I have also been experiencing this most frustrating error message reasonably 
frequently. I have tried connecting my external hard drive via USB instead of 
thunderbolt but to no avail. I tried a different hard drive entirely, same 
result. If I put the buffering settings up it then tells me to put them back 
down again and vice versa. I have disabled spotlight, and even Wifi etc and the 
problem still prevails. The issue is that it's so inconsistent. I recorded a 
two hour drum session where it didn't have any problems at all but the next 
time I set my equipment up, in the exact same way, the buffering message was 
coming up literally every two seconds despite many resets 

I am using similar set up to Nick, same Macbook pro and external hard drive 
theory but a 002 instead of a 003. Potential fixes? When the recent mavericks 
security upgrade was released, that seemed to smooth it out at first but over 
time it kept happening again. I borrowed a friend's 0021 at this point to check 
but unfortunately same result. Everything pointed to the Mac at this point. 

One morning just two weeks ago I was trying to mix at college and it became 
impossible to do so with this error message appearing so frequently. I shut the 
002 down to mix in the box, knowing the process would take so much longer but 
my hands were tied here. Obviously this automatically changed the playback 
engine default to pro tools aggregate. No buffering at all for the next two 
hours or so. I thought at this point I'll try the Digi again and shut PT down, 
turned my session back on and changed the playback engine back to avid '%\002. 
I'm happy to say it worked fine then, with only maybe one buffering error every 
say four hours on average which still isn't ideal but can be worked around. 

As well as changing the playback engine half solution, the other factor I have 
noticed is finder. As a side issue, is anyone else having problems with finder 
when shutting down? The security upgrade seemed to fix this at first but now 
it's happening again and so I think are related. I've tried closing all finder 
windows whilst PT is running which again works sometimes but not others. Its 
that inconsistency that makes this problem so hard to pin down. 

Anyway, I had to do a location recording yesterday and I recorded a choir 
performing four songs with no problems, using a total of eight mic's using a 
spirit folio sx's first four channels as pre amps and running the line out from 
each channel to line in five to eight on the Digi. No buffering issues. Then I 
tried to record one guitarist vocalist with two near mic's and a room stereo 
pair just using the four digi pre amps and I got the buffering every ten 
seconds problem again. The size of the session seems to be irrelevant is what 
I'm saying. 

Apologies this post has got larger than I hoped but I wanted to give as much 
detail as possible. I'm preparing to go into college this morning and I know I 
have mixing to do and only three weeks left on my course yet I can't predict 
what will happen with my Mac and Digi when I set up. So if anyone has any ideas 
on a permanent solution to this problem I would be genuinely eternally 
grateful! 

Thanks for reading and any subsequent help you may offer. 

Alan, 
Oban, Scotland 


Sent from my iPhone

> On 20 May 2014, at 05:31, TheOreoMonster <[email protected]> wrote:
> 
> try using a firewire or USB drive instead and see if the issue persist.
>> On May 19, 2014, at 11:53 PM, Nick Gawronski <[email protected]> wrote:
>> 
>> Hi, I have had this issue for a few days now in both pro tools 10 and pro
>> tools 11.  I have been recording and suddenly with no other programs open
>> and spotlight disabled completely pro tools comes up with the dialog that
>> says the operating system held off interrupts for to long and yes I have
>> played around with the buffering and other settings in both playback
>> dialogs with both versions and when recording in pro tools 11 my mac book
>> pro model late 2011 is running very hot.  Also upon every exit of pro
>> tools 11 it says after saving the session that pro tools has crashed and I
>> keep explaining what is going on with my system.  I have a Digi 003 and am
>> usually just recording one track when this happens.  What could be causing
>> these issues and how do I stop them as I always record to my external
>> drive connected with the esata express card which before was working just
>> fine and no I have not done anything major with my system.  Nick Gawronski
>> 
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