Hello, kernel test robot noticed "sysfs:cannot_create_duplicate_filename" on: commit: 589686d5b8d589e30478cfb8db2e8e2cd54c20e9 ("[PATCH v3 1/5] workqueue: Split alloc_workqueue into internal function and lockdep init") url: https://github.com/intel-lab-lkp/linux/commits/Matthew-Brost/workqueue-Split-alloc_workqueue-into-internal-function-and-lockdep-init/20240810-122131 base: https://git.kernel.org/cgit/linux/kernel/git/tj/wq.git for-next patch link: https://lore.kernel.org/all/20240809222827.3211998-2-matthew.brost@xxxxxxxxx/ patch subject: [PATCH v3 1/5] workqueue: Split alloc_workqueue into internal function and lockdep init in testcase: boot compiler: clang-18 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +----------------------------------------+------------+------------+ | | 3b47e19ebc | 589686d5b8 | +----------------------------------------+------------+------------+ | sysfs:cannot_create_duplicate_filename | 0 | 18 | +----------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-lkp/202408121610.d1cdf757-oliver.sang@xxxxxxxxx [ OK ] Started User Login Management. Starting LSB: Load kernel image with kexec... [ 11.888312][ T131] ata_piix 0000:00:01.1: version 2.13 [ OK ] Started OpenBSD Secure Shell server. [ 11.890919][ T131] scsi host0: ata_piix [ 11.893885][ T131] sysfs: cannot create duplicate filename '/devices/virtual/workqueue/scsi_tmf_4945632' [ 11.895088][ T131] CPU: 0 UID: 0 PID: 131 Comm: systemd-udevd Not tainted 6.11.0-rc1-00010-g589686d5b8d5 #1 [ 11.896222][ T131] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 11.897360][ T131] Call Trace: [ 11.897806][ T131] <TASK> [ 11.898206][ T131] dump_stack_lvl (kbuild/src/consumer/lib/dump_stack.c:121) [ 11.898801][ T131] sysfs_create_dir_ns (kbuild/src/consumer/fs/sysfs/dir.c:32 kbuild/src/consumer/fs/sysfs/dir.c:63) [ 11.899453][ T131] kobject_add_internal (kbuild/src/consumer/lib/kobject.c:74 kbuild/src/consumer/lib/kobject.c:240) [ 11.900074][ T131] kobject_add (kbuild/src/consumer/lib/kobject.c:430) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240812/202408121610.d1cdf757-oliver.sang@xxxxxxxxx -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki