ci2 starts bisection 2022-10-20 07:21:00.615069783 +0000 UTC m=+163061.243381246 bisecting fixing commit since 6b6446efedb27c2766745a04f9b5d4449f51391d building syzkaller on cba33199be220cbf61f7c0c8223d88a25a913d6f ensuring issue is reproducible on original commit 6b6446efedb27c2766745a04f9b5d4449f51391d testing commit 6b6446efedb27c2766745a04f9b5d4449f51391d gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: fe3a23a361a1c29670e24e46566900bccee3134a2cebd7e0ace240a32f1486e0 run #0: crashed: possible deadlock in __get_super run #1: crashed: possible deadlock in __get_super run #2: crashed: possible deadlock in __get_super run #3: crashed: possible deadlock in __get_super run #4: crashed: possible deadlock in __get_super run #5: crashed: possible deadlock in blkdev_put run #6: crashed: possible deadlock in blkdev_put run #7: crashed: possible deadlock in blkdev_put run #8: crashed: possible deadlock in __get_super run #9: crashed: possible deadlock in __get_super run #10: crashed: possible deadlock in __get_super run #11: crashed: possible deadlock in __get_super run #12: crashed: possible deadlock in __get_super run #13: crashed: possible deadlock in __get_super run #14: crashed: possible deadlock in __get_super run #15: crashed: possible deadlock in blkdev_put run #16: crashed: possible deadlock in __get_super run #17: crashed: INFO: task hung in blkdev_put run #18: crashed: INFO: task hung in blkdev_put run #19: crashed: INFO: task hung in blkdev_put testing current HEAD 9d5c0b3a8e1a8b6c4969f630803103978e8d17b6 testing commit 9d5c0b3a8e1a8b6c4969f630803103978e8d17b6 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 09aa48788163f70ea0f9891f947f50894d6ac4ded76396b6505b5b17afa9ff3a all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 33m43.647201804s (build: 22m23.849842552s, test: 10m41.017024922s) the crash still happens on HEAD commit msg: Linux 4.14.295 crash: unregister_netdevice: waiting for DEV to become free IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready Bluetooth: hci0 command 0x0409 tx timeout can: request_module (can-proto-0) failed. 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: hci4 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout