asterisk users - Jan 2014 - patlooptest output - errors

Hi there,

Running patlooptest following instructions on Digium KB, using dahdi 2.5.1
with a TE205P. I'm getting this kind of output (not full output). Note,
I'm
using a standard cat5 ethernet cable (30cm), with a Digium T10i crossover.


Error 4985 (loop 19898, offset 425, error 214): Unexpected result, Read:
0xff, Expected 0x00.
Offset 422  { ff ff ff ff ff ff ff }
Error 4986 (loop 19898, offset 426, error 215): Unexpected result, Read:
0xff, Expected 0x00.
Offset 423  { ff ff ff ff ff ff ff }
Error 4987 (loop 19898, offset 427, error 216): Unexpected result, Read:
0xff, Expected 0x00.
Offset 424  { ff ff ff ff ff ff ff }
Error 4988 (loop 19898, offset 428, error 217): Unexpected result, Read:
0xff, Expected 0x00.
Offset 425  { ff ff ff ff ff ff ff }
Error 4989 (loop 19898, offset 429, error 218): Unexpected result, Read:
0xff, Expected 0x00.
Offset 426  { ff ff ff ff ff ff 2e }
Error 4990 (loop 19898, offset 430, error 219): Unexpected result, Read:
0xff, Expected 0x00.
Offset 427  { ff ff ff ff ff 2e 2f }
Error 4991 (loop 19898, offset 431, error 220): Unexpected result, Read:
0xff, Expected 0x00.
Offset 428  { ff ff ff ff 2e 2f 30 }
Error 4992 (loop 19898, offset 432, error 221): Unexpected result, Read:
0x2e, Expected 0x00.
Offset 429  { ff ff ff 2e 2f 30 31 }
Event: 29
Event: 30
Error 4993 (loop 24990, offset 0, error 1): Unexpected result, Read: 0x7e,
Expected 0x7a.
Offset 0  { 7e 7f 80 81 }
Error 4994 (loop 24990, offset 428, error 2): Unexpected result, Read:
0xff, Expected 0x2a.
Offset 425  { 27 28 29 ff ff ff ff }
Error 4995 (loop 24990, offset 429, error 3): Unexpected result, Read:
0xff, Expected 0x00.
Offset 426  { 28 29 ff ff ff ff 2a }
Error 4996 (loop 24990, offset 430, error 4): Unexpected result, Read:
0xff, Expected 0x00.
Offset 427  { 29 ff ff ff ff 2a 2b }

Cause for concern?

I'm testing a card which has been used before without issues. I'm just
playing with patlooptest for the first time, and wasn't expecting to see
this on a supposedly good card.

appreciate any input, thx.

rgds.
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On Tue, Jan 14, 2014 at 11:58 AM, Rodrigo Borges Pereira
<rodrigoborgespereira at gmail.com> wrote:
> Cause for concern?
For patlooptest ensure that:
- Your ethernet cable is straight through and not crossover
- The span you're testing is set to "provide" timing, not recover
- In dahdi_tools you can "make utils" and just use dahdi_maint to put
the card into loopback without messing with cables.


-- 
Russ Meyerriecks
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
direct: +1 256-428-6025
Check us out at: www.digium.com & www.asterisk.org

On Tue, Jan 14, 2014 at 05:58:57PM +0000, Rodrigo Borges Pereira
wrote:
> 
> Running patlooptest following instructions on Digium KB, using dahdi 2.5.1
> with a TE205P. I'm getting this kind of output (not full output). Note,
I'm
> using a standard cat5 ethernet cable (30cm), with a Digium T10i crossover.
[snip]
> Event: 29
> Event: 30
[snip]
> Cause for concern?
> 
> I'm testing a card which has been used before without issues. I'm
just
> playing with patlooptest for the first time, and wasn't expecting to
see
> this on a supposedly good card.
> 
> appreciate any input, thx.
Those events (29 and 30) indicate that patlooptest isn't able to
keep up with the hardware.

Do you get the same thing when you run patloop test with elevated
permissions?

  $ chrt -f 99 patlooptest <channel> <timeout>

Cheers,
Shaun

-- 
Shaun Ruffell
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at: www.digium.com & www.asterisk.org