On Mon, 11 Jun 2007, Steve Hanselman wrote:
This is the io wait figure from vmstat.
If I run a vmstat 2 whilst I'm on a call I can see that the "wa" figure
gets very high when the missing audio problem occurs.
I once looked after a Dell 2850 that exhibited some odd behaviour that I
never got to the bottom of. It would seem to lock-up or just crawl for 2-3
seconds every now & then. Nothing logged, noting on the console. It had 6
SCSI drives fitted. I rebuilt the server twice, rebuilt the s/w RAID
arrays twice, even put all 6 drives in another box (which appeared towork
OK), but never got to the bottom of it. Each disk would benchmark really
fast individually, Ethernet performance was good, but overall, when
everything was used together, it just didn't feel right. (compared to
other Dells and other servers, biger & smaller that I've built and used
over the years). I'd see processes hung in a "D" state (waiting for IO to
complete) for what seemed like an overly long time, (waiting on disk), but
...
I suspected a BIOS pproblem, but never had a chance to get to the bottom
of it. (It was a live server doing *everything* for a small company - DNS,
NIS, NFS, Intranet/WiKi, Samba, etc, etc, etc,... so taking it offline for
tests was problematic)
So I wonder if looking at the BIOS and seeing if there are any Dell
upgrades avalable for it might help?
Gordon
>
Steve
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matthew
Fredrickson
Sent: 08 June 2007 19:38
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Bridged PRI calls - processor involvement?
iowait time? I'm not familiar with that. Where are you seeing that?
Also, is it a reproducible problem?
---
Matthew Fredrickson
Software Engineer
Digium, Inc.
On Jun 8, 2007, at 11:23 AM, Steve Hanselman wrote:
It probably did but we run in updates every week and nobody can state
exactly when the problem started only "a few weeks ago" - not very
helpful.
I can see that when I hear the issue the iowait time is high on the
processor.
Steve
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matthew
Fredrickson
Sent: 08 June 2007 15:43
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Bridged PRI calls - processor
involvement?
Did it accompany an update you made? If you can find out what version
the problem started occurring, that would help in fixing the problem.
Matthew Fredrickson
Software/Hardware Engineer
Digium, Inc.
On Jun 8, 2007, at 2:59 AM, Steve Hanselman wrote:
The setup.
Asterisk is on a 3G Zeon Dell 2850 running Fedora Core 5/6 (all yum
updates applied), the TE410 lives on it's own interrupt.
Asterisk sits between our telco and a PRI enabled PBX.
These are the relevant versions installed:
Linux: 2.6.20-1.2316.fc5smp
Zaptel: 1:1.4.2.1-34.fc5
Asterisk: 1:1.4.0-34.fc5.at
Libpri: 1:1.4.0-16.fc5.at
Wildcard details:
Found TE4XXP at base address fe3ffc00, remapped to f88bec00
TE4XXP version c01a016a, burst OFF, slip debug: OFF
Octasic optimized!
FALC version: 00000005, Board ID: 00
Reg 0: 0x377bb400
Reg 1: 0x377bb000
Reg 2: 0xffffffff
Reg 3: 0x00000000
Reg 4: 0x00000001
Reg 5: 0x00000000
Reg 6: 0xc01a016a
Reg 7: 0x00001f00
Reg 8: 0x00000000
Reg 9: 0x00ff0000
Reg 10: 0x0000004a
TTE4XXP: Launching card: 0
TE4XXP: Setting up global serial parameters
Found a Wildcard: Wildcard TE410P (3rd Gen)
TE4XXP: Span 1 configured for CCS/HDB3/CRC4
TE4XXP: Span 2 configured for CCS/HDB3/CRC4
The problem:
At random points during calls we lose 1-3 seconds of speech (both
ways
both callee and caller), this can be replicated (or at least a very
good
approximation!) by generating a high level of interrupt/cpu activity
(for instance copying data from a USB caddy as we tried the other day
in
an attempt to reproduce this more reliably).
The calls are bridged PRI:PRI calls, no VOIP involvement.
This was not a problem until approx 3-4 weeks ago, but I can't tie it
down to an exact date.
Steve
Interrupt sharing is not a problem anymore with those cards. What
version of zaptel did you try installing? Can you explain more
about
your problems? Also, your configuration and setup would help out as
well.
---
Matthew Fredrickson
Digium, Inc.
The information contained in this email is intended for the personal
and confidential use
of the addressee only. It may also be privileged information. If you
are not the intended
recipient then you are hereby notified that you have received this
document in error and
that any review, distribution or copying of this document is strictly
prohibited. If you have
received this communication in error, please notify Brendata
immediately on:
+44 (0)1268 466100, or email '[EMAIL PROTECTED]'
Brendata (UK) Ltd
Nevendon Hall, Nevendon Road, Basildon, Essex. SS13 1BX UK
Registered Office as above. Registered in England No. 2764339
See our current vacancies at www.brendata.co.uk
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
The information contained in this email is intended for the personal
and confidential use
of the addressee only. It may also be privileged information. If you
are not the intended
recipient then you are hereby notified that you have received this
document in error and
that any review, distribution or copying of this document is strictly
prohibited. If you have
received this communication in error, please notify Brendata
immediately on:
+44 (0)1268 466100, or email '[EMAIL PROTECTED]'
Brendata (UK) Ltd
Nevendon Hall, Nevendon Road, Basildon, Essex. SS13 1BX UK
Registered Office as above. Registered in England No. 2764339
See our current vacancies at www.brendata.co.uk
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
The information contained in this email is intended for the personal and
confidential use
of the addressee only. It may also be privileged information. If you are not
the intended
recipient then you are hereby notified that you have received this document in
error and
that any review, distribution or copying of this document is strictly
prohibited. If you have
received this communication in error, please notify Brendata immediately on:
+44 (0)1268 466100, or email '[EMAIL PROTECTED]'
Brendata (UK) Ltd
Nevendon Hall, Nevendon Road, Basildon, Essex. SS13 1BX UK
Registered Office as above. Registered in England No. 2764339
See our current vacancies at www.brendata.co.uk
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
asterisk-users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
