Shared Memory Problems
Chris Wagner
jwag at moose.asd.sgi.com
Thu Jun 6 01:55:51 AEST 1991
In article <9106041435.AA00794 at sct60a.sunyct.edu>, sweetmr at SCT60A.SUNYCT.EDU (michael sweet) writes:
|>
|> We are developing an application which uses large amounts of shared memory
|> (about 2 Mb in the current configuration) to track different types of datafiles.
|> During integration with other pieces of the project on another machine, we
|> have run into an error/bug that gives the error:
|>
|> "Could not find window slot in shared memory"
|>
|> This is from the NeWS server, and appears on the console whenever the integrator
|> tries to open a new window. She has/is placing a call to the SGI hotline, but
|> I figured you people here might be of more help... The specifics of the
|> shared-memory segment we're using and the the machine are:
|>
|> Model: 4D/20, 16Mb physical memory, 100Mb swap
|> IRIX 3.3.1
|>
|> Shared Memory Segment ~2Mb, using a key value of 6809, and mapped to address
|> 0x02000000.
|>
|> I believe she is running Workspace as well when this happens. Any guesses?
|>
|>
|>
|> -Mike Sweet
|>
|> ------------------------------------------------------------------------------
|> "The only TASC (315) 724-1100 (voice)
|> truth is that 555 French Road (315) 724-2031 (fax)
|> there are no New Hartford, NY 13413 Internet: sweetmr at sct60a.sunyct.edu
|> truths, only beliefs." Delphi: DODGECOLT
|> ------------------------------------------------------------------------------
--
There were some virtual memory problems in 3.3.1 for large programs
using lots of segments (like linking with a bunch of shared libraries)
that could cause erroroneous memory references - I have never seen
this occur on a PI, but its possible - I would strongly recommend
that you upgrade to 3.3.2 (I know, I'm sounding like the hotline)
and see if the problem disappears.
----
Chris Wagner (jwag at sgi.com)
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