[SR-Users] kamailio presence server becomes unresponsive

[Klaus Darilion]

FYI: In master there is a nice way to get all the BTs:

utils/kamctl: new command 'trap'
  - useful to get a full bt dump of all kamailio processes
  - handy in dead-lock investigatigations

regards
Klaus

On 20.12.2013 19:06, Daniel-Constantin Mierla wrote:
> Hello,
>
> the bt is from custom timer process, which doesn't handle sip requests
> from the network.
>
> Do a 'kamctl ps' and the select one of the sip workers to grab the back
> with gdb.
>
> Cheers,
> Daniel
>
> On 20/12/13 15:22, Juha Heinanen wrote:
>> 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>
>>
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