haproy dumps core when unable to resolve host names
Hello! I am using haproxy-1.5-dev17. I use hostnames in my config file rather than IPs. If DNS is not working, haproxy will dump core on start or config check. How to repeat: Put some fake stuff in /etc/resolv.conf so resolver does not work. Run haproxy -c -f /path/to/haproxy.conf: /tmp# ./haproxy -c -f ./haproxy.conf Segmentation fault (core dumped) # ./haproxy -vv HA-Proxy version 1.5-dev17 2012/12/28 Copyright 2000-2012 Willy Tarreau w...@1wt.eu Build options : TARGET = freebsd CPU = generic CC = cc CFLAGS = -O2 -pipe -O2 -fno-strict-aliasing -pipe -DFREEBSD_PORTS OPTIONS = USE_GETADDRINFO=1 USE_ZLIB=1 USE_OPENSSL=1 USE_STATIC_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, deflate, gzip Built with OpenSSL version : OpenSSL 0.9.8x 10 May 2012 OpenSSL library supports TLS extensions : yes OpenSSL library supports SNI : yes OpenSSL library supports prefer-server-ciphers : yes Available polling systems : kqueue : pref=300, test result OK poll : pref=200, test result OK select : pref=150, test result OK Total: 3 (3 usable), will use kqueue.
Re: haproy dumps core when unable to resolve host names
Hi Dmitry, On Fri, Mar 15, 2013 at 03:25:10PM +0400, Dmitry Sivachenko wrote: Hello! I am using haproxy-1.5-dev17. I use hostnames in my config file rather than IPs. If DNS is not working, haproxy will dump core on start or config check. How to repeat: Put some fake stuff in /etc/resolv.conf so resolver does not work. Run haproxy -c -f /path/to/haproxy.conf: /tmp# ./haproxy -c -f ./haproxy.conf Segmentation fault (core dumped) This is a known issue with GETADDRINFO which was fixed in a recent snapshot : commit 58ea039115f3faaf29529e0df97f4562436fdd09 Author: Sean Carey ca...@basho.com Date: Fri Feb 15 23:39:18 2013 +0100 BUG/MEDIUM: config: fix parser crash with bad bind or server address If an address is improperly formated on a bind or server address and haproxy is built for using getaddrinfo, then a crash may occur upon the call to freeaddrinfo(). Thanks to Jon Meredith for helping me patch this for SmartOS, I am not a C/GDB wizard. I think you'd better update to latest snapshot until we emit dev18. Best regards, Willy
Re: haproy dumps core when unable to resolve host names
On 15.03.2013, at 15:54, Willy Tarreau w...@1wt.eu wrote: Hi Dmitry, On Fri, Mar 15, 2013 at 03:25:10PM +0400, Dmitry Sivachenko wrote: Hello! I am using haproxy-1.5-dev17. I use hostnames in my config file rather than IPs. If DNS is not working, haproxy will dump core on start or config check. How to repeat: Put some fake stuff in /etc/resolv.conf so resolver does not work. Run haproxy -c -f /path/to/haproxy.conf: /tmp# ./haproxy -c -f ./haproxy.conf Segmentation fault (core dumped) This is a known issue with GETADDRINFO which was fixed in a recent snapshot : commit 58ea039115f3faaf29529e0df97f4562436fdd09 Author: Sean Carey ca...@basho.com Date: Fri Feb 15 23:39:18 2013 +0100 BUG/MEDIUM: config: fix parser crash with bad bind or server address If an address is improperly formated on a bind or server address and haproxy is built for using getaddrinfo, then a crash may occur upon the call to freeaddrinfo(). Thanks to Jon Meredith for helping me patch this for SmartOS, I am not a C/GDB wizard. I think you'd better update to latest snapshot until we emit dev18. Ah, okay, thanks!
