[Pythonmac-SIG] Finder Crash, after moving files....

[Benjamin Schollnick]

On Jul 4, 2004, at 4:00 PM, Jack Jansen wrote:

>
> On 3 Jul 2004, at 12:22, Benjamin Schollnick wrote:
>
>> 	After, roughly, only .... <cough> <cough> four thousand and twenty 
>> five <cough> <cough> findertools.move's, the finder will crash....
>
> I can think of two things you may want to investigate:
> 1. Is it always the same file (or filename) that causes the problem? 
> Should be easy to test by, say, removing the first folder that would 
> normally be processed

	Nope.... It does not matter the filename, nor the location....  If you 
move roughly 4000+ files, expect the finder to "lock"...

> 2. You're running out of some resource, probably a resource of which 
> there are 4095 and 70 are already tied up to other purposes. After 
> 4000 files, go into a long sleep(). Start up Activity Monitor, select 
> the Finder and use the Inspect command to check whether it has 4000 
> files open or something. The same for Python.

	What I have discovered since then...

	1) It does not have to be a single execution.	Move 2500, wait 5 
minutes, move another 1500, and expect problems...  This will occur 
even after the program has exited.  (i.e. Run Program A, move 2500.  A 
closes..  Wait 15 minutes..  Run A again.  Or Execute B, etc.

	2) I am not sure what I am looking for in the Activity monitor...
		a) File Opens, does not list any of the files that I am moving.
		b) Finder starts with roughly 4.x MB of Private memory size.  This 
will eventually move to be roughly 16.69 MB.
		c) After the lock up, the Finder starts are:

				1) Real Memory Size: 29.73M			--- New Finder ~13.61
				2) Shared Memory : 36.44Mb			--- New Finder ~ 32.51
				3) Private Memory Size: 16.69 Mb		--- New Finder ~3.50
				4) Virtual Private Memory : 26.80 Mb	--- New Finder ~ 28.90
				5) Faults: 74341	(???? What's this?  Page Faults?) --- New 6746
				6) Page Ins: 129					--- New : 0
				7) Ports : 7303		(???)			--- New : 91
				8) Context Switchs : 85323			--- New : 1225

	(New / New Finder, means reading taken against the new finder (i.e. 
starting stats).


	3) Sample will not work against the finder after the lock up happens.

		- Ben