bisecting fixing commit since c9194f32bfd932e976a158d1af97a63be68a2aab building syzkaller on 6972b10616d785401dea17cec890cca8916424a7 testing commit c9194f32bfd932e976a158d1af97a63be68a2aab compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fcd269ddf9d9510f5a85cb9ac04e1acb82d670e308dc233538518e0e4745c6ee all runs: crashed: INFO: trying to register non-static key in ath9k_wmi_event_tasklet testing current HEAD 5af4055fa8133662831ae2fb6e188e8f6c172688 testing commit 5af4055fa8133662831ae2fb6e188e8f6c172688 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c603c2f082f61421a0845568ed976e25798e883f598bb4e1bc05656588115061 all runs: crashed: INFO: trying to register non-static key in ath9k_wmi_event_tasklet revisions tested: 2, total time: 21m0.561307231s (build: 13m30.609592268s, test: 6m51.7109052s) the crash still happens on HEAD commit msg: Merge tag 'devicetree-fixes-for-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux crash: INFO: trying to register non-static key in ath9k_wmi_event_tasklet INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.15.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106 assign_lock_key kernel/locking/lockdep.c:939 [inline] register_lock_class+0xf79/0x10c0 kernel/locking/lockdep.c:1251 __lock_acquire+0x105/0x5410 kernel/locking/lockdep.c:4894 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:368 [inline] ath9k_wmi_event_tasklet+0x203/0x3f0 drivers/net/wireless/ath/ath9k/wmi.c:172 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:783 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:920 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:912 smpboot_thread_fn+0x548/0x8c0 kernel/smpboot.c:164 kthread+0x38b/0x460 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13 at drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:656 spin_unlock_bh include/linux/spinlock.h:408 [inline] WARNING: CPU: 0 PID: 13 at drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:656 ath9k_htc_check_wake_queues drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:76 [inline] WARNING: CPU: 0 PID: 13 at drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:656 ath9k_htc_txstatus+0x2d1/0x460 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:686 Modules linked in: CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.15.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ath9k_htc_txstatus+0x2d1/0x460 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:656 Code: 06 0f 8e 9e 01 00 00 41 0f b6 84 24 88 04 00 00 a8 01 75 1d 48 83 c4 38 48 89 ef 5b 5d 41 5c 41 5d 41 5e 41 5f e9 bf 31 cc 03 <0f> 0b e9 de fd ff ff 49 8d 7c 24 08 83 e0 fe 48 89 fa 41 88 84 24 RSP: 0018:ffffc90000d27d20 EFLAGS: 00010202 RAX: 000000000000001c RBX: ffff88807de8dc0d RCX: fffffbfff14c3009 RDX: 1ffffffff14c3009 RSI: ffff88807de8dc0c RDI: ffff8880776b32a0 RBP: ffff88807de8dc0c R08: 0000000000000000 R09: 0000000000000000 R10: ffffed100eed6741 R11: 000000000007a089 R12: ffff8880776b32a0 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88807b3e63c0 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4240511740 CR3: 000000006f0eb000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ath9k_wmi_event_tasklet+0x2b1/0x3f0 drivers/net/wireless/ath/ath9k/wmi.c:179 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:783 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 run_ksoftirqd kernel/softirq.c:920 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:912 smpboot_thread_fn+0x548/0x8c0 kernel/smpboot.c:164 kthread+0x38b/0x460 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295