bisecting fixing commit since 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
building syzkaller on 838e7e2cd9228583ca33c49a39aea4d863d3e36d
testing commit 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 61fc3426f29efa2a09aa37fa80216ef8a5316e2cf3b4c4659305d9a158ba41de
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 1048779a1d7dcf0b5c150188decafa21c19821e4
testing commit 1048779a1d7dcf0b5c150188decafa21c19821e4
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 46d438666baf9cf50864b4dcdf4258fc9a629080469ef8454b1347112e0696b1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 19m45.268659218s (build: 13m0.068936952s, test: 6m11.882193552s)
the crash still happens on HEAD
commit msg: Linux 4.14.287
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout