bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207 building syzkaller on ad61f3714f0a5e8f7ce062d54f310df1f5e0d351 testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 4593dc006aab4245913b8b555d866deca489dbcac6ce7cc074dce1c8f2f28186 run #0: crashed: SYZFAIL: mmap of input file failed run #1: crashed: SYZFAIL: mmap of input file failed run #2: crashed: SYZFAIL: mmap of input file failed run #3: crashed: SYZFAIL: mmap of input file failed run #4: crashed: SYZFAIL: mmap of input file failed run #5: crashed: SYZFAIL: mmap of input file failed run #6: crashed: SYZFAIL: mmap of input file failed run #7: crashed: SYZFAIL: mmap of input file failed run #8: crashed: SYZFAIL: mmap of input file failed run #9: crashed: SYZFAIL: mmap of input file failed run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK testing current HEAD af48f51cb5934738a3ee97e951d7dededf029488 testing commit af48f51cb5934738a3ee97e951d7dededf029488 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 8aba1746ce9c9ac3edd537cf2f786d73bdf0ff41e78e252da4b9397cf582a7c0 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 28m6.529246871s (build: 15m50.896261326s, test: 11m47.164502155s) the crash still happens on HEAD commit msg: Linux 4.14.271 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout