bisecting fixing commit since 9dfbac0e6b8600043de8dc85ed072f5f1342dc15
building syzkaller on a938f0b814c3578d9608be02ef72b45d2b10cf4b
testing commit 9dfbac0e6b8600043de8dc85ed072f5f1342dc15
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: cd3aaf957fb0d22fadad907c030d1ff25ab8c575b22fc52849e125d71962e393
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD a35d65bedfbc38cffe2701798cd6810bbdf07892
testing commit a35d65bedfbc38cffe2701798cd6810bbdf07892
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a95773dade0a93f7f34f0381ee5a85d5c3e9a528ec2cf05f3b6af058782ac03f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m47.80687111s (build: 24m18.376475749s, test: 6m47.175396372s)
the crash still happens on HEAD
commit msg: Linux 4.14.267
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1