Public bug reported: I just noticed a call trace in dmesg. It is hard to tell what is causing it - thunderbolt?:
2.838950] thunderbolt 0-0:1.1: new retimer found, vendor=0x8087 device=0x15ee [ 2.840664] sysfs: cannot create duplicate filename '/devices/platform/USBC000:00/typec/port0/port0.0/partner' [ 2.840667] CPU: 4 UID: 0 PID: 177 Comm: kworker/4:1 Not tainted 6.14.0-24-generic #24-Ubuntu [ 2.840669] Hardware name: Dell Inc. XPS 15 9520/0F6K9V, BIOS 1.32.1 04/28/2025 [ 2.840670] Workqueue: events_long ucsi_init_work [typec_ucsi] [ 2.840675] Call Trace: [ 2.840676] <TASK> [ 2.840677] show_stack+0x49/0x60 [ 2.840680] dump_stack_lvl+0x5f/0x90 [ 2.840682] dump_stack+0x10/0x18 [ 2.840683] sysfs_warn_dup.cold+0x17/0x34 [ 2.840685] sysfs_do_create_link_sd+0xf1/0x100 [ 2.840687] ? __pfx___device_attach_driver+0x10/0x10 [ 2.840689] sysfs_create_link+0x21/0x50 [ 2.840691] typec_probe+0x7e/0x100 [typec] [ 2.840697] ? driver_sysfs_add+0x66/0xd0 [ 2.840698] really_probe+0xf6/0x370 [ 2.840700] ? pm_runtime_barrier+0x55/0xa0 [ 2.840701] __driver_probe_device+0x8c/0x140 [ 2.840702] driver_probe_device+0x24/0xd0 [ 2.840704] __device_attach_driver+0xcd/0x170 [ 2.840705] bus_for_each_drv+0x96/0x100 [ 2.840706] __device_attach+0xb4/0x1d0 [ 2.840708] device_initial_probe+0x13/0x20 [ 2.840709] bus_probe_device+0x9f/0xb0 [ 2.840710] device_add+0x518/0x710 [ 2.840712] device_register+0x1a/0x30 [ 2.840714] typec_register_altmode+0x253/0x380 [typec] [ 2.840719] typec_partner_register_altmode+0xe/0x20 [typec] [ 2.840722] ucsi_register_altmode.constprop.0+0x2e4/0x3c0 [typec_ucsi] [ 2.840725] ucsi_register_altmodes+0x173/0x260 [typec_ucsi] [ 2.840727] ucsi_check_altmodes+0x19/0xc0 [typec_ucsi] [ 2.840729] ucsi_register_port+0x609/0x670 [typec_ucsi] [ 2.840731] ucsi_init+0xd9/0x310 [typec_ucsi] [ 2.840733] ucsi_init_work+0x18/0x90 [typec_ucsi] [ 2.840734] process_one_work+0x174/0x350 [ 2.840737] worker_thread+0x34a/0x480 [ 2.840737] ? _raw_spin_lock_irqsave+0xe/0x20 [ 2.840739] ? __pfx_worker_thread+0x10/0x10 [ 2.840740] kthread+0xf9/0x230 [ 2.840741] ? __pfx_kthread+0x10/0x10 [ 2.840743] ret_from_fork+0x44/0x70 [ 2.840744] ? __pfx_kthread+0x10/0x10 [ 2.840745] ret_from_fork_asm+0x1a/0x30 [ 2.840747] </TASK> [ 2.840749] typec-thunderbolt port0-partner.1: failed to create symlinks [ 2.840752] typec-thunderbolt port0-partner.1: probe with driver typec-thunderbolt failed with error -17 [ 2.851829] videodev: Linux video capture interface: v2.00 [ 2.872890] thunderbolt 0-0:1.2: new retimer found, vendor=0x8087 device=0x15ee [ 2.924012] AES CTR mode by8 optimization enabled [ 2.926024] i2c i2c-2: Successfully instantiated SPD at 0x50 ProblemType: Bug DistroRelease: Ubuntu 25.04 Package: linux-image-6.14.0-24-generic 6.14.0-24.24 ProcVersionSignature: Ubuntu 6.14.0-24.24-generic 6.14.6 Uname: Linux 6.14.0-24-generic x86_64 ApportVersion: 2.32.0-0ubuntu5.3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Jul 28 21:50:30 2025 InstallationDate: Installed on 2022-10-06 (1026 days ago) InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1) MachineType: Dell Inc. XPS 15 9520 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.14.0-24-generic root=UUID=a7d7a7cc-081c-4c2b-a009-d601334132fd ro quiet splash resume=UUID=a7d7a7cc-081c-4c2b-a009-d601334132fd resume_offset=61833216 crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.14.0-24-generic N/A linux-backports-modules-6.14.0-24-generic N/A linux-firmware 20250317.git1d4c88ee-0ubuntu1.3 SourcePackage: linux UpgradeStatus: Upgraded to plucky on 2025-06-03 (55 days ago) dmi.bios.date: 04/28/2025 dmi.bios.release: 1.32 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.32.1 dmi.board.name: 0F6K9V dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.ec.firmware.release: 1.16 dmi.modalias: dmi:bvnDellInc.:bvr1.32.1:bd04/28/2025:br1.32:efr1.16:svnDellInc.:pnXPS159520:pvr:rvnDellInc.:rn0F6K9V:rvrA00:cvnDellInc.:ct10:cvr:sku0B19: dmi.product.family: XPS dmi.product.name: XPS 15 9520 dmi.product.sku: 0B19 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug plucky wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2118939 Title: dmesg: call trace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2118939/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs