[Bug 297145] page fault: autoremove_wake_function

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=297145

            Bug ID: 297145
           Summary: page fault: autoremove_wake_function
           Product: Base System
           Version: 16.0-CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: emulation at FreeBSD.org
          Reporter: pouria at freebsd.org
                CC: desktop at FreeBSD.org, kde at FreeBSD.org

Happens during logout:

Converted image (attached) to text:

panic: page fault cpuid = 26
time = 1785337900
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x36/frame 0xfffffe822e632a00
vpanic() at vpanic+0x149/frame 0xfffffe022e632b30
panic() at panic+0x43/frame 0xfffffe022e632b90
trap_pfault() at trap_pfault+0x3a8/frame 0xfffffe022e632bf0
calltrap() at calltrap+0x8/frame 0xfffffe022e632bf0
trap 0xc, rip = 0xffffffff80eb289c, rsp = 0xfffffe022e632cc0, rbp =
0xfffffe022e632ce0 autoremove_wake_function() at
autoremove_wake_function+0x1c/frame 0xfffffe022e632ce0 linux_wake_up() at
linux_wake_up+0xca/frame 0xfffffe022e632d30
__nv_drm_handle_flip_event() at __nv_drm_handle_flip_event+0x1b2/frame
0xfffffe022e632d80 nv_drm_event_callback() at nv_drm_event_callback+0x90/frame
0xfffffe022e632db0
nvKmskap iHandleEventQueueChange() at nvKmskap i
HandleEventQueueChange+0xa3/frame 0xfffffe022e632 taskqueue_run_locked() at
taskqueue_run_locked+0x1ab/frame 0xfffffe022e632ec0 taskqueue_thread_loop() at
taskqueue_thread_loop+0xc2/frame 0xfffffe022e632ef0
fork_exit() at fork_exit+0x7b/frame 0xfffffe022e632f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe022e632f30
trap 0xe83a1fc6, rip = 0x17fce83a2006, rsp = 0x17fce83a2036, rbp =
0x17fce83a1f56 KDB: enter: panic
[ thread pid 8 tid 182375 1
Stopped at     kdb_enter+0x33: movq   $0,0x11ad472(%rip)

Muxed Laptop: https://wiki.freebsd.org/Laptops/System76_ServalWS_13

% pkg info -a | grep nvidia
libva-nvidia-driver-0.0.17     NVDEC-based backend for VAAPI
linux-nvidia-libs-595.84       NVIDIA graphics libraries and programs (Linux)
nvidia-driver-595.84           NVIDIA graphics driver userland
nvidia-drm-latest-kmod-595.84.1600019_1 NVIDIA DRM Kernel Module
nvidia-kmod-595.84.1600019     NVIDIA graphics driver kernel module
nvidia-settings-595.84         Display Control Panel for NVIDIA graphics
nvidia-xconfig-595.84          NVIDIA graphics X configuration utility

ly -> kde (wayland)
with:
export KWIN_FORCE_SW_CURSOR=1
export KWIN_DRM_DEVICES="/dev/dri/card1:/dev/dri/card0"

% kldstat | grep -E 'nvi|drm|i915'
8    1 0xffffffff83c00000   254410 i915kms.ko
9    3 0xffffffff83a87000    9f41d drm.ko
16    1 0xffffffff83b4f000    15a20 nvidia-drm.ko
17    2 0xffffffff84000000  5b7e838 nvidia.ko
21    1 0xffffffff83e55000   14d2f8 nvidia-modeset.ko

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