I now have two new servers with kamailio 5.2.4 and centos 8 which have exactly the same symptoms, crash every 9 hours and 41 minutes. Traceback:

0 0x000000000046b7d6 in get_hash1_raw (s=0x5dcbf2d2 <error: Cannot access memory at address 0x5dcbf2d2>, len=9) at core/hashes.h:109
#1 0x000000000046bab6 in str_hash_get (ht=0xa61680 <cnts_hash_table>, key=0x5dcbf2d2 <error: Cannot access memory at address 0x5dcbf2d2>, len=9) at core/str_hash.h:94
#2 0x000000000046c9d0 in cnt_hash_lookup (group=0x7fff3acb37a0, name=0x7f75ceb93b80) at core/counters.c:420
#3 0x000000000046d221 in counter_lookup_str (handle=0x7fff3acb37be, group=0x7fff3acb37a0, name=0x7f75ceb93b80) at core/counters.c:541
#4 0x00007f75ce71734b in get_stat (name=0x7f75ceb93b80) at ../../core/counters.h:197
#5 0x00007f75ce71805b in statsc_svalue (name=0x7f75ceb93b80, res=0x7f75ceb93f4b) at statsc_mod.c:149
#6 0x00007f75ce719aff in statsc_timer (ticks=94505445, param=0x0) at statsc_mod.c:274
#7 0x00000000005d6087 in sr_wtimer_exec (ticks=94505445, param=0x0) at core/timer_proc.c:390
#8 0x00000000005d52a8 in fork_sync_timer (child_id=-1, desc=0x7bd391 "secondary timer", make_sock=1, f=0x5d5d80 <sr_wtimer_exec>, param=0x0, interval=1000) at core/timer_proc.c:224
#9 0x00000000005d63bc in sr_wtimer_start () at core/timer_proc.c:416
#10 0x0000000000425873 in main_loop () at main.c:1729
#11 0x000000000042c4d1 in main (argc=7, argv=0x7fff3acb3dd8) at main.c:2696

From: Henning Westerholt <notifications@github.com>
Sent: 08 November 2019 16:29
To: kamailio/kamailio <kamailio@noreply.github.com>
Cc: Ekke Einberg <ekke.einberg@ipcallcenters.eu>; Author <author@noreply.github.com>
Subject: Re: [kamailio/kamailio] statsc module - server crashes every 10 hours (#2101)

This is interesting. So you are saying that it happens only on one server, even if the others also use stats.

Do you see e.g. any memory errors in the dmesg or system logging? Do you have a chance to e.g. to a memory test on this particular server?

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