https://bugzilla.kernel.org/show_bug.cgi?id=210849
--- Comment #8 from JerryD (jvdelisle@charter.net) --- In the 5.18 kernel which does not hang on me I also have a segfault:
[ 224.767359] Call Trace: [ 224.767529] amdgpu_dm_backlight_update_status+0xb4/0xc0 [amdgpu] [ 224.767535] backlight_suspend+0x6a/0x80 [ 224.767538] ? brightness_store+0x50/0x50 [ 224.767541] dpm_run_callback+0x4f/0x140 [ 224.767544] __device_suspend+0x11c/0x4a0 [ 224.767547] dpm_suspend+0x117/0x250 [ 224.767549] dpm_suspend_start+0x77/0x80 [ 224.767554] suspend_devices_and_enter+0xe6/0x7f0 [ 224.767557] pm_suspend.cold+0x333/0x38c [ 224.767560] state_store+0x71/0xd0 [ 224.767565] kernfs_fop_write+0xce/0x1b0 [ 224.767569] vfs_write+0xc7/0x1f0 [ 224.767572] ksys_write+0x4f/0xc0 [ 224.767576] do_syscall_64+0x4d/0x90 [ 224.767580] entry_SYSCALL_64_after_hwframe+0x44/0xa9
This happens coming out of suspend. So pretty sure amdgpu is the culprit.