bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 340ea5301c27db4a3678f13acc430e04706a0cc6
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 740363b28b745c3a902784eb57f2897f5b3621f3fed6a237746c3db5d3c846c9
all runs: crashed: divide error in fbcon_switch
testing current HEAD cd529693461026636f76d0395a42cb2439bbd368
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8dc1a726b474bccc402658716d7fbf98e49bfcb6cf7a7577f0e877c6d34fe935
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m12.040174404s (build: 20m12.405799623s, test: 6m29.106900079s)
the crash still happens on HEAD
commit msg: Linux 4.14.253
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