software/RELEASES/ircservices/achurch.org/services/lists/ircservices/2001/001405.html

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  14    <H1>[IRCServices] Services 4.5pre6 released</H1>
  15     <B>David Narayan</B>
  16     <A HREF="mailto:ircservices%40ircservices.za.net?Subject=%5BIRCServices%5D%20Services%204.5pre6%20released&In-Reply-To=3a87a2b8.75171%40prima-lan.net"
  17        TITLE="[IRCServices] Services 4.5pre6 released">jester at phrixus.net
  18        </A><BR>
  19     <I>Mon Feb 12 07:14:05 PST 2001</I>
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  34 <PRE>&gt;&gt;<i>Last time I tried using StatServ (with IRCServices 4.4.8 and
  35 </I>&gt;&gt;<i>DreamForge-based ircd), after a few netsplits and netbursts, Services
  36 </I>&gt;&gt;<i>would enter an infinite loop and stop responding.  Has this been fixed
  37 </I>&gt;&gt;<i>for 4.5.0, or should I go back and try to do it again to find a fix for
  38 </I>&gt;&gt;<i>it?
  39 </I>&gt;<i>
  40 </I>&gt;<i>      This may be fixed for pre6--I was never able to duplicate it
  41 </I>&gt;<i>      myself, but
  42 </I>&gt;<i> I've fixed and cleaned up a lot of StatServ code for this release.
  43 </I>&gt;<i>
  44 </I>
  45 Using ircservices4.4.9 I was able to duplicate it.  Granted much of
  46 the code may have changed between this version and 4.4.5 but using
  47 gdb indicates where services locks up.
  48
  49 To lock it, I had a 3 server network (tested with unreal and df467)
  50 and I /squit'ed the two leafs from the hub. After the second leaf
  51 reconnected, services would not respond.  Attaching gdb to the process
  52 indicates the following.
  53
  54 --- gdb output ---
  55 Attaching to program: /usr/local/bin/services, Pid 10163
  56 Reading symbols from /lib/libnsl.so.1...done.
  57 Loaded symbols for /lib/libnsl.so.1
  58 Reading symbols from /lib/libresolv.so.2...done.
  59 Loaded symbols for /lib/libresolv.so.2
  60 Reading symbols from /lib/libc.so.6...done.
  61 Loaded symbols for /lib/libc.so.6
  62 Reading symbols from /lib/ld-linux.so.2...done.
  63 Loaded symbols for /lib/ld-linux.so.2
  64 Reading symbols from /lib/libnss_files.so.2...done.
  65 Loaded symbols for /lib/libnss_files.so.2
  66 Reading symbols from /lib/libnss_nisplus.so.2...done.
  67 Loaded symbols for /lib/libnss_nisplus.so.2
  68 Reading symbols from /lib/libnss_nis.so.2...done.
  69 Loaded symbols for /lib/libnss_nis.so.2
  70 stats_do_server (servername=0xbffff7b7 &quot;entropy2.phrixus.net&quot;,
  71 serverhub=0xbffff9f0 &quot;entropy.phrixus.net&quot;)
  72     at statistics.c:598
  73 598                         tmpserver = tmpserver-&gt;sibling;
  74 (gdb) list
  75 593                 if (!server-&gt;hub-&gt;child) {
  76 594                     server-&gt;hub-&gt;child = server;
  77 595                 } else {
  78 596                     tmpserver = server-&gt;hub-&gt;child;
  79 597                     while (tmpserver-&gt;sibling)
  80 598                         tmpserver = tmpserver-&gt;sibling;
  81 599                     tmpserver-&gt;sibling = server;
  82 600                 }
  83 601             }
  84 602         }
  85 (gdb) bt
  86 #0  stats_do_server (servername=0xbffff7b7 &quot;entropy2.phrixus.net&quot;,
  87 serverhub=0xbffff9f0 &quot;entropy.phrixus.net&quot;)
  88     at statistics.c:598
  89 #1  0x806661f in do_server (source=0xbffff9f0 &quot;entropy.phrixus.net&quot;, ac=3,
  90 av=0x812db58) at servers.c:153
  91 #2  0x8066070 in process () at process.c:179
  92 #3  0x80598e1 in main (ac=1, av=0xbffffae4, envp=0xbffffaec) at main.c:274
  93 #4  0x40061f31 in __libc_start_main (main=0x80595e4 &lt;main&gt;, argc=1,
  94 ubp_av=0xbffffae4, init=0x8049028 &lt;_init&gt;,
  95     fini=0x806b5ac &lt;_fini&gt;, rtld_fini=0x4000e274 &lt;_dl_fini&gt;,
  96 stack_end=0xbffffadc)
  97     at ../sysdeps/generic/libc-start.c:129
  98 (gdb)
  99
 100 Presumably this means that it is stuck in the while loop, since
 101 tmpserver-&gt;sibling is always &quot;true&quot;.
 102
 103 -David
 104
 105 --
 106 David Narayan
 107 <A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices">jester at phrixus.net</A>
 108
 109
 110
 111 </PRE>
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