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Re: Track leaked Filedescriptors
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Re: Track leaked Filedescriptors


  • Subject: Re: Track leaked Filedescriptors
  • From: Totte Alm <email@hidden>
  • Date: Sun, 29 Jan 2006 23:11:41 +0100


  Since you have a DTK system you should have an ADC account, and
so getting some attention for your bug shouldn't be too hard.
I've started to try to make this "one Question" to dts so I can use a
technical incident to solve it. The problem is (I've been in touch
with dts many times) is how to "define" this bug. That the reaason I
turned to this list, as everybody I spoke to pointed here, and told
me that this is the place if you want to know how to find out things
that buried deep into Darwin.

It is.  It helps if you a) tell us everything up front, and b) listen to what's
said when you do, though. 8)

What I wanted was to know how I can get a accurate list of processes
usage of system resources (fd:s is one of them) so I can tell Apple
something like "Why is Java eating all those filedescriptors with
this piece of code"?

If I cannot put it tis simple, it wont be one question, and it wont
fit into the "one question per incident" formula.

Right now, I'm suggesting that if you ask that "one question" you will
have wasted it.

Sorry if I sound to hash, but everybody seems to look at this as "it
impossible, it cannot happen", but ask me, I can give you DL
instructions and my crash samples, and you can see four your self how
bad this issue is".

I'm not denying for a second that you have a reproducible crash case;
merely attempting to direct you down a path that will get it resolved.

When you spoke with Apple Sweden about this issue in the first place,
did they give you a bug number?

[Eric Albert]
If you have a test case that reproduces this bug, please file a bug
report with that test case.  If it's as reproducible as you're
describing, you almost certainly won't get it tossed back to you as
being impossible.

If you do, or if Apple.se filed a bug in order to get this investigated
in the first place, please post it to this thread so that we can look at it.

I went through Apple Care Europe, Ireland or UK i guess, no bug-number came in my direction.
We got a new XServa as we though títwas a HW error that caused this, so we had 90 days support.

OK, bug filed, Bug ID# 4425932

I know the setup is a little demanding but Iried to explain as good as possible.

Thanks for taking this seriously.
This is a customer mission critical system that this started to happen on when we went from 10.3 ->Z 10.4 and at the same time updated the DBServer.
We cannot step backwards, as we have "updated" the databases for the new format, and I guess backing down would just be a horrible by itself.

Stuck between a rock and a damn hard place.

// Totte - Code 66


Regards,
Mike Smith
CoreOS/Kernel
Apple Computer


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