bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67 building syzkaller on a9767fb2a6393444e871a02e79a14ccfa2aef52b testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 041848112438b81d6a43bc9d64e256affa23219ee28ad8cf7f7b2e2b5dc3672f run #0: crashed: kernel BUG in remove_inode_page run #1: crashed: kernel BUG in corrupted 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 corrupted run #15: crashed: kernel BUG in remove_inode_page run #16: crashed: kernel BUG in remove_inode_page 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 b86ee2b7ae42b6b37a918b66236608e2cc325f59 testing commit b86ee2b7ae42b6b37a918b66236608e2cc325f59 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: cab0c0de1e0296d44dfada41e2ba206cccf91f4d388bea5258f9e125b411acdd all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 31m32.337898143s (build: 24m36.069887018s, test: 6m17.307849998s) the crash still happens on HEAD commit msg: Linux 4.14.264 crash: unregister_netdevice: waiting for DEV to become free can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 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: hci1 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 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: hci3 command 0x041b tx timeout Bluetooth: hci2 command 0x041b 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: hci1 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout