bisecting fixing commit since b8f3be299d5176348b15cc59d55b85faa3dece68
building syzkaller on c885789257c76ea4479ea36282f5e0a2c7861e26
testing commit b8f3be299d5176348b15cc59d55b85faa3dece68
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: eeed32a87b63388887cce84137158f549eac52d966cd467f366df33c6644e514
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD ed2e96e119365437d6aa26a8a13eb39f77a43542
testing commit ed2e96e119365437d6aa26a8a13eb39f77a43542
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 57e4a147e985aca3b72627894a879e4ff52b69d82d791d6376d2d3c7a9d36305
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m49.878656676s (build: 16m57.470657117s, test: 6m31.216466759s)
the crash still happens on HEAD
commit msg: Linux 4.14.286
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout