bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 512651955aad51ef5f916aa2d84732e84d1c5e48
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fb0d8ffc031e5aeb2ebbf8976457a1400aed25e4f812d57c5049d9db29d55d90
all runs: crashed: general protection fault in tcp_splice_read
testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8
testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 6058aaeff8491000e5bfd85e55bf113fa393491900c4402104d2fe857c885a6a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m21.313515001s (build: 18m31.37465828s, test: 6m18.341393847s)
the crash still happens on HEAD
commit msg: Linux 4.14.280
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1