syzbot


WARNING in enable_work

Status: upstream: reported on 2024/08/21 10:14
Subsystems: pm
[Documentation on labels]
Reported-by: syzbot+7053fbd8757fecbbe492@syzkaller.appspotmail.com
First crash: 26d, last: 26d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly pm report (Aug 2024) 0 (1) 2024/08/26 13:47
[syzbot] [pm?] WARNING in enable_work 0 (1) 2024/08/21 10:14

Sample crash report:
------------[ cut here ]------------
workqueue: work disable count underflowed
WARNING: CPU: 1 PID: 5233 at kernel/workqueue.c:4290 work_offqd_enable kernel/workqueue.c:4290 [inline]
WARNING: CPU: 1 PID: 5233 at kernel/workqueue.c:4290 enable_work+0x34d/0x360 kernel/workqueue.c:4461
Modules linked in:
CPU: 1 UID: 0 PID: 5233 Comm: kworker/1:3 Not tainted 6.11.0-rc3-syzkaller-00279-ge5fa841af679 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:work_offqd_enable kernel/workqueue.c:4290 [inline]
RIP: 0010:enable_work+0x34d/0x360 kernel/workqueue.c:4461
Code: d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 88 cd 92 0a e8 68 17 36 00 c6 05 bf 2e a4 0e 01 90 48 c7 c7 80 10 0a 8c e8 a4 3e f8 ff 90 <0f> 0b 90 90 e9 56 ff ff ff e8 e5 25 59 0a 0f 1f 44 00 00 90 90 90
RSP: 0018:ffffc900042270c0 EFLAGS: 00010046
RAX: 022b146294645100 RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc900177a9000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc90004227190 R08: ffffffff8155b4d2 R09: 1ffff1101726519a
R10: dffffc0000000000 R11: ffffed101726519b R12: 1ffff92000844e1c
R13: 1ffff92000844e24 R14: 0000000000800001 R15: ffff88802d570738
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3321bff8 CR3: 000000005bbf0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __cancel_work_sync+0xf5/0x110 kernel/workqueue.c:4331
 thermal_zone_device_unregister+0x296/0x3f0 drivers/thermal/thermal_core.c:1660
 psy_unregister_thermal drivers/power/supply/power_supply_core.c:1333 [inline]
 power_supply_unregister+0xe8/0x140 drivers/power/supply/power_supply_core.c:1610
 thunderstrike_destroy drivers/hid/hid-nvidia-shield.c:927 [inline]
 shield_remove+0x72/0x120 drivers/hid/hid-nvidia-shield.c:1104
 hid_device_remove+0x227/0x370
 device_remove drivers/base/dd.c:566 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4ab/0x7c0 drivers/base/dd.c:1295
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:574
 device_del+0x57a/0x9b0 drivers/base/core.c:3871
 hid_remove_device drivers/hid/hid-core.c:2914 [inline]
 hid_destroy_device+0x68/0x100 drivers/hid/hid-core.c:2934
 usbhid_disconnect+0x9e/0xc0 drivers/hid/usbhid/hid-core.c:1458
 usb_unbind_interface+0x260/0x940 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:568 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x505/0x7c0 drivers/base/dd.c:1295
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:574
 device_del+0x57a/0x9b0 drivers/base/core.c:3871
 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1ebc/0x5150 drivers/usb/core/hub.c:5903
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/17 10:09 upstream e5fa841af679 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in enable_work
* Struck through repros no longer work on HEAD.