bisecting fixing commit since 2762b48e9611529239da2e68cba908dbbec9805f
building syzkaller on 63631df1539816bc62c7be40779c5f3e23b23b2f
testing commit 2762b48e9611529239da2e68cba908dbbec9805f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d48838b9c8411cb4e485afa3f058b6841fbb4ca5aa86a971e412d346daf09a4a
all runs: crashed: general protection fault in hsr_dev_change_mtu
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1ca55145e7a164adfbddc9f40cc68c5daa4fabff8e865d52c97c90de8a452adf
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m9.767642153s (build: 16m57.845833263s, test: 6m28.577784016s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
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