Re: [OT] System wide UI hang when Eclipse running?
Re: [OT] System wide UI hang when Eclipse running?
- Subject: Re: [OT] System wide UI hang when Eclipse running?
- From: Allen Cronce <email@hidden>
- Date: Thu, 23 Sep 2004 09:29:39 -0700
Hi Mike,
As part of trying to diagnose these problems, I ran the bootable
hardware test on my G5 and the TechTools tests on my PB. No problems
were found. And we also ran the bootable hardware test on one of the
other G5's that's seeing this problem.
But even if there were a hardware problem on all of our machines, why
would there be such a correlation between installation and use of
Eclipse and the first instances of trouble? I mean, even without
Eclipse, we exercise the heck out of these machines just building and
debugging huge web applications.
Please understand that I'm not against Eclipse in any way. It's by far
the best Java IDE I've ever used. I just want to be able to use it
without hanging my system every single day.
Best regards,
--
Allen Cronce
Michael Engelhart wrote:
I'm not sure that this helps but I have a dual 1.8 G5 (2GB RAM) with
eclipse 3.0 and WO 5.2.3 and Xcode 1.5 dev tools all of which I use
all day every day and I have not had one freeze like that. I also
have a G4 Powerbook (667Mhz - 1GB RAM) that i use at home that has
all the same software and that also hasn't had any problems. Can
you confirm it's not bad RAM or some other hardware. I know my G5
was delivered with faulty RAM that I had to return for a new set.
The machine would boot and about 15 minutes into it the screen would
flash a bit and then a core dump would follow shortly. As soon as I
replaced the RAM all was well. I was told by the apple person that
the high speed RAM is "very" finicky.
Mike
On Sep 23, 2004, at 10:37 AM, Allen Cronce wrote:
Hi all,
A couple of months ago we purchased several new dual 1.8 Ghz G5 and
15" PowerBook systems for our office. All of the machines have been
running smoothly except for mine.
On the G5 I see a system wide UI hang about once a day. I can move
the mouse, but can't click on anything and the keyboard is locked
out. I can SSH into the machine, but after examining a few processes
and logs, nothing jumps out as the cause. The hang doesn't seem to
be application specific. I've seen it in several applications,
including Safari, CodeWarrior and Eclipse. I've run the hardware
test and no problems show up. And I've tried removing all third
party start up software. The hang still happens.
On the PowerBook I see a problem waking from sleep where I'm asked
for my password, then the screen goes blank. I can move the mouse
and the back light is on, but the screen is just a mass of black
pixels. If I press the power button followed by the the return key,
the machine goes through the normal shut down process (as you'd
expect as long as there are no open changed documents). At the end
just before the shut down, the desktop makes a brief appearance.
I was just to the point were I was going to contact Apple support
when one of the other new G5's started exhibiting the UI hang. The
only change on that system was that the developer had installed and
was running Eclipse 3.0. That set off an alarm bell in my head
because in every case where I've seen these problems, I've had
Eclipse running.
As an experiment, we took one of our new G5's and installed Eclipse
to see what would happen. This machine's hardware is identical to
the others. And up till the installation of Eclipse it had been
working perfectly without a single hiccup. The developer installed
Eclipse and had it running in the background while using Xcode and
other applications. After about a day and a half, he saw the same
wake from sleep blank screen problem that I've seen on the PowerBook.
So while I realize that this is not hard evidence, it certainly
feels like running Eclipse is precipitating these problems. Maybe
there's some general Mac OS X Java VM problem with SWT applications.
Note that all of these machines also have Xcode 1.5 and WO developer
5.2.3 installed with the latest Java VM 1.4.2_05-141 and all of
Apple's software updates.
For now I've reported a bug to both the Eclipse group and Apple. But
I know how tough it is to deal with these kind of random, difficult
to reproduce problems.
The question for this group is have any of you seen the kinds of
problems that we're seeing while Eclipse is running? If so, I'd be
interested in what your hardware configuration is or any other
details. Please feel free to write to me directly.
Best regards,
--
Allen Cronce
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