Timo,
The gdb analysis is attached. It looks like memory got seriously
stomped in this core dump. There was no assert or other useful
information in the syslog. My setup: Solaris 9, imap and imaps,
mbox format, INBOXes NFS mounted, index files on local ufs
filesystem, beta8 configured like so:
VERSION=1.0.beta8
CC=gcc CFLAGS="-g -O" CPPFLAGS=-I/opt/openssl/include
LDFLAGS=-L/opt/openssl/lib \
./configure --prefix=/opt/dovecot.$VERSION \
--with-ssl=openssl \
--with-ssldir=/opt/openssl/ssl \
--with-sql-drivers=no \
--disable-ipv6 \
> configure.out
Jeff Earickson
Colby College
-------------- next part --------------
%gdb imap core.safaasse
GNU gdb 6.3
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details.
This GDB was configured as "sparc-sun-solaris2.9"...
Core was generated by `imap'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libdl.so.1...done.
Loaded symbols for /usr/lib/libdl.so.1
Reading symbols from /usr/lib/libsocket.so.1...done.
Loaded symbols for /usr/lib/libsocket.so.1
Reading symbols from /usr/lib/libnsl.so.1...done.
Loaded symbols for /usr/lib/libnsl.so.1
Reading symbols from /usr/lib/librt.so.1...done.
Loaded symbols for /usr/lib/librt.so.1
Reading symbols from /usr/lib/libsendfile.so.1...done.
Loaded symbols for /usr/lib/libsendfile.so.1
Reading symbols from /usr/lib/libc.so.1...done.
Loaded symbols for /usr/lib/libc.so.1
Reading symbols from /usr/lib/libmp.so.2...done.
Loaded symbols for /usr/lib/libmp.so.2
Reading symbols from /usr/lib/libaio.so.1...done.
Loaded symbols for /usr/lib/libaio.so.1
Reading symbols from /usr/lib/libmd5.so.1...done.
Loaded symbols for /usr/lib/libmd5.so.1
Reading symbols from /usr/platform/SUNW,Ultra-1/lib/libc_psr.so.1...done.
Loaded symbols for /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
#0 0xff1b455c in strlen () from /usr/lib/libc.so.1
(gdb) backtrace
#0 0xff1b455c in strlen () from /usr/lib/libc.so.1
#1 0xff207058 in _doprnt () from /usr/lib/libc.so.1
#2 0xff2090c8 in vsnprintf () from /usr/lib/libc.so.1
#3 0x00080f3c in str_vprintfa (str=0xa6be2, fmt=Cannot access memory at address
0x48
) at str.c:118
#4 0x00073f0c in internal_handler (log_type=-64 '?',
format=0x2 <Address 0x2 out of bounds>, args=0x18) at failures.c:362
#5 0x00073f60 in i_internal_info_handler (
fmt=0x49 <Address 0x49 out of bounds>, args=0x84288) at failures.c:400
#6 0x00074424 in i_info (format=0x84288 "Disconnected: %s") at
failures.c:218
#7 0x000218c8 in client_disconnect (client=0x84288, reason=0x0)
at client.c:119
#8 0x00021924 in client_disconnect_with_error (client=0xb1b40, msg=0x0)
at client.c:130
#9 0x0001e818 in cmd_fetch_finish (ctx=Variable "ctx" is not
available.
) at cmd-fetch.c:98
#10 0x0001eb0c in cmd_fetch (cmd=0x0) at cmd-fetch.c:176
#11 0x00022150 in _client_input (context=Variable "context" is not
available.
) at client.c:375
#12 0x00079718 in io_loop_handler_run (ioloop=0xb1b40) at ioloop-poll.c:203
#13 0x00078f94 in io_loop_run (ioloop=0xaf440) at ioloop.c:274
#14 0x0002a560 in main (argc=717888, argv=0x1, envp=Variable "envp" is
not available.
) at main.c:271
(gdb) up 4
#4 0x00073f0c in internal_handler (log_type=-64 '?',
format=0x2 <Address 0x2 out of bounds>, args=0x18) at failures.c:362
362 str_vprintfa(str, format, args);
(gdb) print args
$1 = 0x18
(gdb) print *args
Attempt to dereference a generic pointer.
(gdb) print &args
Can't take address of "args" which isn't an lvalue.
(gdb) up
#5 0x00073f60 in i_internal_info_handler (
fmt=0x49 <Address 0x49 out of bounds>, args=0x84288) at failures.c:400
400 (void)internal_handler('I', fmt, args);
(gdb) print *args
Attempt to dereference a generic pointer.
(gdb) print args
$2 = 0x84288
(gdb) print &args
Can't take address of "args" which isn't an lvalue.
(gdb) print **args
Attempt to dereference a generic pointer.
(gdb) up
#6 0x00074424 in i_info (format=0x84288 "Disconnected: %s") at
failures.c:218
218 info_handler(format, args);
(gdb) print *format
$3 = 68 'D'
(gdb) up
#7 0x000218c8 in client_disconnect (client=0x84288, reason=0x0)
at client.c:119
119 i_info("Disconnected: %s", reason);
(gdb) print *client
$4 = {fd_in = 1147761507, fd_out = 1869508197, io = 0x63746564,
input = 0x3a202573, output = 0x0, namespaces = 0x0, mailbox = 0x2a204259,
keywords = {pool = 0x45200000, keywords = {buffer = 0x42414420,
element_size = 1165128303}}, select_counter = 1914726766,
messages_count = 541674817, recent_count = 1344304225,
last_input = 1731862528, last_output = 1111573536, bad_counter = 1165128303,
parser = 0x7220696e, cmd = {client = 0x20494d41, pool = 0x5020636f,
tag = 0x6d6d616e <Address 0x6d6d616e out of bounds>,
name = 0x643a2000 <Address 0x643a2000 out of bounds>, func = 0,
context = 0x42414420, uid = 0, param_error = 1}, disconnected = 0,
destroyed = 1, command_pending = 1, input_pending = 1, output_pending = 0,
rawlog = 0, input_skip_line = 1}
(gdb) up
#8 0x00021924 in client_disconnect_with_error (client=0xb1b40, msg=0x0)
at client.c:130
130 client_disconnect(client, msg);
(gdb) print *client
$5 = {fd_in = 0, fd_out = 1, io = 0xaf4d8, input = 0xb1bd8, output = 0xb1d08,
namespaces = 0xb1570, mailbox = 0xb8008, keywords = {pool = 0xb5dc0,
keywords = {buffer = 0x0, element_size = 0}}, select_counter = 5,
messages_count = 2, recent_count = 0, last_input = 1148017947,
last_output = 0, bad_counter = 0, parser = 0xb1d58, cmd = {client = 0xb1b40,
pool = 0xb3db8, tag = 0xb3de8 "0000000b", name = 0xb3df8
"FETCH",
func = 0x1e864 <cmd_fetch>, context = 0x0, uid = 0, param_error = 0},
disconnected = 0, destroyed = 0, command_pending = 0, input_pending = 0,
output_pending = 0, rawlog = 0, input_skip_line = 1}
(gdb) up
#9 0x0001e818 in cmd_fetch_finish (ctx=Variable "ctx" is not
available.
) at cmd-fetch.c:98
98 client_disconnect_with_error(cmd->client,
error);
(gdb) print ctx
Variable "ctx" is not available.
(gdb) print error
Variable "error" is not available.
(gdb) print cmd
$6 = (struct client_command_context *) 0x0
(gdb) quit
On Fri, 2006-05-19 at 09:12 -0400, Jeff A. Earickson wrote:> The gdb analysis is attached. It looks like memory got seriously > stomped in this core dump.Wonder why.. Because the error seems to be simply that the error message was NULL which caused %s to dereference NULL pointer. The error shouldn't ever be NULL though, but I'll fix this anyway so that it won't crash there. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dovecot/attachments/20060530/171c8c10/attachment.bin>
Tere. dovecot -a base_dir: /var/run/dovecot/ log_path: info_log_path: log_timestamp: %Y-%m-%d %H:%M:%S syslog_facility: mail protocols: imap imaps pop3 pop3s listen: * ssl_listen: ssl_disable: no ssl_ca_file: ssl_cert_file: /etc/ssl/certs/dovecot.pem ssl_key_file: /etc/ssl/private/dovecot.pem ssl_key_password: ssl_parameters_regenerate: 168 ssl_cipher_list: ssl_verify_client_cert: no disable_plaintext_auth: no verbose_ssl: yes shutdown_clients: yes nfs_check: yes login_dir: /var/run/dovecot//login login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login login_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3-login login_user: dovecot login_greeting: Dovecot ready. login_log_format_elements: %u %r %m %c login_log_format: %$: %s login_process_per_connection: yes login_chroot: yes login_greeting_capability: no login_process_size: 128 login_processes_count: 30 login_max_processes_count: 1024 login_max_logging_users: 2048 valid_chroot_dirs: mail_chroot: max_mail_processes: 5120 verbose_proctitle: yes first_valid_uid: 500 last_valid_uid: 0 first_valid_gid: 1 last_valid_gid: 0 mail_extra_groups: mail default_mail_env: maildir:%h/Maildir:INDEX=/var/spool/dovecot/index/%u:CONTROL=/var/spool/dovecot/control/%u mail_cache_fields: flags mail_never_cache_fields: imap.envelope Segmentation fault Is this normal? -- Sysadmin
Mart Pirita
2007-Feb-05 11:19 UTC
[Dovecot] Again: dovecot -a ends with Segmentation fault
Tere. 64bit systems give mail_log_prefix: %Us(%u): Segmentation fault Is this normal? -- Mart