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Date:      Wed, 4 Sep 2013 11:52:57 -0400
From:      alexus <alexus@gmail.com>
To:        =?UTF-8?Q?Fernando_Apestegu=C3=ADa?= <fernando.apesteguia@gmail.com>
Cc:        User Questions <freebsd-questions@freebsd.org>, James Gosnell <jamesgosnell@gmail.com>
Subject:   Re: f9 snmpd[4517]: stack overflow detected; terminated
Message-ID:  <CAJxePNLUGDi_K+9FczAooK5y-sYBB-gkwSkRtCv33p-m2BjUew@mail.gmail.com>
In-Reply-To: <CAGwOe2apznPDZoAbFRb6VfoVyzExw26i1AowZLVbDZFQNrCUew@mail.gmail.com>
References:  <CAJxePN+TKu7VS2p2odo7iMce61hA5GgLC5TBp4O=Th9pR428AQ@mail.gmail.com> <CAEhBLvj25v+xWzNLCNPmmKd3V92v+Wm+ySJ-gL3VoT+DCwwoPA@mail.gmail.com> <CAJxePNJXr2Ln=mv=DHN6RWCGpL0w_QGjneeuB-SS6otE56ts2g@mail.gmail.com> <CAGwOe2b9LDtScpm7U0w3cfGR+80Exf-SNX+qFKu3CzsHWUYfiA@mail.gmail.com> <CAJxePNKfwN1_1Q1a_F_XL=NSuOoMHEktn+K-qxiP-42DHBaJjw@mail.gmail.com> <CAGwOe2bydwQZEObudtZwrOQ3vO=EYHjhw4VaD3G-bDxC_72wiQ@mail.gmail.com> <CAJxePN+HKHYeQ+kj-4tvXui-ZrS1SEOe9A0MTV72818hL7ejTQ@mail.gmail.com> <CAGwOe2a83py3Sx9j_6wB4dkz0882NB+ppZfN5VNwk2_0pfn=5g@mail.gmail.com> <CAJxePNLhgYCLaCR3mNEaTr2+wmrs=cW6FyUokwxSXh_G+T5z3g@mail.gmail.com> <CAGwOe2agZGai4ftCg1Ywsw9ceG+ryd4074A3R7MG0sMdk7qz0g@mail.gmail.com> <CAJxePNKGBfJaprEYa=9Qy=hAohXJS9ZfG_0YvMoUk5+3W29qkA@mail.gmail.com> <CAGwOe2apznPDZoAbFRb6VfoVyzExw26i1AowZLVbDZFQNrCUew@mail.gmail.com>

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so mean while, I'm thinking adding something like this to cron as @daily,
but I'm getting error(

f9# service bsnmpd status ; if [ $? !=3D 0 ] ; then service bsnmpd start ; =
fi
bsnmpd is running as pid 4269.
if: Expression Syntax.
then: Command not found.
fi: Command not found.
f9#



On Tue, Sep 3, 2013 at 4:41 PM, Fernando Apestegu=C3=ADa <
fernando.apesteguia@gmail.com> wrote:

>
> El 03/09/2013 21:47, "alexus" <alexus@gmail.com> escribi=C3=B3:
>
> >
> > I use bsnmpd w/ mrtg (have been for very long time and everything was
> ok, till recently), mrtg just monitors interface(s) as it always did,
> nothing special..
> >
> > any ideas how to solve it though?
>
> I'm really sorry. I don't use SNMP.
> I would try to configure snmpd to be as verbose as possible and see if it
> can log something interesting before it crashes.
>
> Maybe someone who uses it can step in and help you to debug the problem.
>
> >
> >
> > On Tue, Sep 3, 2013 at 3:40 PM, Fernando Apestegu=C3=ADa <
> fernando.apesteguia@gmail.com> wrote:
> >>
> >>
> >>
> >>
> >> On Tue, Sep 3, 2013 at 9:22 PM, alexus <alexus@gmail.com> wrote:
> >>>
> >>> #13156 0x0000000000000000 in ?? ()
> >>> #13157 0x0000000000000001 in ?? ()
> >>> #13158 0x00007fffffffae80 in ?? ()
> >>> #13159 0x000000080063c400 in ?? ()
> >>> #13160 0x00007fffffffae90 in ?? ()
> >>> #13161 0x00007fffffffae30 in ?? ()
> >>> #13162 0x000000080063c000 in ?? ()
> >>> #13163 0x0000000800624244 in dlclose () from /libexec/ld-elf.so.1
> >>> Previous frame inner to this frame (corrupt stack?)
> >>> (gdb)
> >>>
> >>> http://pastebin.com/qhQGC5A4
> >>
> >>
> >> It was long indeed :)
> >>
> >> It seems to me you are receiving a very long query from the network an=
d
> somehow, the snmp_input_finish() function is blowing up.
> >>
> >>
> >>
> >>>
> >>>
> >>>
> >>>
> >>> On Tue, Sep 3, 2013 at 3:18 PM, Fernando Apestegu=C3=ADa <
> fernando.apesteguia@gmail.com> wrote:
> >>>>
> >>>>
> >>>> El 03/09/2013 21:11, "alexus" <alexus@gmail.com> escribi=C3=B3:
> >>>>
> >>>>
> >>>> >
> >>>> > it's _REALLY_ long, but if you want I can upload it somewhere...
> >>>> >
> >>>> > last couple of lines is following:
> >>>> >
> >>>> > #13163 0x0000000800624244 in dlclose () from /libexec/ld-elf.so.1
> >>>> > Previous frame inner to this frame (corrupt stack?)
> >>>>
> >>>> Not much there.
> >>>>
> >>>> Paste the last 10 or 20 lines please. Let's see if that throws some
> light.
> >>>>
> >>>> >
> >>>> >
> >>>> >
> >>>> > On Tue, Sep 3, 2013 at 3:08 PM, Fernando Apestegu=C3=ADa <
> fernando.apesteguia@gmail.com> wrote:
> >>>> >>
> >>>> >>
> >>>> >>
> >>>> >>
> >>>> >> On Tue, Sep 3, 2013 at 9:04 PM, alexus <alexus@gmail.com> wrote:
> >>>> >>>
> >>>> >>> can you guide me through to get "whole backtrace" please?
> >>>> >>
> >>>> >>
> >>>> >> After opening the core like you did, type "bt" and press enter.
> >>>> >>
> >>>> >>>
> >>>> >>>
> >>>> >>>
> >>>> >>> On Tue, Aug 27, 2013 at 5:19 PM, Fernando Apestegu=C3=ADa <
> fernando.apesteguia@gmail.com> wrote:
> >>>> >>>>
> >>>> >>>>
> >>>> >>>> El 27/08/2013 05:03, "alexus" <alexus@gmail.com> escribi=C3=B3:
> >>>> >>>>
> >>>> >>>>
> >>>> >>>> >
> >>>> >>>> > f9# gdb `which bsnmpd` /bsnmpd.core
> >>>> >>>> > GNU gdb 6.1.1 [FreeBSD]
> >>>> >>>> > Copyright 2004 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 "amd64-marcel-freebsd"...(no
> debugging symbols
> >>>> >>>> > found)...
> >>>> >>>> > Core was generated by `bsnmpd'.
> >>>> >>>> > Program terminated with signal 6, Aborted.
> >>>> >>>> > Reading symbols from /lib/libbegemot.so.4...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /lib/libbegemot.so.4
> >>>> >>>> > Reading symbols from /usr/lib/libbsnmp.so.6...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /usr/lib/libbsnmp.so.6
> >>>> >>>> > Reading symbols from /usr/lib/libwrap.so.6...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /usr/lib/libwrap.so.6
> >>>> >>>> > Reading symbols from /lib/libc.so.7...(no debugging symbols
> found)...done.
> >>>> >>>> > Loaded symbols for /lib/libc.so.7
> >>>> >>>> > Reading symbols from /lib/libcrypto.so.6...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /lib/libcrypto.so.6
> >>>> >>>> > Reading symbols from /usr/lib/snmp_mibII.so...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /usr/lib/snmp_mibII.so
> >>>> >>>> > Reading symbols from /libexec/ld-elf.so.1...(no debugging
> symbols
> >>>> >>>> > found)...done.
> >>>> >>>> > Loaded symbols for /libexec/ld-elf.so.1
> >>>> >>>> > #0  0x0000000800f54d6c in kill () from /lib/libc.so.7
> >>>> >>>> > (gdb)
> >>>> >>>>
> >>>> >>>> Is that the whole backtrace?
> >>>> >>>>
> >>>> >>>> >
> >>>> >>>> >
> >>>> >>>> >
> >>>> >>>> > On Mon, Aug 26, 2013 at 10:42 PM, James Gosnell <
> jamesgosnell@gmail.com>wrote:
> >>>> >>>> >
> >>>> >>>> > > What's the core dump and your config file look like?
> >>>> >>>> > >
> >>>> >>>> > >
> >>>> >>>> > > On Mon, Aug 26, 2013 at 9:28 PM, alexus <alexus@gmail.com>
> wrote:
> >>>> >>>> > >
> >>>> >>>> > > > My bsnmpd(1) keep crashing(
> >>>> >>>> > > >
> >>>> >>>> > > > f9# uname -a
> >>>> >>>> > > > FreeBSD f9.alexus.org 9.1-RELEASE-p6 FreeBSD
> 9.1-RELEASE-p6 #0: Wed Aug
> >>>> >>>> > > 21
> >>>> >>>> > > > 20:40:52 UTC 2013
> >>>> >>>> > > > root@amd64-builder.daemonology.net:
> /usr/obj/usr/src/sys/GENERIC
> >>>> >>>> > > >  amd64
> >>>> >>>> > > > f9# bzip2 -cd all.log.1.bz2 | grep snmpd
> >>>> >>>> > > > Aug 24 20:59:55 f9 snmpd[4517]: stack overflow detected;
> terminated
> >>>> >>>> > > > Aug 24 20:59:55 f9 kernel: Aug 24 20:59:55 f9 snmpd[4517]=
:
> stack overflow
> >>>> >>>> > > > detected; terminated
> >>>> >>>> > > > Aug 24 20:59:56 f9 kernel: pid 4517 (bsnmpd), uid 0:
> exited on signal 6
> >>>> >>>> > > > (core dumped)
> >>>> >>>> > > > f9# head -1 /etc/snmpd.config
> >>>> >>>> > > > # $FreeBSD: release/9.1.0/etc/snmpd.config 216595
> 2010-12-20 17:28:15Z
> >>>> >>>> > > > syrinx $
> >>>> >>>> > > > f9#
> >>>> >>>> > > >
> >>>> >>>> > > > What can I do to resolve it?
> >>>> >>>> > > >
> >>>> >>>> > > > --
> >>>> >>>> > > > http://alexus.org/
> >>>> >>>> > > > _______________________________________________
> >>>> >>>> > > > freebsd-questions@freebsd.org mailing list
> >>>> >>>> > > >
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >>>> >>>> > > > To unsubscribe, send any mail to "
> >>>> >>>> > > > freebsd-questions-unsubscribe@freebsd.org"
> >>>> >>>> > > >
> >>>> >>>> > >
> >>>> >>>> > >
> >>>> >>>> > >
> >>>> >>>> > > --
> >>>> >>>> > > James Gosnell, ACP
> >>>> >>>> > > _______________________________________________
> >>>> >>>> > > freebsd-questions@freebsd.org mailing list
> >>>> >>>> > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >>>> >>>> > > To unsubscribe, send any mail to "
> >>>> >>>> > > freebsd-questions-unsubscribe@freebsd.org"
> >>>> >>>> > >
> >>>> >>>> >
> >>>> >>>> >
> >>>> >>>> >
> >>>> >>>> > --
> >>>> >>>> > http://alexus.org/
> >>>> >>>> > _______________________________________________
> >>>> >>>> > freebsd-questions@freebsd.org mailing list
> >>>> >>>> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >>>> >>>> > To unsubscribe, send any mail to "
> freebsd-questions-unsubscribe@freebsd.org"
> >>>> >>>
> >>>> >>>
> >>>> >>>
> >>>> >>>
> >>>> >>> --
> >>>> >>> http://alexus.org/
> >>>> >>
> >>>> >>
> >>>> >
> >>>> >
> >>>> >
> >>>> > --
> >>>> > http://alexus.org/
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> http://alexus.org/
> >>
> >>
> >
> >
> >
> > --
> > http://alexus.org/
>



--=20
http://alexus.org/



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