bisecting fixing commit since cd529693461026636f76d0395a42cb2439bbd368
building syzkaller on 098b5d530648147c744a7c2eb8b78c1307f9d3ce
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ac43dc755703cf216a45aa9e770f52f39c9dcffa32d7e681db556d58ddc5c3d2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b794c8dbf59f17421ef00979b5263a297e947643498919538e597a5ba8b571b5
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m23.806364972s (build: 18m15.474998386s, test: 6m19.819269375s)
the crash still happens on HEAD
commit msg: Linux 4.14.281
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout