[postgis-users] Windows Crash

Thu Jun 26 15:52:47 PDT 2008

If the graphics card is using shared memory, you may want to check the
quality of your system RAM. There is high traffic on shared memory when
scrolling large bitmaps in video ram which can reveal faults in
otherwise dependable ram chips.

Good luck.

	-----Original Message-----
	From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Bob
Pawley
	Sent: Thursday, June 26, 2008 3:40 PM
	To: PostGIS Users Discussion
	Subject: Re: [postgis-users] Windows Crash

	Having spent the day looking at my problem it appears to be a
fault in the Intel graphic driver. Word has it that long text lengths
(the shapefiles I downloaded fit that description) apparently causes a
fault in the driver.

	So there doesn't seem to be any problem with Postgis except,
perhaps, verbosity.

	Thanlks for the help.

	Bob

		----- Original Message ----- 
		From: Obe, Regina <mailto:robe.dnd at cityofboston.gov>  
		To: PostGIS Users Discussion
<mailto:postgis-users at postgis.refractions.net>  
		Sent: Thursday, June 26, 2008 1:29 PM
		Subject: RE: [postgis-users] Windows Crash

		Slightly off topic.  Has anyone seen this Linux Haters
Blog.  All Linux users should read it to understand how the mind of a
windows user works so that we can interoperate.

		http://linuxhaters.blogspot.com/

		Similarly I would like to see a windows haters blog so I
can form a fully unbiased opinion of the various factions.  Is there
such a thing?

________________________________

		From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of
Bruce Rindahl
		Sent: Thursday, June 26, 2008 3:53 PM
		To: PostGIS Users Discussion
		Subject: Re: [postgis-users] Windows Crash

		Also on a long shot - do you have any hardware
conflicts?
		Start->Control Panel->System->Hardware->Device Manager 
		Are there any little yellow info symbols?
		Bruce

		Paul Ramsey wrote: 

			This is in no way a PostGIS problem, certainly
nothing we can ever
			fix, just something that the particular
combination of PgAdmin, the
			geometry we are feeding it, and the way the
Windows rendering system
			are interacting.

			My experience has been that these days the thing
that causes a modern
			operating system (Windows, Linux, whatever) to
crash is bad hardware,
			usually bad memory, but sometimes other things.
Basically, the
			operating system itself is usually rock solid
until you shake the
			foundations it sits on, the hardware.

			So basically, all I can offer is the doctor's
advice to the patient
			who said "doctor, doctor, it hurts when I raise
my arm over my
			head!"... "don't raise your arm over your head".

			In the meantime, if you want to fiddle with
things, swapping the order
			of your memory in the sockets, changing out the
video card, even
			changing your screen resolution, might change
the interaction such
			that you can exercise this particular use case
without dropping your
			OS to the floor.

			P.

			On Thu, Jun 26, 2008 at 10:31 AM, Obe, Regina
<robe.dnd at cityofboston.gov> <mailto:robe.dnd at cityofboston.gov>  wrote:

				I second Bruce's comment about unhelpful
comments.

				It may actually have nothing to do with
Windows in fact.

				Now getting back to the crash issue.
Bob if you are still having the same
				issue with that file, maybe you can post
that (or provide a link to the
				shape file you loaded).  It could be
something to do with the shapefile.

				I recall having this same issue with one
particular geometry file way back
				in PgAdmin 1.6 and it was when I
scrolled to a specific record it would
				crash, but then later additions (I
either maybe never selected the geometry
				field again) or it was fixed in later
versions.  Doing an AsText
				always seemed to work where as
displaying the raw binary was where I ran
				into issues.

				The other possibility is that it could
be a defective graphics card. I
				forget which video cards I had bad runs
with, but I remember having this
				same exact issue with my favorite
programming editor JEdit.  I had 2
				identical computers with same drivers
etc and for some reason I would get
				intermittent crashes on one of them.  I
finally just got fed up and replaced
				the graphics card and then it worked
fine.

				Just some thoughts.

				Thanks,
				Regina

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