bisecting fixing commit since f79dc86058bc0c8317eea2a0f968382c6ffb0cfb
building syzkaller on 65a7a8540d29e72622fca06522587f7e66539fd3
testing commit f79dc86058bc0c8317eea2a0f968382c6ffb0cfb
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 39ac2dd1bea55bd21e9d3ba116f97665f46ad73cd5aeb86ce49e2865a14e3432
run #0: crashed: INFO: task hung in __get_super
run #1: crashed: INFO: task hung in __get_super
run #2: crashed: INFO: task hung in __blkdev_get
run #3: crashed: INFO: task hung in __get_super
run #4: crashed: INFO: task hung in __blkdev_get
run #5: crashed: INFO: task hung in __blkdev_get
run #6: crashed: INFO: task hung in lo_ioctl
run #7: crashed: INFO: task hung in lo_ioctl
run #8: crashed: INFO: task hung in __get_super
run #9: crashed: INFO: task hung in lo_ioctl
run #10: crashed: INFO: task hung in __blkdev_get
run #11: crashed: INFO: task hung in __blkdev_get
run #12: crashed: INFO: task hung in __blkdev_get
run #13: crashed: INFO: task hung in lo_ioctl
run #14: crashed: INFO: task hung in __blkdev_get
run #15: crashed: INFO: task hung in lo_ioctl
run #16: crashed: INFO: task hung in __get_super
run #17: crashed: INFO: task hung in __blkdev_get
run #18: crashed: INFO: task hung in __blkdev_get
run #19: crashed: INFO: task hung in __blkdev_get
testing current HEAD 2760370b164918bd9311e6bf445cf4c118d3463c
testing commit 2760370b164918bd9311e6bf445cf4c118d3463c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ab5c1343077668187b334b745fae953485c017bf34d203d8a6e8d82f140e1c17
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m38.159481272s (build: 13m53.166346211s, test: 10m11.976605893s)
the crash still happens on HEAD
commit msg: Linux 4.14.252
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: hci4 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout