bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
building syzkaller on 04201c0669446145fd9c347c5538da0ca13ff29b
testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9856be1ef5e860559daa431c263b1280afd111af09792642a05632936440f8e1
run #0: crashed: WARNING in process_one_work
run #1: crashed: WARNING: ODEBUG bug in slave_kobj_release
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 __alloc_skb
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 e853993d29aa42ac4b3c2912db975a0a66d7a5b0
testing commit e853993d29aa42ac4b3c2912db975a0a66d7a5b0
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: bbb5b229a40d6d463192c2221769f67c8c4ca46d02fe168a28d1fc0277ecb304
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m8.141128064s (build: 14m4.014603987s, test: 12m41.519933118s)
the crash still happens on HEAD
commit msg: Linux 4.14.269
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout