<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2800.1458" name=GENERATOR></HEAD> <BODY> <DIV><FONT face=Arial> <DIV><SPAN class=984500518-14092004><FONT size=2>Hi, folks.</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>Installing nagios-plugins-1.4.0a1 on AIX 5.1 ML04, I've found that it's neccessary to configure the compilation with:</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>CFLAGS="-g -O2 -maix64" OBJECT_MODE=32_64 ./configure</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>Otherwise, check_disk will lock up and will not return even when run without options. I've found that the problem is at lib/mountlist.c around line 723:</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>for (thisent = entries; thisent < entries + bufsize;<BR> thisent += vmp->vmt_length)</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>After doing a little research on Google, I found that vmount as defined in <sys/vmount.h> has a variable type definition:</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>struct vmount {<BR> uint vmt_revision; /* I revision level, currently 1 */<BR> uint vmt_length; /* I total length of structure and data */<BR>#if !defined(_KERNEL) && defined(__64BIT__)<BR> fsid64_t vmt_fsid; /* O id of file system */<BR>#else<BR> fsid_t vmt_fsid; /* O id of file system */<BR>#endif<BR>(...)</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>When compiled in 32-bit mode in an AIX 64-bit machine/os, vmt_length turns out to be zero at some point - this is because vmt_fsid is 64-bit and this is not taken into account by the plugin and <SPAN class=421174018-14092004>its</SPAN> lower-order bits are thrown out. After this point, thisent is not increased and we get a infinite loop.</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>The solution is to use -maix64. According to gcc manual:</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT face=Arial size=2>"Enable 64-bit AIX ABI and calling convention: 64-bit pointers, 64-bit <CODE>long</CODE> type, and the infrastructure needed to support them. Specifying <CODE>-maix64</CODE> implies <CODE>-mpowerpc64</CODE> and <CODE>-mpowerpc</CODE>, while <CODE>-maix32</CODE> disables the 64-bit ABI and implies <CODE>-mno-powerpc64</CODE>. GCC defaults to <CODE>-maix32</CODE>."</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>Thus, with maix64 we compare again apples to apples, and check_disk works without a hitch.</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>I don't know <SPAN class=421174018-14092004>now </SPAN>what is easier:</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2></FONT></SPAN> </DIV> <OL> <LI><FONT size=2><SPAN class=984500518-14092004>Modify ./configure to add -maix64 <SPAN class=421174018-14092004>to CFLAGS whem using gcc </SPAN><SPAN class=421174018-14092004>(and its xlC counterpart) </SPAN>when it knows that is running on a 64-bit machine;</SPAN> </FONT> <LI><SPAN class=984500518-14092004><FONT size=2>Modify lib/mountlist.c to handle both situations.</FONT></SPAN></LI></OL> <DIV><SPAN class=984500518-14092004><FONT size=2>[]'s</FONT></SPAN></DIV> <DIV><SPAN class=984500518-14092004><FONT size=2>Paulo</FONT></SPAN></DIV></FONT></DIV> <DIV> </DIV> <DIV align=left><FONT face=v size=2><STRONG>Paulo Afonso Graner Fessel</STRONG></FONT></DIV> <DIV align=left><EM><FONT size=1>Administrador de Ambiente e Sistemas UNIX</FONT></EM></DIV> <DIV align=left><FONT size=1> <DIV align=left><FONT size=1><A href="mailto:paulo.fessel@primesys.com.br">paulo.fessel@primesys.com.br</A></FONT></DIV>OWT</FONT></DIV> <DIV align=left><FONT size=1>Fone: +55 (11) 3038-6554</FONT></DIV> <DIV align=left><FONT size=1>Fax: +55 (11) 3038-6508</FONT></DIV> <DIV align=left><FONT size=1><A href="http://www.primesys.com.br/">http://www.primesys.com.br</A></FONT></DIV> <DIV align=left> </DIV> <DIV align=left><IMG id=_x0000_i1025 height=67 src="cid:421174018@14092004-2D78" width=110 border=0></DIV> <DIV align=left> </DIV> <DIV> </DIV></BODY></HTML>