linux-kernel - Re: [PATCH v3 1/5] workqueue: Split alloc_workqueue into internal function and lockdep init

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Message-ID: <202408121610.d1cdf757-oliver.sang@intel.com>
Date: Tue, 13 Aug 2024 14:13:25 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Matthew Brost <matthew.brost@...el.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Tejun Heo <tj@...nel.org>, "Lai
 Jiangshan" <jiangshanlai@...il.com>, <linux-kernel@...r.kernel.org>,
	<intel-xe@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
	<christian.koenig@....com>, <ltuikov89@...il.com>, <daniel@...ll.ch>,
	<oliver.sang@...el.com>
Subject: Re: [PATCH v3 1/5] workqueue: Split alloc_workqueue into internal
 function and lockdep init



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@intel.com/
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@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202408121610.d1cdf757-oliver.sang@intel.com


[  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@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki