RE: Cfservd coredumps

[Mark Burgess]

Don't do it then! :) Run with -F under gdb

On Tue, 2005-11-22 at 12:35 -0800, Martin, Jason H wrote:
> Along the 'run under gdb' lines, have you noticed that cfservd
> threads/processes do not exit under gdb? I ran it under gdb and ended up
> with several thousand defunct cfservd processes. The defunct processes
> do not show up in the absence of gdb.
> 
> -Jason Martin
> 
> > -----Original Message-----
> > From: Mark Burgess [mailto:Mark.Burgess@iu.hio.no] 
> > Sent: Tuesday, November 22, 2005 12:31 PM
> > To: Martin, Jason H
> > Cc: help-cfengine@gnu.org
> > Subject: Re: Cfservd coredumps
> > 
> > 
> > 
> > Try
> > 
> > http://www.cfengine.org/confdir/segfault.html
> > 
> > 
> > On Tue, 2005-11-22 at 11:29 -0800, Martin, Jason H wrote:
> > > Hello, I am experiencing frequent cfservd coredumps (about every 30
> > > minutes) with 2.1.14 and 2.1.17. This on RHEL ES2.1. I've 
> > pasted the 
> > > backtrace and logfile messages below.
> > > 
> > > Any suggestions on solving the problem?
> > > 
> > > Linux XXX 2.4.9-e.30smp #1 SMP Fri Nov 28 07:18:53 EST 2003 i686 
> > > unknown glibc-2.2.4-32.8
> > > 
> > > # gdb /usr/local/src/cfengine-2.1.17/src/cfservd 
> > ./core.13063 GNU gdb 
> > > Red Hat Linux (5.2-2) Copyright 2002 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 "i386-redhat-linux"...
> > > Core was generated by 
> > `/usr/local/src/cfengine-2.1.17/src/cfservd -F -d
> > > 2'.
> > > Program terminated with signal 11, Segmentation fault.
> > > Reading symbols from 
> > /usr/local/BerkeleyDB.4.4/lib/libdb-4.4.so...done.
> > > Loaded symbols for /usr/local/BerkeleyDB.4.4/lib/libdb-4.4.so
> > > Reading symbols from /lib/libnss_nis.so.2...done.
> > > Loaded symbols for /lib/libnss_nis.so.2
> > > Reading symbols from /lib/i686/libpthread.so.0...done.
> > > Loaded symbols for /lib/i686/libpthread.so.0
> > > Reading symbols from /lib/i686/libm.so.6...done.
> > > Loaded symbols for /lib/i686/libm.so.6
> > > Reading symbols from /lib/i686/libc.so.6...done.
> > > Loaded symbols for /lib/i686/libc.so.6
> > > Reading symbols from /lib/libnsl.so.1...done.
> > > Loaded symbols for /lib/libnsl.so.1
> > > Reading symbols from /lib/libnss_files.so.2...done.
> > > Loaded symbols for /lib/libnss_files.so.2
> > > Reading symbols from /lib/ld-linux.so.2...done.
> > > Loaded symbols for /lib/ld-linux.so.2
> > > Reading symbols from /lib/libnss_nisplus.so.2...done.
> > > Loaded symbols for /lib/libnss_nisplus.so.2
> > > Reading symbols from /lib/libnss_dns.so.2...done.
> > > Loaded symbols for /lib/libnss_dns.so.2
> > > Reading symbols from /lib/libresolv.so.2...done.
> > > Loaded symbols for /lib/libresolv.so.2
> > > #0  0x401daea8 in memmove (dest=0x2e0a4008, src=0x2e084201,
> > > len=969818625) at ../sysdeps/generic/memmove.c:105
> > > 105     ../sysdeps/generic/memmove.c: No such file or directory.
> > >         in ../sysdeps/generic/memmove.c
> > > 
> > > RecvSocketStream(8)
> > >     (Concatenated 8 from stream)
> > > Transaction Receive [t 16][]
> > > RecvSocketStream(16)
> > >     (Concatenated 16 from stream)
> > > Got Blowfish size 16
> > > BinaryBuffer(16)[40b6350000100020000] = 16
> > > cfservd: Host XXXXX granted access to /SOMEFILE
> > > Clocks were off by 0
> > > StatFile(/SOMEFILE)
> > > cfservd: Host YYYY granted access to /OTHERFILE
> > > Clocks were off by 0
> > > StatFile(/OTHERFILE)
> > > cfservd:
> > > 
> > > The debug output cuts off, I suspect that unflushed buffers are the 
> > > problem. It would be nice if the debug output performed a fflush() 
> > > after each print to avoid losing data.
> > > 
> > > Thank you,
> > > -Jason Martin
> > > 
> > > 
> > > _______________________________________________
> > > Help-cfengine mailing list
> > > Help-cfengine@gnu.org 
> > > http://lists.gnu.org/mailman/listinfo/help-cfengine
> > 
> >