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<== Date ==> <== Thread ==>

Subject: Re: Possible Bug in 3.14.9 Access Security on mv2100
From: Ralph Lange <[email protected]>
To: Jeff Hill <[email protected]>
Cc: "'EPICS core-talk'" <[email protected]>, "'Steven Hartman'" <[email protected]>
Date: Fri, 10 Aug 2007 09:58:01 +0200
Note that the setup of my original system was:

vxWorks:
Using the same 3.14.8.2. (optimized) client, the faulty behaviour (100%) appears with 3.14.9 (optimized) IOCs, and does not appear with 3.14.8.2 (optimized) IOCs.

Linux:
Using the same 3.14.8.2 (optimized) client, the faulty behaviour (20%) appears with a 3.14.9 (optimized) soft IOC, and does not appear with a 3.14.8.2 (optimized) soft IOC.

Ralph


Jeff Hill wrote:
More observations from Steven:

Now, I just rebuilt all of base on linux with HOST_OPT=NO. Even stranger.
Using optimized build on linux, caget failed with an unexpected read access error 19 out of 20 times just tested. Using non-optimized build on linux, caget failed 2 out of 20 times!

This appears to be a major hint. I need to confirm that the behavior changed
this way (as described above) when the CA client library's optimization
level changes, and that during this experiment the IOC's optimization level
was not changed.

Jeff


References:
RE: Possible Bug in 3.14.9 Access Security on mv2100 Jeff Hill

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