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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