bisecting fixing commit since 313e82bbefb3d1d926858b58092f5d50f41d924d
building syzkaller on 8f5a7b8cde529e0a19a53f79bdf9c6cad306827b
testing commit 313e82bbefb3d1d926858b58092f5d50f41d924d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e2e8ae873d87d7c551e90b9639a07d2ed2ab326041fe1a39ec4ab18932f6b96e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 46914f96189be290174e378c6bf9ccadfdb9ca1e
testing commit 46914f96189be290174e378c6bf9ccadfdb9ca1e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 935afe3f4d130f722d8d9ff978709e73dfd1ce78389309a9ebf70ea13cdb3c8d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m38.903804547s (build: 19m48.686957902s, test: 6m14.636479091s)
the crash still happens on HEAD
commit msg: Linux 4.14.243
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout