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Date: Thu, 23 Jan 2014 00:33:07 +0400
From: Sergey Matveychuk <sem@FreeBSD.org>
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Subject: mysql 5.1 client core dumps with a new resolver
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Hi.

% mysql -h dbhost -u sem -p
Enter password:
Ошибка сегментации(core dumped)
% uname -a
FreeBSD dbhost 10.0-RELEASE FreeBSD 10.0-RELEASE #1 r260922: Tue Jan 21 
04:46:39 MSK 2014     root@dbhost:/usr/obj/usr/src/sys/GENERIC  amd64

% gdb /usr/local/bin/mysql mysql.core
...
(gdb) bt
#0  0x0000000801da16f3 in gethostent () from /lib/libc.so.7
#1  0x0000000801d9ff0f in nsdispatch () from /lib/libc.so.7
#2  0x0000000801d9e87f in gethostbyname_r () from /lib/libc.so.7
#3  0x0000000801d9e5c4 in gethostbyname_r () from /lib/libc.so.7
#4  0x0000000800cfd410 in mysql_real_connect ()
    from /usr/local/lib/mysql/libmysqlclient.so.16
#5  0x00000000004047da in ?? ()

It's a fresh installed bhyve box.