Hi all, Debian received a bug report <https://bugs.debian.org/1102175> about soft lockups where a Thunderbolt bridge fails to come back from runtime suspend. Here's an example:
2025-04-11T20:12:16.449990-07:00 schallkreis kernel: pcieport 0000:0f:00.0: Unable to change power state from D3cold to D0, device inaccessible 2025-04-11T20:12:38.513032-07:00 schallkreis kernel: watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [apcupsd:3119] 2025-04-11T20:12:38.513045-07:00 schallkreis kernel: Modules linked in: qrtr nfsd auth_rpcgss nfs_acl lockd grace binfmt_misc sunrpc nls_ascii nls_cp437 vfat fat amd_atl intel_rapl_msr intel_rapl_co mmon mt7925e mt7925_common mt792x_lib mt76_connac_lib edac_mce_amd mt76 snd_hda_codec_realtek kvm_amd snd_hda_codec_generic mac80211 snd_hda_scodec_component snd_hda_codec_hdmi kvm snd_hda_intel snd _intel_dspcfg libarc4 snd_intel_sdw_acpi snd_hda_codec cfg80211 crct10dif_pclmul ghash_clmulni_intel snd_hda_core sha512_ssse3 sha256_ssse3 sha1_ssse3 snd_hwdep aesni_intel snd_pcm gf128mul crypto_s imd cryptd spd5118 wmi_bmof snd_timer rapl ccp pcspkr snd k10temp rfkill soundcore joydev evdev parport_pc ppdev lp parport configfs efi_pstore nfnetlink efivarfs ip_tables x_tables autofs4 ext4 mbc ache jbd2 crc32c_generic hid_generic usbhid hid amdgpu amdxcp drm_exec gpu_sched drm_buddy i2c_algo_bit drm_suballoc_helper drm_display_helper cec rc_core drm_ttm_helper ttm xhci_pci xhci_hcd drm_km s_helper ahci libahci libata drm thunderbolt r8169 usbcore nvme sp5100_tco watchdog 2025-04-11T20:12:38.513046-07:00 schallkreis kernel: scsi_mod realtek mdio_devres nvme_core libphy crc32_pclmul crc32c_intel i2c_piix4 i2c_smbus usb_common video scsi_common nvme_auth crc16 wmi gpi o_amdpt gpio_generic button 2025-04-11T20:12:38.513047-07:00 schallkreis kernel: CPU: 1 UID: 0 PID: 3119 Comm: apcupsd Not tainted 6.12.21-amd64 #1 Debian 6.12.21-1 2025-04-11T20:12:38.513048-07:00 schallkreis kernel: Hardware name: System76 Thelio Mira/Thelio Mira, BIOS 3.11.SP01 12/05/2024 2025-04-11T20:12:38.513049-07:00 schallkreis kernel: RIP: 0010:pci_mmcfg_read+0xa4/0xe0 2025-04-11T20:12:38.513049-07:00 schallkreis kernel: Code: fe 01 75 0b 4c 01 e0 8a 00 0f b6 c0 89 45 00 e8 a2 6a 51 ff 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 4c 01 e0 8b 00 <89> 45 00 eb e0 4c 01 e0 66 8b 00 0f b7 c0 89 45 00 eb d2 e8 74 6a 2025-04-11T20:12:38.513050-07:00 schallkreis kernel: RSP: 0018:ffffaf7345f93688 EFLAGS: 00000286 2025-04-11T20:12:38.513050-07:00 schallkreis kernel: RAX: 00000000ffffffff RBX: 0000000000f00000 RCX: 0000000000000ffc 2025-04-11T20:12:38.513064-07:00 schallkreis kernel: RDX: 00000000000000ff RSI: 000000000000000f RDI: 0000000000000000 2025-04-11T20:12:38.513065-07:00 schallkreis kernel: RBP: ffffaf7345f936c4 R08: 0000000000000004 R09: ffffaf7345f936c4 2025-04-11T20:12:38.513065-07:00 schallkreis kernel: R10: 000000000000000f R11: ffffffffab061970 R12: 0000000000000ffc 2025-04-11T20:12:38.513066-07:00 schallkreis kernel: R13: 0000000000000000 R14: 0000000000000004 