Re: [Xenomai-help] Kernel OOps large appl.

[Jan Kiszka <jan.kiszka@domain.hid>]

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Daniel Schnell wrote:
> Philippe Gerum wrote:
>  
>  
>> IOW, something seems out of sync in your configuration. Does the
>> testsuite work on your board, and specifically the "cyclic" test? 
> 
> 
> The cyclic test does the following output:
> 
> ./cyclictest -c 1 -d 500 -i 500 -l 10000 -n
> 0.06 0.03 0.01 1/21 354
> 
> T: 0 (  354) P: 0 I:     500 C:   10000 Min:       7 Act:       7 Avg:
> 10 Max:     201
> (needs a relatively short time)
> 
> ./cyclictest -c 0 -d 500 -i 500 -l 10000 -n
> 0.00 0.01 0.00 1/21 357
> 
> T: 0 (  357) P: 0 I:     500 C:   10000 Min:       6 Act:       6 Avg:
> 12 Max:     403
> (needs a relatively short time)
> 
> ./cyclictest -c 1 -d 500 -i 500 -l 10000 -n -r
> 0.00 0.00 0.00 1/21 367
> 
> T: 0 (  367) P: 0 I:     500 C:   10000 Min:      10 Act:      11 Avg:
> 19 Max:     491
> (needs a relatively short time)
> 
> ./cyclictest -c 1 -d 500 -i 500 -l 10000 -s
> T: 0 (  360) P: 0 I:     500 C:   10000 Min:   -6174 Act:94983888
> Avg:47488852 Max:94983888
> (needs much longer)
> 
> ./cyclictest -c 1 -d 500 -i 500 -l 10000
> 0.16 0.03 0.01 1/22 379
> 
> T: 0 (  379) P: 0 I:     500 C:   10000 Min:-5964339 Act:-5964339
> Avg:-3481100 Max: -997872
> 
> (returns immediately without doing anything)
> 
> ./cyclictest
> 
> (locks up system immediately)
> 
> 
> 
> Probably not good....

False positive of the test: only the -n mode is supported over Xenomai,
which is unfortunately not default. The default mode seems to cause a
busy loop in cyclictest, effectively locking up the box (the Xenomai
watchdog would have detected this).

Anyway, the test needs fixing to avoid misunderstandings.

Jan


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