Hi! I have multiple instances of haproxy=1.8-3 running with nbthreads=2 and more. Those instances sometimes fail with an error like that in dmesg: haproxy[22287]: segfault at 5574915aab8a ip 000055828ce3adea sp 00007ffc105c8fb0 error 6 in haproxy[55828cd2f000+169000] Instances with no nbthreads-parameter set are not affected.
addr2line gave a tip to the falling function: /usr/bin/addr2line -e /usr/sbin/haproxy -fCi 0x10bdea pendconn_grab_from_px ??:? Version of haproxy: haproxy -vv HA-Proxy version 1.8.3-1 2018/01/09 Copyright 2000-2017 Willy Tarreau <[email protected]> Build options : TARGET = linux2628 CPU = generic CC = gcc CFLAGS = -g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 OPTIONS = USE_GETADDRINFO=1 USE_ZLIB=1 USE_REGPARM=1 USE_THREAD=1 USE_OPENSSL=1 USE_LUA=1 USE_PCRE=1 USE_PCRE_JIT=1 USE_TFO=1 USE_NS=1 Default settings : maxconn = 2000, bufsize = 16384, maxrewrite = 1024, maxpollevents = 200 Built with OpenSSL version : OpenSSL 1.0.1f 6 Jan 2014 Running on OpenSSL version : OpenSSL 1.0.1f 6 Jan 2014 OpenSSL library supports TLS extensions : yes OpenSSL library supports SNI : yes OpenSSL library supports : SSLv3 TLSv1.0 TLSv1.1 TLSv1.2 Built with Lua version : Lua 5.3.1 Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT IP_FREEBIND Encrypted password support via crypt(3): yes Built with multi-threading support. Built with PCRE version : 8.31 2012-07-06 Running on PCRE version : 8.31 2012-07-06 PCRE library supports JIT : no (libpcre build without JIT?) Built with zlib version : 1.2.8 Running on zlib version : 1.2.8 Compression algorithms supported : identity("identity"), deflate("deflate"), raw-deflate("deflate"), gzip("gzip") Built with network namespace support. 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. Available filters : [SPOE] spoe [COMP] compression [TRACE] trace -- Best regards, Maksim Kupriianov
