ci2 starts bisection 2023-02-28 07:08:48.675111788 +0000 UTC m=+35615.747072252
bisecting fixing commit since 9d5c0b3a8e1a8b6c4969f630803103978e8d17b6
building syzkaller on b31320fc8f3519e40494f64ebf77c13d16284bfd
ensuring issue is reproducible on original commit 9d5c0b3a8e1a8b6c4969f630803103978e8d17b6

testing commit 9d5c0b3a8e1a8b6c4969f630803103978e8d17b6 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 071e519d0b8330dc6b9eb623a0bc3054ba1158978d28dac7ccfb9f51789c855b
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: 15cf3ed663174f3b6ed6b139a31f3528f7ebcdefce115fc10fdd813d192eddaa
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m41.421920619s (build: 17m8.770829555s, test: 6m40.106511092s)
the crash still happens on HEAD
commit msg: Linux 4.14.307
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: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout