[SR-Users] kamailio presence server becomes unresponsive

[Juha Heinanen]

once in a while kamailio 4.0 presence server becomes unresponsive, i.e.,
does not process any requests.  below is bt full of a process that at
that time takes most of the cpu time.  rls_notifier_processes is not
set, i.e., it defaults to 1.

does the bt give any clue why kamailio is unresponsive?

-- juha

(gdb) bt full
#0  0xb7703424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb765b32d in select () from /lib/i686/cmov/libc.so.6
No symbol table info available.
#2  0x0812ad00 in sleep_us (child_id=-1, desc=0xbfab3310 "RLS NOTIFIER 0", make_sock=1, f=0xb6b22dc0 <timer_send_notify>, param=0xb4db0720, uinterval=100000) at ut.h:520
        tval = {tv_sec = 0, tv_usec = 64460}
#3  fork_basic_utimer (child_id=-1, desc=0xbfab3310 "RLS NOTIFIER 0", make_sock=1, f=0xb6b22dc0 <timer_send_notify>, param=0xb4db0720, uinterval=100000) at timer_proc.c:127
        pid = <value optimized out>
        ts = 4294966782
#4  0xb6b23b90 in child_init (rank=0) at rls.c:704
        tmp = "RLS NOTIFIER 0\000\277"
        i = 0
#5  0x080f5197 in init_mod_child (m=0xb71a3330, rank=0) at sr_module.c:893
No locals.
#6  0x080f5110 in init_mod_child (m=0xb71a3500, rank=0) at sr_module.c:890
No locals.
#7  0x080f5110 in init_mod_child (m=0xb71a37b0, rank=0) at sr_module.c:890
No locals.
#8  0x080f5110 in init_mod_child (m=0xb71a3c20, rank=0) at sr_module.c:890
No locals.
#9  0x080f5110 in init_mod_child (m=0xb71a4258, rank=0) at sr_module.c:890
No locals.
#10 0x080f5110 in init_mod_child (m=0xb71a4420, rank=0) at sr_module.c:890
No locals.
#11 0x08094dcd in main_loop () at main.c:1710
        i = 0
        pid = -514
        si = 0x0
        si_desc = "\001\000\000\000\220\065\253\277\000\000\000\000\220D\032\267\006\000\000\000\020\317\060\000\000\000\000\000\220D\032\267\001\000\000\000\330\067\005\b\320i\036\b\000\000\000\000\030\036Z\267\030\000\000\000\v\b\000\000\b\017۴\350\065\253\277\250\205\031\267\004\000\000\000\002\000\000\000\300\201\252\264\001\000\000\000\000\000\000\000\002\000\000\000|\353&\b\b\000\000\000\330\065\253\277\002\000\000\000h\353&\b\b\000\000\000\350\065\253\277\071\026\f\b"
        nrprocs = 134560983
#12 0x08096f66 in main (argc=16, argv=0xbfab3724) at main.c:2546
        cfg_stream = 0x8
        c = <value optimized out>
        r = -514
        tmp = 0xbfab3f7d ""
        tmp_len = 135830000
        port = <value optimized out>
        proto = <value optimized out>
        ret = <value optimized out>
        seed = 779380118
        rfd = <value optimized out>
        debug_save = 0
        debug_flag = <value optimized out>
        dont_fork_cnt = 8
        n_lst = <value optimized out>
        p = <value optimized out>