bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207 building syzkaller on 09efdd63fa8ebdadeccc841b699026e73081f7e0 testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 021b3ec7cd11713e900ca656ee444621ec4cf1bd566173864de1bb77192f8ed7 all runs: crashed: SYZFAIL: syz_usbip_server_init: socketpair failed testing current HEAD 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e testing commit 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 67120386986813a7468006e495f648392dfef6fb671287ffa49cde62a165a894 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 25m7.995698019s (build: 16m21.511844309s, test: 8m17.462328682s) the crash still happens on HEAD commit msg: Linux 4.14.254 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout