bisecting fixing commit since bfdef05c8da46b022172695aa493cff7ac667a4b
building syzkaller on 6acc789ad3f6c04319764f414ebb1a08e6145332
testing commit bfdef05c8da46b022172695aa493cff7ac667a4b
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 236683fc2418c2f9d36fdad160659eb7509b150a7fea2f123e1ffb6a484b21c2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 74766a973637a02c32c04c1c6496e114e4855239
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 181384882ac754e2261f4c0467af401eda364aa6a250a1ccbc5161ebd0b45b26
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m1.016478291s (build: 13m47.907741476s, test: 6m44.134522568s)
the crash still happens on HEAD
commit msg: Linux 4.14.275
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
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1