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  14    <H1>[IRCServices] Segfault on Opteron (64-bit) Linux</H1>
  15     <B>Liverbugg</B>
  16     <A HREF="mailto:ircservices%40ircservices.za.net?Subject=%5BIRCServices%5D%20Segfault%20on%20Opteron%20%2864-bit%29%20Linux&In-Reply-To="
  17        TITLE="[IRCServices] Segfault on Opteron (64-bit) Linux">liverbugg at rinux.org
  18        </A><BR>
  19     <I>Tue Oct  5 18:50:24 PDT 2004</I>
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  34 <PRE>I'm trying to run ircservices on a dual opteron server and I'm getting
  35 segfaults.  I've tried 5.0.31, 5.0.38, and 5.0.41 over the last few
  36 months and just had enough time recently to try to debug.  The computer
  37 is a dual Opteron 242 running Gentoo Linux.  The server I'm trying to
  38 link to is Unrealircd-3.2 running on the same machine.  Ircservices runs
  39 fine with the same config linking to the same server if I run it on a
  40 32bit x86 machine.
  41
  42 The compile has lots of warnings that I don't see on a 32bit machine like:
  43
  44 modules/statserv/main.c:127: warning: cast from pointer to integer of
  45 different size
  46 modules/statserv/main.c:127: warning: cast to pointer from integer of
  47 different size
  48
  49 This is what I see in the the log when running ircservices -debug:
  50
  51 [Oct 04 20:36:13.560828 2004] IRC Services 5.0.41 starting up (options:
  52 debug)
  53 [Oct 04 20:36:13.560991 2004] debug: Loading language 0 from file
  54 `languages/en_us'
  55 .....unimportant stuff cut.....
  56 [Oct 04 20:36:13.578803 2004] debug: Sent: NICK HelpServ 1 1096936573
  57 services lanchelms.com services.lanchelms 0 +Sqd lanchelms.com :Help Server
  58 [Oct 04 20:36:13.578835 2004] debug: Received: :squall.local NOTICE AUTH
  59 :<i>*** Looking up your hostname...
  60 </I>[Oct 04 20:36:32.983294 2004]
  61
  62 If I run it with ircservices -debug -nofork all I see in the log is this
  63 (this is from 2 tries):
  64
  65 [Oct 04 19:59:43 2004] [Oct 04 20:04:50 2004]
  66
  67 If I run it with no parameters the server sees services come on line but
  68 die right away:
  69
  70 -squall.local- *** Notice -- (link) Link squall.local -&gt;
  71 services.lanchelms[@127.0.0.1.6677] established
  72 -squall.local- Lost connection to
  73 services.lanchelms[127.0.0.1]:Connection reset by peer
  74
  75 but if I run it with -nofork the server never sees the connection
  76
  77 There is no core generated, even when I compiled with ./configure
  78 -dumpcore -cflags -g -defaults, but here is what gdb shows when running
  79 ircservices in it with -nofork -debug:
  80
  81 Squall bin # gdb ./ircservices
  82 GNU gdb 6.2
  83 Copyright 2004 Free Software Foundation, Inc.
  84 GDB is free software, covered by the GNU General Public License, and you are
  85 welcome to change it and/or distribute copies of it under certain
  86 conditions.
  87 Type &quot;show copying&quot; to see the conditions.
  88 There is absolutely no warranty for GDB.  Type &quot;show warranty&quot; for details.
  89 This GDB was configured as &quot;x86_64-pc-linux-gnu&quot;...Using host
  90 libthread_db library &quot;/lib/libthread_db.so.1&quot;.
  91
  92 Starting program: /opt/ircservices/bin/ircservices -nofork -debug
  93 warning: Unable to find dynamic linker breakpoint function.
  94 GDB will be unable to debug shared library initializers
  95 and track explicitly loaded dynamic code.
  96
  97 Program received signal SIGSEGV, Segmentation fault.
  98 0x0000002a956d63d0 in strlen () from /lib/libc.so.6
  99 (gdb) bt
 100 #0  0x0000002a956d63d0 in strlen () from /lib/libc.so.6
 101 #1  0x0000002a956aca46 in vfprintf () from /lib/libc.so.6
 102 #2  0x0000002a956ae4f9 in vfprintf () from /lib/libc.so.6
 103 #3  0x0000002a956aa34a in vfprintf () from /lib/libc.so.6
 104 #4  0x000000000040bf28 in vlogprintf (fmt=0x47e2dd &quot;%s&quot;, args=0x7fbffff070)
 105     at log.c:123
 106 #5  0x000000000040bff7 in logprintf (fmt=0x47e2dd &quot;%s&quot;) at log.c:131
 107 #6  0x000000000040c018 in logputs (
 108     str=0x7fbffff1a0 &quot;[Oct 05 19:56:41.285530 2004] &quot;) at log.c:137
 109 #7  0x000000000040c163 in write_time () at log.c:167
 110 #8  0x000000000040c46a in log (
 111     fmt=0x47d8f0 &quot;IRC Services %s starting up (options:%s%s%s)&quot;) at
 112 log.c:287
 113 #9  0x00000000004097c7 in init (ac=3, av=0x7fbffff568) at init.c:756
 114 #10 0x000000000040cf78 in main (ac=3, av=0x7fbffff568, envp=0x7fbffff588)
 115     at main.c:225
 116 (gdb)
 117
 118 Let me know if theres any other info you need or if you want access to
 119 the machine to debug.
 120
 121 Thanks,
 122
 123  - Matt
 124
 125
 126 </PRE>
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