bisecting fixing commit since a6ca7c65b1376f7bb14979cb745d3da73c8de948
building syzkaller on e1768e9c12f6025bdcfe8a957808608d499692b8
testing commit a6ca7c65b1376f7bb14979cb745d3da73c8de948
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 870e703381d10ba6029158dff3e1e6165f2b6031a69beea5cdadc27cca221ea0
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 35baea212ab09bdf1cc8ced366ef67876a0d408471cb6b5e2470302af87c75f5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m23.820164682s (build: 15m5.03140613s, test: 6m40.374190512s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout