bisecting fixing commit since b86ee2b7ae42b6b37a918b66236608e2cc325f59
building syzkaller on 4ebb27982f8984ed57466f87099acc0b250a1b5c
testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b5b0d883ccdeb22c8fa2dc3b8646c447d843b3565298d4cf705f318862c53cf1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD e3a56aaade89bc89f33baec11b12538fc22536e2
testing commit e3a56aaade89bc89f33baec11b12538fc22536e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f78c693ae9cbadad1b7a5df8c1e72a1a0fad47ff00e6f8c55d1bed2bbaf3e85f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m22.804430625s (build: 18m19.866185126s, test: 6m14.066712716s)
the crash still happens on HEAD
commit msg: Linux 4.14.277
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout