bisecting fixing commit since 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
building syzkaller on e4f103c49590d5ff0c7e416ade15a99f54029f8d
testing commit 8ee0807eedf3bc60c8a47a7dd95387102bcfd063
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 80b404859c2336d0e3099b7522db30b05691f198805a51c4343d9b2019af4e7c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD eb045674aab31aa55a4f9aec27cce36e3d946a21
testing commit eb045674aab31aa55a4f9aec27cce36e3d946a21
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: cd6828755199230ee8bd172237826a306acb2089b3e0ec810e16aca1f2f6914f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m25.269767668s (build: 19m9.363446853s, test: 6m43.13784641s)
the crash still happens on HEAD
commit msg: Linux 4.14.272
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1