bisecting fixing commit since e0f8b8a65a473a8baa439cf865a694bbeb83fe90
building syzkaller on 5d7b90f1af2e3bf33992b75e7fcf0bab6bf49bd6
testing commit e0f8b8a65a473a8baa439cf865a694bbeb83fe90
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3ee13e1017dc7136bf07f22a8e07debdcfcd7a27aca54331955f9c86f575bc18
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 console_unlock
run #5: crashed: possible deadlock in console_unlock
run #6: crashed: possible deadlock in console_unlock
run #7: crashed: possible deadlock in console_unlock
run #8: crashed: possible deadlock in console_unlock
run #9: crashed: possible deadlock in console_unlock
run #10: crashed: possible deadlock in console_unlock
run #11: crashed: possible deadlock in console_unlock
run #12: crashed: possible deadlock in console_unlock
run #13: crashed: possible deadlock in pty_write
run #14: crashed: possible deadlock in pty_write
run #15: crashed: possible deadlock in console_unlock
run #16: crashed: possible deadlock in console_unlock
run #17: crashed: possible deadlock in console_unlock
run #18: crashed: possible deadlock in console_unlock
run #19: crashed: possible deadlock in console_unlock
testing current HEAD 5f9f3b0057d5c5782985784ba0159b05b4083055
testing commit 5f9f3b0057d5c5782985784ba0159b05b4083055
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a92cf41cfd309f2995c95bfbec9dc7e4afcb260e639077962c47cb483dd57c85
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m54.85700669s (build: 17m19.828093348s, test: 6m41.425091648s)
the crash still happens on HEAD
commit msg: Linux 4.14.255
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