[PD] i lost my credibility

[Hans-Christoph Steiner]

If you stop crond and atd, then it won't run anything based on the  
schedule.

.hc

On Jul 13, 2011, at 5:56 AM, cyrille henry wrote:

> hello,
>
> thanks all for your answer.
>
> I'm now back home, and (thanks to Murphy's law), the problem can't  
> be reproduced.
>
> I noticed a bad (physical) Fire wire connection on the cable after  
> the performance, but now it is ok.
> maybe my audio buffer was too small and any other computer activity  
> could break the connection between pd and jack (but not between  
> audacity and jack)
>
> so the only valid hypothesis i can find is :
> - too small buffer for jack configuration
> - bad pd implementation of jack
> - automatic script in ubuntu that start in bad timing (friday 19h30)
> - bad priority between pd and ubuntu script
>
> it's just discouraging that thing worked for 60h straight and crash  
> during the 20 min performance.
>
> The only lesson i can find is that "with computer, you can't prove  
> things are working, you can only prove that things don't work".
>
>
>
> did anyone ever experience a slow down due to ubuntu automatic  
> script that should run on the background?
> how to easily disable them? (cron?)
>
> thanks,
> Cyrille
>
> Le 09/07/2011 22:31, Hans-Christoph Steiner a écrit :
>>
>> Well, you have an amazing track record, so I wouldn't sweat too  
>> much. Hopefully the rest of the performances go smoothly.
>>
>> Random freezes are often caused by bad memory, that sounds like the  
>> most likely cause here. It can just affect a single program if its  
>> only a small part of the memory that is bad. running memtest for a  
>> while might find something. If its not bad memory, it could be some  
>> other bad hardware. If its a dusty old computer, it would be worth  
>> while to blow all the dust out, and re-seat the cards and the RAM.
>>
>> .hc
>>
>> On Jul 8, 2011, at 12:57 PM, cyrille henry wrote:
>>
>>> hello,
>>>
>>> i need help to understand a major problem i had today.
>>>
>>> i'm unsing a old computer for a project, running ubuntu linux  
>>> 10.04, with a presonus FP10 fire wire soundcard with jack.
>>> everything was running fine for weeks when we worked on this  
>>> project.
>>> i boot this computer 3 days ago, start pd and everything was  
>>> working wey well for all rehearsal.
>>> (i did not close pd since)
>>>
>>>
>>> the problem i've experience is that pd freeze during the  
>>> performance.
>>>
>>>
>>> (fortunately, it was 10 000 Km away from where i'm living so i  
>>> have no friend on the audience)
>>> This is my 1st unexpected pd freeze (when i'm not on edit mode)  
>>> since i begin using pd, 11 years ago.
>>> i'm running pd vanilla with almost no externals
>>> thanks to Murphy's law, it occur in performance, and not in  
>>> rehearsal.
>>> worst of all : i don't know what is the problem, and can't make  
>>> things work again.
>>>
>>> So, the 1st thing i could imagine is a hardware problem, since the  
>>> software was tested for month.
>>> (This patch work for weeks without closing pd, and this pd  
>>> installation run for 8 month for an installation).
>>>
>>> fact are :
>>> - after rebooting the computer/soundcard etc, jack start and works
>>> - audacity can connect to jack.
>>> - pd crash on start-up if started with jack.
>>> - i do not change anything about pd
>>> - i did not physically touch the computer for the last 10 minutes  
>>> before the freeze (everything is automatized)
>>> - this computer is not connected to internet, i did not do any  
>>> update since it was stable.
>>> - the soundcard works OK on an other computer on osX.
>>>
>>> i'll use another computer for tomorrow performance, and i'll have  
>>> more time to understand the problem when i'll be back home,  
>>> however i would really appreciate to understand as soon as  
>>> possible what could cause a huge problem like what i experience  
>>> today.
>>>
>>> So, with that mail i share my shame with you, but i also really  
>>> apreciate to have some pointer about what to test in order to  
>>> understand the problem.
>>> Why pd can't connect to jack anymore, since jack work and noting  
>>> was change about pd?
>>> and why this occure during a live performance...
>>>
>>>
>>> thanks for your consideration,
>>>
>>> cheers
>>> Cyrille (sad)
>>>
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>>
>>
>>
>> ----------------------------------------------------------------------------
>>
>> I spent 33 years and four months in active military service and  
>> during that period I spent most of my time as a high class muscle  
>> man for Big Business, for Wall Street and the bankers. - General  
>> Smedley Butler
>>
>>
>>
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>
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