bisecting fixing commit since 01fd1694b93c92ad54fa684dac9c8068ecda8288
building syzkaller on db7c31ca79638f50cbb920add433b46cd66e9890
testing commit 01fd1694b93c92ad54fa684dac9c8068ecda8288
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ada01a55183b78407a231bd62a3a1518c51250dfe3fc04e162270ac472b9f86c
all runs: crashed: general protection fault in scatterwalk_copychunks
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f63fc399b4de24c0bbd0747941d093357555ae063f520f3f510e4f23daf654c8
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 29m29.976144901s (build: 21m47.843964423s, test: 6m35.489331553s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1