Hi, i try to test lua in haproxy and i got segfault while doing curl request :
# curl http://127.0.0.1 -H "X-debug-me: yes" curl: (52) Empty reply from server --- # gdb ./haproxy GNU gdb (GDB) 7.4.1-debian Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /root/haproxy/haproxy...done. (gdb) run -f /etc/haproxy/haproxy.cfg -db Starting program: /root/haproxy/haproxy -f /etc/haproxy/haproxy.cfg -db Program received signal SIGSEGV, Segmentation fault. __memmove_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:2976 2976 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: Aucun fichier ou dossier de ce type. (gdb) bt #0 __memmove_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:2976 #1 0x00000000004130a9 in buffer_insert_line2 (b=0x7e53b0, pos=0x7e541c "\r\n", str=0x782850 "", len=20) at src/buffer.c:126 #2 0x0000000000468c99 in http_header_add_tail2 (msg=0x7cd5a0, hdr_idx=0x7cd540, text=0x782850 "", len=20) at src/proto_http.c:507 #3 0x0000000000472ebb in http_process_request (s=0x7cd1e0, req=0x7cd1f0, an_bit=512) at src/proto_http.c:4596 #4 0x00000000004b7202 in process_stream (t=0x7d4cb0) at src/stream.c:1741 #5 0x00000000004196c4 in process_runnable_tasks () at src/task.c:238 #6 0x000000000040c148 in run_poll_loop () at src/haproxy.c:1515 #7 0x000000000040cca2 in main (argc=4, argv=0x7fffffffe6f8) at src/haproxy.c:1874 --- # ./haproxy -vv HA-Proxy version 1.6-dev3-03d0e4-59 2015/08/11 Copyright 2000-2015 Willy Tarreau <wi...@haproxy.org> Build options : TARGET = linux2628 CPU = generic CC = gcc CFLAGS = -O0 OPTIONS = USE_ZLIB=1 USE_OPENSSL=1 USE_PCRE=1 Default settings : maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200 Encrypted password support via crypt(3): yes Built with zlib version : 1.2.7 Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip") Built with OpenSSL version : OpenSSL 1.0.1e 11 Feb 2013 Running on OpenSSL version : OpenSSL 1.0.1e 11 Feb 2013 OpenSSL library supports TLS extensions : yes OpenSSL library supports SNI : yes OpenSSL library supports prefer-server-ciphers : yes Built with PCRE version : 8.30 2012-02-04 PCRE library supports JIT : no (USE_PCRE_JIT not set) Built with Lua version : Lua 5.3.1 Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND Available polling systems : epoll : pref=300, test result OK poll : pref=200, test result OK select : pref=150, test result OK Total: 3 (3 usable), will use epoll. --- global log /dev/log local0 chroot /var/lib/haproxy stats socket /run/haproxy/admin.sock mode 660 level admin stats timeout 30s user haproxy group haproxy daemon nbproc 1 # Default SSL material locations ca-base /etc/ssl/certs crt-base /etc/ssl/private # Default ciphers to use on SSL-enabled listening sockets. # For more information, see ciphers(1SSL). ssl-default-bind-ciphers kEECDH+aECDSA+AES:kEECDH+aRSA+AES:kRSA+AES:+AES256:RC4-SHA:!kEDH:!LOW:!EXP:!MD5:!aNULL:!eNULL ssl-default-bind-options no-sslv3 lua-load /root/haproxy/mylua.lua defaults log global mode http option httplog option log-health-checks option log-separate-errors maxconn 19500 # Should be slightly smaller than global.maxconn. timeout client 60s # Client and server timeout must match the longest timeout server 60s # time we may wait for a response from the server. timeout queue 60s # Don't queue requests too long if saturated. timeout connect 4s # There's no reason to change this one. timeout http-request 5s # A complete request may never take that long. # Uncomment the following one to protect against nkiller2. But warning! # some slow clients might sometimes receive truncated data if last # segment is lost and never retransmitted : # option nolinger option httpclose option abortonclose balance roundrobin option forwardfor header remote-ip retries 2 option redispatch errorfile 400 /etc/haproxy/errors/400.http errorfile 403 /etc/haproxy/errors/403.http errorfile 408 /etc/haproxy/errors/408.http errorfile 500 /etc/haproxy/errors/500.http errorfile 502 /etc/haproxy/errors/502.http errorfile 503 /etc/haproxy/errors/503.http errorfile 504 /etc/haproxy/errors/504.http ### HTTP ### frontend fe:80 bind 127.0.0.1:80 acl debugme req.hdr_cnt(X-debug-me) ge 1 http-request lua mirror if debugme default_backend be frontend fe:443 bind 127.0.0.1:443 ssl crt /etc/ssl/private default_backend be backend be server s1 127.0.0.2 server s2 127.0.0.3 server s3 127.0.0.4 Regards, -- Marc-Antoine