R15: 0000000000000000 2025-04-11T20:12:38.513066-07:00 schallkreis kernel: FS: 00007fa0debc10c0(0000) GS:ffff9ca81f280000(0000) knlGS:0000000000000000 2025-04-11T20:12:38.513066-07:00 schallkreis kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 2025-04-11T20:12:38.513066-07:00 schallkreis kernel: CR2: 00002bac04cb4000 CR3: 00000001188ce000 CR4: 0000000000f50ef0 2025-04-11T20:12:38.513067-07:00 schallkreis kernel: PKRU: 55555554 2025-04-11T20:12:38.513067-07:00 schallkreis kernel: Call Trace: 2025-04-11T20:12:38.513068-07:00 schallkreis kernel: <IRQ> 2025-04-11T20:12:38.513068-07:00 schallkreis kernel: ? watchdog_timer_fn.cold+0x3d/0xa1 2025-04-11T20:12:38.513069-07:00 schallkreis kernel: ? __pfx_watchdog_timer_fn+0x10/0x10 2025-04-11T20:12:38.513069-07:00 schallkreis kernel: ? __hrtimer_run_queues+0x12f/0x2a0 2025-04-11T20:12:38.513069-07:00 schallkreis kernel: ? hrtimer_interrupt+0xfa/0x210 2025-04-11T20:12:38.513069-07:00 schallkreis kernel: ? __sysvec_apic_timer_interrupt+0x52/0x100 2025-04-11T20:12:38.513070-07:00 schallkreis kernel: ? sysvec_apic_timer_interrupt+0x6c/0x90 2025-04-11T20:12:38.513070-07:00 schallkreis kernel: </IRQ> 2025-04-11T20:12:38.513070-07:00 schallkreis kernel: <TASK> 2025-04-11T20:12:38.513070-07:00 schallkreis kernel: ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 2025-04-11T20:12:38.513072-07:00 schallkreis kernel: ? __pfx_pci_mmcfg_read+0x10/0x10 2025-04-11T20:12:38.513072-07:00 schallkreis kernel: ? pci_mmcfg_read+0xa4/0xe0 2025-04-11T20:12:38.513072-07:00 schallkreis kernel: ? pci_mmcfg_read+0x4f/0xe0 2025-04-11T20:12:38.513073-07:00 schallkreis kernel: pci_bus_read_config_dword+0x4a/0x80 2025-04-11T20:12:38.513073-07:00 schallkreis kernel: pci_find_next_ext_capability+0x89/0xf0 2025-04-11T20:12:38.513073-07:00 schallkreis kernel: pci_restore_ltr_state+0x28/0x50 2025-04-11T20:12:38.513079-07:00 schallkreis kernel: pci_restore_state.part.0+0x29/0x370 2025-04-11T20:12:38.513080-07:00 schallkreis kernel: pci_pm_runtime_resume+0x45/0xf0 2025-04-11T20:12:38.513080-07:00 schallkreis kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 2025-04-11T20:12:38.513080-07:00 schallkreis kernel: __rpm_callback+0x41/0x170 2025-04-11T20:12:38.513080-07:00 schallkreis kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 2025-04-11T20:12:38.513081-07:00 schallkreis kernel: rpm_callback+0x55/0x60 2025-04-11T20:12:38.513082-07:00 schallkreis kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 2025-04-11T20:12:38.513082-07:00 schallkreis kernel: rpm_resume+0x4d3/0x700 2025-04-11T20:12:38.513083-07:00 schallkreis kernel: ? xhci_get_resuming_ports+0x12/0x50 [xhci_hcd] 2025-04-11T20:12:38.513083-07:00 schallkreis kernel: ? hub_resume+0xa5/0x100 [usbcore] 2025-04-11T20:12:38.513083-07:00 schallkreis kernel: rpm_resume+0x2d3/0x700 2025-04-11T20:12:38.513083-07:00 schallkreis kernel: rpm_resume+0x2d3/0x700 2025-04-11T20:12:38.513084-07:00 schallkreis kernel: rpm_resume+0x2d3/0x700 2025-04-11T20:12:38.513084-07:00 schallkreis kernel: ? klist_put+0x1f/0xb0 