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From: Bert Karwatzki <spasswolf@web.de>
To: linux-kernel@vger.kernel.org, Rafal Ostrowski <rafal.ostrowski@amd.com>
Cc: Bert Karwatzki <spasswolf@web.de>,
	linux-next@vger.kernel.org, linux-rt-devel@lists.linux.dev,
	amd-gfx@lists.freedesktop.org,
	Alex Deucher <alexander.deucher@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [Re] kernel panic during shutdown in v7.2-rc4 and next-20260722 with PREEMPT_RT
Date: Thu, 23 Jul 2026 14:43:51 +0200	[thread overview]
Message-ID: <20260723124353.13040-1-spasswolf@web.de> (raw)
In-Reply-To: :	<20260723123449.6494-1-spasswolf@web.de>

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



  reply	other threads:[~2026-07-23 12:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-23 12:34 kernel panic during shutdown in v7.2-rc4 and next-20260722 with PREEMPT_RT Bert Karwatzki
2026-07-23 12:43 ` Bert Karwatzki [this message]
2026-07-23 13:10   ` [Re] kernel panic during shutdown in v7.2-rc{3,4} " Bert Karwatzki
2026-07-23 13:23     ` Bert Karwatzki
2026-07-23 16:17       ` Bert Karwatzki

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