bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 93f844de48fff3f13271ec9e3fc2f5abf7692424
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 with gcc (GCC) 8.4.1 20210217
kernel signature: 208f80f65fd9c133d5ae6e807a9a47cd2f0fe55eb3ebbda077f69dec2f25cc65
run #0: crashed: SYZFAIL: mmap of output file failed
run #1: crashed: SYZFAIL: mmap of output file failed
run #2: crashed: SYZFAIL: mmap of output file failed
run #3: crashed: SYZFAIL: mmap of output file failed
run #4: crashed: SYZFAIL: mmap of output file failed
run #5: crashed: SYZFAIL: mmap of output file failed
run #6: crashed: SYZFAIL: mmap of output file failed
run #7: crashed: SYZFAIL: mmap of output file failed
run #8: crashed: SYZFAIL: mmap of output file failed
run #9: crashed: SYZFAIL: mmap of output file failed
run #10: crashed: SYZFAIL: mmap of output file failed
run #11: crashed: SYZFAIL: mmap of output file failed
run #12: crashed: SYZFAIL: mmap of output file failed
run #13: crashed: SYZFAIL: mmap of output file failed
run #14: crashed: SYZFAIL: mmap of output file failed
run #15: crashed: SYZFAIL: mmap of output file failed
run #16: crashed: SYZFAIL: mmap of output file failed
run #17: crashed: SYZFAIL: mmap of output file failed
run #18: crashed: WARNING: ODEBUG bug in netdev_freemem
run #19: crashed: SYZFAIL: mmap of output file failed
testing current HEAD 3d3abdc8ebd3c3082e4398fc73ceb4c852b66e85
testing commit 3d3abdc8ebd3c3082e4398fc73ceb4c852b66e85 with gcc (GCC) 8.4.1 20210217
kernel signature: 21b39cf19136011de5bf1c8dcdfe9cc31f85e5c5905031600ee956940e024842
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m24.24436794s (build: 14m48.082631437s, test: 8m16.553591189s)
the crash still happens on HEAD
commit msg: Linux 4.14.236
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: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout