ci2 starts bisection 2023-01-25 13:58:56.606130753 +0000 UTC m=+173427.586714183 bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207 building syzkaller on f54a5c0916af7d798b204eb70c484f154d69e0a3 ensuring issue is reproducible on original commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6fa288183d46d7f83b849f7863107e5b1734540dcbde5252a37b3daee6cff679 all runs: crashed: WARNING: suspicious RCU usage in tcp_disconnect testing current HEAD 3949d16100044eeb6723eca03b1038b469fb9ae8 testing commit 3949d16100044eeb6723eca03b1038b469fb9ae8 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: f0a9dc27c7d4a830a7898b93c9f38d5dfbe973729b07e1b6e7ed260045dd6f07 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 21m53.605573494s (build: 13m26.345957693s, test: 6m33.403254503s) the crash still happens on HEAD commit msg: Linux 4.14.304 crash: unregister_netdevice: waiting for DEV to become free 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 unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 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 0x041b tx timeout Bluetooth: hci5 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: hci2 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout