bisecting fixing commit since 01fd1694b93c92ad54fa684dac9c8068ecda8288
building syzkaller on db7c31ca79638f50cbb920add433b46cd66e9890
testing commit 01fd1694b93c92ad54fa684dac9c8068ecda8288 with gcc (GCC) 8.4.1 20210217
kernel signature: ada01a55183b78407a231bd62a3a1518c51250dfe3fc04e162270ac472b9f86c
all runs: crashed: general protection fault in scatterwalk_copychunks
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: 3743c58e919081d082fd6e6b84f2f40ad94786039d903358fc871c97c3887c7f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m26.683370099s (build: 16m26.343310639s, test: 6m21.255552128s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
crash: unregister_netdevice: waiting for DEV to become free
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