bisecting fixing commit since d7e78d08fa77acdea351c8f628f49ca9a0e1029a
building syzkaller on d5a3ae1f760e7cb2cd5a721d9645ae22eae114fe
testing commit d7e78d08fa77acdea351c8f628f49ca9a0e1029a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 63ea4fa9258568e8ffb60ee89df48001b19cd7a29f1442cdf5907ebfa71fca75
run #0: crashed: INFO: task hung in __blkdev_get
run #1: crashed: INFO: task hung in __blkdev_get
run #2: crashed: INFO: task hung in __blkdev_get
run #3: crashed: INFO: task hung in __get_super
run #4: crashed: INFO: task hung in lo_ioctl
run #5: crashed: INFO: task hung in lo_ioctl
run #6: crashed: INFO: task hung in lo_ioctl
run #7: crashed: INFO: task hung in lo_ioctl
run #8: crashed: INFO: task hung in lo_ioctl
run #9: crashed: INFO: task hung in __blkdev_get
run #10: crashed: INFO: task hung in __blkdev_get
run #11: crashed: INFO: task hung in lo_ioctl
run #12: crashed: INFO: task hung in lo_ioctl
run #13: crashed: INFO: task hung in __blkdev_get
run #14: crashed: INFO: task hung in lo_ioctl
run #15: crashed: INFO: task hung in __blkdev_get
run #16: crashed: INFO: task hung in lo_ioctl
run #17: crashed: INFO: task hung in lo_ioctl
run #18: crashed: INFO: task hung in lo_ioctl
run #19: crashed: INFO: task hung in lo_ioctl
testing current HEAD ce4d1565392b2dc8ea33032615c934c3dc6a32bb
testing commit ce4d1565392b2dc8ea33032615c934c3dc6a32bb
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 32455aa27211d196e674661aea9bf56a6ef339c42d7a611d5cf9f2b73cb23c5a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m41.555918359s (build: 16m36.287754953s, test: 10m11.03430823s)
the crash still happens on HEAD
commit msg: Linux 4.14.241
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout