ci2 starts bisection 2023-02-19 18:25:35.137480249 +0000 UTC m=+72501.208600134 bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae building syzkaller on bca53db974f570410921f59b8c2c59a3d263cb44 ensuring issue is reproducible on original commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: e7a42325c4329f2fc2b8aae851d649f1cfec2e58ee22c79395475837744bb8cf run #0: crashed: WARNING in md_ioctl run #1: crashed: WARNING in md_ioctl run #2: crashed: WARNING in md_ioctl run #3: crashed: WARNING in md_ioctl run #4: crashed: WARNING in md_ioctl run #5: crashed: WARNING in md_ioctl run #6: crashed: WARNING in md_ioctl run #7: crashed: WARNING in md_ioctl run #8: crashed: WARNING in md_ioctl run #9: crashed: WARNING in md_ioctl run #10: crashed: WARNING in md_ioctl run #11: crashed: WARNING in md_ioctl run #12: crashed: KASAN: use-after-free Read in disk_unblock_events run #13: crashed: WARNING in md_ioctl run #14: crashed: WARNING in md_ioctl run #15: crashed: WARNING in md_ioctl run #16: crashed: WARNING in md_ioctl run #17: crashed: WARNING in md_ioctl run #18: crashed: KASAN: use-after-free Read in disk_unblock_events run #19: crashed: WARNING in md_ioctl testing current HEAD a8ad60f2af5884921167e8cede5784c7849884b2 testing commit a8ad60f2af5884921167e8cede5784c7849884b2 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 2ab6f1e6dbe2e068802480c4d8b66d5aa3f1c9d572d50b818522fab4850baf15 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 25m48.036938196s (build: 16m5.223269645s, test: 7m26.899436392s) the crash still happens on HEAD commit msg: Linux 4.14.305 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout