bisecting fixing commit since e0f8b8a65a473a8baa439cf865a694bbeb83fe90
building syzkaller on 5d7b90f1af2e3bf33992b75e7fcf0bab6bf49bd6
testing commit e0f8b8a65a473a8baa439cf865a694bbeb83fe90
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 763fddd240693241c35f399008fb517f21da21144f3d7108636fd4f953ed93f8
run #0: crashed: possible deadlock in pty_write
run #1: crashed: possible deadlock in console_unlock
run #2: crashed: possible deadlock in pty_write
run #3: crashed: possible deadlock in pty_write
run #4: crashed: possible deadlock in pty_write
run #5: crashed: possible deadlock in pty_write
run #6: crashed: possible deadlock in console_unlock
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in pty_write
run #9: crashed: possible deadlock in console_unlock
run #10: crashed: possible deadlock in console_unlock
run #11: crashed: possible deadlock in pty_write
run #12: crashed: possible deadlock in console_unlock
run #13: crashed: possible deadlock in console_unlock
run #14: crashed: possible deadlock in console_unlock
run #15: crashed: possible deadlock in pty_write
run #16: crashed: possible deadlock in pty_write
run #17: crashed: possible deadlock in console_unlock
run #18: crashed: possible deadlock in console_unlock
run #19: crashed: possible deadlock in pty_write
testing current HEAD 162b95d01320370b80cb2d5724cea4ae538ac740
testing commit 162b95d01320370b80cb2d5724cea4ae538ac740
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5bbc482b0096abeff2e32b2cd0c102f0119c9cb1dbac9b47d09571a68d8e617a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m57.522740548s (build: 21m30.333530056s, test: 6m0.169917698s)
the crash still happens on HEAD
commit msg: Linux 4.14.244
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