bisecting fixing commit since 2d2791fce891fc20709232d49a6bae075b9a77f8
building syzkaller on 52e3731913ab2677be27c29ed8142b04e8f28521
testing commit 2d2791fce891fc20709232d49a6bae075b9a77f8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1baa6828f613da422c9110f144426083a4d304ae0ac2586ab4b79ee68e68e71f
run #0: OK
run #1: crashed: INFO: task hung in nbd_ioctl
run #2: crashed: INFO: task hung in nbd_ioctl
run #3: crashed: INFO: task hung in nbd_ioctl
run #4: crashed: INFO: task hung in nbd_ioctl
run #5: crashed: INFO: task hung in nbd_ioctl
run #6: crashed: INFO: task hung in nbd_ioctl
run #7: crashed: INFO: task hung in nbd_ioctl
run #8: crashed: INFO: task hung in nbd_ioctl
run #9: crashed: INFO: task hung in nbd_ioctl
run #10: crashed: INFO: task hung in nbd_ioctl
run #11: crashed: INFO: task hung in nbd_ioctl
run #12: crashed: INFO: task hung in nbd_ioctl
run #13: crashed: INFO: task hung in nbd_ioctl
run #14: crashed: INFO: task hung in nbd_ioctl
run #15: crashed: INFO: task hung in nbd_ioctl
run #16: crashed: INFO: task hung in nbd_ioctl
run #17: crashed: INFO: task hung in nbd_ioctl
run #18: crashed: INFO: task hung in nbd_ioctl
run #19: crashed: INFO: task hung in nbd_ioctl
testing current HEAD a35d65bedfbc38cffe2701798cd6810bbdf07892
testing commit a35d65bedfbc38cffe2701798cd6810bbdf07892
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1318ec10fc3c6f1e77052e8517b1673da47a71dcc1ca148a362a2a3ccfd6c262
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m59.686139577s (build: 15m29.954449283s, test: 10m19.945751377s)
the crash still happens on HEAD
commit msg: Linux 4.14.267
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 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 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout