ci2 starts bisection 2023-03-03 18:58:24.118851611 +0000 UTC m=+168519.057540997
bisecting fixing commit since c4215ee4771bb935727df2db097fd28f8d644b5c
building syzkaller on 9da18ae8fa827d046ef8da48cc23c97418553c23
ensuring issue is reproducible on original commit c4215ee4771bb935727df2db097fd28f8d644b5c

testing commit c4215ee4771bb935727df2db097fd28f8d644b5c gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: e7dd7592e248a7573cc41cefaeb6d3312ddf5f82991ff6bdc9ec837cbb87d608
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 7878a41b6cc1ada4bb804eee96beb2c54322806c
testing commit 7878a41b6cc1ada4bb804eee96beb2c54322806c gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: bcdc1a103153fa5cb23569ec19d4e66f78e5d1cd50377676d9216d673bdcddb1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m20.730903967s (build: 13m42.809218089s, test: 6m41.368299761s)
the crash still happens on HEAD
commit msg: Linux 4.14.307
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout