bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on c2c1d1dd603b7d66d283253ffbd61b8692712bd2
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 090d236448d973f97a7e33e774f62db667a771a17a24c65d99658fc0c1175eab
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: possible deadlock in sk_clone_lock
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: inconsistent lock state in free_huge_page
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 2760370b164918bd9311e6bf445cf4c118d3463c
testing commit 2760370b164918bd9311e6bf445cf4c118d3463c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 284dc6405db89c2025e1368d9b3657ac97ff995c876090859c6e9ab65757e4d6
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m39.393876335s (build: 18m34.548027563s, test: 12m41.045995026s)
the crash still happens on HEAD
commit msg: Linux 4.14.252
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout