bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 512651955aad51ef5f916aa2d84732e84d1c5e48
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a3c7f03d5696d5ae5bea2716ef3e7a32c3fd8a698392ddd10d47805310674d71
all runs: crashed: general protection fault in tcp_splice_read
testing current HEAD 4ba8e26127c393c32776dff6d79c5b82de6dc542
testing commit 4ba8e26127c393c32776dff6d79c5b82de6dc542
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 63b21b146cd9e3aa8233fb17bfcebc4b41ba6ca24e179055f4de403e488ac0c4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m51.68414032s (build: 18m49.713003341s, test: 6m33.133369418s)
the crash still happens on HEAD
commit msg: Linux 4.14.262
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1