bisecting fixing commit since d7e78d08fa77acdea351c8f628f49ca9a0e1029a
building syzkaller on d5a3ae1f760e7cb2cd5a721d9645ae22eae114fe
testing commit d7e78d08fa77acdea351c8f628f49ca9a0e1029a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 367d6b7cd7c602c2c5f5f270067da4c4e04261fee071ec4f9952c62866dea931
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 __blkdev_get
run #4: crashed: INFO: task hung in __blkdev_get
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_put
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 lo_ioctl
run #14: crashed: INFO: task hung in lo_ioctl
run #15: crashed: INFO: task hung in lo_ioctl
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 66722c42ec916e92cadda46316f8f6e3fdcaedc6
testing commit 66722c42ec916e92cadda46316f8f6e3fdcaedc6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4074be44c6f5bb3b33f8bdbe96e40731249438f1f264655b44659d1257bef072
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m43.054462775s (build: 24m30.604679927s, test: 10m24.925731357s)
the crash still happens on HEAD
commit msg: Linux 4.14.256
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 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: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 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: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout