Hello,
kernel test robot noticed "WARNING:at_kernel/workqueue.c:#apply_workqueue_attrs_locked" on:
commit: 05085e5ea6ef2eedf3dde3c0207295e39015dbe6 ("workqueue: Don't implicitly make UNBOUND workqueues w/ @max_active==1 ordered")
https://git.kernel.org/cgit/linux/kernel/git/tj/wq.git ordered-cleanup
in testcase: boot
compiler: gcc-11
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <[email protected]>
| Link: https://lore.kernel.org/oe-lkp/[email protected]
[ 0.799399][ T1] ------------[ cut here ]------------
[ 0.800396][ T1] WARNING: CPU: 0 PID: 1 at kernel/workqueue.c:4183 apply_workqueue_attrs_locked (workqueue.c:?)
[ 0.802142][ T1] Modules linked in:
[ 0.802868][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.3.0-rc7-00161-g05085e5ea6ef #2
[ 0.804426][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014
[ 0.806237][ T1] RIP: 0010:apply_workqueue_attrs_locked (workqueue.c:?)
[ 0.806946][ T1] Code: 83 c4 18 4c 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 44 00 00 8b 87 00 01 00 00 a8 02 75 04 0f 0b eb 08 0f ba e0 11 73 08 <0f> 0b b8 ea ff ff ff c3 55 48 c7 c2 20 5d ee 82 e8 45 fe ff ff 48
All code
========
0: 83 c4 18 add $0x18,%esp
3: 4c 89 e0 mov %r12,%rax
6: 5b pop %rbx
7: 5d pop %rbp
8: 41 5c pop %r12
a: 41 5d pop %r13
c: 41 5e pop %r14
e: 41 5f pop %r15
10: c3 retq
11: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
16: 8b 87 00 01 00 00 mov 0x100(%rdi),%eax
1c: a8 02 test $0x2,%al
1e: 75 04 jne 0x24
20: 0f 0b ud2
22: eb 08 jmp 0x2c
24: 0f ba e0 11 bt $0x11,%eax
28: 73 08 jae 0x32
2a:* 0f 0b ud2 <-- trapping instruction
2c: b8 ea ff ff ff mov $0xffffffea,%eax
31: c3 retq
32: 55 push %rbp
33: 48 c7 c2 20 5d ee 82 mov $0xffffffff82ee5d20,%rdx
3a: e8 45 fe ff ff callq 0xfffffffffffffe84
3f: 48 rex.W
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: b8 ea ff ff ff mov $0xffffffea,%eax
7: c3 retq
8: 55 push %rbp
9: 48 c7 c2 20 5d ee 82 mov $0xffffffff82ee5d20,%rdx
10: e8 45 fe ff ff callq 0xfffffffffffffe5a
15: 48 rex.W
[ 0.810590][ T1] RSP: 0000:ffffc90000013e80 EFLAGS: 00010203
[ 0.811801][ T1] RAX: 0000000000020002 RBX: 0000000000000000 RCX: 00000000fffffffe
[ 0.813395][ T1] RDX: ffff88810cac0000 RSI: ffff88810c87f1e0 RDI: ffff88810cb23c00
[ 0.814590][ T1] RBP: ffffc90000013f20 R08: ffffffff8223b9a9 R09: 000000000000011b
[ 0.816155][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810cb23c00
[ 0.817757][ T1] R13: ffff88810cb23c20 R14: ffff88810cb23c10 R15: ffff88810cb23cb0
[ 0.819127][ T1] FS: 0000000000000000(0000) GS:ffff88842fc00000(0000) knlGS:0000000000000000
[ 0.820963][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 0.822262][ T1] CR2: ffff88843ffff000 CR3: 0000000002432000 CR4: 00000000000406f0
[ 0.823137][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 0.824907][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 0.826596][ T1] Call Trace:
[ 0.827446][ T1] <TASK>
[ 0.828162][ T1] apply_workqueue_attrs (??:?)
[ 0.829275][ T1] alloc_workqueue (??:?)
[ 0.830321][ T1] ? __cpuhp_setup_state_cpuslocked (??:?)
[ 0.830974][ T1] ? pfn_to_online_page (??:?)
[ 0.832001][ T1] ? __cond_resched (??:?)
[ 0.832968][ T1] cpuset_init_smp (??:?)
[ 0.833938][ T1] kernel_init_freeable (main.c:?)
[ 0.834943][ T1] ? rest_init (main.c:?)
[ 0.835891][ T1] kernel_init (main.c:?)
[ 0.836823][ T1] ret_from_fork (??:?)
[ 0.837741][ T1] </TASK>
[ 0.838422][ T1] ---[ end trace 0000000000000000 ]---
To reproduce:
# build kernel
cd linux
cp config-6.3.0-rc7-00161-g05085e5ea6ef .config
make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
make HOSTCC=gcc-11 CC=gcc-11 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
cd <mod-install-dir>
find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests