If that worked, try adding exit(0); as the first statement in
src/auth/main.c's main() function to see if it returns 53 before or
after it reaches that far.
I put some information output to the code (i do not have a debbuger
running yet ;-) )
static void auth_process_input(void *context)
{
...
switch (i_stream_read(process->input)) {
...
case -1:
/* disconnected */
i_info("DIE 2");
auth_process_destroy(process);
return;
case -2:
/* buffer full */
...
i_info("DIE 3");
auth_process_destroy(process);
return;
}
The log is,
>>> dovecot: Nov 21 02:52:09 Info: DIE 2 <<<
dovecot: Nov 21 02:52:09 Error: Auth process died too early - shutting down
dovecot: Nov 21 02:52:09 Error: child 1300 (auth) returned error 53