2025-04-11T20:12:38.513084-07:00 schallkreis kernel: __pm_runtime_resume+0x4b/0x80 2025-04-11T20:12:38.513085-07:00 schallkreis kernel: usb_autoresume_device+0x1e/0x50 [usbcore] 2025-04-11T20:12:38.513085-07:00 schallkreis kernel: usbdev_open+0x103/0x260 [usbcore] 2025-04-11T20:12:38.513086-07:00 schallkreis kernel: ? bpf_prog_e8932b6bae2b9745_restrict_filesystems+0xb7/0x132 2025-04-11T20:12:38.513087-07:00 schallkreis kernel: chrdev_open+0xb2/0x230 2025-04-11T20:12:38.513087-07:00 schallkreis kernel: ? __pfx_chrdev_open+0x10/0x10 2025-04-11T20:12:38.513087-07:00 schallkreis kernel: do_dentry_open+0x14c/0x440 2025-04-11T20:12:38.513087-07:00 schallkreis kernel: vfs_open+0x2e/0xe0 2025-04-11T20:12:38.513088-07:00 schallkreis kernel: path_openat+0x82e/0x12d0 2025-04-11T20:12:38.513089-07:00 schallkreis kernel: ? usbdev_read+0x1d5/0x2c0 [usbcore] 2025-04-11T20:12:38.513089-07:00 schallkreis kernel: do_filp_open+0xc4/0x170 2025-04-11T20:12:38.513089-07:00 schallkreis kernel: do_sys_openat2+0xae/0xe0 2025-04-11T20:12:38.513090-07:00 schallkreis kernel: __x64_sys_openat+0x55/0xa0 2025-04-11T20:12:38.513090-07:00 schallkreis kernel: do_syscall_64+0x82/0x190 2025-04-11T20:12:38.513090-07:00 schallkreis kernel: ? __memcg_slab_free_hook+0xf7/0x140 2025-04-11T20:12:38.513091-07:00 schallkreis kernel: ? __x64_sys_close+0x3c/0x80 2025-04-11T20:12:38.513092-07:00 schallkreis kernel: ? kmem_cache_free+0x3ee/0x440 2025-04-11T20:12:38.513092-07:00 schallkreis kernel: ? syscall_exit_to_user_mode+0x4d/0x210 2025-04-11T20:12:38.513093-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513093-07:00 schallkreis kernel: ? syscall_exit_to_user_mode+0x4d/0x210 2025-04-11T20:12:38.513093-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513094-07:00 schallkreis kernel: ? do_sys_openat2+0x9c/0xe0 2025-04-11T20:12:38.513095-07:00 schallkreis kernel: ? syscall_exit_to_user_mode+0x4d/0x210 2025-04-11T20:12:38.513095-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513095-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513096-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513096-07:00 schallkreis kernel: ? do_syscall_64+0x8e/0x190 2025-04-11T20:12:38.513096-07:00 schallkreis kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e 2025-04-11T20:12:38.513097-07:00 schallkreis kernel: RIP: 0033:0x7fa0dec5c9ee 2025-04-11T20:12:38.513098-07:00 schallkreis kernel: Code: 08 0f 85 f5 4b ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 2025-04-11T20:12:38.513099-07:00 schallkreis kernel: RSP: 002b:00007ffe05ee1b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 2025-04-11T20:12:38.513099-07:00 schallkreis kernel: RAX: ffffffffffffffda RBX: 00007fa0debc10c0 RCX: 00007fa0dec5c9ee 2025-04-11T20:12:38.513099-07:00 schallkreis kernel: RDX: 0000000000080002 RSI: 000055a553c51310 RDI: ffffffffffffff9c 2025-04-11T20:12:38.513099-07:00 schallkreis kernel: RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 2025-04-11T20:12:38.513100-07:00 schallkreis kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe05ee1cb0 2025-04-11T20:12:38.513101-07:00 schallkreis kernel: R13: 00007ffe05ee1c60 R14: 000055a54bf862cb R15: 0000000000000004 2025-04-11T20:12:38.513101-07:00 schallkreis kernel: </TASK> (full log is at <https://she-devel.com/Thelio-Mira-syslog.tar.xz>). We later received a report of similar behaviour on a different system running Gentoo: Apr 30 03:08:17 tibia kernel: pcieport 0000:19:00.0: Unable to change power state from D3cold to D0, device inaccessible [...] Apr 30 03:08:40 tibia kernel: watchdog: BUG: soft lockup - CPU#9 stuck for 22s! [device poll:533454] Apr 30 03:08:40 tibia kernel: CPU#9 Utilization every 4s during lockup: Apr 30 03:08:42 tibia kernel: #1: 2% system, 0% softirq, 0% hardirq, 0% idle Apr 30 03:08:43 tibia kernel: #2: 2% system, 0% softirq, 0% hardirq, 0% idle Apr 30 03:08:43 tibia kernel: #3: 2% system, 0% softirq, 0% hardirq, 0% idle Apr 30 03:08:44 tibia kernel: #4: 2% system, 0% softirq, 0% hardirq, 0% idle Apr 30 03:08:44 tibia kernel: #5: 2% system, 0% softirq, 0% hardirq, 0% idle Apr 30 03:08:44 tibia kernel: Modules linked in: veth nf_conntrack_netlink xt_nat iptable_raw xt_set ip_set rfcomm snd_seq_dummy snd_seq_midi snd_hrtimer snd_seq_midi_event snd_seq xt_CHECKSUM xt_MASQUERADE ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat bridge stp llc overlay bnep vfat fat irdma i40e ib_uverbs ib_core amd_atl intel_rapl_msr intel_rapl_common mt7925e mt7925_common mt792x_lib mt76_connac_lib amdgpu edac_mce_amd snd_hda_codec_hdmi mt76 kvm_amd snd_hda_intel spd5118 snd_intel_dspcfg snd_usb_audio mac80211 snd_intel_sdw_acpi kvm amdxcp snd_usbmidi_lib snd_hda_codec btusb gpu_sched snd_ump i2c_algo_bit btrtl drm_suballoc_helper snd_rawmidi drm_ttm_helper snd_hda_core snd_seq_device btintel ttm mc snd_hwdep btbcm btmtk drm_exec libarc4 i2c_piix4 ice drm_display_helper snd_pcm thunderbolt rapl pcspkr wmi_bmof k10temp i2c_smbus cec bluetooth snd_timer drm_buddy r8169 cfg80211 snd gnss soundcore libie realtek rfkill joydev gpio_amdpt gpio_generic acpi_pad ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt ipt_REJECT Apr 30 03:08:44 tibia kernel: nf_reject_ipv4 xt_limit xt_addrtype xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6table_filter ip6_tables iptable_filter ip_tables fuse loop nfnetlink crct10dif_pclmul crc32_pclmul crc32c_intel nvme polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 sp5100_tco nvme_core nvme_auth video wmi lm92 Apr 30 03:08:44 tibia kernel: CPU: 9 UID: 1000 PID: 533454 Comm: device poll Not tainted 6.12.21-gentoo-dist #1 Apr 30 03:08:44 tibia kernel: Hardware name: ASRock X870E Taichi Lite/X870E Taichi Lite, BIOS 3.20 02/21/2025 Apr 30 03:08:44 tibia kernel: RIP: 0010:pci_mmcfg_read+0xa4/0xe0 Apr 30 03:08:44 tibia kernel: Code: fe 01 75 0b 4c 01 e0 8a 00 0f b6 c0 89 45 00 e8 f2 ee f9 fe 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 4c 01 e0 8b 00 <89> 45 00 eb e0 4c 01 e0 66 8b 00 0f b7 c0 89 45 00 eb d2 e8 c4 ee Apr 30 03:08:44 tibia kernel: RSP: 0018:ffffb933e32eb620 EFLAGS: 00000286 Apr 30 03:08:44 tibia kernel: RAX: 00000000ffffffff RBX: 0000000001900000 RCX: 0000000000000ffc Apr 30 03:08:44 tibia kernel: RDX: 00000000000000ff RSI: 0000000000000019 RDI: 0000000000000000 Apr 30 03:08:44 tibia kernel: RBP: ffffb933e32eb65c R08: 0000000000000004 R09: ffffb933e32eb65c Apr 30 03:08:44 tibia kernel: R10: 0000000000000019 R11: ffffffff9e231d60 R12: 0000000000000ffc Apr 30 03:08:44 tibia kernel: R13: 0000000000000000 R14: 0000000000000004 R15: 0000000000000000 Apr 30 03:08:44 tibia kernel: FS: 00007fcda051e6c0(0000) GS:ffff8b60bdc80000(0000) knlGS:0000000000000000 Apr 30 03:08:44 tibia kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Apr 30 03:08:44 tibia kernel: CR2: 00007faa4f42c000 CR3: 00000003cb1b6000 CR4: 0000000000f50ef0 Apr 30 03:08:44 tibia kernel: PKRU: 55555554 Apr 30 03:08:44 tibia kernel: Call Trace: Apr 30 03:08:44 tibia kernel: <IRQ> Apr 30 03:08:44 tibia kernel: ? watchdog_timer_fn.cold+0x233/0x311 Apr 30 03:08:44 tibia kernel: ? __pfx_watchdog_timer_fn+0x10/0x10 Apr 30 03:08:44 tibia kernel: ? __hrtimer_run_queues+0x113/0x280 Apr 30 03:08:44 tibia kernel: ? hrtimer_interrupt+0xfa/0x210 Apr 30 03:08:44 tibia kernel: ? __sysvec_apic_timer_interrupt+0x52/0x100 Apr 30 03:08:44 tibia kernel: ? sysvec_apic_timer_interrupt+0x6c/0x90 Apr 30 03:08:44 tibia kernel: </IRQ> Apr 30 03:08:44 tibia kernel: <TASK> Apr 30 03:08:44 tibia kernel: ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 Apr 30 03:08:44 tibia kernel: ? __pfx_pci_mmcfg_read+0x10/0x10 Apr 30 03:08:44 tibia kernel: ? pci_mmcfg_read+0xa4/0xe0 Apr 30 03:08:44 tibia kernel: pci_bus_read_config_dword+0x4a/0x80 Apr 30 03:08:44 tibia kernel: pci_find_next_ext_capability+0x89/0xf0 Apr 30 03:08:44 tibia kernel: ? _raw_spin_unlock_irqrestore+0x1d/0x40 Apr 30 03:08:44 tibia kernel: pci_restore_ltr_state+0x28/0x50 Apr 30 03:08:44 tibia kernel: pci_restore_state.part.0+0x29/0x370 Apr 30 03:08:44 tibia kernel: ? pci_bus_read_config_word+0x4a/0x90 Apr 30 03:08:44 tibia kernel: pci_pm_runtime_resume+0x45/0xf0 Apr 30 03:08:44 tibia kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 Apr 30 03:08:44 tibia kernel: __rpm_callback+0x41/0x170 Apr 30 03:08:44 tibia kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 Apr 30 03:08:44 tibia kernel: rpm_callback+0x55/0x60 Apr 30 03:08:44 tibia kernel: ? __pfx_pci_pm_runtime_resume+0x10/0x10 Apr 30 03:08:44 tibia kernel: rpm_resume+0x4d3/0x700 Apr 30 03:08:44 tibia kernel: ? check_preempt_wakeup_fair+0x1f3/0x280 Apr 30 03:08:44 tibia kernel: rpm_resume+0x2d3/0x700 Apr 30 03:08:44 tibia kernel: rpm_resume+0x2d3/0x700 Apr 30 03:08:44 tibia kernel: ? kick_pool+0x60/0x160 Apr 30 03:08:44 tibia kernel: rpm_resume+0x2d3/0x700 Apr 30 03:08:44 tibia kernel: ? klist_put+0x1f/0xb0 Apr 30 03:08:44 tibia kernel: __pm_runtime_resume+0x4b/0x80 Apr 30 03:08:44 tibia kernel: usb_autoresume_device+0x1e/0x50 Apr 30 03:08:44 tibia kernel: usbdev_open+0x133/0x2b0 Apr 30 03:08:44 tibia kernel: ? __cgroup_bpf_check_dev_permission+0x10c/0x190 Apr 30 03:08:44 tibia