bisecting fixing commit since 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
building syzkaller on efe0f24dd913d90b2c6a2dbe7b8dac779c266144
testing commit 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a86b5f6a81ebe93787e9971de694cbd508a6833b95638867a14f38a021837f3a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD c01d4d1b885d96a7c8c27d629abeb918ca897dbe
testing commit c01d4d1b885d96a7c8c27d629abeb918ca897dbe
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 53ca6b92159ad409617bd3dcd9ac1b9d9c138b64837f96b2ff4fcad82bf9825d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m18.5393907s (build: 17m56.707236199s, test: 6m38.146805342s)
the crash still happens on HEAD
commit msg: Linux 4.14.257
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout