ci2 starts bisection 2022-09-15 16:18:51.953978692 +0000 UTC m=+34126.699026503
bisecting fixing commit since 6b6446efedb27c2766745a04f9b5d4449f51391d
building syzkaller on cba33199be220cbf61f7c0c8223d88a25a913d6f
testing commit 6b6446efedb27c2766745a04f9b5d4449f51391d gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 24ac73ae7c6f50f9e1a2319707c4e87e0f3b02e480a3b9f9fdbddf41b5860d40
run #0: crashed: possible deadlock in blkdev_put
run #1: crashed: possible deadlock in blkdev_put
run #2: crashed: possible deadlock in __get_super
run #3: crashed: possible deadlock in __get_super
run #4: crashed: possible deadlock in __get_super
run #5: crashed: possible deadlock in __get_super
run #6: crashed: possible deadlock in __get_super
run #7: crashed: possible deadlock in __get_super
run #8: crashed: possible deadlock in __get_super
run #9: crashed: possible deadlock in __get_super
run #10: crashed: possible deadlock in blkdev_put
run #11: crashed: possible deadlock in __get_super
run #12: crashed: possible deadlock in blkdev_put
run #13: crashed: possible deadlock in __get_super
run #14: crashed: possible deadlock in __get_super
run #15: crashed: possible deadlock in __get_super
run #16: crashed: possible deadlock in __get_super
run #17: crashed: possible deadlock in __get_super
run #18: crashed: possible deadlock in __get_super
run #19: crashed: INFO: task hung in blkdev_put
testing current HEAD 5df8b473517762e16c5a97c25941897640926a63
testing commit 5df8b473517762e16c5a97c25941897640926a63 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3cd62df87e6b7ce67bca01eb1e953738074855421fbee46055212c6e6d9d39ec
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m59.39084251s (build: 21m12.659199663s, test: 10m0.407009479s)
the crash still happens on HEAD
commit msg: Linux 4.14.293
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 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: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 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: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout