bisecting fixing commit since 74766a973637a02c32c04c1c6496e114e4855239
building syzkaller on c6ff3e051f85ae554460141ba2ece6dbe9a36bb9
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 64d7c7aa87c5572b9c70784d3e77993e46d79b320eb974c5c60816156d528628
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD f051383ef03bde49ca992f297ec80757a702e774
testing commit f051383ef03bde49ca992f297ec80757a702e774
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 03461cceb9a14c2e7d95fc95ddc79597d2800956381e0c42ac3f9c3670052be4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 18m15.634438182s (build: 11m57.111491138s, test: 5m59.602217916s)
the crash still happens on HEAD
commit msg: Linux 4.14.285
crash: unregister_netdevice: waiting for DEV to become free
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
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