bisecting fixing commit since 964f3712e6a7447d9d3203f2be3f6c50e78ea179
building syzkaller on fd5118098a3df4301eba91aeca37119ccb209403
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b82c198337d8c11e5621b154b829f4ed290ee3562344af2f5959eb6bc5fff7d4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD fa33f9094f36943ea32f7fbe323293b62e96151d
testing commit fa33f9094f36943ea32f7fbe323293b62e96151d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e2ac837b3a4fbfc304f700ff07be6f9f253a52a717342d8692ae8009cec3bb04
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m24.900838905s (build: 19m43.193112282s, test: 6m12.048802941s)
the crash still happens on HEAD
commit msg: Linux 4.14.268
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout