this may happen at kamailio shutdown :

Program terminated with signal 11, Segmentation fault. #0 0x00007fb66a73e591 in atomic_cmpxchg_int (var=0x0, old=0, new_v=1) at ../../mem/../atomic/atomic_x86.h:233 233 ATOMIC_FUNC_CMPXCHG(cmpxchg, "cmpxchgl %2, %1", int , int) (gdb) bt #0 0x00007fb66a73e591 in atomic_cmpxchg_int (var=0x0, old=0, new_v=1) at ../../mem/../atomic/atomic_x86.h:233 #1 0x00007fb66a73e5e0 in futex_get (lock=0x0) at ../../mem/../futexlock.h:99 #2 0x00007fb66a743183 in diameter_peer_destroy () at diameter_peer.c:416 #3 0x00007fb66a745272 in cdp_exit () at mod.c:244 #4 0x000000000059bf98 in destroy_modules () at sr_module.c:817 #5 0x00000000004a113a in cleanup (show_status=0) at main.c:513 #6 0x00000000004a272e in shutdown_children (sig=15, show_status=0) at main.c:655 #7 0x00000000004b255d in main (argc=12, argv=0x7ffcdbd4bac8) at main.c:2568 (gdb) bt full #0 0x00007fb66a73e591 in atomic_cmpxchg_int (var=0x0, old=0, new_v=1) at ../../mem/../atomic/atomic_x86.h:233 ret = 48 #1 0x00007fb66a73e5e0 in futex_get (lock=0x0) at ../../mem/../futexlock.h:99 v = 0 i = 1024 #2 0x00007fb66a743183 in diameter_peer_destroy () at diameter_peer.c:416 pid = 1786325736 status = 32694 h = 0x7fb660289560 __FUNCTION__ = "diameter_peer_destroy" #3 0x00007fb66a745272 in cdp_exit () at mod.c:244 __llevel = 2 __FUNCTION__ = "cdp_exit" #4 0x000000000059bf98 in destroy_modules () at sr_module.c:817 t = 0x7fb66f3a6010 foo = 0x7fb66f3a5d40 __FUNCTION__ = "destroy_modules" #5 0x00000000004a113a in cleanup (show_status=0) at main.c:513 memlog = 32764 __FUNCTION__ = "cleanup" #6 0x00000000004a272e in shutdown_children (sig=15, show_status=0) at main.c:655 __FUNCTION__ = "shutdown_children" #7 0x00000000004b255d in main (argc=12, argv=0x7ffcdbd4bac8) at main.c:2568 cfg_stream = 0x1706010 c = -1 r = 0 tmp = 0x7ffcdbd4bf2f "" tmp_len = 0 port = 0 proto = 0 options = 0x71c738 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:" ret = -1 seed = 1767645291 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x76 p = 0x7ffcdbd4b9ce "" st = {st_dev = 0, st_ino = 0, st_nlink = 0, st_mode = 0, st_uid = 0, st_gid = 0, __pad0 = 0, st_rdev = 0, st_size = 0, st_blksize = 0, st_blocks = 0, st_atim = { tv_sec = 0, tv_nsec = 0}, st_mtim = {tv_sec = 0, tv_nsec = 0}, st_ctim = {tv_sec = 0, tv_nsec = 0}, __unused = {0, 0, 0}} ---Type <return> to continue, or q <return> to quit--- __FUNCTION__ = "main" (gdb)

Patch provides a quick fix so that it will not dump core.

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/710

-- Commit Summary --

* cdp: fix occasional segfault on process exit

-- File Changes --

M modules/cdp/diameter_peer.c (3)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/710.patch https://github.com/kamailio/kamailio/pull/710.diff

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