bisecting fixing commit since ad8397a84e1e425e3f8221638cee2bfa237d9b2c
building syzkaller on 858ea628800647d5e5b68b11441e42b8ef5652c1
testing commit ad8397a84e1e425e3f8221638cee2bfa237d9b2c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1e02268afc3e7cd823c8d022fec08d2cb8735a2d0a18fea2dadbe5bf19a0218e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
testing commit 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 68d8d27ea71eb049dd47169782a4a71417214a498d470193677dfd96d1228ceb
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m46.482431629s (build: 17m47.473917064s, test: 6m27.679113841s)
the crash still happens on HEAD
commit msg: Linux 4.14.259
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 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: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout