bisecting fixing commit since 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c
building syzkaller on 1bf9a662c66aa432ff2fe3bf2562578cef626c09
testing commit 27ce4f2a6817e38ca74c643d47a96359f6cc0c1c with gcc (GCC) 8.4.1 20210217
kernel signature: 0698b0d5b5f4e8f9724c334e62bb864393a1b27c0cc4c8eb04d6645fb94d90ac
run #0: crashed: WARNING in inc_nlink
run #1: crashed: WARNING in inc_nlink
run #2: crashed: WARNING in inc_nlink
run #3: crashed: WARNING in inc_nlink
run #4: crashed: WARNING in inc_nlink
run #5: crashed: WARNING in inc_nlink
run #6: crashed: WARNING in inc_nlink
run #7: crashed: WARNING in inc_nlink
run #8: crashed: WARNING in inc_nlink
run #9: crashed: WARNING in corrupted
run #10: crashed: WARNING in inc_nlink
run #11: crashed: WARNING in inc_nlink
run #12: crashed: WARNING in inc_nlink
run #13: crashed: WARNING in inc_nlink
run #14: crashed: WARNING in inc_nlink
run #15: crashed: WARNING in inc_nlink
run #16: crashed: WARNING in inc_nlink
run #17: boot failed: can't ssh into the instance
run #18: boot failed: can't ssh into the instance
run #19: boot failed: can't ssh into the instance
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: d9464810382455e1f1a0dd30a483308c200b47e5691bca98eca2215eab69ea6f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 29m12.36271628s (build: 14m53.582608755s, test: 13m55.094110614s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout