kernel panic during shutdown in v7.2-rc4 and next-20260722 with PREEMPT_RT

kernel panic during shutdown in v7.2-rc4 and next-20260722 with PREEMPT_RT

[Bert Karwatzki]

When shutting down my Linux system (debian sid with kernel next-20260722 with PREEMPT_RT)
I either get an indefinite hang (with cursor blinking in the top left corner
of the screen) or a kernel panic qrcode with message "fatal exception in
interrupt". Unfortunately the qrcode cannot store the whole kernel message,
so I tried to bisect this (from v7.2-rc4 to next-20260722).
 
During the bisection I also had kernel panics occuring when shutting down v7.2-rc4,
but these are much harder to reproduce.
I'll try to figure out what's going using git bisect but this may take some time as I
a) Have to search for a good case
b) Go throught 10-20 reboot cycles to declare a commit as good

I used netconsole to capture an error message from next-20260722 
T1473;BUG: scheduling while atomic: Xorg/1473/0x00000003
T1473,ncfrag=0/961;Modules linked in: netconsole snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib snd_ump mt7925_common snd_rawmidi mt792x_lib snd_seq_device mt76_connac_lib intel_rapl_msr iosf_mbi mt76 snd_hda_codec_atihdmi intel_rapl_common snd_hda_codec_hdmi rapl mac80211 snd_hda_intel snd_hda_codec spd5118 regmap_i2c snd_hda_core pcspkr snd_intel_dspcfg snd_hwdep snd_pcm snd_timer libarc4 snd cfg80211 soundcore k10temp rfkill evdev ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci libata drm_kms_helper xhci_pci drm xhci_hcd scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring nvme_au
T1473,ncfrag=899/961;th usb_common i2c_piix4 gpio_amdpt wmi gpio_generic i2c_smbus
T1473;CPU: 17 UID: 0 PID: 1473 Comm: Xorg Not tainted 7.2.0-rc4-next-20260722-gpuresetfix-00002-ga578edd2a4b3 #601 PREEMPT_RT 
T1473;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1473;Call Trace:
T1473; <TASK>
T1473; ? dump_stack_lvl+0x4b/0x70
T1473; ? __schedule_bug.cold+0x3e/0x4a
T1473; ? __schedule+0xf5f/0x16e0
T1473; ? dml2_core_calcs_mode_programming_ex+0x2f60/0x6c80 [amdgpu]
T1473; ? schedule_rtlock+0x15/0x30
T1473; ? rtlock_slowlock_locked+0x30c/0xe50
T1473; ? rt_spin_lock+0xc3/0x120
T1473; ? get_page_from_freelist+0x248/0x19f0
T1473; ? __alloc_frozen_pages_noprof+0x197/0x330
T1473; ? ___kmalloc_large_node+0xb1/0xd0
T1473; ? __kvmalloc_node_noprof+0x383/0x560
T1473; ? dc_create_plane_state+0x24/0x90 [amdgpu]
T1473; ? dc_create_plane_state+0x24/0x90 [amdgpu]
T1473; ? dc_state_create_phantom_plane+0x15/0x50 [amdgpu]
T1473; ? dml21_handle_phantom_streams_planes+0x292/0x510 [amdgpu]
T1473; ? dml21_mode_check_and_programming+0x157/0x7d0 [amdgpu]
T1473; ? spl_set_filters_data+0xbc/0xd0 [amdgpu]
T1473; ? dcn401_validate_bandwidth+0xb8/0x1f0 [amdgpu]
T1473; ? update_planes_and_stream_state+0xffa/0x1630 [amdgpu]
T1473; ? update_planes_and_stream_prepare_v3+0xb6/0x440 [amdgpu]
T1473; ? dc_update_planes_and_stream+0x87/0x140 [amdgpu]
T1473; ? amdgpu_dm_atomic_commit_tail+0x1740/0x3750 [amdgpu]
T1473; ? commit_tail+0xcd/0x160 [drm_kms_helper]
T1473; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1473; ? drm_atomic_commit+0xac/0xe0 [drm]
T1473; ? __drm_universal_plane_init.cold+0x19/0x19 [drm]
T1473; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1473; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1473; ? drm_syncobj_transfer_ioctl+0x300/0x300 [drm]
T1473; ? rt_spin_trylock+0x1c/0x80
T1473; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1473; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1473; ? drm_ioctl+0x27f/0x520 [drm]
T1473; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1473; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1473; ? __x64_sys_ioctl+0x92/0xe0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? __futex_wake_mark+0x50/0x50
T1473; ? futex_wait+0x66/0x110
T1473; ? wake_up_q+0x32/0x80
T1473; ? futex_wake+0x101/0x220
T1473; ? do_futex+0xd6/0x210
T1473; ? __x64_sys_futex+0x10d/0x200
T1473; ? do_futex+0x107/0x210
T1473; ? __x64_sys_futex+0x10d/0x200
T1473; ? do_syscall_64+0x1fa/0x500
T1473; ? __task_pid_nr_ns+0x53/0xe0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? do_syscall_64+0x37/0x500
T1473; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1473; </TASK>
C17;------------[ cut here ]------------
T1473;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:97 at dc_fpu_begin+0x4f/0x60 [amdgpu], CPU#17: Xorg/1473
T1473,ncfrag=0/961;Modules linked in: netconsole snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib snd_ump mt7925_common snd_rawmidi mt792x_lib snd_seq_device mt76_connac_lib intel_rapl_msr iosf_mbi mt76 snd_hda_codec_atihdmi intel_rapl_common snd_hda_codec_hdmi rapl mac80211 snd_hda_intel snd_hda_codec spd5118 regmap_i2c snd_hda_core pcspkr snd_intel_dspcfg snd_hwdep snd_pcm snd_timer libarc4 snd cfg80211 soundcore k10temp rfkill evdev ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci libata drm_kms_helper xhci_pci drm xhci_hcd scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring nvme_au
T1473,ncfrag=899/961;th usb_common i2c_piix4 gpio_amdpt wmi gpio_generic i2c_smbus
T1473;CPU: 17 UID: 0 PID: 1473 Comm: Xorg Tainted: G        W           7.2.0-rc4-next-20260722-gpuresetfix-00002-ga578edd2a4b3 #601 PREEMPT_RT 
T1473;Tainted: [W]=WARN
T1473;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1473;RIP: 0010:dc_fpu_begin+0x4f/0x60 [amdgpu]
T1473;Code: d0 75 27 65 ff 05 a1 e8 db ce b8 01 00 00 00 65 0f c1 05 64 f8 dc ce 85 c0 74 05 c3 cc cc cc cc bf 02 00 00 00 e9 11 6d b8 cd <0f> 0b eb d5 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 b8
T1473;RSP: 0018:ffffb251c623f5d0 EFLAGS: 00010206
T1473;RAX: 0000000000ff0000 RBX: ffff8a8f21400000 RCX: ffff8a8ed0f00000
T1473;RDX: 0000000000ff0000 RSI: 000000000000073d RDI: ffffffffc11b1540
T1473;RBP: 0000000000000001 R08: ffffb251c623f5a4 R09: 000000000000000a
T1473;R10: ffffb251c623f548 R11: 0000000000000002 R12: ffff8a8fa4468000
T1473;R13: ffff8a8ed1888000 R14: ffff8a8f89380000 R15: ffff8a8f21400000
T1473;FS:  00007eff71d77b80(0000) GS:ffff8a9e6e1b0000(0000) knlGS:0000000000000000
T1473;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1473;CR2: 00007ffcab257cc8 CR3: 0000000162691000 CR4: 0000000000f50ef0
T1473;PKRU: 55555554
T1473;Call Trace:
T1473; <TASK>
T1473; ? dcn401_prepare_mcache_programming+0x2f/0x70 [amdgpu]
T1473; ? commit_planes_for_stream+0x155/0x1900 [amdgpu]
T1473; ? update_planes_and_stream_execute_v3+0x3c/0xd0 [amdgpu]
T1473; ? dc_update_planes_and_stream+0xb6/0x140 [amdgpu]
T1473; ? amdgpu_dm_atomic_commit_tail+0x1740/0x3750 [amdgpu]
T1473; ? commit_tail+0xcd/0x160 [drm_kms_helper]
T1473; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1473; ? drm_atomic_commit+0xac/0xe0 [drm]
T1473; ? __drm_universal_plane_init.cold+0x19/0x19 [drm]
T1473; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1473; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1473; ? drm_syncobj_transfer_ioctl+0x300/0x300 [drm]
T1473; ? rt_spin_trylock+0x1c/0x80
T1473; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1473; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1473; ? drm_ioctl+0x27f/0x520 [drm]
T1473; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1473; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1473; ? __x64_sys_ioctl+0x92/0xe0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? __futex_wake_mark+0x50/0x50
T1473; ? futex_wait+0x66/0x110
T1473; ? wake_up_q+0x32/0x80
T1473; ? futex_wake+0x101/0x220
T1473; ? do_futex+0xd6/0x210
T1473; ? __x64_sys_futex+0x10d/0x200
T1473; ? do_futex+0x107/0x210
T1473; ? __x64_sys_futex+0x10d/0x200
T1473; ? do_syscall_64+0x1fa/0x500
T1473; ? __task_pid_nr_ns+0x53/0xe0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? do_syscall_64+0x37/0x500
T1473; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1473; </TASK>
T1473;---[ end trace 0000000000000000 ]---
C17;BUG: scheduling while atomic: Xorg/1473/0x7fffffff
C17,ncfrag=0/961;Modules linked in: netconsole snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib snd_ump mt7925_common snd_rawmidi mt792x_lib snd_seq_device mt76_connac_lib intel_rapl_msr iosf_mbi mt76 snd_hda_codec_atihdmi intel_rapl_common snd_hda_codec_hdmi rapl mac80211 snd_hda_intel snd_hda_codec spd5118 regmap_i2c snd_hda_core pcspkr snd_intel_dspcfg snd_hwdep snd_pcm snd_timer libarc4 snd cfg80211 soundcore k10temp rfkill evdev ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci libata drm_kms_helper xhci_pci drm xhci_hcd scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring nvme_auth
C17,ncfrag=901/961; usb_common i2c_piix4 gpio_amdpt wmi gpio_generic i2c_smbus
C17;CPU: 17 UID: 0 PID: 1473 Comm: Xorg Tainted: G        W           7.2.0-rc4-next-20260722-gpuresetfix-00002-ga578edd2a4b3 #601 PREEMPT_RT 
C17;Tainted: [W]=WARN
C17;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
C17;Call Trace:
C17; <TASK>
C17; ? dump_stack_lvl+0x4b/0x70
C17; ? __schedule_bug.cold+0x3e/0x4a
C17; ? __schedule+0xf5f/0x16e0
C17; ? __hrtimer_rearm_deferred+0x4c/0xd0
C17; ? schedule+0x22/0xa0
C17; ? usleep_range_state+0xbb/0xf0
C17; ? hrtimer_hres_workfn+0x10/0x10
C17; ? dcn10_wait_for_pipe_update_if_needed+0x231/0x240 [amdgpu]
C17; ? commit_planes_for_stream+0x2f2/0x1900 [amdgpu]
C17; ? update_planes_and_stream_execute_v3+0x3c/0xd0 [amdgpu]
C17; ? dc_update_planes_and_stream+0xb6/0x140 [amdgpu]
C17; ? amdgpu_dm_atomic_commit_tail+0x1740/0x3750 [amdgpu]
C17; ? commit_tail+0xcd/0x160 [drm_kms_helper]
C17; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
C17; ? drm_atomic_commit+0xac/0xe0 [drm]
C17; ? __drm_universal_plane_init.cold+0x19/0x19 [drm]
C17; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
C17; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
C17; ? drm_syncobj_transfer_ioctl+0x300/0x300 [drm]
C17; ? rt_spin_trylock+0x1c/0x80
C17; ? drm_mode_getcrtc+0x180/0x180 [drm]
C17; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
C17; ? drm_ioctl+0x27f/0x520 [drm]
C17; ? drm_mode_getcrtc+0x180/0x180 [drm]
C17; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
C17; ? __x64_sys_ioctl+0x92/0xe0
C17; ? do_syscall_64+0xbd/0x500
C17; ? __futex_wake_mark+0x50/0x50
C17; ? futex_wait+0x66/0x110
C17; ? wake_up_q+0x32/0x80
C17; ? futex_wake+0x101/0x220
C17; ? do_futex+0xd6/0x210
C17; ? __x64_sys_futex+0x10d/0x200
C17; ? do_futex+0x107/0x210
C17; ? __x64_sys_futex+0x10d/0x200
C17; ? do_syscall_64+0x1fa/0x500
C17; ? __task_pid_nr_ns+0x53/0xe0
C17; ? do_syscall_64+0xbd/0x500
C17; ? do_syscall_64+0x37/0x500
C17; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
C17; </TASK>
T1473;BUG: scheduling while atomic: Xorg/1473/0x00000003
T1473,ncfrag=0/961;Modules linked in: netconsole snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib snd_ump mt7925_common snd_rawmidi mt792x_lib snd_seq_device mt76_connac_lib intel_rapl_msr iosf_mbi mt76 snd_hda_codec_atihdmi intel_rapl_common snd_hda_codec_hdmi rapl mac80211 snd_hda_intel snd_hda_codec spd5118 regmap_i2c snd_hda_core pcspkr snd_intel_dspcfg snd_hwdep snd_pcm snd_timer libarc4 snd cfg80211 soundcore k10temp rfkill evdev ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci libata drm_kms_helper xhci_pci drm xhci_hcd scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring nvme_au
T1473,ncfrag=899/961;th usb_common i2c_piix4 gpio_amdpt wmi gpio_generic i2c_smbus
T1473;CPU: 17 UID: 0 PID: 1473 Comm: Xorg Tainted: G        W           7.2.0-rc4-next-20260722-gpuresetfix-00002-ga578edd2a4b3 #601 PREEMPT_RT 
T1473;Tainted: [W]=WARN
T1473;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1473;Call Trace:
T1473; <TASK>
T1473; ? dump_stack_lvl+0x4b/0x70
T1473; ? __schedule_bug.cold+0x3e/0x4a
T1473; ? __schedule+0xf5f/0x16e0
T1473; ? dml2_core_calcs_mode_programming_ex+0x2f60/0x6c80 [amdgpu]
T1473; ? schedule_rtlock+0x15/0x30
T1473; ? rtlock_slowlock_locked+0x30c/0xe50
T1473; ? rt_spin_lock+0xc3/0x120
T1473; ? get_page_from_freelist+0x248/0x19f0
T1473; ? update_cfs_rq_load_avg+0x1a/0x240
T1473; ? __alloc_frozen_pages_noprof+0x197/0x330
T1473; ? ___kmalloc_large_node+0xb1/0xd0
T1473; ? __kvmalloc_node_noprof+0x383/0x560
T1473; ? dc_create_plane_state+0x24/0x90 [amdgpu]
T1473; ? dc_create_plane_state+0x24/0x90 [amdgpu]
T1473; ? dc_state_create_phantom_plane+0x15/0x50 [amdgpu]
T1473; ? dml21_handle_phantom_streams_planes+0x292/0x510 [amdgpu]
T1473; ? dml21_mode_check_and_programming+0x157/0x7d0 [amdgpu]
T1473; ? ___task_rq_lock+0x2d/0xa0
T1473; ? update_rq_clock+0x70/0x110
T1473; ? rt_mutex_setprio+0x61/0x340
T1473; ? calculate_plane_rec_in_timing_active+0x142/0x1f0 [amdgpu]
T1473; ? spl_calculate_number_of_taps.constprop.0.isra.0+0x142/0xf00 [amdgpu]
T1473; ? spl_calculate_number_of_taps.constprop.0.isra.0+0xed4/0xf00 [amdgpu]
T1473; ? dcn401_validate_bandwidth+0xb8/0x1f0 [amdgpu]
T1473; ? dc_validate_with_context+0x5c5/0x6a0 [amdgpu]
T1473; ? dc_commit_streams+0x27c/0x4f0 [amdgpu]
T1473; ? amdgpu_dm_atomic_commit_tail+0x681/0x3750 [amdgpu]
T1473; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1473; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1473; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1473; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1473; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1473; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1473; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1473; ? wait_for_completion_timeout+0x122/0x170
T1473; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1473; ? commit_tail+0xcd/0x160 [drm_kms_helper]
T1473; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1473; ? drm_atomic_commit+0xac/0xe0 [drm]
T1473; ? __drm_universal_plane_init.cold+0x19/0x19 [drm]
T1473; ? drm_mode_obj_set_property_ioctl+0x162/0x3b0 [drm]
T1473; ? drm_mode_obj_find_prop_id+0x50/0x50 [drm]
T1473; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1473; ? drm_ioctl+0x27f/0x520 [drm]
T1473; ? drm_mode_obj_find_prop_id+0x50/0x50 [drm]
T1473; ? rt_spin_trylock+0x1c/0x80
T1473; ? kmem_cache_free+0x214/0x430
T1473; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1473; ? __x64_sys_ioctl+0x92/0xe0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? do_epoll_ctl+0xbb/0xe0
T1473; ? __x64_sys_epoll_ctl+0x5f/0xa0
T1473; ? do_syscall_64+0xbd/0x500
T1473; ? count_memcg_events+0x67/0x110
T1473; ? handle_mm_fault+0x1bb/0x2c0
T1473; ? do_user_addr_fault+0x1e3/0x5e0
T1473; ? __flush_smp_call_function_queue+0x16a/0x1f0
T1473; ? do_syscall_64+0x37/0x500
T1473; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1473; </TASK>
C17;BUG: scheduling while atomic: Xorg/1473/0x7fffffff
C17,ncfrag=0/961;Modules linked in: netconsole snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib snd_ump mt7925_common snd_rawmidi mt792x_lib snd_seq_device mt76_connac_lib intel_rapl_msr iosf_mbi mt76 snd_hda_codec_atihdmi intel_rapl_common snd_hda_codec_hdmi rapl mac80211 snd_hda_intel snd_hda_codec spd5118 regmap_i2c snd_hda_core pcspkr snd_intel_dspcfg snd_hwdep snd_pcm snd_timer libarc4 snd cfg80211 soundcore k10temp rfkill evdev ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci libata drm_kms_helper xhci_pci drm xhci_hcd scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring nvme_auth
C17,ncfrag=901/961; usb_common i2c_piix4 gpio_amdpt wmi gpio_generic i2c_smbus
C17;CPU: 17 UID: 0 PID: 1473 Comm: Xorg Tainted: G        W           7.2.0-rc4-next-20260722-gpuresetfix-00002-ga578edd2a4b3 #601 PREEMPT_RT 
C17;Tainted: [W]=WARN
C17;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
C17;Call Trace:
C17; <TASK>
C17; ? dump_stack_lvl+0x4b/0x70
C17; ? __schedule_bug.cold+0x3e/0x4a
C17; ? __schedule+0xf5f/0x16e0
C17; ? schedule+0x22/0xa0
C17; ? usleep_range_state+0xbb/0xf0
C17; ? hrtimer_hres_workfn+0x10/0x10
C17; ? dcn10_wait_for_pipe_update_if_needed+0x231/0x240 [amdgpu]
C17; ? dc_commit_state_no_check+0x1b0/0xe00 [amdgpu]
C17; ? dc_commit_streams+0x2f4/0x4f0 [amdgpu]
C17; ? amdgpu_dm_atomic_commit_tail+0x681/0x3750 [amdgpu]
C17; ? generic_reg_get+0x1c/0x30 [amdgpu]
C17; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
C17; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
C17; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
C17; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
C17; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
C17; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
C17; ? wait_for_completion_timeout+0x122/0x170
C17; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
C17; ? commit_tail+0xcd/0x160 [drm_kms_helper]
C17; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
C17; ? drm_atomic_commit+0xac/0xe0 [drm]
C17; ? __drm_universal_plane_init.cold+0x19/0x19 [drm]
C17; ? drm_mode_obj_set_property_ioctl+0x162/0x3b0 [drm]
C17; ? drm_mode_obj_find_prop_id+0x50/0x50 [drm]
C17; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
C17; ? drm_ioctl+0x27f/0x520 [drm]
C17; ? drm_mode_obj_find_prop_id+0x50/0x50 [drm]
C17; ? rt_spin_trylock+0x1c/0x80
C17; ? kmem_cache_free+0x214/0x430
C17; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
C17; ? __x64_sys_ioctl+0x92/0xe0
C17; ? do_syscall_64+0xbd/0x500
C17; ? do_epoll_ctl+0xbb/0xe0
C17; ? __x64_sys_epoll_ctl+0x5f/0xa0
C17; ? do_syscall_64+0xbd/0x500
C17; ? count_memcg_events+0x67/0x110
C17; ? handle_mm_fault+0x1bb/0x2c0
C17; ? do_user_addr_fault+0x1e3/0x5e0
C17; ? __flush_smp_call_function_queue+0x16a/0x1f0
C17; ? do_syscall_64+0x37/0x500
C17; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
C17; </TASK>
T1273;wlp9s0: deauthenticating from 54:67:51:3d:a2:d2 by local choice (Reason: 3=DEAUTH_LEAVING)
T23080;EXT4-fs (nvme0n1p5): unmounting filesystem 15783f8d-d7dd-4c1a-a7f8-84d944f03886.
T23079;EXT4-fs (nvme0n1p4): unmounting filesystem ab8e4bed-5cab-4ae8-875a-8a42e075b551.
T1;systemd-shutdown[1]: Syncing filesystems and block devices.
T1;systemd-shutdown[1]: Sending SIGTERM to remaining processes...
T752;systemd-journald[752]: Received SIGTERM from PID 1 (systemd-shutdow).
T1;systemd-shutdown[1]: Sending SIGKILL to remaining processes...
T1;systemd-shutdown[1]: Unmounting file systems.
T23096;(sd-umount)[23096]: Unmounting '/run/credentials/systemd-journald.service'.
T23097;(sd-remount)[23097]: Remounting '/' read-only with options 'errors=remount-ro'.
T23097;EXT4-fs (nvme0n1p2): re-mounted 3d5cdc5d-1902-40bf-9e16-ca819372d350 ro.
T1;systemd-shutdown[1]: All filesystems unmounted.
T1;systemd-shutdown[1]: Deactivating swaps.
T1;systemd-shutdown[1]: All swaps deactivated.
T1;systemd-shutdown[1]: Detaching loop devices.
T1;systemd-shutdown[1]: All loop devices detached.
T1;systemd-shutdown[1]: Stopping MD devices.
T1;systemd-shutdown[1]: All MD devices stopped.
T1;systemd-shutdown[1]: Detaching DM devices.
T1;systemd-shutdown[1]: All DM devices detached.
T1;systemd-shutdown[1]: All filesystems, swaps, loop devices, MD devices and DM devices detached.
T1;systemd-shutdown[1]: Syncing filesystems and block devices.
T1;systemd-shutdown[1]: Rebooting.

This error message shows that this is an amdgpu problem and also probably
a PREEMPT_RT problem (due to the scheduling while atomic message).
@rafal.ostrowski: This looks vaguely similar to the bug I reported in april, so maybe
you have an idea what's going on:
https://lore.kernel.org/all/20260409131411.10598-1-spasswolf@web.de/


Hardware:
$ lspci -nn
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Root Complex [1022:14d8]
00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge IOMMU [1022:14d9]
00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge GPP Bridge [1022:14db]
00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge GPP Bridge [1022:14db]
00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
00:02.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge GPP Bridge [1022:14db]
00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
00:04.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Dummy Host Bridge [1022:14da]
00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Internal GPP Bridge to Bus [C:A] [1022:14dd]
00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Internal GPP Bridge to Bus [C:A] [1022:14dd]
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 71)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 0 [1022:14e0]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 1 [1022:14e1]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 2 [1022:14e2]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 3 [1022:14e3]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 4 [1022:14e4]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 5 [1022:14e5]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 6 [1022:14e6]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge Data Fabric; Function 7 [1022:14e7]
01:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Upstream Port of PCI Express Switch [1002:1478] (rev 25)
02:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Downstream Port of PCI Express Switch [1002:1479] (rev 25)
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 44 [Radeon RX 9060 XT] [1002:7590] (rev c0)
03:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 48 HDMI/DP Audio Controller [1002:ab40]
04:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD 9100 PRO [PM9E1] [144d:a810]
05:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Upstream Port [1022:43f4] (rev 01)
06:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
06:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
06:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
06:08.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
06:0c.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
06:0d.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port [1022:43f5] (rev 01)
08:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller I226-V [8086:125c] (rev 06)
09:00.0 Network controller [0280]: MEDIATEK Corp. MT7925 802.11be 160MHz 2x2 PCIe Wireless Network Adapter [Filogic 360] [14c3:7925]
0b:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] 800 Series Chipset USB 3.x XHCI Controller [1022:43fc] (rev 01)
0c:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller [1022:43f6] (rev 01)
0d:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge PCIe Dummy Function [1022:14de] (rev c1)
0d:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP [1022:1649]
0d:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 3.1 xHCI [1022:15b6]
0d:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 3.1 xHCI [1022:15b7]
0e:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Raphael/Granite Ridge USB 2.0 xHCI [1022:15b8]

$ cat /proc/cpuinfo 
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 26
model		: 68
model name	: AMD Ryzen 9 9950X 16-Core Processor
stepping	: 0
microcode	: 0xb404035
cpu MHz		: 624.194
cache size	: 1024 KB
physical id	: 0
siblings	: 32
core id		: 0
cpu cores	: 16
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 16
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good amd_lbr_v2 nopl xtopology nonstop_tsc cpuid extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpuid_fault cpb cat_l3 cdp_l3 hw_pstate ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local user_shstk avx_vnni avx512_bf16 clzero irperf xsaveerptr rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif x2avic v_spec_ctrl vnmi avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid bus_lock_detect movdiri movdir64b overflow_recov succor smca fsrm avx512_vp2intersect flush_l1d amd_lbr_pmc_freeze
bugs		: sysret_ss_attrs spectre_v1 spectre_v2 spec_store_bypass srso spectre_v2_user vmscape
bogomips	: 8599.98
TLB size	: 192 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]


Bert Karwatzki

[Re] kernel panic during shutdown in v7.2-rc4 and next-20260722 with PREEMPT_RT

[Bert Karwatzki]

I was able to gather an error message from a failed shutdwon in v7.2-rc4:

T1475;BUG: scheduling while atomic: Xorg/1475/0x00000003
T1475,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib mt7925_common snd_ump mt792x_lib snd_rawmidi intel_rapl_msr snd_seq_device mt76_connac_lib iosf_mbi intel_rapl_common mt76 snd_hda_codec_atihdmi rapl snd_hda_codec_hdmi mac80211 snd_hda_intel pcspkr wmi_bmof snd_hda_codec snd_hda_core snd_intel_dspcfg snd_hwdep snd_pcm libarc4 spd5118 snd_timer cfg80211 regmap_i2c snd soundcore rfkill aead evdev ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid drm_client_lib i2c_algo_bit hid drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring i2c_piix4 gpio_amdpt usb_common nvme_auth wmi
T1475,ncfrag=955/979; i2c_smbus gpio_generic
T1475;CPU: 22 UID: 0 PID: 1475 Comm: Xorg Not tainted 7.2.0-rc4-stable #16 PREEMPT_{RT,(full)} 
T1475;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1475;Call Trace:
T1475; <TASK>
T1475; ? dump_stack_lvl+0x4b/0x70
T1475; ? __schedule_bug.cold+0x3e/0x4a
T1475; ? __schedule+0xf64/0x16f0
T1475; ? pick_task_fair+0x4b/0x6e0
T1475; ? schedule_rtlock+0x15/0x30
T1475; ? rtlock_slowlock_locked+0x30c/0xe50
T1475; ? rt_spin_lock+0xc3/0x120
T1475; ? get_page_from_freelist+0x22e/0x1640
T1475; ? __alloc_frozen_pages_noprof+0x146/0x2b0
T1475; ? ___kmalloc_large_node+0xae/0xd0
T1475; ? __kvmalloc_node_noprof+0x36c/0x580
T1475; ? dc_create_plane_state+0x24/0x80 [amdgpu]
T1475; ? dc_create_plane_state+0x24/0x80 [amdgpu]
T1475; ? dc_state_create_phantom_plane+0x15/0x50 [amdgpu]
T1475; ? dml21_handle_phantom_streams_planes+0x292/0x510 [amdgpu]
T1475; ? dml21_mode_check_and_programming+0x157/0x7e0 [amdgpu]
T1475; ? spl_set_filters_data+0xbc/0xd0 [amdgpu]
T1475; ? spl_calculate_scaler_params+0x39d/0x1c00 [amdgpu]
T1475; ? dc_state_remove_plane+0xaf/0x150 [amdgpu]
T1475; ? dcn401_validate_bandwidth+0xb8/0x1f0 [amdgpu]
T1475; ? update_planes_and_stream_state+0xfc7/0x16a0 [amdgpu]
T1475; ? update_planes_and_stream_prepare_v3+0xb6/0x430 [amdgpu]
T1475; ? dc_update_planes_and_stream+0x87/0x140 [amdgpu]
T1475; ? amdgpu_dm_atomic_commit_tail+0x16c0/0x3800 [amdgpu]
T1475; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1475; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1475; ? drm_atomic_commit+0xac/0xe0 [drm]
T1475; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1475; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1475; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1475; ? rt_spin_lock+0x35/0x120
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1475; ? drm_ioctl+0x27f/0x500 [drm]
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0x92/0xe0
T1475; ? do_syscall_64+0xdd/0x5d0
T1475; ? amdgpu_drm_ioctl+0x65/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0xac/0xe0
T1475; ? switch_fpu_return+0x42/0x70
T1475; ? do_syscall_64+0x226/0x5d0
T1475; ? __ext4_journal_stop+0x3a/0xc0 [ext4]
T1475; ? ext4_da_write_end+0x2de/0x340 [ext4]
T1475; ? generic_perform_write+0x131/0x280
T1475; ? up_write+0x29/0x50
T1475; ? psi_group_change+0x112/0x2c0
T1475; ? update_cfs_rq_load_avg+0x1a/0x240
T1475; ? psi_task_switch+0x105/0x280
T1475; ? finish_task_switch.isra.0+0xc2/0x3c0
T1475; ? __schedule+0x374/0x16f0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x94/0x5d0
T1475; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1475; </TASK>
T1475;------------[ cut here ]------------
T1475;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:126 at dc_fpu_end+0x36/0x40 [amdgpu], CPU#1: Xorg/1475
T1475,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib mt7925_common snd_ump mt792x_lib snd_rawmidi intel_rapl_msr snd_seq_device mt76_connac_lib iosf_mbi intel_rapl_common mt76 snd_hda_codec_atihdmi rapl snd_hda_codec_hdmi mac80211 snd_hda_intel pcspkr wmi_bmof snd_hda_codec snd_hda_core snd_intel_dspcfg snd_hwdep snd_pcm libarc4 spd5118 snd_timer cfg80211 regmap_i2c snd soundcore rfkill aead evdev ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid drm_client_lib i2c_algo_bit hid drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring i2c_piix4 gpio_amdpt usb_common nvme_auth wmi
T1475,ncfrag=955/979; i2c_smbus gpio_generic
T1475;CPU: 1 UID: 0 PID: 1475 Comm: Xorg Tainted: G        W           7.2.0-rc4-stable #16 PREEMPT_{RT,(full)} 
T1475;Tainted: [W]=WARN
T1475;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1475;RIP: 0010:dc_fpu_end+0x36/0x40 [amdgpu]
T1475;Code: 05 4f df 16 c7 ff c8 74 10 78 1f 65 ff 0d 72 cf 15 c7 74 0c c3 cc cc cc cc e8 96 95 12 c6 eb eb e8 ef 09 11 c6 c3 cc cc cc cc <0f> 0b eb dd 66 0f 1f 44 00 00 41 56 41 55 41 54 55 53 48 83 ec 10
T1475;RSP: 0018:ffffb6c2059d7118 EFLAGS: 00010296
T1475;RAX: 00000000ffffffff RBX: ffff9e1a61f00000 RCX: 0000000000000008
T1475;RDX: 0000000000000000 RSI: 0000000000000719 RDI: ffffffffc13b3550
T1475;RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
T1475;R10: ffff9e1a61f00000 R11: 0000000000000002 R12: ffff9e16cc280000
T1475;R13: ffff9e1721c00000 R14: 0000000000000000 R15: 0000000000000001
T1475;FS:  00007fbc7ca7eb80(0000) GS:ffff9e26757b5000(0000) knlGS:0000000000000000
T1475;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1475;CR2: 00007ff1aa4e5000 CR3: 000000010d0d3000 CR4: 0000000000f50ef0
T1475;PKRU: 55555554
T1475;Call Trace:
T1475; <TASK>
T1475; ? dcn401_validate_bandwidth+0xd1/0x1f0 [amdgpu]
T1475; ? update_planes_and_stream_state+0xfc7/0x16a0 [amdgpu]
T1475; ? update_planes_and_stream_prepare_v3+0xb6/0x430 [amdgpu]
T1475; ? dc_update_planes_and_stream+0x87/0x140 [amdgpu]
T1475; ? amdgpu_dm_atomic_commit_tail+0x16c0/0x3800 [amdgpu]
T1475; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1475; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1475; ? drm_atomic_commit+0xac/0xe0 [drm]
T1475; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1475; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1475; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1475; ? rt_spin_lock+0x35/0x120
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1475; ? drm_ioctl+0x27f/0x500 [drm]
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0x92/0xe0
T1475; ? do_syscall_64+0xdd/0x5d0
T1475; ? amdgpu_drm_ioctl+0x65/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0xac/0xe0
T1475; ? switch_fpu_return+0x42/0x70
T1475; ? do_syscall_64+0x226/0x5d0
T1475; ? __ext4_journal_stop+0x3a/0xc0 [ext4]
T1475; ? ext4_da_write_end+0x2de/0x340 [ext4]
T1475; ? generic_perform_write+0x131/0x280
T1475; ? up_write+0x29/0x50
T1475; ? psi_group_change+0x112/0x2c0
T1475; ? update_cfs_rq_load_avg+0x1a/0x240
T1475; ? psi_task_switch+0x105/0x280
T1475; ? finish_task_switch.isra.0+0xc2/0x3c0
T1475; ? __schedule+0x374/0x16f0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x94/0x5d0
T1475; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1475; </TASK>
T1475;---[ end trace 0000000000000000 ]---
T1475;------------[ cut here ]------------
T1475;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:97 at dc_fpu_begin+0x4f/0x60 [amdgpu], CPU#23: Xorg/1475
T1475,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib mt7925_common snd_ump mt792x_lib snd_rawmidi intel_rapl_msr snd_seq_device mt76_connac_lib iosf_mbi intel_rapl_common mt76 snd_hda_codec_atihdmi rapl snd_hda_codec_hdmi mac80211 snd_hda_intel pcspkr wmi_bmof snd_hda_codec snd_hda_core snd_intel_dspcfg snd_hwdep snd_pcm libarc4 spd5118 snd_timer cfg80211 regmap_i2c snd soundcore rfkill aead evdev ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid drm_client_lib i2c_algo_bit hid drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring i2c_piix4 gpio_amdpt usb_common nvme_auth wmi
T1475,ncfrag=955/979; i2c_smbus gpio_generic
T1475;CPU: 23 UID: 0 PID: 1475 Comm: Xorg Tainted: G        W           7.2.0-rc4-stable #16 PREEMPT_{RT,(full)} 
T1475;Tainted: [W]=WARN
T1475;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1475;RIP: 0010:dc_fpu_begin+0x4f/0x60 [amdgpu]
T1475;Code: d0 75 27 65 ff 05 c1 cf 15 c7 b8 01 00 00 00 65 0f c1 05 84 df 16 c7 85 c0 74 05 c3 cc cc cc cc bf 02 00 00 00 e9 51 96 12 c6 <0f> 0b eb d5 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 b8
T1475;RSP: 0018:ffffb6c2059d7448 EFLAGS: 00010206
T1475;RAX: 0000000000ff0000 RBX: ffff9e1721c00000 RCX: ffff9e1703380000
T1475;RDX: 0000000000ff0000 RSI: 000000000000073d RDI: ffffffffc13b3520
T1475;RBP: 0000000000000001 R08: ffffb6c2059d741c R09: 000000000000000a
T1475;R10: ffffb6c2059d73c0 R11: 0000000000000002 R12: ffff9e16cc280000
T1475;R13: ffff9e16c14f7000 R14: ffff9e1a61f00000 R15: ffff9e1721c00000
T1475;FS:  00007fbc7ca7eb80(0000) GS:ffff9e2675d35000(0000) knlGS:0000000000000000
T1475;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1475;CR2: 0000557a0c9a9cc8 CR3: 000000010d0d3000 CR4: 0000000000f50ef0
T1475;PKRU: 55555554
T1475;Call Trace:
T1475; <TASK>
T1475; ? dcn401_prepare_mcache_programming+0x2f/0x70 [amdgpu]
T1475; ? commit_planes_for_stream+0x155/0x1900 [amdgpu]
T1475; ? update_planes_and_stream_execute_v3+0x3c/0xd0 [amdgpu]
T1475; ? dc_update_planes_and_stream+0xb6/0x140 [amdgpu]
T1475; ? amdgpu_dm_atomic_commit_tail+0x16c0/0x3800 [amdgpu]
T1475; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1475; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1475; ? drm_atomic_commit+0xac/0xe0 [drm]
T1475; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1475; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1475; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1475; ? rt_spin_lock+0x35/0x120
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1475; ? drm_ioctl+0x27f/0x500 [drm]
T1475; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1475; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0x92/0xe0
T1475; ? do_syscall_64+0xdd/0x5d0
T1475; ? amdgpu_drm_ioctl+0x65/0x80 [amdgpu]
T1475; ? __x64_sys_ioctl+0xac/0xe0
T1475; ? switch_fpu_return+0x42/0x70
T1475; ? do_syscall_64+0x226/0x5d0
T1475; ? __ext4_journal_stop+0x3a/0xc0 [ext4]
T1475; ? ext4_da_write_end+0x2de/0x340 [ext4]
T1475; ? generic_perform_write+0x131/0x280
T1475; ? up_write+0x29/0x50
T1475; ? psi_group_change+0x112/0x2c0
T1475; ? update_cfs_rq_load_avg+0x1a/0x240
T1475; ? psi_task_switch+0x105/0x280
T1475; ? finish_task_switch.isra.0+0xc2/0x3c0
T1475; ? __schedule+0x374/0x16f0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x572/0x5d0
T1475; ? do_syscall_64+0x94/0x5d0
T1475; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1475; </TASK>
T1475;---[ end trace 0000000000000000 ]---
T1475;BUG: scheduling while atomic: Xorg/1475/0x00000000
T1475,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e snd_usbmidi_lib mt7925_common snd_ump mt792x_lib snd_rawmidi intel_rapl_msr snd_seq_device mt76_connac_lib iosf_mbi intel_rapl_common mt76 snd_hda_codec_atihdmi rapl snd_hda_codec_hdmi mac80211 snd_hda_intel pcspkr wmi_bmof snd_hda_codec snd_hda_core snd_intel_dspcfg snd_hwdep snd_pcm libarc4 spd5118 snd_timer cfg80211 regmap_i2c snd soundcore rfkill aead evdev ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid drm_client_lib i2c_algo_bit hid drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec nvme_core scsi_common crc16 video nvme_keyring i2c_piix4 gpio_amdpt usb_common nvme_auth wmi
T1475,ncfrag=955/979; i2c_smbus gpio_generic
T1475;CPU: 20 UID: 0 PID: 1475 Comm: Xorg Tainted: G        W           7.2.0-rc4-stable #16 PREEMPT_{RT,(full)} 
T1475;Tainted: [W]=WARN
T1475;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1475;Call Trace:
T1475; <TASK>
T1475; ? dump_stack_lvl+0x4b/0x70

I'll probably try CONFIG_LOCKDEP=y next.

Bert Karwatzki

[Re] kernel panic during shutdown in v7.2-rc{3,4} and next-20260722 with PREEMPT_RT

[Bert Karwatzki]

I was able to gather the panic error message from a failed shutdown via netconsole,
this time the kernel used was v7.2-rc3:

T6298;netconsole: network logging started
T6298;netconsole-setup: Test log message to verify netconsole configuration.
T1575;BUG: scheduling while atomic: Xorg/1575/0x00000003
T1575,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common snd_usbmidi_lib snd_ump mt792x_lib snd_rawmidi mt76_connac_lib snd_seq_device intel_rapl_msr iosf_mbi mt76 intel_rapl_common rapl mac80211 snd_hda_codec_atihdmi snd_hda_codec_hdmi pcspkr wmi_bmof snd_hda_intel snd_hda_codec libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm spd5118 regmap_i2c snd_timer snd rfkill soundcore aead evdev k10temp ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec scsi_common nvme_core crc16 video nvme_keyring gpio_amdpt i2c_piix4 nvme_auth usb_common gpi
T1575,ncfrag=955/979;o_generic i2c_smbus wmi
T1575;CPU: 16 UID: 0 PID: 1575 Comm: Xorg Not tainted 7.2.0-rc3-stable #1255 PREEMPT_{RT,(full)} 
T1575;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1575;Call Trace:
T1575; <TASK>
T1575; ? dump_stack_lvl+0x4b/0x70
T1575; ? __schedule_bug.cold+0x3e/0x4a
T1575; ? __schedule+0xf64/0x16f0
T1575; ? schedule_rtlock+0x15/0x30
T1575; ? rtlock_slowlock_locked+0x30c/0xe50
T1575; ? rt_spin_lock+0xc3/0x120
T1575; ? get_page_from_freelist+0x22e/0x1640
T1575; ? __alloc_frozen_pages_noprof+0x146/0x2b0
T1575; ? ___kmalloc_large_node+0xae/0xd0
T1575; ? __kvmalloc_node_noprof+0x36c/0x580
T1575; ? dc_create_plane_state+0x24/0x80 [amdgpu]
T1575; ? dc_create_plane_state+0x24/0x80 [amdgpu]
T1575; ? dc_state_create_phantom_plane+0x15/0x50 [amdgpu]
T1575; ? dml21_handle_phantom_streams_planes+0x292/0x510 [amdgpu]
T1575; ? dml21_mode_check_and_programming+0x157/0x7e0 [amdgpu]
T1575; ? try_to_wake_up+0x120/0x530
T1575; ? rt_mutex_setprio+0x61/0x340
T1575; ? calculate_plane_rec_in_timing_active+0x142/0x1f0 [amdgpu]
T1575; ? spl_calculate_number_of_taps.constprop.0.isra.0+0x142/0xf00 [amdgpu]
T1575; ? spl_calculate_number_of_taps.constprop.0.isra.0+0xed4/0xf00 [amdgpu]
T1575; ? dcn401_validate_bandwidth+0xb8/0x1f0 [amdgpu]
T1575; ? dc_validate_with_context+0x5ed/0x6b0 [amdgpu]
T1575; ? dc_commit_streams+0x27c/0x4e0 [amdgpu]
T1575; ? amdgpu_dm_atomic_commit_tail+0x61f/0x3650 [amdgpu]
T1575; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1575; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1575; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1575; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1575; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1575; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1575; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1575; ? wait_for_completion_timeout+0x127/0x170
T1575; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1575; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1575; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1575; ? drm_atomic_commit+0xac/0xe0 [drm]
T1575; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1575; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1575; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1575; ? drm_ioctl+0x27f/0x500 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1575; ? __x64_sys_ioctl+0x92/0xe0
T1575; ? do_syscall_64+0xdd/0x5d0
T1575; ? do_syscall_64+0x94/0x5d0
T1575; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1575; </TASK>
T1575;------------[ cut here ]------------
T1575;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:126 at dc_fpu_end+0x36/0x40 [amdgpu], CPU#22: Xorg/1575
T1575,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common snd_usbmidi_lib snd_ump mt792x_lib snd_rawmidi mt76_connac_lib snd_seq_device intel_rapl_msr iosf_mbi mt76 intel_rapl_common rapl mac80211 snd_hda_codec_atihdmi snd_hda_codec_hdmi pcspkr wmi_bmof snd_hda_intel snd_hda_codec libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm spd5118 regmap_i2c snd_timer snd rfkill soundcore aead evdev k10temp ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec scsi_common nvme_core crc16 video nvme_keyring gpio_amdpt i2c_piix4 nvme_auth usb_common gpi
T1575,ncfrag=955/979;o_generic i2c_smbus wmi
T1575;CPU: 22 UID: 0 PID: 1575 Comm: Xorg Tainted: G        W           7.2.0-rc3-stable #1255 PREEMPT_{RT,(full)} 
T1575;Tainted: [W]=WARN
T1575;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1575;RIP: 0010:dc_fpu_end+0x36/0x40 [amdgpu]
T1575;Code: 05 cf e5 16 e6 ff c8 74 10 78 1f 65 ff 0d f2 d5 15 e6 74 0c c3 cc cc cc cc e8 16 9c 12 e5 eb eb e8 6f 10 11 e5 c3 cc cc cc cc <0f> 0b eb dd 66 0f 1f 44 00 00 41 56 41 55 41 54 55 53 48 83 ec 10
T1575;RSP: 0018:ffffa11ac5bfb638 EFLAGS: 00010296
T1575;RAX: 00000000ffffffff RBX: ffff9490f7480000 RCX: 0000000000000008
T1575;RDX: 0000000000000000 RSI: 0000000000000719 RDI: ffffffffc15b3550
T1575;RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
T1575;R10: ffff9490f7480000 R11: 0000000000000002 R12: ffff948e09668000
T1575;R13: ffff948e11400000 R14: 0000000000000000 R15: 0000000000000001
T1575;FS:  00007f2b496ccb80(0000) GS:ffff949d96af5000(0000) knlGS:0000000000000000
T1575;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1575;CR2: 0000557ef27b3000 CR3: 000000011543b000 CR4: 0000000000f50ef0
T1575;PKRU: 55555554
T1575;Call Trace:
T1575; <TASK>
T1575; ? dcn401_validate_bandwidth+0xd1/0x1f0 [amdgpu]
T1575; ? dc_validate_with_context+0x5ed/0x6b0 [amdgpu]
T1575; ? dc_commit_streams+0x27c/0x4e0 [amdgpu]
T1575; ? amdgpu_dm_atomic_commit_tail+0x61f/0x3650 [amdgpu]
T1575; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1575; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1575; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1575; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1575; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1575; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1575; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1575; ? wait_for_completion_timeout+0x127/0x170
T1575; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1575; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1575; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1575; ? drm_atomic_commit+0xac/0xe0 [drm]
T1575; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1575; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1575; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1575; ? drm_ioctl+0x27f/0x500 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1575; ? __x64_sys_ioctl+0x92/0xe0
T1575; ? do_syscall_64+0xdd/0x5d0
T1575; ? do_syscall_64+0x94/0x5d0
T1575; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1575; </TASK>
T1575;---[ end trace 0000000000000000 ]---
T1575;------------[ cut here ]------------
T1575;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:97 at dc_fpu_begin+0x4f/0x60 [amdgpu], CPU#17: Xorg/1575
T1575,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common snd_usbmidi_lib snd_ump mt792x_lib snd_rawmidi mt76_connac_lib snd_seq_device intel_rapl_msr iosf_mbi mt76 intel_rapl_common rapl mac80211 snd_hda_codec_atihdmi snd_hda_codec_hdmi pcspkr wmi_bmof snd_hda_intel snd_hda_codec libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm spd5118 regmap_i2c snd_timer snd rfkill soundcore aead evdev k10temp ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec scsi_common nvme_core crc16 video nvme_keyring gpio_amdpt i2c_piix4 nvme_auth usb_common gpi
T1575,ncfrag=955/979;o_generic i2c_smbus wmi
T1575;CPU: 17 UID: 0 PID: 1575 Comm: Xorg Tainted: G        W           7.2.0-rc3-stable #1255 PREEMPT_{RT,(full)} 
T1575;Tainted: [W]=WARN
T1575;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1575;RIP: 0010:dc_fpu_begin+0x4f/0x60 [amdgpu]
T1575;Code: d0 75 27 65 ff 05 41 d6 15 e6 b8 01 00 00 00 65 0f c1 05 04 e6 16 e6 85 c0 74 05 c3 cc cc cc cc bf 02 00 00 00 e9 d1 9c 12 e5 <0f> 0b eb d5 66 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 b8
T1575;RSP: 0018:ffffa11ac5bfb6c8 EFLAGS: 00010206
T1575;RAX: 0000000000ff0000 RBX: ffff949040380000 RCX: ffff9490a92f96a0
T1575;RDX: 0000000000ff0000 RSI: 000000000000011f RDI: ffffffffc15de7a0
T1575;RBP: ffff948e14700000 R08: ffffffffa6d02440 R09: 0000000000000006
T1575;R10: ffffffffa6eb6440 R11: 0000000000000066 R12: ffff949040380000
T1575;R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
T1575;FS:  00007f2b496ccb80(0000) GS:ffff949d969b5000(0000) knlGS:0000000000000000
T1575;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1575;CR2: 00007fb5ea0bfa7c CR3: 000000011543b000 CR4: 0000000000f50ef0
T1575;PKRU: 55555554
T1575;Call Trace:
T1575; <TASK>
T1575; ? dc_state_create_copy+0x76/0x120 [amdgpu]
T1575; ? dc_commit_state_no_check+0x271/0xe00 [amdgpu]
T1575; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1575; ? amdgpu_dm_atomic_commit_tail+0x61f/0x3650 [amdgpu]
T1575; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1575; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1575; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1575; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1575; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1575; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1575; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1575; ? wait_for_completion_timeout+0x127/0x170
T1575; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1575; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1575; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1575; ? drm_atomic_commit+0xac/0xe0 [drm]
T1575; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1575; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1575; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1575; ? drm_ioctl+0x27f/0x500 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1575; ? __x64_sys_ioctl+0x92/0xe0
T1575; ? do_syscall_64+0xdd/0x5d0
T1575; ? do_syscall_64+0x94/0x5d0
T1575; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1575; </TASK>
T1575;---[ end trace 0000000000000000 ]---
T1575;------------[ cut here ]------------
T1575;kernel BUG at mm/vmalloc.c:3206!
T1575;Oops: invalid opcode: 0000 [#1] SMP NOPTI
T1575;CPU: 17 UID: 0 PID: 1575 Comm: Xorg Tainted: G        W           7.2.0-rc3-stable #1255 PREEMPT_{RT,(full)} 
T1575;Tainted: [W]=WARN
T1575;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1575;RIP: 0010:__get_vm_area_node+0x113/0x130
T1575;Code: ff bd ff ff ff ff 48 0f bd e8 b8 0c 00 00 00 ff c5 39 c5 0f 4c e8 b8 1e 00 00 00 39 c5 0f 4f e8 c4 e2 d1 f7 ee e9 34 ff ff ff <0f> 0b 4c 89 ef e8 e3 46 01 00 45 31 ed eb ae 0f 1f 00 66 66 2e 0f
T1575;RSP: 0018:ffffa11ac5bfb580 EFLAGS: 00010286
T1575;RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000022
T1575;RDX: 000000000000000c RSI: 0000000000000001 RDI: 000000000000f720
T1575;RBP: 000000000000000c R08: ffffa11ac0000000 R09: ffffc11abfffffff
T1575;R10: 00000000ffffffff R11: 0000000000000066 R12: ffff949040380000
T1575;R13: 0000000000000001 R14: 0000000000000dc0 R15: 000000000000f720
T1575;FS:  00007f2b496ccb80(0000) GS:ffff949d969b5000(0000) knlGS:0000000000000000
T1575;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1575;CR2: 00007fb5ea0bfa7c CR3: 000000011543b000 CR4: 0000000000f50ef0
T1575;PKRU: 55555554
T1575;Call Trace:
T1575; <TASK>
T1575; ? __vmalloc_node_range_noprof+0x14a/0x920
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dc_fpu_begin+0x51/0x60 [amdgpu]
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? asm_exc_invalid_op+0x1a/0x20
T1575; ? __vmalloc_node_noprof+0x47/0x60
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dml21_create_copy+0x16/0x40 [amdgpu]
T1575; ? dc_state_create_copy+0x89/0x120 [amdgpu]
T1575; ? dc_commit_state_no_check+0x271/0xe00 [amdgpu]
T1575; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1575; ? amdgpu_dm_atomic_commit_tail+0x61f/0x3650 [amdgpu]
T1575; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1575; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1575; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1575; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1575; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1575; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1575; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1575; ? wait_for_completion_timeout+0x127/0x170
T1575; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1575; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1575; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1575; ? drm_atomic_commit+0xac/0xe0 [drm]
T1575; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1575; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1575; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1575; ? drm_ioctl+0x27f/0x500 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1575; ? __x64_sys_ioctl+0x92/0xe0
T1575; ? do_syscall_64+0xdd/0x5d0
T1575; ? do_syscall_64+0x94/0x5d0
T1575; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1575; </TASK>
T1575,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common snd_usbmidi_lib snd_ump mt792x_lib snd_rawmidi mt76_connac_lib snd_seq_device intel_rapl_msr iosf_mbi mt76 intel_rapl_common rapl mac80211 snd_hda_codec_atihdmi snd_hda_codec_hdmi pcspkr wmi_bmof snd_hda_intel snd_hda_codec libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm spd5118 regmap_i2c snd_timer snd rfkill soundcore aead evdev k10temp ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec scsi_common nvme_core crc16 video nvme_keyring gpio_amdpt i2c_piix4 nvme_auth usb_common gpi
T1575,ncfrag=955/979;o_generic i2c_smbus wmi
T1575;---[ end trace 0000000000000000 ]---
T1575;------------[ cut here ]------------
T1575;WARNING: kernel/printk/nbcon.c:1739 at nbcon_cpu_emergency_exit+0x85/0xa0, CPU#23: Xorg/1575
T1575,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common snd_usbmidi_lib snd_ump mt792x_lib snd_rawmidi mt76_connac_lib snd_seq_device intel_rapl_msr iosf_mbi mt76 intel_rapl_common rapl mac80211 snd_hda_codec_atihdmi snd_hda_codec_hdmi pcspkr wmi_bmof snd_hda_intel snd_hda_codec libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm spd5118 regmap_i2c snd_timer snd rfkill soundcore aead evdev k10temp ccp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic usbhid hid drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm drm_exec drm_suballoc_helper mfd_core drm_panel_backlight_quirks gpu_sched amdxcp drm_display_helper ahci libahci xhci_pci libata xhci_hcd drm_kms_helper drm scsi_mod igc nvme usbcore cec scsi_common nvme_core crc16 video nvme_keyring gpio_amdpt i2c_piix4 nvme_auth usb_common gpi
T1575,ncfrag=955/979;o_generic i2c_smbus wmi
T1575;CPU: 23 UID: 0 PID: 1575 Comm: Xorg Tainted: G      D W           7.2.0-rc3-stable #1255 PREEMPT_{RT,(full)} 
T1575;Tainted: [D]=DIE, [W]=WARN
T1575;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1575;RIP: 0010:nbcon_cpu_emergency_exit+0x85/0xa0
T1575;Code: 75 38 48 83 c4 10 c3 cc cc cc cc 48 8d 7c 24 04 e8 e0 ef ff ff 80 7c 24 05 00 74 ce e8 74 fc ff ff eb c7 e8 8d 67 f2 ff eb c9 <0f> 0b 8b 05 43 6a fc 00 85 c0 75 a2 0f 0b eb b0 e8 16 15 8b 00 66
T1575;RSP: 0018:ffffa11ac5bfb3f8 EFLAGS: 00010246
T1575;RAX: 0000000000000000 RBX: 000000000000000b RCX: 0000000000000000
T1575;RDX: ffff949d3d9db204 RSI: 0000000000000001 RDI: ffff949d3d9db040
T1575;RBP: 0000000000000246 R08: 0000000000000000 R09: 3fffffffffffdfff
T1575;R10: ffffffffa6ed4e20 R11: ffffa11ac5bfb200 R12: ffffa11ac5bfb4d8
T1575;R13: ffffffffa60d2ad3 R14: 0000000000000002 R15: 0000000000000004
T1575;FS:  00007f2b496ccb80(0000) GS:ffff949d96b35000(0000) knlGS:0000000000000000
T1575;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1575;CR2: 0000557ef2780ef8 CR3: 000000011543b000 CR4: 0000000000f50ef0
T1575;PKRU: 55555554
T1575;Call Trace:
T1575; <TASK>
T1575; ? oops_exit.cold+0x13/0x1f
T1575; ? oops_end+0x66/0xe0
T1575; ? do_trap+0xc5/0x110
T1575; ? do_error_trap+0x60/0x80
T1575; ? __get_vm_area_node+0x113/0x130
T1575; ? exc_invalid_op+0x4f/0x70
T1575; ? __get_vm_area_node+0x113/0x130
T1575; ? asm_exc_invalid_op+0x1a/0x20
T1575; ? __get_vm_area_node+0x113/0x130
T1575; ? __vmalloc_node_range_noprof+0x14a/0x920
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dc_fpu_begin+0x51/0x60 [amdgpu]
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? asm_exc_invalid_op+0x1a/0x20
T1575; ? __vmalloc_node_noprof+0x47/0x60
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1575; ? dml21_create_copy+0x16/0x40 [amdgpu]
T1575; ? dc_state_create_copy+0x89/0x120 [amdgpu]
T1575; ? dc_commit_state_no_check+0x271/0xe00 [amdgpu]
T1575; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1575; ? amdgpu_dm_atomic_commit_tail+0x61f/0x3650 [amdgpu]
T1575; ? generic_reg_get+0x1c/0x30 [amdgpu]
T1575; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1575; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1575; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1575; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1575; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1575; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x180/0x3b0 [drm]
T1575; ? wait_for_completion_timeout+0x127/0x170
T1575; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1575; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1575; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1575; ? drm_atomic_commit+0xac/0xe0 [drm]
T1575; ? __drm_universal_plane_init.cold+0x11/0x11 [drm]
T1575; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1575; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1575; ? drm_ioctl+0x27f/0x500 [drm]
T1575; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1575; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1575; ? __x64_sys_ioctl+0x92/0xe0
T1575; ? do_syscall_64+0xdd/0x5d0
T1575; ? do_syscall_64+0x94/0x5d0
T1575; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1575; </TASK>
T1575;---[ end trace 0000000000000000 ]---
C23;RIP: 0010:__get_vm_area_node+0x113/0x130
C5;Code: ff bd ff ff ff ff 48 0f bd e8 b8 0c 00 00 00 ff c5 39 c5 0f 4c e8 b8 1e 00 00 00 39 c5 0f 4f e8 c4 e2 d1 f7 ee e9 34 ff ff ff <0f> 0b 4c 89 ef e8 e3 46 01 00 45 31 ed eb ae 0f 1f 00 66 66 2e 0f
C5;RSP: 0018:ffffa11ac5bfb580 EFLAGS: 00010286
C5;RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000022
C5;RDX: 000000000000000c RSI: 0000000000000001 RDI: 000000000000f720
C5;RBP: 000000000000000c R08: ffffa11ac0000000 R09: ffffc11abfffffff
C5;R10: 00000000ffffffff R11: 0000000000000066 R12: ffff949040380000
C5;R13: 0000000000000001 R14: 0000000000000dc0 R15: 000000000000f720
C5;FS:  00007f2b496ccb80(0000) GS:ffff949d966b5000(0000) knlGS:0000000000000000
C5;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
C5;CR2: 00007f17b8093940 CR3: 000000011543b000 CR4: 0000000000f50ef0
C5;PKRU: 55555554
T1575;Kernel panic - not syncing: Fatal exception in interrupt
T1575;Kernel Offset: 0x24c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
T1575;---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---


Bert Karwatzki

Re: [Re] kernel panic during shutdown in v7.2-rc{3,4} and next-20260722 with PREEMPT_RT

[Bert Karwatzki]

Am Donnerstag, dem 23.07.2026 um 15:10 +0200 schrieb Bert Karwatzki:
> I was able to gather the panic error message from a failed shutdown via netconsole,
> this time the kernel used was v7.2-rc3:
> #
> Bert Karwatzki

Unfortunatetly I can now reproduce these kernel panics in v7.1:

T1581;BUG: scheduling while atomic: Xorg/1581/0x00000003
T1581,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common
snd_usbmidi_lib mt792x_lib snd_ump mt76_connac_lib snd_rawmidi mt76 snd_seq_device intel_rapl_msr iosf_mbi intel_rapl_common snd_hda_codec_atihdmi mac80211 rapl
wmi_bmof snd_hda_codec_hdmi snd_hda_intel snd_hda_codec pcspkr libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm snd_timer snd rfkill soundcore
aead evdev spd5118 regmap_i2c ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic
drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm usbhid drm_exec drm_suballoc_helper mfd_core hid drm_panel_backlight_quirks gpu_sched amdxcp
drm_display_helper drm_kms_helper ahci libahci xhci_pci drm libata xhci_hcd nvme scsi_mod usbcore igc nvme_core video cec scsi_common nvme_keyring crc16
nvme_auth i2c_piix4 gpio_amdpt usb_common i2c
T1581,ncfrag=955/979;_smbus gpio_generic wmi
T1581;CPU: 19 UID: 0 PID: 1581 Comm: Xorg Not tainted 7.1.0-stable #1241 PREEMPT_{RT,(full)} 
T1581;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1581;Call Trace:
T1581; <TASK>
T1581; ? dump_stack_lvl+0x4b/0x70
T1581; ? __schedule_bug.cold+0x3e/0x4a
T1581; ? __schedule+0xf6f/0x1700
T1581; ? try_to_take_rt_mutex+0x191/0x300
T1581; ? rtlock_slowlock_locked+0x39/0xe50
T1581; ? schedule_rtlock+0x15/0x30
T1581; ? rtlock_slowlock_locked+0x30b/0xe50
T1581; ? rt_spin_lock+0xc3/0x120
T1581; ? get_page_from_freelist+0x221/0x15f0
T1581; ? dc_link_get_highest_encoding_format+0x61/0xb0 [amdgpu]
T1581; ? __alloc_frozen_pages_noprof+0x146/0x2b0
T1581; ? ___kmalloc_large_node+0xae/0xd0
T1581; ? __kvmalloc_node_noprof+0x398/0x540
T1581; ? dcn401_build_pipe_pix_clk_params+0x10a/0x1f0 [amdgpu]
T1581; ? dc_create_plane_state+0x24/0x80 [amdgpu]
T1581; ? dc_state_create_phantom_plane+0x15/0x50 [amdgpu]
T1581; ? dml21_handle_phantom_streams_planes+0x292/0x510 [amdgpu]
T1581; ? dml21_mode_check_and_programming+0x157/0x7e0 [amdgpu]
T1581; ? sysvec_call_function_single+0xe/0x80
T1581; ? asm_sysvec_call_function_single+0x1a/0x20
T1581; ? try_to_take_rt_mutex+0x191/0x300
T1581; ? calculate_plane_rec_in_timing_active+0x142/0x1f0 [amdgpu]
T1581; ? spl_calculate_number_of_taps.constprop.0.isra.0+0x142/0xf00 [amdgpu]
T1581; ? spl_calculate_number_of_taps.constprop.0.isra.0+0xed4/0xf00 [amdgpu]
T1581; ? dcn401_validate_bandwidth+0xb8/0x1f0 [amdgpu]
T1581; ? dc_validate_with_context+0x5cf/0x6b0 [amdgpu]
T1581; ? dc_commit_streams+0x27c/0x4e0 [amdgpu]
T1581; ? amdgpu_dm_atomic_commit_tail+0x4ec/0x3610 [amdgpu]
T1581; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1581; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1581; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1581; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1581; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1581; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x176/0x3a0 [drm]
T1581; ? wait_for_completion_timeout+0x127/0x170
T1581; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1581; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1581; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1581; ? drm_atomic_commit+0xac/0xe0 [drm]
T1581; ? __drm_universal_plane_init.cold+0x12/0x12 [drm]
T1581; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1581; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1581; ? __schedule+0x389/0x1700
T1581; ? rt_spin_lock+0x35/0x120
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1581; ? drm_ioctl+0x27f/0x520 [drm]
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1581; ? __x64_sys_ioctl+0x92/0xe0
T1581; ? do_syscall_64+0xdd/0x5d0
T1581; ? switch_fpu_return+0x42/0x70
T1581; ? handle_irq_event+0x4c/0x80
T1581; ? do_syscall_64+0x94/0x5d0
T1581; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1581; </TASK>
T1581;------------[ cut here ]------------
T1581;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:126 at dc_fpu_end+0x36/0x40 [amdgpu], CPU#20: Xorg/1581
T1581,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common
snd_usbmidi_lib mt792x_lib snd_ump mt76_connac_lib snd_rawmidi mt76 snd_seq_device intel_rapl_msr iosf_mbi intel_rapl_common snd_hda_codec_atihdmi mac80211 rapl
wmi_bmof snd_hda_codec_hdmi snd_hda_intel snd_hda_codec pcspkr libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm snd_timer snd rfkill soundcore
aead evdev spd5118 regmap_i2c ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic
drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm usbhid drm_exec drm_suballoc_helper mfd_core hid drm_panel_backlight_quirks gpu_sched amdxcp
drm_display_helper drm_kms_helper ahci libahci xhci_pci drm libata xhci_hcd nvme scsi_mod usbcore igc nvme_core video cec scsi_common nvme_keyring crc16
nvme_auth i2c_piix4 gpio_amdpt usb_common i2c
T1581,ncfrag=955/979;_smbus gpio_generic wmi
T1581;CPU: 20 UID: 0 PID: 1581 Comm: Xorg Tainted: G        W           7.1.0-stable #1241 PREEMPT_{RT,(full)} 
T1581;Tainted: [W]=WARN
T1581;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1581;RIP: 0010:dc_fpu_end+0x36/0x40 [amdgpu]
T1581;Code: 05 0f 2b f7 d6 ff c8 74 10 78 1f 65 ff 0d 32 1b f6 d6 74 0c c3 cc cc cc cc e8 96 f7 f2 d5 eb eb e8 4f 65 f1 d5 c3 cc cc cc cc <0f> 0b eb dd 66 0f 1f
44 00 00 41 56 41 55 41 54 55 53 48 83 ec 10
T1581;RSP: 0018:ffff9d3305d835b8 EFLAGS: 00010296
T1581;RAX: 00000000ffffffff RBX: ffff8face4600000 RCX: 0000000000000008
T1581;RDX: 0000000000000000 RSI: 00000000000006a4 RDI: ffffffffc15999d0
T1581;RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
T1581;R10: ffff8face4600000 R11: 0000000000000002 R12: ffff8fac0d6c0000
T1581;R13: ffff8faca1000000 R14: 0000000000000000 R15: ffff8faca1000000
T1581;FS:  00007ff40af34b80(0000) GS:ffff8fbba5c76000(0000) knlGS:0000000000000000
T1581;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1581;CR2: 0000559cb13d5018 CR3: 0000000120bd9000 CR4: 0000000000f50ef0
T1581;PKRU: 55555554
T1581;Call Trace:
T1581; <TASK>
T1581; ? dcn401_validate_bandwidth+0xd1/0x1f0 [amdgpu]
T1581; ? dc_validate_with_context+0x5cf/0x6b0 [amdgpu]
T1581; ? dc_commit_streams+0x27c/0x4e0 [amdgpu]
T1581; ? amdgpu_dm_atomic_commit_tail+0x4ec/0x3610 [amdgpu]
T1581; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1581; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1581; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1581; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1581; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1581; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x176/0x3a0 [drm]
T1581; ? wait_for_completion_timeout+0x127/0x170
T1581; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1581; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1581; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1581; ? drm_atomic_commit+0xac/0xe0 [drm]
T1581; ? __drm_universal_plane_init.cold+0x12/0x12 [drm]
T1581; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1581; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1581; ? __schedule+0x389/0x1700
T1581; ? rt_spin_lock+0x35/0x120
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1581; ? drm_ioctl+0x27f/0x520 [drm]
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1581; ? __x64_sys_ioctl+0x92/0xe0
T1581; ? do_syscall_64+0xdd/0x5d0
T1581; ? switch_fpu_return+0x42/0x70
T1581; ? handle_irq_event+0x4c/0x80
T1581; ? do_syscall_64+0x94/0x5d0
T1581; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1581; </TASK>
T1581;---[ end trace 0000000000000000 ]---
T1581;------------[ cut here ]------------
T1581;WARNING: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c:97 at dc_fpu_begin+0x4f/0x60 [amdgpu], CPU#1: Xorg/1581
T1581,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common
snd_usbmidi_lib mt792x_lib snd_ump mt76_connac_lib snd_rawmidi mt76 snd_seq_device intel_rapl_msr iosf_mbi intel_rapl_common snd_hda_codec_atihdmi mac80211 rapl
wmi_bmof snd_hda_codec_hdmi snd_hda_intel snd_hda_codec pcspkr libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm snd_timer snd rfkill soundcore
aead evdev spd5118 regmap_i2c ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic
drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm usbhid drm_exec drm_suballoc_helper mfd_core hid drm_panel_backlight_quirks gpu_sched amdxcp
drm_display_helper drm_kms_helper ahci libahci xhci_pci drm libata xhci_hcd nvme scsi_mod usbcore igc nvme_core video cec scsi_common nvme_keyring crc16
nvme_auth i2c_piix4 gpio_amdpt usb_common i2c
T1581,ncfrag=955/979;_smbus gpio_generic wmi
T1581;CPU: 1 UID: 0 PID: 1581 Comm: Xorg Tainted: G        W           7.1.0-stable #1241 PREEMPT_{RT,(full)} 
T1581;Tainted: [W]=WARN
T1581;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1581;RIP: 0010:dc_fpu_begin+0x4f/0x60 [amdgpu]
T1581;Code: d0 75 27 65 ff 05 81 1b f6 d6 b8 01 00 00 00 65 0f c1 05 44 2b f7 d6 85 c0 74 05 c3 cc cc cc cc bf 02 00 00 00 e9 51 f8 f2 d5 <0f> 0b eb d5 66 90 66
66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 b8
T1581;RSP: 0018:ffff9d3305d83640 EFLAGS: 00010206
T1581;RAX: 0000000000ff0000 RBX: ffff8fad48480000 RCX: ffff8face86d3e28
T1581;RDX: 0000000000ff0000 RSI: 000000000000011f RDI: ffffffffc15bcda0
T1581;RBP: ffff8fad65380000 R08: ffffffff97b01fc0 R09: 0000000000000006
T1581;R10: ffffffff97cb5440 R11: 0000000000000076 R12: ffff8fad48480000
T1581;R13: 0000000000000001 R14: ffff8faca1000000 R15: 0000000000000000
T1581;FS:  00007ff40af34b80(0000) GS:ffff8fbba57b6000(0000) knlGS:0000000000000000
T1581;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1581;CR2: 00007f593eec2478 CR3: 0000000120bd9000 CR4: 0000000000f50ef0
T1581;PKRU: 55555554
T1581;Call Trace:
T1581; <TASK>
T1581; ? dc_state_create_copy+0x76/0x120 [amdgpu]
T1581; ? dc_commit_state_no_check+0x271/0xde0 [amdgpu]
T1581; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1581; ? amdgpu_dm_atomic_commit_tail+0x4ec/0x3610 [amdgpu]
T1581; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1581; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1581; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1581; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1581; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1581; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x176/0x3a0 [drm]
T1581; ? wait_for_completion_timeout+0x127/0x170
T1581; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1581; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1581; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1581; ? drm_atomic_commit+0xac/0xe0 [drm]
T1581; ? __drm_universal_plane_init.cold+0x12/0x12 [drm]
T1581; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1581; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1581; ? __schedule+0x389/0x1700
T1581; ? rt_spin_lock+0x35/0x120
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1581; ? drm_ioctl+0x27f/0x520 [drm]
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1581; ? __x64_sys_ioctl+0x92/0xe0
T1581; ? do_syscall_64+0xdd/0x5d0
T1581; ? switch_fpu_return+0x42/0x70
T1581; ? handle_irq_event+0x4c/0x80
T1581; ? do_syscall_64+0x94/0x5d0
T1581; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1581; </TASK>
T1581;---[ end trace 0000000000000000 ]---
T1581;------------[ cut here ]------------
T1581;kernel BUG at mm/vmalloc.c:3206!
T1581;Oops: invalid opcode: 0000 [#1] SMP NOPTI
T1581;CPU: 29 UID: 0 PID: 1581 Comm: Xorg Tainted: G        W           7.1.0-stable #1241 PREEMPT_{RT,(full)} 
T1581;Tainted: [W]=WARN
T1581;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1581;RIP: 0010:__get_vm_area_node+0x113/0x130
T1581;Code: ff bd ff ff ff ff 48 0f bd e8 b8 0c 00 00 00 ff c5 39 c5 0f 4c e8 b8 1e 00 00 00 39 c5 0f 4f e8 c4 e2 d1 f7 ee e9 34 ff ff ff <0f> 0b 4c 89 ef e8 23
51 01 00 45 31 ed eb ae 0f 1f 00 66 66 2e 0f
T1581;RSP: 0018:ffff9d3305d834f8 EFLAGS: 00010286
T1581;RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000022
T1581;RDX: 000000000000000c RSI: 0000000000000001 RDI: 000000000000f720
T1581;RBP: 000000000000000c R08: ffff9d3300000000 R09: ffffbd32ffffffff
T1581;R10: 00000000ffffffff R11: 0000000000000076 R12: ffff8fad48480000
T1581;R13: 0000000000000001 R14: 0000000000000dc0 R15: 000000000000f720
T1581;FS:  00007ff40af34b80(0000) GS:ffff8fbba5eb6000(0000) knlGS:0000000000000000
T1581;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1581;CR2: 00007f6ae0f90110 CR3: 0000000120bd9000 CR4: 0000000000f50ef0
T1581;PKRU: 55555554
T1581;Call Trace:
T1581; <TASK>
T1581; ? __vmalloc_node_range_noprof+0x14a/0x920
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? exc_invalid_op+0x18/0x70
T1581; ? __vmalloc_node_noprof+0x47/0x60
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_create_copy+0x16/0x40 [amdgpu]
T1581; ? dc_state_create_copy+0x89/0x120 [amdgpu]
T1581; ? dc_commit_state_no_check+0x271/0xde0 [amdgpu]
T1581; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1581; ? amdgpu_dm_atomic_commit_tail+0x4ec/0x3610 [amdgpu]
T1581; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1581; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1581; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1581; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1581; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1581; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x176/0x3a0 [drm]
T1581; ? wait_for_completion_timeout+0x127/0x170
T1581; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1581; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1581; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1581; ? drm_atomic_commit+0xac/0xe0 [drm]
T1581; ? __drm_universal_plane_init.cold+0x12/0x12 [drm]
T1581; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1581; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1581; ? __schedule+0x389/0x1700
T1581; ? rt_spin_lock+0x35/0x120
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1581; ? drm_ioctl+0x27f/0x520 [drm]
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1581; ? __x64_sys_ioctl+0x92/0xe0
T1581; ? do_syscall_64+0xdd/0x5d0
T1581; ? switch_fpu_return+0x42/0x70
T1581; ? handle_irq_event+0x4c/0x80
T1581; ? do_syscall_64+0x94/0x5d0
T1581; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1581; </TASK>
T1581,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common
snd_usbmidi_lib mt792x_lib snd_ump mt76_connac_lib snd_rawmidi mt76 snd_seq_device intel_rapl_msr iosf_mbi intel_rapl_common snd_hda_codec_atihdmi mac80211 rapl
wmi_bmof snd_hda_codec_hdmi snd_hda_intel snd_hda_codec pcspkr libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm snd_timer snd rfkill soundcore
aead evdev spd5118 regmap_i2c ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic
drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm usbhid drm_exec drm_suballoc_helper mfd_core hid drm_panel_backlight_quirks gpu_sched amdxcp
drm_display_helper drm_kms_helper ahci libahci xhci_pci drm libata xhci_hcd nvme scsi_mod usbcore igc nvme_core video cec scsi_common nvme_keyring crc16
nvme_auth i2c_piix4 gpio_amdpt usb_common i2c
T1581,ncfrag=955/979;_smbus gpio_generic wmi
T1581;---[ end trace 0000000000000000 ]---
T1581;------------[ cut here ]------------
T1581;WARNING: kernel/printk/nbcon.c:1739 at nbcon_cpu_emergency_exit+0x85/0xa0, CPU#26: Xorg/1581
T1581,ncfrag=0/979;Modules linked in: netconsole ccm snd_seq_dummy snd_hrtimer snd_seq nls_ascii nls_cp437 vfat fat joydev snd_usb_audio mt7925e mt7925_common
snd_usbmidi_lib mt792x_lib snd_ump mt76_connac_lib snd_rawmidi mt76 snd_seq_device intel_rapl_msr iosf_mbi intel_rapl_common snd_hda_codec_atihdmi mac80211 rapl
wmi_bmof snd_hda_codec_hdmi snd_hda_intel snd_hda_codec pcspkr libarc4 snd_hda_core cfg80211 snd_intel_dspcfg snd_hwdep snd_pcm snd_timer snd rfkill soundcore
aead evdev spd5118 regmap_i2c ccp k10temp nct6775 nct6775_core hwmon_vid configfs efi_pstore efivarfs autofs4 ext4 mbcache jbd2 amdgpu hid_generic
drm_client_lib i2c_algo_bit drm_buddy drm_ttm_helper ttm usbhid drm_exec drm_suballoc_helper mfd_core hid drm_panel_backlight_quirks gpu_sched amdxcp
drm_display_helper drm_kms_helper ahci libahci xhci_pci drm libata xhci_hcd nvme scsi_mod usbcore igc nvme_core video cec scsi_common nvme_keyring crc16
nvme_auth i2c_piix4 gpio_amdpt usb_common i2c
T1581,ncfrag=955/979;_smbus gpio_generic wmi
T1581;CPU: 26 UID: 0 PID: 1581 Comm: Xorg Tainted: G      D W           7.1.0-stable #1241 PREEMPT_{RT,(full)} 
T1581;Tainted: [D]=DIE, [W]=WARN
T1581;Hardware name: ASUS System Product Name/ROG STRIX B850-F GAMING WIFI, BIOS 1627 02/05/2026
T1581;RIP: 0010:nbcon_cpu_emergency_exit+0x85/0xa0
T1581;Code: 75 38 48 83 c4 10 c3 cc cc cc cc 48 8d 7c 24 04 e8 e0 ef ff ff 80 7c 24 05 00 74 ce e8 74 fc ff ff eb c7 e8 0d 86 f2 ff eb c9 <0f> 0b 8b 05 c3 78 fc
00 85 c0 75 a2 0f 0b eb b0 e8 46 01 8a 00 66
T1581;RSP: 0018:ffff9d3305d83368 EFLAGS: 00010246
T1581;RAX: 0000000000000000 RBX: 000000000000000b RCX: 0000000000000000
T1581;RDX: ffff8fbb3da9b3c4 RSI: 0000000000000001 RDI: ffff8fbb3da9b200
T1581;RBP: 0000000000000246 R08: 0000000000000000 R09: 3fffffffffffdfff
T1581;R10: ffffffff97cd3dc0 R11: ffff9d3305d83170 R12: ffff9d3305d83448
T1581;R13: ffffffff96ec5913 R14: 0000000000000002 R15: 0000000000000004
T1581;FS:  00007ff40af34b80(0000) GS:ffff8fbba5df6000(0000) knlGS:0000000000000000
T1581;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
T1581;CR2: 00007f4d92ce39d0 CR3: 0000000120bd9000 CR4: 0000000000f50ef0
T1581;PKRU: 55555554
T1581;Call Trace:
T1581; <TASK>
T1581; ? oops_exit.cold+0x13/0x1f
T1581; ? oops_end+0x66/0xe0
T1581; ? do_trap+0xc5/0x110
T1581; ? do_error_trap+0x60/0x80
T1581; ? __get_vm_area_node+0x113/0x130
T1581; ? exc_invalid_op+0x4f/0x70
T1581; ? __get_vm_area_node+0x113/0x130
T1581; ? asm_exc_invalid_op+0x1a/0x20
T1581; ? __get_vm_area_node+0x113/0x130
T1581; ? __vmalloc_node_range_noprof+0x14a/0x920
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? exc_invalid_op+0x18/0x70
T1581; ? __vmalloc_node_noprof+0x47/0x60
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_allocate_memory+0x124/0x180 [amdgpu]
T1581; ? dml21_create_copy+0x16/0x40 [amdgpu]
T1581; ? dc_state_create_copy+0x89/0x120 [amdgpu]
T1581; ? dc_commit_state_no_check+0x271/0xde0 [amdgpu]
T1581; ? dc_commit_streams+0x2f4/0x4e0 [amdgpu]
T1581; ? amdgpu_dm_atomic_commit_tail+0x4ec/0x3610 [amdgpu]
T1581; ? optc1_get_crtc_scanoutpos+0x5f/0xa0 [amdgpu]
T1581; ? dc_stream_get_scanoutpos+0x7a/0xc0 [amdgpu]
T1581; ? amdgpu_display_get_crtc_scanoutpos+0xa5/0x1c0 [amdgpu]
T1581; ? amdgpu_display_crtc_idx_to_irq_type+0x30/0x30 [amdgpu]
T1581; ? amdgpu_crtc_get_scanout_position+0x23/0x30 [amdgpu]
T1581; ? drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x176/0x3a0 [drm]
T1581; ? wait_for_completion_timeout+0x127/0x170
T1581; ? drm_crtc_get_last_vbltimestamp+0x50/0x80 [drm]
T1581; ? commit_tail+0xad/0x140 [drm_kms_helper]
T1581; ? drm_atomic_helper_commit+0x137/0x180 [drm_kms_helper]
T1581; ? drm_atomic_commit+0xac/0xe0 [drm]
T1581; ? __drm_universal_plane_init.cold+0x12/0x12 [drm]
T1581; ? drm_atomic_helper_set_config+0x6f/0xb0 [drm_kms_helper]
T1581; ? drm_mode_setcrtc+0x443/0x8b0 [drm]
T1581; ? __schedule+0x389/0x1700
T1581; ? rt_spin_lock+0x35/0x120
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? drm_ioctl_kernel+0xa1/0xf0 [drm]
T1581; ? drm_ioctl+0x27f/0x520 [drm]
T1581; ? drm_mode_getcrtc+0x180/0x180 [drm]
T1581; ? amdgpu_drm_ioctl+0x45/0x80 [amdgpu]
T1581; ? __x64_sys_ioctl+0x92/0xe0
T1581; ? do_syscall_64+0xdd/0x5d0
T1581; ? switch_fpu_return+0x42/0x70
T1581; ? handle_irq_event+0x4c/0x80
T1581; ? do_syscall_64+0x94/0x5d0
T1581; ? entry_SYSCALL_64_after_hwframe+0x55/0x5d
T1581; </TASK>
T1581;---[ end trace 0000000000000000 ]---
C19;RIP: 0010:__get_vm_area_node+0x113/0x130
C28;Code: ff bd ff ff ff ff 48 0f bd e8 b8 0c 00 00 00 ff c5 39 c5 0f 4c e8 b8 1e 00 00 00 39 c5 0f 4f e8 c4 e2 d1 f7 ee e9 34 ff ff ff <0f> 0b 4c 89 ef e8 23
51 01 00 45 31 ed eb ae 0f 1f 00 66 66 2e 0f
C28;RSP: 0018:ffff9d3305d834f8 EFLAGS: 00010286
C28;RAX: 00000000ffffffff RBX: 0000000000000001 RCX: 0000000000000022
C28;RDX: 000000000000000c RSI: 0000000000000001 RDI: 000000000000f720
C28;RBP: 000000000000000c R08: ffff9d3300000000 R09: ffffbd32ffffffff
C28;R10: 00000000ffffffff R11: 0000000000000076 R12: ffff8fad48480000
C28;R13: 0000000000000001 R14: 0000000000000dc0 R15: 000000000000f720
C28;FS:  00007ff40af34b80(0000) GS:ffff8fbba5e76000(0000) knlGS:0000000000000000
C28;CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
C28;CR2: 00007f6ae2fa7010 CR3: 0000000120bd9000 CR4: 0000000000f50ef0
C28;PKRU: 55555554
T1581;Kernel panic - not syncing: Fatal exception in interrupt
T1581;Kernel Offset: 0x15a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
T1581;---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

So now I'm going to use memtest86+ on my machine and then look at the changes I had in
my userspace as the first error occured on 22.7.2026. Let's hope this does not escalate ...

Bert Karwatzki

Re: [Re] kernel panic during shutdown in v7.2-rc{3,4} and next-20260722 with PREEMPT_RT

[Bert Karwatzki]

Am Donnerstag, dem 23.07.2026 um 15:23 +0200 schrieb Bert Karwatzki:
> Am Donnerstag, dem 23.07.2026 um 15:10 +0200 schrieb Bert Karwatzki:
> > I was able to gather the panic error message from a failed shutdown via netconsole,
> > this time the kernel used was v7.2-rc3:
> > #
> > Bert Karwatzki
> 
> Unfortunatetly I can now reproduce these kernel panics in v7.1:
> 
> 
> So now I'm going to use memtest86+ on my machine and then look at the changes I had in
> my userspace as the first error occured on 22.7.2026. Let's hope this does not escalate ...
> 
> Bert Karwatzki

So I've run memtest86+ for ~2.5h (2.6 complete runs) and found no error. Even if my memory
contained an error, if it's that hard to trigger it would not cause frequent crashes.

But I found out an exciting thing:
I can only reproduce the crashes in v7.2-rc4 when watching the reboot via netconsole,
without netconsole no crash occurs!(This also explains why I had not seen this crashes before ...) 
In next-20260722 the crash is reproducible without netconsole.
So I'm going back to bisecting from v7.2-rc4 to next-20260722. Once I'm finished with
that I'm going to look at the "netconsole triggerred" crashes.
 Does anyone have an idea what's going on?

Bert Karwatzki