bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on c2c1d1dd603b7d66d283253ffbd61b8692712bd2
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae with gcc (GCC) 8.4.1 20210217
kernel signature: d3f70a1d7498dcc498a162e90457f05692833d06d1aed4de2ab7b5fb9119bdb7
run #0: crashed: inconsistent lock state in free_huge_page
run #1: crashed: inconsistent lock state in free_huge_page
run #2: crashed: inconsistent lock state in free_huge_page
run #3: crashed: inconsistent lock state in free_huge_page
run #4: crashed: inconsistent lock state in free_huge_page
run #5: crashed: inconsistent lock state in free_huge_page
run #6: crashed: inconsistent lock state in free_huge_page
run #7: crashed: inconsistent lock state in free_huge_page
run #8: crashed: possible deadlock in sk_clone_lock
run #9: crashed: inconsistent lock state in free_huge_page
run #10: crashed: inconsistent lock state in free_huge_page
run #11: crashed: inconsistent lock state in free_huge_page
run #12: crashed: inconsistent lock state in free_huge_page
run #13: crashed: inconsistent lock state in free_huge_page
run #14: crashed: inconsistent lock state in free_huge_page
run #15: crashed: inconsistent lock state in free_huge_page
run #16: crashed: inconsistent lock state in free_huge_page
run #17: crashed: inconsistent lock state in free_huge_page
run #18: crashed: possible deadlock in sk_clone_lock
run #19: crashed: possible deadlock in sk_clone_lock
testing current HEAD 96afcb20f36f07683aaa342e592ea8ec76fd1fa6
testing commit 96afcb20f36f07683aaa342e592ea8ec76fd1fa6 with gcc (GCC) 8.4.1 20210217
kernel signature: 7b8322af773b4f1028b063e830b2158385d57eaa5aee69f1a6d329943d60d1c9
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m10.847284912s (build: 21m39.929291598s, test: 12m52.270646882s)
the crash still happens on HEAD
commit msg: Linux 4.14.233
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout