Error 8 (file permissions) when using Help:Search

[tobin2]

Hi there,

When I use the help system and do a search, I get the following error:

Error 8 occurred at Open File
Possible reason(s):
LabVIEW:  File permission error. You do not have the correct permissions for the file.
=========================
NI-488:  DMA hardware error detected.

This is Labview 8.2 running on Linux (Enterprise RHEL4), and I had the same problem with Labview 7.1.  The problem seems to be caused by the permissions on some or all of the following files, which are written to the /tmp directory when the search is performed:
controls2.htm 
index2.htm 
js_buttons.htm 
search_results.html

If I do a search, these files are written but not erased (with permissions -rw-r--r--).  If someone else then does a search, they get the Error 8 problem listed above.  If the owner of these files (or root) deletes them, the problem is solved -- until a different user than the owner of those temporary files wants to search the help system.

My guess is that if I could get Labview to either open up the write permissions on these files or delete them after the help session is complete, the problem would be solved.

Any advice?  Has anyone else had this problem (you would need a multiple-user linux system to see it)?

Thanks,
Tobin

[DrewPierce]

Hi Tobin-

The following KnowledgeBase articles provide some valuable insight.  Check them out and reply if they don't help resolve the problem.

KB 3GFF9FBP: Why do I get "Error 8 Occurred at Open File" When Writing to or Reading From a File?
KB ...

And there are lots of discussions about this already.  For other possible causes/solutions, try searching the forums for "file permission error 8".

[tobin2]

Thanks for the reply.  Those articles (and all the articles that I could find in the knowledgebase) don't address the problem, though.

I do not have a vi that does a file write or read -- I am simply trying to use the LabVIEW help system!  For example, if I start LabVIEW, and don't even open a blank vi, but try to use the help system directly from the splash screen to search for some subject, I get the error 8.  This happens regardless of my browser as well (firefox or konqueror).

-Tobin

[DrewPierce]

Hi Tobin-

Thanks for the clarification. And I see your point...since this is happening natively in LabVIEW, those KnowledgeBase articles don't help much in addressing this uniquely different problem. So I submitted all the details of your situation in a report to R&D for their review/assessment (ID# 4A9F015W for future reference). I will post back here once I know anything further. Thanks for your input and feedback. And I'm sorry for the inconvenience. Hopefully we can determine something conclusive soon.