bisecting fixing commit since 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
building syzkaller on 838e7e2cd9228583ca33c49a39aea4d863d3e36d
testing commit 756db2ba8bde4ead58ceb54e9cbc71f526f9a98f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2b1cb78d129d2e4a959e1ad48d9f8ef7bc88d7a15f3f885d31fd4e54b309e227
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
testing commit 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 50d9c02bbb7a438591d65cc2b2b54b786cac80d8077621dabd767584065d807b
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m2.843552232s (build: 16m6.222787488s, test: 6m33.284957249s)
the crash still happens on HEAD
commit msg: Linux 4.14.254
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: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout