bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on c2c1d1dd603b7d66d283253ffbd61b8692712bd2
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 15f84f939ca11ee2ef5e35c5be7f95d0ca15d138b3bb400e4e67a3f401b6eeba
run #0: crashed: possible deadlock in sk_clone_lock
run #1: crashed: possible deadlock in sk_clone_lock
run #2: crashed: possible deadlock in sk_clone_lock
run #3: crashed: possible deadlock in sk_clone_lock
run #4: crashed: possible deadlock in sk_clone_lock
run #5: crashed: possible deadlock in sk_clone_lock
run #6: crashed: possible deadlock in sk_clone_lock
run #7: crashed: possible deadlock in sk_clone_lock
run #8: crashed: possible deadlock in sk_clone_lock
run #9: crashed: possible deadlock in sk_clone_lock
run #10: crashed: possible deadlock in sk_clone_lock
run #11: crashed: possible deadlock in sk_clone_lock
run #12: crashed: possible deadlock in sk_clone_lock
run #13: crashed: possible deadlock in sk_clone_lock
run #14: crashed: possible deadlock in sk_clone_lock
run #15: crashed: possible deadlock in sk_clone_lock
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8ed915cc4e1079de6b237ae346dfaa49613071b5010defc896b86196aacfc65a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 29m49.002712276s (build: 14m52.114383115s, test: 14m33.218078422s)
the crash still happens on HEAD
commit msg: Linux 4.14.280
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout