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Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg

From Md Ayquassar <MdAyquassar1@ro.ru>
Newsgroups linux.debian.bugs.dist, linux.debian.kernel
Subject Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg
Date 2026-04-18 03:50 +0200
Message-ID <ML2YN-g07K-1@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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Package: src:linux
Version: 6.12.74
Control: affects -1 gdm3 xserver-xorg-video-nouveau linux-image-6.12.74+deb13+1-amd64

While examining the boot journal, I stumbled across the following lines:

Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1698]: dbus-daemon[1698]: [session uid=119 pid=1698 pidfd=5] Activating service name='org.gnome.Shell.Notifications' requested by ':1.5' (uid=119 pid=1723 comm="/usr/bin/gnome-shell")
Apr 18 02:40:30 MyHost2022 systemd[1]: Starting upower.service - Daemon for power management...
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension freon@UshakovVasilii_Github.yahoo.com already installed in /usr/share/gnome-shell/extensions/freon@UshakovVasilii_Github.yahoo.com. /usr/share/gnome-shell/extensions/freon@UshakovVasilii_Github.yahoo.com will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension contact@projecthamster.org already installed in /usr/share/gnome-shell/extensions/contact@projecthamster.org. /usr/share/gnome-shell/extensions/contact@projecthamster.org will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension disable-workspace-switcher@jbradaric.me already installed in /usr/share/gnome-shell/extensions/disable-workspace-switcher@jbradaric.me. /usr/share/gnome-shell/extensions/disable-workspace-switcher@jbradaric.me will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension hibernate-status@dromi already installed in /usr/share/gnome-shell/extensions/hibernate-status@dromi. /usr/share/gnome-shell/extensions/hibernate-status@dromi will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension middleclickclose@paolo.tranquilli.gmail.com already installed in /usr/share/gnome-shell/extensions/middleclickclose@paolo.tranquilli.gmail.com. /usr/share/gnome-shell/extensions/middleclickclose@paolo.tranquilli.gmail.com will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension no-overview@fthx already installed in /usr/share/gnome-shell/extensions/no-overview@fthx. /usr/share/gnome-shell/extensions/no-overview@fthx will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension vertical-workspaces@G-dH.github.com already installed in /usr/share/gnome-shell/extensions/vertical-workspaces@G-dH.github.com. /usr/share/gnome-shell/extensions/vertical-workspaces@G-dH.github.com will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension pomodoro@arun.codito.in already installed in /usr/share/gnome-shell/extensions/pomodoro@arun.codito.in. /usr/share/gnome-shell/extensions/pomodoro@arun.codito.in will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension openweather-extension@penguin-teal.github.io already installed in /usr/share/gnome-shell/extensions/openweather-extension@penguin-teal.github.io. /usr/share/gnome-shell/extensions/openweather-extension@penguin-teal.github.io will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension just-perfection-desktop@just-perfection already installed in /usr/share/gnome-shell/extensions/just-perfection-desktop@just-perfection. /usr/share/gnome-shell/extensions/just-perfection-desktop@just-perfection will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension drive-menu@gnome-shell-extensions.gcampax.github.com already installed in /usr/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/drive-menu@gnome-shell-extensions.gcampax.github.com will not be loaded
Apr 18 02:40:30 MyHost2022 gnome-shell[1723]: Extension workspace-indicator@gnome-shell-extensions.gcampax.github.com already installed in /usr/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com. /usr/share/gnome-shell/extensions/workspace-indicator@gnome-shell-extensions.gcampax.github.com will not be loaded
Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1837]: nouveau: kernel rejected pushbuf: No such device
Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1837]: nouveau: ch64: krec 0 pushes 1 bufs 2 relocs 0
Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1837]: nouveau: ch64: buf 00000000 0000000b 00000004 00000004 00000000 0x7f19f443f000 0x5b0000 0x80000
Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1837]: nouveau: ch64: buf 00000001 00000019 00000004 00000004 00000004 (nil) 0x7dd000 0x1000
Apr 18 02:40:30 MyHost2022 /usr/libexec/gdm-x-session[1837]: nouveau: ch64: psh 00000000 0000000cf4 0000000d08
Apr 18 02:40:31 MyHost2022 kernel: nouveau 0000:65:00.0: gsp: mmu fault queued
Apr 18 02:40:31 MyHost2022 kernel: nouveau 0000:65:00.0: gsp: rc engn:00000001 chid:64 type:31 scope:1 part:233
Apr 18 02:40:31 MyHost2022 kernel: nouveau 0000:65:00.0: fifo:001001:0008:0040:[gst-plugin-scan[1837]] errored - disabling channel
Apr 18 02:40:31 MyHost2022 kernel: nouveau 0000:65:00.0: gst-plugin-scan[1837]: channel 64 killed!
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]: [0x00000000] HDR 200406c0 subch 0 NINC
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:         mthd 1b00 NVC597_SET_REPORT_SEMAPHORE_A
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .OFFSET_UPPER = (0x0)
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:         mthd 1b04 NVC597_SET_REPORT_SEMAPHORE_B
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .OFFSET_LOWER = (0x21c000)
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:         mthd 1b08 NVC597_SET_REPORT_SEMAPHORE_C
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .PAYLOAD = (0xf)
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:         mthd 1b0c NVC597_SET_REPORT_SEMAPHORE_D
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .OPERATION = RELEASE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .RELEASE = AFTER_ALL_PRECEEDING_WRITES_COMPLETE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .ACQUIRE = BEFORE_ANY_FOLLOWING_WRITES_START
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .PIPELINE_LOCATION = ALL
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .COMPARISON = EQ
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .AWAKEN_ENABLE = FALSE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .REPORT = NONE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .STRUCTURE_SIZE = ONE_WORD
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .SUB_REPORT = (0x0)
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .REPORT_DWORD_NUMBER = (0x0)
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .FLUSH_DISABLE = FALSE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .REDUCTION_ENABLE = FALSE
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .REDUCTION_OP = RED_ADD
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .REDUCTION_FORMAT = UNSIGNED_32
Apr 18 02:40:31 MyHost2022 /usr/libexec/gdm-x-session[1837]:                 .CONDITIONAL_TRAP = FALSE
Apr 18 02:40:31 MyHost2022 gnome-shell[1723]: Failed to parse saved session file: Datei »/var/lib/gdm3/.config/mutter/sessions/10b0fab0bd7c2c18ce177647282887989600000016990000.ms« konnte nicht geöffnet werden: Datei oder Verzeichnis nicht gefunden
Apr 18 02:40:31 MyHost2022 PackageKit[1839]: daemon start

The messages

dbus-daemon[1698]: [session uid=119 pid=1698 pidfd=5] Activating service name='org.gnome.Shell.Notifications' requested by ':1.5' (uid=119 pid=1723 comm="/usr/bin/gnome-shell")
nouveau: kernel rejected pushbuf: No such device
nouveau: ch64: krec 0 pushes 1 bufs 2 relocs 0
nouveau: ch64: buf 00000000 0000000b 00000004 00000004 00000000 0x7f19f443f000 0x5b0000 0x80000
nouveau: ch64: buf 00000001 00000019 00000004 00000004 00000004 (nil) 0x7dd000 0x1000
nouveau: ch64: psh 00000000 0000000cf4 0000000d08

are yellow, the messages

nouveau 0000:65:00.0: gsp: mmu fault queued
nouveau 0000:65:00.0: gsp: rc engn:00000001 chid:64 type:31 scope:1 part:233
nouveau 0000:65:00.0: fifo:001001:0008:0040:[gst-plugin-scan[1837]] errored - disabling channel

are red, and the messages

nouveau 0000:65:00.0: gst-plugin-scan[1837]: channel 64 killed!
[0x00000000] HDR 200406c0 subch 0 NINC
mthd 1b00 NVC597_SET_REPORT_SEMAPHORE_A
.OFFSET_UPPER = (0x0)
mthd 1b04 NVC597_SET_REPORT_SEMAPHORE_B
.OFFSET_LOWER = (0x21c000)
mthd 1b08 NVC597_SET_REPORT_SEMAPHORE_C
.PAYLOAD = (0xf)
mthd 1b0c NVC597_SET_REPORT_SEMAPHORE_D
.OPERATION = RELEASE
.RELEASE = AFTER_ALL_PRECEEDING_WRITES_COMPLETE
.ACQUIRE = BEFORE_ANY_FOLLOWING_WRITES_START
.PIPELINE_LOCATION = ALL
.COMPARISON = EQ
.AWAKEN_ENABLE = FALSE
.REPORT = NONE
.STRUCTURE_SIZE = ONE_WORD
.SUB_REPORT = (0x0)
.REPORT_DWORD_NUMBER = (0x0)
.FLUSH_DISABLE = FALSE
.REDUCTION_ENABLE = FALSE
.REDUCTION_OP = RED_ADD
.REDUCTION_FORMAT = UNSIGNED_32
.CONDITIONAL_TRAP = FALSE
Failed to parse saved session file: Datei »/var/lib/gdm3/.config/mutter/sessions/10b0fab0bd7c2c18ce177647282887989600000016990000.ms« konnte nicht geöffnet werden: Datei oder Verzeichnis nicht gefunden

are yellow again.

As the machine experiences certain higher-level issues (e.g., we had to manually force xorg with WaylandEnable=false in /etc/gdm3/daemon.conf), we'd like to track down the most important error message in the log first – to the extent possible (yes, we know that nouveau is reverse-engineered and tried to use the proprietary nvidia driver – it deserves bug reports of its own).

I can't post the full log for privacy reasons, but specific details are certainly possible when asked. The graphics card is NVIDIA PΛLiΤ GeForce GTX 1660, listed as “65:00.0 VGA compatible controller: NVIDIA Corporation TU116 [GeForce GTX 1660] (rev a1) (prog-if 00 [VGA controller])” by lspci.

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Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg Md Ayquassar <MdAyquassar1@ro.ru> - 2026-04-18 03:50 +0200
  Processed: “nouveau: kernel rejected pushbuf:  No such device” and “gsp: mmu  fault queued” with NVIDIA PΛLiΤ  GeForce GTX 1660 and xorg "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-04-18 03:50 +0200
  Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg Uwe Kleine-König <u.kleine-koenig@baylibre.com> - 2026-04-22 21:50 +0200
    Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg Md Ayquassar <MdAyquassar1@ro.ru> - 2026-04-23 00:10 +0200
      Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg Uwe Kleine-König <ukleinek@debian.org> - 2026-05-02 08:00 +0200
    Bug#1134242: “nouveau: kernel rejected pushbuf: No such device” and “gsp: mmu fault queued” with NVIDIA PΛLiΤ GeForce GTX 1660 and xorg Md Ayquassar <MdAyquassar1@ro.ru> - 2026-04-23 13:50 +0200

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