kernel: chrdev_open+0xb2/0x230 Apr 30 03:08:44 tibia kernel: ? __pfx_chrdev_open+0x10/0x10 Apr 30 03:08:44 tibia kernel: do_dentry_open+0x14c/0x4a0 Apr 30 03:08:44 tibia kernel: vfs_open+0x2e/0xe0 Apr 30 03:08:44 tibia kernel: path_openat+0x82e/0x12d0 Apr 30 03:08:44 tibia kernel: do_filp_open+0xc4/0x170 Apr 30 03:08:44 tibia kernel: do_sys_openat2+0xae/0xe0 Apr 30 03:08:44 tibia kernel: __x64_sys_openat+0x55/0xa0 Apr 30 03:08:44 tibia kernel: do_syscall_64+0x82/0x190 Apr 30 03:08:44 tibia kernel: ? inode_update_timestamps+0x15c/0x190 Apr 30 03:08:44 tibia kernel: ? generic_update_time+0x4e/0x60 Apr 30 03:08:44 tibia kernel: ? touch_atime+0xb5/0x120 Apr 30 03:08:44 tibia kernel: ? iterate_dir+0x182/0x200 Apr 30 03:08:44 tibia kernel: ? __x64_sys_getdents64+0x108/0x130 Apr 30 03:08:44 tibia kernel: ? __pfx_filldir64+0x10/0x10 Apr 30 03:08:44 tibia kernel: ? syscall_exit_to_user_mode+0x10/0x200 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: ? syscall_exit_to_user_mode+0x10/0x200 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: ? __x64_sys_getdents64+0x108/0x130 Apr 30 03:08:44 tibia kernel: ? __pfx_filldir64+0x10/0x10 Apr 30 03:08:44 tibia kernel: ? syscall_exit_to_user_mode+0x10/0x200 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: ? syscall_exit_to_user_mode+0x10/0x200 Apr 30 03:08:44 tibia kernel: ? do_syscall_64+0x8e/0x190 Apr 30 03:08:44 tibia kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e Apr 30 03:08:44 tibia kernel: RIP: 0033:0x7fcda111edb0 Apr 30 03:08:44 tibia kernel: Code: 48 89 44 24 20 75 92 44 89 54 24 0c e8 b9 89 f9 ff 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 0c 8a f9 ff 8b 44 Apr 30 03:08:44 tibia kernel: RSP: 002b:00007fcda051c930 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 Apr 30 03:08:44 tibia kernel: RAX: ffffffffffffffda RBX: 0000000000080000 RCX: 00007fcda111edb0 Apr 30 03:08:44 tibia kernel: RDX: 0000000000080000 RSI: 00007fcd98011520 RDI: 00000000ffffff9c Apr 30 03:08:44 tibia kernel: RBP: 00007fcd98011520 R08: 0000000000000000 R09: 0000000000000000 Apr 30 03:08:44 tibia kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 00007fcda051c9d0 Apr 30 03:08:44 tibia kernel: R13: 00005645b88bb1c0 R14: 00007fcd980124b0 R15: 0000000000000014 Apr 30 03:08:44 tibia kernel: </TASK> (full log is at <https://gist.github.com/gamozolabs/97e0dc50009022d3fe0c0895cc4f6e60>). These reports were against 6.12.x but I didn't see any later changes that are obviously related to an issue like this. On both systems the device stuck in D3cold is the upstream port of an ASMedia ASM4242 (PCI ID 1b21:2421) and the root complex is an AMD Raphael/Granite Ridge. So my guess is that there is some problem specific to the interaction between these 2, but perhaps not. The full kernel logs also show I/O timeouts on several other devices at around the same time, which I assume are connected somehow. Ben. -- Ben Hutchings - Debian developer, member of kernel, installer and LTS teams
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