bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on a9767fb2a6393444e871a02e79a14ccfa2aef52b
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 with gcc (GCC) 8.4.1 20210217
kernel signature: 8effd333e8cf25a67683de1c5a0aa55bbc56387d1997c470a681d6a2c7b2acc9
run #0: crashed: kernel BUG in remove_inode_page
run #1: crashed: kernel BUG in remove_inode_page
run #2: crashed: kernel BUG in remove_inode_page
run #3: crashed: kernel BUG in remove_inode_page
run #4: crashed: kernel BUG in remove_inode_page
run #5: crashed: kernel BUG in remove_inode_page
run #6: crashed: kernel BUG in remove_inode_page
run #7: crashed: kernel BUG in remove_inode_page
run #8: crashed: kernel BUG in remove_inode_page
run #9: crashed: kernel BUG in remove_inode_page
run #10: crashed: kernel BUG in remove_inode_page
run #11: crashed: kernel BUG in remove_inode_page
run #12: crashed: kernel BUG in remove_inode_page
run #13: crashed: kernel BUG in remove_inode_page
run #14: crashed: kernel BUG in remove_inode_page
run #15: crashed: kernel BUG in remove_inode_page
run #16: crashed: kernel BUG in corrupted
run #17: crashed: kernel BUG in remove_inode_page
run #18: crashed: kernel BUG in remove_inode_page
run #19: crashed: kernel BUG in remove_inode_page
testing current HEAD a6b2dae3ee3a3f9f4db3fab5b4b9e493fecf4acd
testing commit a6b2dae3ee3a3f9f4db3fab5b4b9e493fecf4acd with gcc (GCC) 8.4.1 20210217
kernel signature: 5f973e3f991e53eba20440147968bba995330703dbd4e0bd3e160f2324c72063
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m59.405624708s (build: 19m24.865761379s, test: 6m2.415760386s)
the crash still happens on HEAD
commit msg: Linux 4.14.235
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: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout