Ok. Thanks. I probably am not good enough with C to be able to fix it
myself, but hopefully I can find it with gdb and provide enough
information for someone else to be able to fix it if I can give a detailed
bug report.
Thanks,
Mike
On Mon, Jun 25, 2001 at 07:24:59AM -0500, Scott S. Goodwin wrote:
> The segfault sounds like a bug. You're starting it as root, so it should
> have access to the priviledged port to open. Since I haven't heard
> anyone else getting this segfault with 3.4, I suspect it's a problem
> specific to AOLserver on FreeBSD 5.0.
>
> You can report the bug to the AOLserver project at SourceForge.net, or
> you can find the problem and fix it. The segfault is probably happening
> in nsmain.c. You can use GDB to run nsd and do a 'backtrace' after the
> segfault to find out where it's occuring. Here's an example gdb session
> I ran a while back for a similar problem:
>
>
> [root@i]# gdb /p/d/emis_test2/bin/nsd
> GNU gdb 5.0
> Copyright 2000 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for
> details.
> This GDB was configured as "i686-pc-linux-gnu"...
> (gdb) run -u daemon -g daemon -t /p/d/emis_test2/nsd.tcl -s emis
> Starting program: /p/d/emis_test2/bin/nsd -u daemon -g daemon -t
> /p/d/emis_test2/nsd.tcl -s emis
> [New Thread 1024 (runnable)]
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1024 (runnable)]
> 0x401498e7 in _nss_files_getgrnam_r (name=0x0, result=0x40141164,
> buffer=0x810a9b0 "root", buflen=1024, errnop=0x4013fd60) at
> nss_files/files-grp.c:35
> 35 nss_files/files-grp.c: No such file or directory.
> (gdb) bt
> #0 0x401498e7 in _nss_files_getgrnam_r (name=0x0, result=0x40141164,
> buffer=0x810a9b0 "root", buflen=1024, errnop=0x4013fd60) at
> nss_files/files-grp.c:35
> #1 0x400df3bb in __getgrnam_r (name=0x0, resbuf=0x40141164,
> buffer=0x810a9b0 "root", buflen=1024, result=0xbfffe5a4) at
> ../nss/getXXbyYY_r.c:182
> #2 0x400deb40 in getgrnam (name=0x0) at ../nss/getXXbyYY.c:123
> #3 0x806abf2 in Ns_GetGid (group=0x0) at id.c:104
> #4 0x806e836 in Ns_Main (argc=9, argv=0xbffff884, initProc=0x806cbe8
> <ServerInit>) at nsmain.c:315
> #5 0x806cbe2 in main (argc=9, argv=0xbffff884) at main.c:64
> #6 0x400679cb in __libc_start_main (main=0x806cbc0 <main>, argc=9,
> argv=0xbffff884, init=0x805afd0 <_init>, fini=0x80e38dc <_fini>,
> rtld_fini=0x4000ae60 <_dl_fini>, stack_end=0xbffff87c) at
> ../sysdeps/generic/libc-start.c:92
> (gdb)
>
>
>
>
> You'll need to use gdb's 'directory' command to point to the aolserver
> sources, so it can tell you the routine names etc. You can find the
> manual at http://www.gnu.org/manual/gdb-4.17/gdb.html.
>
>
>
> When you fix it, please submit the fix to AOLserver at SourceForge.net.
>
>
> /s.
>
>
>
> -----Original Message-----
> From: AOLserver Discussion [mailto:[EMAIL PROTECTED]] On Behalf
> Of Michael C. Urban
> Sent: Monday, June 25, 2001 7:14 AM
> To: [EMAIL PROTECTED]
> Subject: [AOLSERVER] Segfaults when running on port 80
>
>
> Hello,
>
> I am trying to run AOL Server 3.4 on FreeBSD 5.0. After following the
> suggestions given by another user in this forum, I was able to get it to
> build. However, I know have the following problems:
>
> The first is a persmissions problem having to do with not being able to
> write to the logs unless they are owned by the user "nobody" who I am
> trying to run the server as. This doesn't seem correct that the logs
> should have to be owned by "nobody".
>
> The second is that the server segfaults and dies when I try to run in on
> port 80, but it will run on port 8000. This seems to be a problem
> related to not running it as root, but I am starting it as root using
> the procedure given. Here is the exact command line I am using to start
> the server after having done an "su" to root:
>
> ./nsd8x -f -t ../sample-config.tcl -u nobody -g nobody
>
> I am of course, issuing this command from the /usr/local/aolserver/bin
> directory and I have made the required changes to the sample-config.tcl
> file to have it run on port 80 and such.
>
> Anyone have any ideas on why it seems to be segfaulting on port 80 but
> not on port 8000? Also on why the logs and such have to be owned by
> "nobody" for it to be able to do any logging? It would seem it is not
> starting properly or something, since as soon as it switches to the user
> "nobody" it is loosing it's root privilages?
>
> Thank you for your help,
>
> Michael C. Urban
>
