bisecting fixing commit since 549738f15da0e5a00275977623be199fbbf7df50
building syzkaller on 5ef9c29141f85f210b326ce68718498ae0c1fd35
testing commit 549738f15da0e5a00275977623be199fbbf7df50 with gcc (GCC) 8.1.0
kernel signature: 694cf5204f661c3e715be5602dcff2ac3fbb6e82ca9708552715e51d8c3eec87
run #0: crashed: unexpected kernel reboot
run #1: crashed: INFO: trying to register non-static key in call_timer_fn
run #2: crashed: unexpected kernel reboot
run #3: crashed: INFO: trying to register non-static key in inode_doinit_with_dentry
run #4: crashed: INFO: trying to register non-static key in unmap_page_range
run #5: crashed: WARNING: ODEBUG bug in asm_call_irq_on_stack
run #6: crashed: unexpected kernel reboot
run #7: crashed: BUG: unable to handle kernel paging request in run_timer_softirq
run #8: crashed: BUG: unable to handle kernel paging request in run_timer_softirq
run #9: crashed: unexpected kernel reboot
testing current HEAD 614cb5894306cfa2c7d9b6168182876ff5948735
testing commit 614cb5894306cfa2c7d9b6168182876ff5948735 with gcc (GCC) 8.1.0
kernel signature: 7c8a2fd29c5b2cb757e08e73b6e96ed94fd09879b09968fad0e395f285e924b7
run #0: crashed: unexpected kernel reboot
run #1: crashed: unexpected kernel reboot
run #2: crashed: INFO: trying to register non-static key in psi_group_change
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in add_grec
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in sta_info_insert_rcu
run #5: crashed: unexpected kernel reboot
run #6: crashed: unexpected kernel reboot
run #7: crashed: kernel panic: corrupted stack end in corrupted
run #8: crashed: BUG: unable to handle kernel paging request in sta_info_get_bss
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in process_one_work
revisions tested: 2, total time: 16m28.450619014s (build: 10m25.031821768s, test: 5m27.975776285s)
the crash still happens on HEAD
commit msg: Merge tag 'acpi-5.11-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
crash: BUG: unable to handle kernel NULL pointer dereference in process_one_work
Bluetooth: hci5: command 0x0419 tx timeout
BUG: kernel NULL pointer dereference, address: 0000000000000040
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 6164 Comm: kworker/1:4 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:netif_running include/linux/netdevice.h:3590 [inline]
RIP: 0010:nsim_dev_trap_report_work+0x56/0x340 drivers/net/netdevsim/dev.c:608
Code: 80 f6 02 01 4c 8b bb 98 00 00 00 48 8d 83 98 00 00 00 48 89 44 24 18 49 39 c7 0f 84 a8 02 00 00 49 8b 87 38 02 00 00 48 8b 10 <48> 8b 52 40 83 e2 01 0f 84 83 02 00 00 4c 8b 68 08 4d 85 ed 0f 84
RSP: 0018:ffffc9000021fde8 EFLAGS: 00010216
RAX: ffff888116ebebc0 RBX: ffff8881168a2a80 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff84315614 RDI: 0000000000000000
RBP: ffffc9000021fec8 R08: ffffffff824df530 R09: 0000000000000000
R10: ffffc9000021fde8 R11: 0000000000000001 R12: ffff888237d31e00
R13: 0000000000000000 R14: ffff888116d40e00 R15: ffff888116e16800
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000040 CR3: 0000000109249001 CR4: 00000000001706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x293/0x610 kernel/workqueue.c:2275
 worker_thread+0x38/0x380 kernel/workqueue.c:2421
 kthread+0x145/0x170 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Modules linked in:
CR2: 0000000000000040
---[ end trace f759e34c0c6829c3 ]---
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:netif_running include/linux/netdevice.h:3590 [inline]
RIP: 0010:nsim_dev_trap_report_work+0x56/0x340 drivers/net/netdevsim/dev.c:608
Code: 80 f6 02 01 4c 8b bb 98 00 00 00 48 8d 83 98 00 00 00 48 89 44 24 18 49 39 c7 0f 84 a8 02 00 00 49 8b 87 38 02 00 00 48 8b 10 <48> 8b 52 40 83 e2 01 0f 84 83 02 00 00 4c 8b 68 08 4d 85 ed 0f 84
RSP: 0018:ffffc9000021fde8 EFLAGS: 00010216
RAX: ffff888116ebebc0 RBX: ffff8881168a2a80 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff84315614 RDI: 0000000000000000
RBP: ffffc9000021fec8 R08: ffffffff824df530 R09: 0000000000000000
R10: ffffc9000021fde8 R11: 0000000000000001 R12: ffff888237d31e00
R13: 0000000000000000 R14: ffff888116d40e00 R15: ffff888116e16800
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000040 CR3: 0000000109249001 CR4: 00000000001706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400