bisecting fixing commit since ce4d1565392b2dc8ea33032615c934c3dc6a32bb
building syzkaller on 6c236867ce33c0c16b102e02a08226d7eb9b2046
testing commit ce4d1565392b2dc8ea33032615c934c3dc6a32bb
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 87bb867b1471f17b3af2b3b2c2d8618ff09bd6a3a2902a5c0be1a45dd9a5fb8d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 690285a9380d183e6d286d90e458fa7c3f97eca2
testing commit 690285a9380d183e6d286d90e458fa7c3f97eca2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b6dfe03c588dd77415939eb02e6d09136cbf5066fdd5718117da18f67a40800e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m29.119964777s (build: 19m58.198189304s, test: 6m6.899183799s)
the crash still happens on HEAD
commit msg: Linux 4.14.279
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