Okay. Got to the next bit pretty quickly.:
Breakpoint 4, auth_settings_read (service=0x0, pool=0x4104b020, output_r=0x7fdfffff6d0) at auth-settings.c:522 522 input.module = "auth"; (gdb) n 523 input.service = service; (gdb) n 524 if (master_service_settings_read(master_service, &input, (gdb) s
Program received signal SIGTRAP, Trace/breakpoint trap. Cannot remove breakpoints because program is no longer writable. It might be running in another process. Further execution is probably impossible. 0x000000004022a380 in ?? () (gdb)
So, why did it not step into master_service_settings_read ? Trying again:
523 input.service = service; (gdb) s 524 if (master_service_settings_read(master_service, &input, (gdb) list 519 520 i_zero(&input); 521 input.roots = set_roots; 522 input.module = "auth"; 523 input.service = service; 524 if (master_service_settings_read(master_service, &input, 525 output_r, &error) < 0) 526 i_fatal("Error reading configuration: %s", error); 527 528 pool_ref(pool); (gdb) p input $1 = {roots = 0x27fbd8, config_path = 0x0, preserve_environment = false, preserve_user = false, preserve_home = false, never_exec = false, use_sysexits = false, parse_full_config = false, module = 0x16ad70 "auth", service = 0x0, username = 0x0, local_ip = {family = 0, u = {ip6 = { __u6_addr = {__u6_addr8 = '\0' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = { s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__u6_addr = { __u6_addr8 = '\0' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, local_name = 0x0} (gdb) p &input $2 = (struct master_service_settings_input *) 0x7fdfffff5a8 (gdb) p output_r $3 = (struct master_service_settings_output *) 0x7fdfffff6d0 (gdb) p &error $4 = (const char **) 0x7fdfffff598 (gdb) p error $6 = 0x10dbd0 "@\005?\204\001" (gdb) p master_service $5 = (struct master_service *) 0x41030000 (gdb) s
Program received signal SIGTRAP, Trace/breakpoint trap. Cannot remove breakpoints because program is no longer writable. It might be running in another process. Further execution is probably impossible. 0x000000004022a380 in ?? () (gdb)
Any ideas here? I’m not sure where to look next…
- ChrisOn Feb 22, 2018, at 10:10, Chris Ross <cross+dovecot@distal.com> wrote:
Fancy, while not fun. :-) But thanks, that does work. Doing that, n’ing over calls to strcmp, it failed:
passdbs_init () at passdb.c:313 313 passdb_register_module(&passdb_ldap); (gdb) passdb_register_module (iface=0x280120) at passdb.c:33 33 old_iface = passdb_interface_find(iface->name); (gdb) passdb_interface_find (name=0x16fe60 "ldap") at passdb.c:20 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 21 struct passdb_module_interface *iface = *ifaces; (gdb) 23 if (strcmp(iface->name, name) == 0) (gdb) n 20 array_foreach(&passdb_interfaces, ifaces) { (gdb) 26 return NULL; (gdb) 27 } (gdb) passdb_register_module (iface=0x280120) at passdb.c:34 34 if (old_iface != NULL && old_iface->verify_plain == NULL) { (gdb) 37 } else if (old_iface != NULL) { (gdb) 41 array_append(&passdb_interfaces, &iface, 1); (gdb) 42 } (gdb) passdbs_init () at passdb.c:314 314 passdb_register_module(&passdb_sql); (gdb) 315 passdb_register_module(&passdb_sia); (gdb) 316 passdb_register_module(&passdb_static); (gdb) 317 passdb_register_module(&passdb_oauth2); (gdb) 318 } (gdb) main_preinit () at main.c:186 186 userdbs_init(); (gdb) 188 password_schemes_init(); (gdb) 190 services = read_global_settings(); (gdb)
Program received signal SIGTRAP, Trace/breakpoint trap. Cannot remove breakpoints because program is no longer writable. It might be running in another process. Further execution is probably impossible. 0x000000004022a380 in ?? () (gdb) Cannot find bounds of current function (gdb)
Next step I’ll stop before that and be more careful about n’ing things, but. Just passing on context while I have it.
Thanks. More later.
- ChrisOn Feb 22, 2018, at 02:25, Aki Tuomi <aki.tuomi@dovecot.fi> wrote:
Hi!
Unfortunately we do not have a Sparc64 with any OS at hand. Maybe you could
break main r s
until it breaks?
Aki