Since upgrading from 433 to 434 I'm seeing a crash when calling send() from the corex module The backtrace is included below It looks like the problem was introduced in 027495fb (cherry picked into 43: 4fdd1169, 42: 5b93cc21 and 41: 8e010d9f) I can confirm that 434 with 4fdd1169 reverted doesn't crash #0 memchr () at /sysdeps/x86_64/memchrS:33 33 /sysdeps/x86_64/memchrS: No such file or directory (gdb) bt #0 memchr () at /sysdeps/x86_64/memchrS:33 #1 0x00007f477b6eb50d in corex_send (msg=0x7f4780940508, pu=<optimized out>, proto=proto@entry=PROTO_UDP) at corex_libc:265 #2 0x00007f477b6edf3e in w_send (msg=<optimized out>, su=<optimized out>, sq=<optimized out>) at corex_modc:174 #3 0x0000000000429127 in do_action (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f47808553c8, msg=msg@entry=0x7f4780940508) at actionc:1059 #4 0x0000000000427dc9 in run_actions (h=h@entry=0x7ffe874baf10, a=0x7f47808553c8, msg=msg@entry=0x7f4780940508) at actionc:1548 #5 0x00000000004297fc in do_action (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f4780855ed8, msg=msg@entry=0x7f4780940508) at actionc:1048 #6 0x0000000000427dc9 in run_actions (h=h@entry=0x7ffe874baf10, a=0x7f4780855ed8, msg=msg@entry=0x7f4780940508) at actionc:1548 #7 0x00000000004297fc in do_action (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f4780856020, msg=msg@entry=0x7f4780940508) at actionc:1048 #8 0x0000000000427dc9 in run_actions (h=h@entry=0x7ffe874baf10, a=0x7f4780856020, msg=msg@entry=0x7f4780940508) at actionc:1548 #9 0x00000000004297fc in do_action (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f4780856248, msg=msg@entry=0x7f4780940508) at actionc:1048 #10 0x0000000000427dc9 in run_actions (h=h@entry=0x7ffe874baf10, a=0x7f478084bdb0, msg=msg@entry=0x7f4780940508) at actionc:1548 #11 0x00000000004298e5 in do_action (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f47808075e0, msg=msg@entry=0x7f4780940508) at actionc:677 #12 0x0000000000427dc9 in run_actions (h=h@entry=0x7ffe874baf10, a=a@entry=0x7f47808005f0, msg=msg@entry=0x7f4780940508) at actionc:1548 #13 0x0000000000434610 in run_top_route (a=0x7f47808005f0, msg=msg@entry=0x7f4780940508, c=c@entry=0x0) at actionc:1634 #14 0x00000000004f768e in receive_msg (buf=<optimized out>, len=<optimized out>, rcv_info=<optimized out>) at receivec:196 #15 0x00000000005dee7d in udp_rcv_loop () at udp_serverc:495 #16 0x00000000004a8a43 in main_loop () at mainc:1577 #17 0x00000000004272e7 in main (argc=<optimized out>, argv=<optimized out>) at mainc:2553 --- Reply to this email directly or view it on GitHub: https://github.com/kamailio/kamailio/issues/496