[sr-dev] [kamailio/kamailio] kamailio crash alert (Issue #3290)

### Description

crashes the server, raised by qm_debug_check_frag()[?]

### Troubleshooting

#### Reproduction

happens randomly

#### Debugging Data

``` [New LWP 13364] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/var/lib/ums/sbin/kamailio -m 2048 -M 12 -P /var/run/kamailio/kamailio.pid -f /'. Program terminated with signal SIGSEGV, Segmentation fault. #0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 65 ../sysdeps/x86_64/multiarch/strlen-avx2.S: No such file or directory. (gdb) bt full #0 __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:65 No locals. #1 0x00007fbaf0bf99ef in _IO_vfprintf_internal (s=s@entry=0x1874040, format=format@entry=0xa6217c "%s: %.*s%s%s%sBUG: qm: fragm. %p (address %p) beginning overwritten (%lx)! Memory allocator was called from %s:%u. Fragment marked by %s:%lu. Exec from %s:%u.\n", ap=ap@entry=0x7ffc043b3b60) at vfprintf.c:1638 len = <optimized out> string_malloced = 0 step0_jumps = {0, 3637, 3213, 3109, 4653, 2997, 4437, 4037, 3717, 4869, 4773, 3397, 4557, 4549, 3589, 4981, 3701, 4757, 3317, 2021, 1429, 1221, 2261, 1701, 1653, 797, 1773, 437, 437, 4333} space = 0 is_short = 0 use_outdigits = 0 outc = <optimized out> step1_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 4869, 4773, 3397, 4557, 4549, 3589, 4981, 3701, 4757, 3317, 2021, 1429, 1221, 2261, 1701, 1653, 797, 1773, 437, 437, 0} group = 0 prec = <optimized out> step2_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4773, 3397, 4557, 4549, 3589, 4981, 3701, 4757, 3317, 2021, 1429, 1221, 2261, 1701, 1653, 797, 1773, 437, 437, 0} string = 0x8 <error: Cannot access memory at address 0x8> left = 0 is_long_double = <optimized out> width = 0 signed_number = <optimized out> step3a_jumps = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3493, 0, 0, 0, 3589, 4981, 3701, 4757, 3317, 0, 0, 0, 0, 1701, 0, 0, 0, 0, 0, 0} alt = 0 showsign = 0 is_long = <optimized out> is_char = <optimized out> pad = 32 ' ' step3b_jumps = {0 <repeats 11 times>, 4557, 0, 0, 3589, 4981, 3701, 4757, 3317, 2021, 1429, 1221, 2261, 1701, 1653, 797, 1773, 0, 0, 0} step4_jumps = {0 <repeats 14 times>, 3589, 4981, 3701, 4757, 3317, 2021, 1429, 1221, 2261, 1701, 1653, 797, 1773, 0, 0, 0} args_value = <optimized out> is_negative = <optimized out> number = <optimized out> base = <optimized out> the_arg = {pa_wchar = 10882210 L'\xa60ca2', pa_int = 10882210, pa_long_int = 10882210, pa_long_long_int = 10882210, pa_u_int = 10882210, pa_u_long_int = 10882210, pa_u_long_long_int = 10882210, pa_double = 5.3765261118300716e-317, pa_long_double = <invalid float value>, pa_string = 0xa60ca2 "fragm. from qm_malloc", pa_wstring = 0xa60ca2 L"\x67617266\x66202e6d\x206d6f72\x6d5f6d71\x6f6c6c61\x633c0063\x3e65726f\x6f635b20\x6d2f6572\x712f6d65\x6c616d5f\x2e636f6c\x31343a63\x203a5d39\x64322500\x29642528\x3a732520\x2a2e2520\x25732573\x71732573\x616d5f6d\x636f6c6c\x2c702528\x756c2520\x65722029\x6e727574\x64612073\x73657264\x70252073\x61726620\x25202e67\x73282070\x3d657a69\x29756c25\x206e6f20\x2d206425\x68206874\xa7469\x726f633c\x5b203e65\x65726f63\x6d656d2f\x6d5f712f\x6f6c6c61\x3a632e63\x5d323334\x2500203a\x25286432\x25202964\x25203a73\x25732a2e\x25732573\x5f6d7173\x6c6c616d\x2528636f\x25202c70\x2029756c\x6c6c6163\x66206465\x206d6f72\x203a7325\x25287325\x202c2964\x75646f6d\x203a656c\x203b7325\x65657246\x61726620\x6e656d67\x6f6e2074\x6f662074\x21646e75\x6d71000a\x6572665f\x633c0065\x3e65726f\x6f635b20\x6d2f6572\x712f6d65\x6c616d5f\x2e636f6c\x38343a63\x203a5d32\x64322500\x29642528\x3a732520\x2a2e2520\x25732573\x71732573\x72665f6d\x25286565\x25202c70\x202c2970\x6c6c6163\x66206465\x206d6f72\x203a7325\x25287325\xa2964\x726f633c\x5b203e65\x65726f63\x6d656d2f\x6d5f712f\x6f6c6c61\x3a632e63\x5d373834\x2500203a\x25286432\x25202964\x25203a73\x25732a2e\x25732573\x52415773\x474e494e\x7266203a\x30286565\x61632029\x64656c6c\x6f726620\x7325206d\x7325203a\x29642528\x633c000a\x3e65726f\x6f635b20\x6d2f6572\x712f6d65\x6c616d5f\x2e636f6c\x39343a63\x203a5d38\x64322500\x29642528\x3a732520\x2a2e2520\x25732573\x42732573\x203a4755\x20646162\x6e696f70\x20726574\x28207025\x2074756f\x6d20666f\x726f6d65\x6c622079\x216b636f\x61632029\x64656c6c\x6f726620\x7325206d\x7325203a\x29642528\x61202d20\x74726f62\xa676e69\x6f633c00\x203e6572\x726f635b\x656d2f65\x5f712f6d\x6c6c616d\x632e636f\x3230353a\x203a5d\x28643225\x20296425\x203a7325\x732a2e25\x73257325\x55427325\x62203a47\x70206461\x746e696f\x25207265\x6f282070\x6f207475\x656d2066\x79726f6d\x6f6c6220\x29216b63\x6c616320\x2064656c\x6d6f7266\x3a732520\x28732520\x20296425\x6769202d\x69726f6e\xa676e\x726f633c\x5b203e65\x65726f63\x6d656d2f\x6d5f712f\x6f6c6c61\x3a632e63\x5d363135\x2500203a"..., pa_pointer = 0xa60ca2, pa_user = 0xa60ca2} spec = 115 's' _buffer = {__routine = 0xe043b3a30, __arg = 0xaab0000000000000, __canceltype = 70989632, __prev = 0x87aa86 <qm_find_free+70>} _avail = <optimized out> thousands_sep = 0x0 grouping = 0xffffffffffffffff <error: Cannot access memory at address 0xffffffffffffffff> done = 223 f = 0xa62203 "s:%lu. Exec from %s:%u.\n" lead_str_end = 0xa6217c "%s: %.*s%s%s%sBUG: qm: fragm. %p (address %p) beginning overwritten (%lx)! Memory allocator was called from %s:%u. Fragment marked by %s:%lu. Exec from %s:%u.\n" end_of_spec = <optimized out> work_buffer = '\000' <repeats 88 times>, "\035\270\314\357\272\177", '\000' <repeats 22 times>, "\020\000\000\000\000\000\000\000\000\000|\266\340\066;\004\374\177\000\000\221\222\207\000\000\000\000\000\003\b\000\000\000\000\000\000\001\b\000\000\003\b\000\000\220\301\264o\272\177\000\000\220\301\264o\272\177\000\000\360-+y\272\177\000\000\000@\261o\272\177\000\000@7;\004\374\177\000\000"... workstart = 0x0 workend = <optimized out> ap_save = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0x7ffc043b3c40, reg_save_area = 0x7ffc043b3b80}} nspecs_done = 10 save_errno = 0 readonly_format = 0 __PRETTY_FUNCTION__ = "_IO_vfprintf_internal" __result = <optimized out> #2 0x00007fbaf0c9bc68 in __GI___vsyslog_chk (pri=<optimized out>, flag=-1, fmt=<optimized out>, ap=0x7ffc043b3b60) at ../misc/syslog.c:220 now_tm = {tm_sec = 47, tm_min = 6, tm_hour = 6, tm_mday = 1, tm_mon = 11, tm_year = 122, tm_wday = 4, tm_yday = 334, tm_isdst = 0, tm_gmtoff = -28800, tm_zone = 0x175a950 "PST"} now = 1669903607 fd = <optimized out> f = 0x1874040 buf = 0x0 bufsize = 0 msgoff = 21 saved_errno = 0 failbuf = "\000\000\000\000\001", '\000' <repeats 23 times> clarg = <optimized out> #3 0x00007fbaf0c9bd4c in __syslog (pri=<optimized out>, fmt=<optimized out>) at ../misc/syslog.c:117 ap = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7ffc043b3c80, reg_save_area = 0x7ffc043b3b80}} #4 0x000000000087b7e1 in qm_debug_check_frag (qm=0x7fba6fb14000, f=0x7fba792aa810, file=0x7fbaeff5065c "tls: tls_init.c", line=293, efile=0xa61ea3 "core/mem/q_malloc.c", eline=391) at core/mem/q_malloc.c:123 __llevel = -3 p = 0x7ffc043b41a0 #5 0x0000000000879b37 in qm_malloc (qmp=0x7fba6fb14000, size=120, file=0x7fbaeff5065c "tls: tls_init.c", func=0x7fbaeff5066c "ser_malloc", line=293, mname=0x7fbaeff4e021 "tls") at core/mem/q_malloc.c:391 qm = 0x7fba6fb14000 f = 0x7fba792aa810 hash = 710 list_cntr = 1 #6 0x000000000088fd7a in qm_shm_malloc (qmp=0x7fba6fb14000, size=120, file=0x7fbaeff5065c "tls: tls_init.c", func=0x7fbaeff5066c "ser_malloc", line=293, mname=0x7fbaeff4e021 "tls") at core/mem/q_malloc.c:1227 r = 0x7fba792b6fd8 #7 0x00007fbaefee3b8e in ser_malloc (size=120, fname=0x7fbaefd6dab1 "crypto/bio/bio_lib.c", fline=73) at tls_init.c:293 No locals. #8 0x00007fbaefcc8e51 in CRYPTO_zalloc () from /var/lib/ums/lib/libcrypto.so.1.1 No symbol table info available. #9 0x00007fbaefbc449e in BIO_new () from /var/lib/ums/lib/libcrypto.so.1.1 No symbol table info available. #10 0x00007fbaefe632a0 in ssl_init_wbio_buffer () from /var/lib/ums/lib/libssl.so.1.1 No symbol table info available. #11 0x00007fbaefe748e3 in state_machine () from /var/lib/ums/lib/libssl.so.1.1 No symbol table info available. #12 0x00007fbaefee9fc8 in tls_accept (c=0x7fba792a3a10, error=0x7ffc043d5fc8) at tls_server.c:468 ret = 16383 ssl = 0x7fba792abf78 cert = 0x7ffc043b4d80 tls_c = 0x7fba792abee0 tls_log = 0 pkey = 0x0 #13 0x00007fbaefefc11c in tls_h_read_f (c=0x7fba792a3a10, flags=0x7ffc043d844c) at tls_server.c:1172 r = 0x7fba792a3b38 bytes_free = 16383 bytes_read = 296 read_size = 16383 ssl_error = 0 ssl_read = 0 ssl = 0x7fba792abf78 rd_buf = "\026\003\001\001#\001\000\001\037\003\003\236\244\005YYR5"\367\370\213\352p\340\250~\020\376\a\265\224\360\064ՃvF\361\066\242\274\300\000\000\202\300\060\300,\300(\300$\300\024\300\n\000\245\000\243\000\241\000\237\000k\000j\000i\000h\000\071\000\070\000\067\000\066\000\210\000\207\000\206\000\205\300\062\300.\300*\300&\300\017\300\005\000\235\000=\000\065\000\204\300/\300+\300'\300#\300\023\300\t\000\244\000\242\000\240\000\236\000g\000@\000?\000>\000\063\000\062\000\061\000\060\000E\000D\000C\000B\300\061\300-\300)\300%\300\016\300\004\000\234\000<\000/\000A\000\377\001\000\000t\000\000\000\033\000\031\000\000\026"... wr_buf = '\000' <repeats 1856 times>... rd = {buf = 0x7ffc043c5fb0 "\026\003\001\001#\001", pos = 0, used = 296, size = 65536} wr = {buf = 0x7ffc043b5fb0 "", pos = 0, used = 0, size = 65536} tls_c = 0x7fba792abee0 enc_rd_buf = 0x0 n = 0 flush_flags = 0 err_src = 0x7fbaeff51207 "TLS read:" ip_buf = '\000' <repeats 63 times> x = 0 tls_dbg = 0 #14 0x0000000000801508 in tcp_read_headers (c=0x7fba792a3a10, read_flags=0x7ffc043d844c) at core/tcp_read.c:457 bytes = 32698 remaining = 2013924776 p = 0xffff780a14b3 <error: Cannot access memory at address 0xffff780a14b3> r = 0x7fba792a3b38 mc = 32698 body_len = 29151 mfline = 0x33100000080 <error: Cannot access memory at address 0x33100000080> mtransid = {s = 0x400000002 <error: Cannot access memory at address 0x400000002>, len = -2099512625} #15 0x00000000008099bd in tcp_read_req (con=0x7fba792a3a10, bytes_read=0x7ffc043d8450, read_flags=0x7ffc043d844c) at core/tcp_read.c:1472 bytes = -1 total_bytes = 0 resp = 1 size = 140720379622384 req = 0x7fba792a3b38 dst = {send_sock = 0x7fbaf0034118, to = {s = {sa_family = 2, sa_data = "\260Y\317\372ۂ\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 22960, sin_addr = {s_addr = 2195454671}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 2, sin6_port = 22960, sin6_flowinfo = 2195454671, sin6_addr = {__in6_u = { __u6_addr8 = "\000\000\000\000\000\000\000\000H\360\264o\272\177\000", __u6_addr16 = {0, 0, 0, 0, 61512, 28596, 32698, 0}, __u6_addr32 = {0, 0, 1874128968, 32698}}}, sin6_scope_id = 160}, sas = {ss_family = 2, __ss_padding = "\260Y\317\372ۂ\000\000\000\000\000\000\000\000H\360\264o\272\177\000\000\240\000\000\000\200\a\000\000\243\276\202a\005\000\000\000\377\377\377\377\001\000\000\000\200%\000\000\200%\000\000\024\000\000\000\000\000\000\000\001\000\000\000\001\000\000\000s\000\000\000\272\177\000\000\270s=\004\374\177\000\000\310s=\004\374\177\000\000\070hPr\272\177\000\000\b\000\000\000\377\377\377\377@\204=\004\374\177\000", __ss_align = 8}}, id = -1, send_flags = {f = 0, blst_imask = 0}, proto = 0 '\000', proto_pad0 = 0 '\000', proto_pad1 = 0} c = 54 '6' ret = 0 #16 0x000000000082310b in handle_io (fm=0x7fbaf01ff0b0, events=1, idx=-1) at core/tcp_read.c:1782 ret = 8 n = 8 read_flags = RD_CONN_SHORT_READ con = 0x7fba792a3a10 s = 115 resp = 1 t = 1646043924 ee = 0x0 #17 0x000000000081fee0 in io_wait_loop_epoll (h=0xb51830 <io_w>, t=2, repeat=0) at core/io_wait.h:1070 n = 1 r = 0 fm = 0x7fbaf01ff0b0 revents = 1 #18 0x000000000081341e in tcp_receive_loop (unix_sock=44) at core/tcp_read.c:1978 No locals. #19 0x00000000005fc385 in tcp_init_children (woneinit=0x7ffc043da918) at core/tcp_main.c:5153 r = 0 i = 7 reader_fd_1 = 44 pid = 0 si_desc = "tcp receiver (generic)\000\000\a\000\000\000\000\000\000\000\320[\003\360\272\177\000\000P\027\036\360\272\177\000\000\300\216=\004\374\177\000\000\234\b\232\000\000\000\000\000\060\375\210\000\000\000\000\000\360\311=\004\374\177\000\000\000\004\000\000\001\000\000\000H\360\264o\272\177\000\000\000\217=\004\374\177\000\000,\256\232\000\000\000\000\000\350\322\037\360\000\000\000\000pR\003\360$\000\000" si = 0x0 #20 0x0000000000439e28 in main_loop () at main.c:1857 i = 8 pid = 13357 si = 0x0 si_desc = "udp receiver child=7 sock=127.0.0.1:5060\000\060\066\060", '\000' <repeats 12 times>, "\260\373A", '\000' <repeats 21 times>, "\240\251=\004\374\177\000\000m\361}\000\000\000\000\000\300x\327\357\272\177\000\000\000\000\000\000\004\000\000\000\210\033\272", '\000' <repeats 12 times> nrprocs = 8 woneinit = 1 #21 0x0000000000448d4d in main (argc=9, argv=0x7ffc043dc9f8) at main.c:3053 long_options = {{name = 0xa7fe94 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0xa2a4bd "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0xa3e626 "alias", has_arg = 1, flag = 0x0, val = 1024}, {name = 0xa28a8f "subst", has_arg = 1, flag = 0x0, val = 1025}, {name = 0xa28a95 "substdef", has_arg = 1, flag = 0x0, val = 1026}, {name = 0xa28a9e "substdefs", has_arg = 1, flag = 0x0, val = 1027}, {name = 0xa28aa8 "server-id", has_arg = 1, flag = 0x0, val = 1028}, {name = 0xa28ab2 "loadmodule", has_arg = 1, flag = 0x0, val = 1029}, {name = 0xa28abd "modparam", has_arg = 1, flag = 0x0, val = 1030}, {name = 0xa28ac6 "log-engine", has_arg = 1, flag = 0x0, val = 1031}, {name = 0xa2a5cd "debug", has_arg = 1, flag = 0x0, val = 1032}, { name = 0xa28ad1 "cfg-print", has_arg = 0, flag = 0x0, val = 1033}, {name = 0xa28adb "atexit", has_arg = 1, flag = 0x0, val = 1034}, {name = 0x0, has_arg = 0, flag = 0x0, val = 0}} cfg_stream = 0x1691290 c = -1 r = 0 tmp = 0x7ffc043dd7b6 "" tmp_len = 0 port = 10641941 proto = 0 ahost = 0x0 aport = 0 options = 0xa28ae2 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:" ret = -1 seed = 2591128234 rfd = 4 debug_save = 0 debug_flag = 0 dont_fork_cnt = 0 n_lst = 0x0 p = 0x0 st = {st_dev = 21, st_ino = 1379545578, st_nlink = 2, st_mode = 16877, st_uid = 990, st_gid = 990, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0, st_atim = { tv_sec = 1669273250, tv_nsec = 445763824}, st_mtim = {tv_sec = 1669273250, tv_nsec = 445763824}, st_ctim = {tv_sec = 1669273250, tv_nsec = 445763824}, __glibc_reserved = {0, 0, 0}} tbuf = '\000' <repeats 24 times>, "\200\037\000\000\377\377\000\000kage/lib/mysql:", '\000' <repeats 153 times>... option_index = 0

```

#### Log Messages

``` /var/lib/ums/sbin/kamailio[13339]: ALERT: <core> [main.c:789]: handle_sigs(): child process 13364 exited by a signal 11 /var/lib/ums/sbin/kamailio[13339]: ALERT: <core> [main.c:792]: handle_sigs(): core was generated /var/lib/ums/sbin/kamailio[13339]: INFO: <core> [main.c:813]: handle_sigs(): terminating due to SIGCHLD /var/lib/ums/sbin/kamailio[13371]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13370]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13367]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13365]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13366]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13360]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13369]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13350]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13353]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13356]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13340]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13355]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13348]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13354]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13351]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13349]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13347]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13344]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13342]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13343]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13346]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13345]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13341]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13357]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13363]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13359]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13362]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13361]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received /var/lib/ums/sbin/kamailio[13358]: INFO: <core> [main.c:868]: sig_usr(): signal 15 received ```

### Additional Information

* **Kamailio Version** ``` version: kamailio 5.5.4 (x86_64/linux) 54c9df flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 54c9df compiled on 09:03:48 Nov 17 2022 with clang 9.0 ```

* **Operating System**:

``` Distributor ID: Debian Description: Debian GNU/Linux 10 (buster) Release: 10 Codename: buster

```