bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 512651955aad51ef5f916aa2d84732e84d1c5e48
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: dade094296db9a7a4f5f78151a2e20ee124898ef63a575a95f07e7162b2467d6
all runs: crashed: general protection fault in tcp_splice_read
testing current HEAD 9dfbac0e6b8600043de8dc85ed072f5f1342dc15
testing commit 9dfbac0e6b8600043de8dc85ed072f5f1342dc15
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ec6c4153ce845133327a7cbd2ff28a18330e507564d176d48203e24fcdefa759
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m35.105199808s (build: 23m31.722887608s, test: 6m28.905532552s)
the crash still happens on HEAD
commit msg: Linux 4.14.258
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1