bisecting fixing commit since cf256fbcbe347b7d0ff58fe2dfa382a156bd3694 building syzkaller on c0ced5570c6505a80235b64884c93e89733b77f3 testing commit cf256fbcbe347b7d0ff58fe2dfa382a156bd3694 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 9ffe6c7fb1689db1802303ba594195958532b54a12dbc945c18ee0bb2a34c8b4 run #0: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #1: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #2: crashed: BUG: soft lockup in hci_sock_release run #3: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #4: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #5: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #6: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #7: crashed: BUG: soft lockup in hci_sock_release run #8: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #9: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #10: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #11: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #12: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #13: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #14: crashed: BUG: soft lockup in hci_sock_release run #15: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #16: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #17: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #18: crashed: BUG: soft lockup in mgmt_set_connectable_complete run #19: crashed: BUG: soft lockup in hci_sock_release testing current HEAD 501eec4f9e138b958fc7438e7a745c0d6a7c68b3 testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 9776cc6d4e12313a102c1ad1da365c321178afb3438d0ec89d41985a1ca4db3d all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 24m4.487203511s (build: 16m17.55529404s, test: 7m2.418780814s) the crash still happens on HEAD commit msg: Linux 4.14.281 crash: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci2 command 0x040f 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: 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 Bluetooth: hci2 command 0x0419 tx timeout