bisecting fixing commit since 964f3712e6a7447d9d3203f2be3f6c50e78ea179
building syzkaller on fd5118098a3df4301eba91aeca37119ccb209403
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d67309681a57d49d91aee9e702ebcab6ba045d2b1b59d90c8044c0df7bb17fd5
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: 34c771fd5ae63f2b4e47a271a42eeb7bb8cc5068c69ff234ae3dd09eb1782e9a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 20m57.446680961s (build: 14m22.849332395s, test: 6m3.698426234s)
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