bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b90b10b070916870e6c131a8094ef04bc2dd941ee8a1c6f15a766868b2b2a812
run #0: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #1: crashed: WARNING in process_one_work
run #2: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #3: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #4: crashed: WARNING in batadv_iv_send_outstanding_bat_ogm_packet
run #5: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #6: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #7: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #8: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #9: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #10: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #11: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #12: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #13: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #14: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #15: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #16: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #17: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #18: crashed: WARNING: ODEBUG bug in slave_kobj_release
run #19: crashed: WARNING: ODEBUG bug in slave_kobj_release
testing current HEAD 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
testing commit 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5004cc1a6db5959f365ed1241367a8bcc9d6193155304e42d4976f1afc09f077
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m7.422431112s (build: 14m54.297671343s, test: 12m44.491241039s)
the crash still happens on HEAD
commit msg: Linux 4.14.249
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout