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Subject: Re: Question about "Link A array too large"
From: Michael Davidsaver <[email protected]>
To: Mark Rivers <[email protected]>, lzf neu <[email protected]>
Cc: "[email protected]" <[email protected]>
Date: Thu, 29 Dec 2016 16:40:50 -0500
On 12/29/2016 01:55 PM, Mark Rivers wrote:
> What version of EPICS base, asyn, and modbus are you using? I cannot find any error messages in base 3.14.12.5 that contain the string "array too large". Is that the exact error message you are getting?

This may be coming from aSubRecord (though with a capital A in the
message).  Prior to Base 3.14.12.3 aSubRecord had an artificial limit of
10000000 bytes per field.  Above this limit the array was not allocated
and the field was left as NULL.  Which will almost certainly cause a
segfault as no code looks for this.

https://github.com/epics-base/epics-base/commit/71079ede4b86af81805d0e26d99533909fdba7ba#diff-f2f712a57622c71212a8f9d64c005778L94


References:
Re: Question about "Link A array too large" Mark Rivers

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