bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on fa79ed2ae1c546ca48519cfcd80d43b51b502750
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7186d5a7fd1e97cbb3c2c46bc85a9b540ab1d8dcfd81d51a867d2d19e573057c
all runs: crashed: BUG: unable to handle kernel paging request in cfb_imageblit
testing current HEAD a6ca7c65b1376f7bb14979cb745d3da73c8de948
testing commit a6ca7c65b1376f7bb14979cb745d3da73c8de948
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d5da84b8e453c3778e1b40db5d58c17723d418a3f304e1466651b7fc2427f19a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m1.265605847s (build: 22m37.927946824s, test: 6m56.29166854s)
the crash still happens on HEAD
commit msg: Linux 4.14.260
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout