[syslog-ng] syslog-ng OSE 3.0.4 coredumps when use "internal()" in s_local

[nova club]

Hi there,

I am a new user of syslog-ng. Thanks for your time and attention in advance.

The problem is syslog-ng coredumps when use "internal()" in "source", however it will work fine without "internal()". The conf file is like:

===>BEGIN
@version:3.0

options { dir_perm(0755); perm(0644);
          chain_hostnames(no);
          keep_hostname(yes);
          };

# Default local source.
source local {
        unix-dgram("/var/run/log");
        unix-dgram("/var/run/logpriv" perm(0600));
        internal();
        file("/dev/klog");
};

...

filter f_hecxd { program("hecxd"); };

...

log { source(local); filter(f_hecxd); destination(d_hecxd); };
==>END

The options used for building syslog-ng is: 
 
   CFLAGS='-Wl,-Bdynamic -liconv -Wl,-Bstatic' --enable-static-linking \
   --enable-debug \
   --enable-ssl --enable-ipv6=no --enable-tcp-wrapper=no \
   --with-pidfile-dir="/var/run/"

The platform is: FREEBSD 6.4-RELEASE-p6 i386

I got a very big core dump file (>500M), by backtracing that file, I can see the problem is "g_malloc0" for some reason failed to allocate memory, while syslog-ng did not check the return value and tried to use the "0x0" pointer in a "strlen()" call later. Here is a part of trace information:

#0  0x080a2d8d in strlen ()
No symbol table info available.
#1  0x0804e7fe in log_msg_new_internal (prio=43, msg=0x0, flags=6) at logmsg.c:1971
        buf = (gchar *) 0x0
        self = (LogMessage *) 0x8159000
#2  0x080492b1 in msg_send_internal_message (prio=43, msg=0x0) at messages.c:128
        context = (MsgContext *) 0x81893a0
        m = (LogMessage *) 0x7
#3  0x0804954c in msg_log_func (log_domain=0x81186ea "GLib", log_flags=6, msg=0x0, user_data=0x0) at messages.c:187
        pri = 43
#4  0x08084906 in IA__g_logv (log_domain=0x81186ea "GLib", log_level=G_LOG_LEVEL_ERROR, format=0x811cbac "%s: failed to allocate %u bytes",
    args1=0xbfbfe6cc "3�\021\bl") at gmessages.c:519
        msg = (gchar *) 0x0
        was_fatal = 0
        was_recursion = 0
        i = 2
#5  0x08084ae4 in IA__g_log (log_domain=0x81186ea "GLib", log_level=G_LOG_LEVEL_ERROR, format=0x811cbac "%s: failed to allocate %u bytes")
    at gmessages.c:569
No locals.
#6  0x08084239 in IA__g_malloc0 (n_bytes=108) at gmem.c:155
        mem = 0x0
#7  0x0804e5ef in log_msg_new (
    msg=0x8a82180 "<47> syslog-ng[3277]: Filter node evaluation result; filter_result='not-match', filter_type='level'\n", length=100,
    saddr=0x0, flags=6, bad_hostname=0x0, assume_timezone=-1, default_pri=47) at logmsg.c:1873
        self = (LogMessage *) 0x810ba1b
#8  0x0804e80a in log_msg_new_internal (prio=47,
    msg=0x817f500 "Filter node evaluation result; filter_result='not-match', filter_type='level'", flags=6) at logmsg.c:1971
        buf = (gchar *) 0x8a82180 "<47> syslog-ng[3277]: Filter node evaluation result; filter_result='not-match', filter_type='level'\n"
        self = (LogMessage *) 0x8159000
#9  0x080492b1 in msg_send_internal_message (prio=47,
    msg=0x817f500 "Filter node evaluation result; filter_result='not-match', filter_type='level'") at messages.c:128
        context = (MsgContext *) 0x81893a0
        m = (LogMessage *) 0x8182030

If you need the completed coredump file, just let me know and tell me where to put it :)

Any help is much appreciated.

Thanks a lot.
Shen


 		 	   		  
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