bisecting fixing commit since 46914f96189be290174e378c6bf9ccadfdb9ca1e
building syzkaller on 6972b10616d785401dea17cec890cca8916424a7
testing commit 46914f96189be290174e378c6bf9ccadfdb9ca1e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3874111c2ce2d82a16a41c07147630a90f4aa2671c4bdfb6e2d7259a536a2cbe
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD e3a56aaade89bc89f33baec11b12538fc22536e2
testing commit e3a56aaade89bc89f33baec11b12538fc22536e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 424092b34e82ffe55d04f479786501bb6df93a84f915835d9f9934db180a6c70
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m44.84404922s (build: 17m37.191100105s, test: 6m27.332809368s)
the crash still happens on HEAD
commit msg: Linux 4.14.277
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