bisecting fixing commit since 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
building syzkaller on 3037caa999f22cdb40f1fa5c6b1b13e5d6af9781
testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5a98e452295eaa12d88c815aa8121f145902768c9949c55fa1115ed12e832be4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 93624b352fc8dfb0f796a6c5eb50ffb2c1a2a4c4a3ef98c1c3daa8fd83c2d07a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m48.991348958s (build: 18m31.351815045s, test: 6m29.390610975s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
syz-executor.0 (7978) used greatest stack depth: 23600 bytes left
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
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