Re: [Tracker] tracker on solaris

[Jamie McCracken <jamiemcc blueyonder co uk>]

Jamie McCracken wrote:
> Jedy Wang wrote:
> > Hi Jamie,
> >
> > I built tracker-0.0.4 on Solaris. But when I run trackerd, it will crash
> > because of segmentation fault and produce a core file. If I run pstack
> > core, it outpus:
> >
> > -bash-3.00$ pstack core
> > core 'core' of 2452:    trackerd
> >  fe9b19b3 mutex_lock_impl (0, 0) + 23
> >  fe9b1baf mutex_lock (0) + 1d
> >  08176e59 do_cleanup (804753c, fe9b86cf, b, 0, 80475d0, 8047594) + 29
> >  081775ad signal_handler (b, 0, 80475d0) + 4d
> >  fe9b86cf __sighndlr (b, 0, 80475d0, 8177560) + f
> >  fe9ae420 call_user_handler (b, 0, 80475d0) + 247
> >  fe9ae5a8 sigacthandler (b, 0, 80475d0) + bc
> >  --- called from signal handler with signal 11 (SIGSEGV) ---
> >  081b9c66 handle_options (8047a4c, 8047a50, 8508c94, 819c4c0) + 76
> >  0819d2c9 __1cLget_options6Fippc_v_ (1, 85fd5b4) + 49
> >  0819adfa __1cVinit_common_variables6Fpkcippcp1_i_ (84766bc, c, 85fd5b0,
> > 8508508) + 16a
> >  0819e9ad init_embedded_server (c, 85ea838, 8508508) + 8d
> >  08191017 mysql_server_init (c, 85ea838, 8508508) + 127
> >  081793e3 main     (1, 8047c20, 8047c28) + 563
> >  08176a6a _start   (1, 8047cec, 0, 8047cf5, 8047cf9, 8047d09) + 7a
>
>
> It's crashing in the embedded mysql server. Do you have the embedded 
> server working correctly on Solaris with anything else?

It also seems to crashing when handling the passed options (handle_options)

The trackerd code for calling mysql_server_init is:

        static char **server_options;
	static char *server_groups[] = {"libmysqd_server", "libmysqd_client", 
NULL};

        /* initialise embedded mysql with options*/
        server_options = g_new (char *, 12);
        server_options[0] = g_strdup ("anything");
        server_options[1] = g_strconcat  ("--datadir=", tracker_data_dir, NULL);
        server_options[2] = g_strdup ("--myisam-recover=FORCE");
        server_options[3] = g_strdup ("--skip-grant-tables");
        server_options[4] = g_strdup ("--skip-innodb");
        server_options[5] = g_strdup ("--key_buffer_size=1M");
        server_options[6] = g_strdup ("--character-set-server=utf8");
        server_options[7] = g_strdup ("--ft_max_word_len=45");
        server_options[8] = g_strdup ("--ft_min_word_len=3");
	server_options[9] = g_strdup ("--ft_stopword_file=" DATADIR 
"/tracker/tracker-stop-words.txt");
        server_options[10] =  g_strconcat ("--language=", str,  NULL);
        server_options[11] = NULL;

        mysql_server_init ( 11, server_options, server_groups);


I dont know if mysql on solaris is sensitive to the server_options array 
being null terminated which it does not need to be as mysql_server_init 
needs to know the size of the array (11).

You might want to experiment with changing the above code in trackerd.c

try:
server_options = g_new (char *, 11);

and remove line : server_options[11] = NULL;

(if its not null terminated then you will also have to remove the 
g_strfreev (server_options) after it otherwise that bit will crash)


--
Mr Jamie McCracken
http://jamiemcc.livejournal.com/