ci2 starts bisection 2022-11-09 05:09:32.768343213 +0000 UTC m=+16008.579694160 bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207 building syzkaller on ed7d41c582d6f194ff35353d8bfdf7681dc0718e ensuring issue is reproducible on original commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 480479c417dd6a8b6d432b0bcd1e2f94dafc1989e04395a645a41eed22f5e8f3 run #0: crashed: INFO: task hung in __blkdev_get run #1: crashed: INFO: task hung in blkdev_reread_part run #2: crashed: INFO: task hung in lo_open run #3: crashed: INFO: task hung in lo_open run #4: crashed: INFO: task hung in lo_release run #5: crashed: INFO: task hung in lo_release run #6: crashed: INFO: task hung in lo_release run #7: crashed: INFO: task hung in lo_release run #8: crashed: INFO: task hung in loop_control_ioctl run #9: crashed: INFO: task hung in lo_open run #10: crashed: INFO: task hung in lo_open run #11: crashed: INFO: task hung in lo_open run #12: crashed: INFO: task hung in lo_open run #13: crashed: INFO: task hung in lo_open run #14: crashed: INFO: task hung in lo_open run #15: crashed: INFO: task hung in lo_open run #16: crashed: INFO: task hung in loop_control_ioctl run #17: crashed: INFO: task hung in lo_release run #18: crashed: INFO: task hung in lo_open run #19: crashed: INFO: task hung in lo_open testing current HEAD a901bb6c7db7e6aef864ee2ba62a2a02c1421e48 testing commit a901bb6c7db7e6aef864ee2ba62a2a02c1421e48 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: b8c9274d5bad78ae69d2958e12c74ea5c93d37220f7a3950d51990ff571f3acf all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 25m35.520649326s (build: 14m28.497281064s, test: 10m40.221067202s) the crash still happens on HEAD commit msg: Linux 4.14.298 crash: unregister_netdevice: waiting for DEV to become free IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready 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: hci0 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout