[ViewVC] Annotation of: svn/branches/ircd-hybrid-newconf/BUGS

 Known Bugs worthy of a mention:
--------------------------------------------------------------------------------
  
1.  /MODUNLOAD causes cores:
    - If a module is modified before being unloaded, /MODUNLOAD (and
      therefore /MODRELOAD) may cause a core.

      This problem is caused by the behaviour of the OS, which treats
      shared libraries differently to executables (modifying the ircd
      binary whilst it is running would also cause a core, but is denied
      by the OS). There is no way to fix this at the application level,
      and fixing the OS to do the right thing is also difficult.

      A workaround to avoid coring is possible however. To install new
      modules, first remove or rename the old module, then copy/move the
      new file into place. /MODUNLOAD will then work successfully.

      Alternatively, running ./configure with the --disable-shared-modules
      argument will link all the commands statically, losing the advantages
      of upgrading at runtime, but reducing the chances of accidentally
      coring your server.

2.  Solaris stock 32bit stdio is limited to 256 fds. This breaks when using
    cryptlinks.

3.  New bug reported in some 64 bit and powerpc (yellowdog linux) code.
    This bug is actually in gcc itself, the spec says you don't modify
    a va_list in libc, but gcc does. The bug manifests itself as
    immediately coring when anyone types anything on a channel.
    You will find a quick work around in contrib until this bug in gcc
    is fixed.

    This is a quick test program
    libc_vprintf
    cc -o libc_vprintf libc_vprintf.c
    ./libc_vprintf

    If the program doesn't core, you are fine.

    The work around is the vprintf_fix.patch in contrib.
    (Reported by several people, fix and test by David)
 
 BUG REPORTS: If you run this code and encounter problems, you should report
 the bug on our SourceForge.net bug tracker, which you can find at this URL:

 https://sourceforge.net/tracker/?atid=409046&group_id=33573&func=browse

 Please include a gdb backtrace and a copy of your defaults.h (if changed),
 setup.h, and ircd.conf with any report (with passwords and other sensitive
 information masked).

 For information how to get a gdb backtrace, see INSTALL (near the end of file).

--------------------------------------------------------------------------------
$Id: BUGS,v 7.60 2005/07/07 18:03:33 adx Exp $
Revision:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (20 years, 9 months ago) by adx
Original Path:	*ircd-hybrid/BUGS*
File size:	2411 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	User	Rev	Content
1	adx	30	Known Bugs worthy of a mention:
2			--------------------------------------------------------------------------------
3
4			1. /MODUNLOAD causes cores:
5			- If a module is modified before being unloaded, /MODUNLOAD (and
6			therefore /MODRELOAD) may cause a core.
7
8			This problem is caused by the behaviour of the OS, which treats
9			shared libraries differently to executables (modifying the ircd
10			binary whilst it is running would also cause a core, but is denied
11			by the OS). There is no way to fix this at the application level,
12			and fixing the OS to do the right thing is also difficult.
13
14			A workaround to avoid coring is possible however. To install new
15			modules, first remove or rename the old module, then copy/move the
16			new file into place. /MODUNLOAD will then work successfully.
17
18			Alternatively, running ./configure with the --disable-shared-modules
19			argument will link all the commands statically, losing the advantages
20			of upgrading at runtime, but reducing the chances of accidentally
21			coring your server.
22
23			2. Solaris stock 32bit stdio is limited to 256 fds. This breaks when using
24			cryptlinks.
25
26			3. New bug reported in some 64 bit and powerpc (yellowdog linux) code.
27			This bug is actually in gcc itself, the spec says you don't modify
28			a va_list in libc, but gcc does. The bug manifests itself as
29			immediately coring when anyone types anything on a channel.
30			You will find a quick work around in contrib until this bug in gcc
31			is fixed.
32
33			This is a quick test program
34			libc_vprintf
35			cc -o libc_vprintf libc_vprintf.c
36			./libc_vprintf
37
38			If the program doesn't core, you are fine.
39
40			The work around is the vprintf_fix.patch in contrib.
41			(Reported by several people, fix and test by David)
42
43			BUG REPORTS: If you run this code and encounter problems, you should report
44			the bug on our SourceForge.net bug tracker, which you can find at this URL:
45
46			https://sourceforge.net/tracker/?atid=409046&group_id=33573&func=browse
47
48			Please include a gdb backtrace and a copy of your defaults.h (if changed),
49			setup.h, and ircd.conf with any report (with passwords and other sensitive
50			information masked).
51
52			For information how to get a gdb backtrace, see INSTALL (near the end of file).
53
54			--------------------------------------------------------------------------------
55			$Id: BUGS,v 7.60 2005/07/07 18:03:33 adx Exp $