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VK7AX > FBBDIG 14.08.08 04:39l 183 Lines 6962 Bytes #999 (0) @ WW
BID : VK7AX-2408XF
Read: GUEST
Subj: xfbb Digest, Vol 41, Issue 1
Path: IZ3LSV<IK2XDE<F5GOV<F4BWT<YO6PLB<CX2SA<VK7AX
Sent: 080814/0242Z @:VK7AX.#ULV.TAS.AUS.OC #:50825 [Ulverstone] FBB7.00g $:VK7A
From: VK7AX@VK7AX.#ULV.TAS.AUS.OC
To : FBBDIG@WW
Today's Topics:
1. anyone using ubuntu. (bob evinger)
2. Re: anyone using ubuntu. (bob evinger)
3. Re: anyone using ubuntu. (Ray Wells)
----------------------------------------------------------------------
Message: 1
Date: Mon, 11 Aug 2008 14:15:21 -0500 (CDT)
From: bob evinger <wd9eka(AT)evinger.com>
Subject: [xfbb] anyone using ubuntu.
To: xfbb(AT)f6fbb.org
Message-ID: <alpine.DEB.1.00.0808111409480.14800(AT)aprs2>
Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
I made the switch from msys to fbb. I have fbb working with ax25 tools.
I have 2 issues that i have seen others mention. I cant turn compression
on and high cpu load.
FBB is actually staying up and running. I am moving traffic on both
internet telnet sessions with other bbs's and on a vhf link. I'd really
like to figure out what to do to resolve the above issues.
Ubuntu 8.04, the kernel was an smp kernel that was installed by default.
but it still was working on my system. However, I created a non-smp
kernel with the 2.6.26.1 sources. Even with the non-smp kernel I still
have the high cpu load and unable to turn compressed forwarding on.
I'm sorry if this has been hashed to death already but apparently I am not
searching with the right keywords to resolve this and I really want to get
past the final two hiccups.
thanks
bob
------------------------------
Message: 2
Date: Tue, 12 Aug 2008 12:56:10 -0500 (CDT)
From: bob evinger <wd9eka(AT)evinger.com>
Subject: Re: [xfbb] anyone using ubuntu.
Cc: xfbb(AT)f6fbb.org
Message-ID: <alpine.DEB.1.00.0808121249580.18211(AT)aprs2>
Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
I compiled the fbb source and did have to enable/disable the CFLAG to
prevent stack smashing from taking down xfbbd. I'll make an attempt to go
to an older kernel. Will try to compile it on mylaptop and move it over,
the server is a 1ghz processor but with fbb up and eating the cpu it takes
a day or two to compile a kernel, ouch.
I assumed the crash with compression on was related to the high cpu load.
I thought I had seen some googld comments elsewhere. When I gdb'd the
process nit was always bailing somewhere under the lzhuf calls. Depneding
on whether I was trying to send a message, or receive a message it is
basically the same point where it is either compressing the text or
uncompressing.
On Tue, 12 Aug 2008, p.m.brown(AT)comcast.net wrote:
> > Bob,
> >
> > The high cpu load is related to kernel version, I believe it's
called stack smashing. I'm running on Ubuntu version 7.04,
kernel 2.6.20, I believe, and have a very low cpu load. I haven't
heard of any fixes except to run a slightly older kernel.
As for compressed forwarding, I haven't seen that issue.
Where did you get your xfbb from? Did you install from a package
or compile the sources?
> >
> > The real expert on this subject is Ray, vk2tv.
> >
> > 73, Paul - n6rme
> >
> > -------------- Original message --------------
> > From: bob evinger <wd9eka(AT)evinger.com>
> >
>> I made the switch from msys to fbb. I have fbb working with ax25 tools.
>> I have 2 issues that i have seen others mention. I cant turn compression
>> on and high cpu load.
>>
>> FBB is actually staying up and running. I am moving traffic on both
>> internet telnet sessions with other bbs's and on a vhf link. I'd really
>> like to figure out what to do to resolve the above issues.
>>
>> Ubuntu 8.04, the kernel was an smp kernel that was installed by default.
>> but it still was working on my system. However, I created a non-smp
>> kernel with the 2.6.26.1 sources. Even with the non-smp kernel I still
>> have the high cpu load and unable to turn compressed forwarding on.
>>
>> I'm sorry if this has been hashed to death already but apparently I am not
>> searching with the right keywords to resolve this and I really want to get
>> past the final two hiccups.
>>
>> thanks
>> bob
------------------------------
Message: 3
Date: Wed, 13 Aug 2008 15:23:29 +1000
From: Ray Wells <vk2tv(AT)exemail.com.au>
Subject: Re: [xfbb] anyone using ubuntu.
To: List for the LINUX version of FBB <xfbb(AT)f6fbb.org>
Message-ID: <48A26FD1.9060002(AT)exemail.com.au>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi Bob,
High cpu useage is a function of (K)Ubuntu 7.10 and 8.04 and it's not
kernel related, it seems to be (K)Ubuntu related. There are, however
kernel issues with fbb and later kernels. Bernard, F6BVP, is currently
looking into this problem.
If you have no particular reason to stick with Ubuntu my I suspect you
do a netinsatll of Debian 4.0 for which, if you select a desktop
environment with task selection, will install Gnome, leaving you with a
very similar installation to Ubuntu but without the fbb cpu problem.
This distro ships with 2.6.18.6 but unfortunately SMP is enabled. You
are obviously comfortable with compiling a kernel so I'd recommend
sticking with 2.6.18.6 compiled without SMP. If you take that road make
sure the kernel is compiled with DAMA Slave enabled in the ax25
selection. If you don't you will likely lose your /proc/sys/net/ax25
directories when you kissattach, rendering the ports unuseable.
You already know about -fno-stack-protector so, with my suggestion you
should get a working system.
Oh, Bernard suggests fbb 7.04o. 704.p has connection issues when working
a 7.04p station.
Ray vk2tv
bob evinger wrote:
> >I made the switch from msys to fbb. I have fbb working with ax25 tools.
> >I have 2 issues that i have seen others mention. I cant turn compression
> >on and high cpu load.
> >
> >FBB is actually staying up and running. I am moving traffic on both
> >internet telnet sessions with other bbs's and on a vhf link. I'd really
> >like to figure out what to do to resolve the above issues.
> >
> >Ubuntu 8.04, the kernel was an smp kernel that was installed by default.
> >but it still was working on my system. However, I created a non-smp
> >kernel with the 2.6.26.1 sources. Even with the non-smp kernel I still
> >have the high cpu load and unable to turn compressed forwarding on.
> >
> >I'm sorry if this has been hashed to death already but apparently I am not
> >searching with the right keywords to resolve this and I really want to get
> >past the final two hiccups.
> >
> >thanks
> >bob
------------------------------
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http://mailman.f6fbb.org/mailman/listinfo/xfbb
End of xfbb Digest, Vol 41, Issue 1
***********************************
****************************************************************
ABOVE IS A CROSS POST TO THE PACKET RADIO NETWORK IN AN EFFORT
TO PROMOTE FURTHER INTEREST IN PACKET RADIO
Courtesy Tony VK7AX VK7AX(AT)VK7AX.#ULV.TAS.AUS.OC
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