bisecting fixing commit since 964f3712e6a7447d9d3203f2be3f6c50e78ea179
building syzkaller on 4d1b57d4d1aa7f8938163f8debd9293c062482b0
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e15929d57c5596abf104116e33ea3cc59ab1da127a253dc264b1b76eff906f5c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD a6ca7c65b1376f7bb14979cb745d3da73c8de948
testing commit a6ca7c65b1376f7bb14979cb745d3da73c8de948
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ed443e0c031ccb74c4c9e3e5dc64a01874219feae8db13eeeed148ee8fea37fb
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m46.735961543s (build: 21m40.371881647s, test: 6m22.610767938s)
the crash still happens on HEAD
commit msg: Linux 4.14.260
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout