bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 340ea5301c27db4a3678f13acc430e04706a0cc6
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f400c0437b7c96944f8a4aac19effe9629dbd61dd9b985086dd04e9c3219e0df
all runs: crashed: divide error in fbcon_switch
testing current HEAD 66722c42ec916e92cadda46316f8f6e3fdcaedc6
testing commit 66722c42ec916e92cadda46316f8f6e3fdcaedc6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fc102b665eb738848affaf561638beb43a388b109de506aa66a9e959128651b3
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m2.272434652s (build: 17m57.546173674s, test: 6m32.307773708s)
the crash still happens on HEAD
commit msg: Linux 4.14.256
crash: unregister_netdevice: waiting for DEV to become free
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