bisecting fixing commit since d7e78d08fa77acdea351c8f628f49ca9a0e1029a
building syzkaller on d5a3ae1f760e7cb2cd5a721d9645ae22eae114fe
testing commit d7e78d08fa77acdea351c8f628f49ca9a0e1029a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8f04bcf8ff975ec62748e0ed9f360300887ce4b7e23b6189439fff3fa245a0ad
run #0: crashed: INFO: task hung in blkdev_put
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 __blkdev_get
run #6: crashed: INFO: task hung in blkdev_put
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 lo_ioctl
run #10: crashed: INFO: task hung in lo_ioctl
run #11: crashed: INFO: task hung in __blkdev_get
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 cd529693461026636f76d0395a42cb2439bbd368
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6dbeb1c0389edc81b89e001a599fe9217de74d02fd3c8719d92d3b912e593e1a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m34.518066644s (build: 17m14.654210951s, test: 10m48.642446468s)
the crash still happens on HEAD
commit msg: Linux 4.14.253
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: hci2 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: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout