bisecting fixing commit since bd634aa6416382439890b78f7be0023020a86207
building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9
testing commit bd634aa6416382439890b78f7be0023020a86207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b5fd3e71d46126221c9168cf0746e119c4a821386cc506f33bbabe688e8e6984
run #0: crashed: WARNING: locking bug in __sb_end_write
run #1: crashed: WARNING: locking bug in __sb_end_write
run #2: crashed: WARNING: locking bug in __sb_end_write
run #3: crashed: WARNING: locking bug in __sb_end_write
run #4: crashed: WARNING: locking bug in __sb_end_write
run #5: crashed: WARNING: locking bug in __sb_end_write
run #6: crashed: WARNING: locking bug in __sb_end_write
run #7: crashed: WARNING: locking bug in __sb_end_write
run #8: crashed: WARNING: locking bug in __sb_end_write
run #9: crashed: WARNING: locking bug in __sb_end_write
run #10: crashed: WARNING: locking bug in __sb_end_write
run #11: OK
run #12: crashed: WARNING: locking bug in __sb_end_write
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
testing commit f11944f1aa1cda3fd8b4edc71e3cf9dceb40234f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b404c000fdb80efbd9eccf61dffe4ed224429069c11cfcca79a5c81b395169db
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 34m15.764547005s (build: 21m48.498966879s, test: 11m57.960227862s)
the crash still happens on HEAD
commit msg: Linux 4.14.248
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout