bisecting fixing commit since 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
building syzkaller on eee80d3cd37ea7ebd6aab85c117564a4bae5bc4e
testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0f16676538d74226948a25967bba6418628cda6b28d4272e55a4a8aca0d03a79
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: 655a2917b6be47327628a872f21e615be3c1e43390586350d832e650d8f6762f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 19m54.933125645s (build: 12m46.831783615s, test: 6m35.749428522s)
the crash still happens on HEAD
commit msg: Linux 4.14.286
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout