state c0000000
(err: MEM_FAULT) push 00400040
[172829.815640] nouveau 0000:01:00.0: fb: trapped read at 0020010020 on channel
7 [1f6b3000 geodesic[7871]] engine 05 [PFIFO] client 08 [PFIFO_READ] subclient
00 [PUSHBUF] reason 0000000f [DMAOBJ_LIMIT]
```

It could be, that the system was under memory pressure.

root      4572  0.0  0.0 159180  1928 ?        Ssl  Apr16   0:00
/usr/sbin/gdm-binary
root      4577  0.0  0.0 175448  1596 ?        Sl   Apr16   0:00  \_
/usr/lib/gdm/gdm-simple-slave --display-id /org/gnome/DisplayManager/Display1
root      4579  9.2  2.5 694112 202660 tty3    Ssl+ Apr16 263:09      \_
/usr/libexec/Xorg :0 -br -verbose -auth
/var/run/gdm/auth-for-gdm-NG4xU2/database -nolisten tcp
root      4688  0.0  0.0 262704  6812 ?        Sl   Apr16   0:00      \_
gdm-session-worker [pam/gdm-password]
joey1     4741  0.0  0.0  24152   536 ?        Ss   Apr16   0:00          \_
/bin/sh /etc/xdg/xfce4/xinitrc
joey1     4761  0.0  0.0  19768   332 ?        Ss   Apr16   0:00             
\_ /usr/bin/ssh-agent -- startxfce4
joey1     4766  0.0  0.0 325448  3660 ?        Sl   Apr16   0:00             
\_ xfce4-session
joey1     4795  0.0  0.0 355232  6576 ?        Sl   Apr16   0:00               
  \_ bluetooth-applet
joey1     4829  0.0  0.0  64888  2524 ?        S    Apr16   0:08               
  \_ xscreensaver -no-splash
joey1     7871  0.9  0.3 252952 26896 ?        SNl  07:54   1:31               
  |   \_ geodesic -root
joey1     7872  0.3  0.3 255000 26588 ?        SNl  07:54   0:39               
  |   \_ geodesic -root
joey1     4842  0.0  0.1 648920  8148 ?        Sl   Apr16   0:00               
  \_ gnome-sound-applet

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