linux-kernel - [linux-next:master] [workqueue] b188c57af2: sysfs:cannot_create_duplicate

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Message-ID: <202408161132.7c52d91a-oliver.sang@intel.com>
Date: Fri, 16 Aug 2024 12:08:17 +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>, Linux Memory Management List
	<linux-mm@...ck.org>, Tejun Heo <tj@...nel.org>, Lai Jiangshan
	<jiangshanlai@...il.com>, <linux-kernel@...r.kernel.org>,
	<oliver.sang@...el.com>
Subject: [linux-next:master] [workqueue]  b188c57af2:
 sysfs:cannot_create_duplicate_filename



Hello,

kernel test robot noticed "sysfs:cannot_create_duplicate_filename" on:

commit: b188c57af2b5c17a1e8f71a0358f330446a4f788 ("workqueue: Split alloc_workqueue into internal function and lockdep init")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

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)


+----------------------------------------+------------+------------+
|                                        | 946c57e61d | b188c57af2 |
+----------------------------------------+------------+------------+
| sysfs:cannot_create_duplicate_filename | 0          | 12         |
+----------------------------------------+------------+------------+


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/202408161132.7c52d91a-oliver.sang@intel.com


[  OK  ] Started OpenBSD Secure Shell server.
[  116.454031][  T134] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
LKP: ttyS0: 211: Kernel tests: Boot OK!
LKP: ttyS0: 211: HOSTNAME vm-snb, MAC 52:54:00:12:34:56, kernel 6.11.0-rc1-00003-gb188c57af2b5 1[  116.612859][  T177] scsi host0: ata_piix

[  116.885461][  T177] sysfs: cannot create duplicate filename '/devices/virtual/workqueue/scsi_tmf_7698144'
[  116.902822][  T177] CPU: 1 UID: 0 PID: 177 Comm: systemd-udevd Not tainted 6.11.0-rc1-00003-gb188c57af2b5 #1
[  116.919869][  T177] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  116.937535][  T177] Call Trace:
[  116.952146][  T177]  <TASK>
[ 116.958139][ T177] dump_stack_lvl (kbuild/src/consumer/lib/dump_stack.c:121) 
[ 116.966343][ T177] sysfs_create_dir_ns (kbuild/src/consumer/fs/sysfs/dir.c:32 kbuild/src/consumer/fs/sysfs/dir.c:63) 
[ 116.974637][ T177] kobject_add_internal (kbuild/src/consumer/lib/kobject.c:74 kbuild/src/consumer/lib/kobject.c:240) 
[ 116.984066][ T177] 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/20240816/202408161132.7c52d91a-oliver.sang@intel.com



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