bisecting fixing commit since 2c8a3fceddf0dd87f278e7a5e01350f86f844b1c
building syzkaller on fc9fd31ee7998c8b747752791000ea4eef07b5c6
testing commit 2c8a3fceddf0dd87f278e7a5e01350f86f844b1c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a677ee0e6aed2db3a49e7be08b27182c83734114d613de72feb7248489a53ddb
run #0: crashed: INFO: task hung in usb_bulk_msg
run #1: crashed: INFO: task hung in usb_bulk_msg
run #2: crashed: INFO: task hung in usb_bulk_msg
run #3: crashed: INFO: task hung in usb_bulk_msg
run #4: crashed: INFO: task hung in usb_bulk_msg
run #5: crashed: INFO: task hung in usb_bulk_msg
run #6: crashed: INFO: task hung in usb_bulk_msg
run #7: crashed: INFO: task hung in usb_bulk_msg
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: crashed: INFO: task hung in corrupted
run #17: OK
run #18: OK
run #19: OK
reproducer seems to be flaky
testing current HEAD 162b95d01320370b80cb2d5724cea4ae538ac740
testing commit 162b95d01320370b80cb2d5724cea4ae538ac740
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9bd0fe79ea4469293a1fbe135c43a50feaa710165e83d1318e88e000877f5fdf
all runs: crashed: unregister_netdevice: waiting for DEV to become free
Reproducer flagged being flaky
revisions tested: 2, total time: 35m26.436798018s (build: 19m59.419144585s, test: 14m58.692145304s)
the crash still happens on HEAD
commit msg: Linux 4.14.244
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout