bisecting fixing commit since 2762b48e9611529239da2e68cba908dbbec9805f
building syzkaller on 63631df1539816bc62c7be40779c5f3e23b23b2f
testing commit 2762b48e9611529239da2e68cba908dbbec9805f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 113612e3d96dab290ab9cedc7c85b5a22e385f5e29c4d3ab50c5d6ffda00d21d
all runs: crashed: general protection fault in hsr_dev_change_mtu
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f74d5fe868375714b93b087256a5b9866773b30159d20d17c5ad3b0c5a7c0bf1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m36.952167902s (build: 20m24.352129442s, test: 6m29.395358862s)
the crash still happens on HEAD
commit msg: Linux 4.14.280
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