bisecting fixing commit since 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
building syzkaller on 6caa12e443d9f79aa2df67d44cdc6163eaa1e97f
testing commit 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 83a668bf0fb58cf39b3c5cf9decca623ddc520ed9c62e471915d430104405628
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 004bfaafc45ccc95366b37c9b9e7844cd5156368
testing commit 004bfaafc45ccc95366b37c9b9e7844cd5156368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1ee64fd5f9d8c0da7a9e4fa37092cf0de098c2a0454e7dd71d970057946ee8a2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m4.122332785s (build: 20m13.367335363s, test: 7m0.578332122s)
the crash still happens on HEAD
commit msg: Linux 4.14.273
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1