RE: pvAccess assert error

[Mark Rivers via Tech-talk <tech-talk at aps.anl.gov>]

Hi Michael, Thanks for the reply. I sent the full stack trace yesterday. Mark -----Original Message----- From: Michael Davidsaver <mdavidsaver@ gmail. com> Sent: Wednesday, February 28, 2024 12: 20 PM To: Mark Rivers <rivers@ cars. uchicago. edu>

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Hi Michael,

Thanks for the reply.  I sent the full stack trace yesterday.

Mark


-----Original Message-----
From: Michael Davidsaver <mdavidsaver at gmail.com> 
Sent: Wednesday, February 28, 2024 12:20 PM
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: tech-talk at aps.anl.gov
Subject: Re: pvAccess assert error

On 2/26/24 16:37, Mark Rivers via Tech-talk wrote:
> Folks,
> 
> I am running a new areaDetector camera.  It generates frames that are 4096x3072 pixels, 8-bit.  I can collect data from the camera at 150 frames/s using a BitFlow CoaXSpress card with no problems.  This is on a Windows PC.
> 
> However, when I try to use pvAccess to read the data from the NDPluginPva plugin I get an assert error in pvAccess in my Windows application.  The error message is in the attachment.
> 
> This happens when I use the ImageJ pvAccess plugin, and also when I use the following Linux command on another machine:
> 
> $ pvmonitor 13BF1:Pva1:Image > /dev/null
> 
> Any idea what the problem could be?  This is base 7.0.7.

At a guess, maybe another size()==0 situations as with:

https://urldefense.us/v3/__https://github.com/epics-base/pvDataCPP/issues/50__;!!G_uCfscf7eWS!dmvyzGYp-pOd44JRfW6GBwEFBUAzreA9-I41CGv8a-8ewFGyXTokRQOn_sT3Pn7kKx9rBtfUEqKcisXZMeKZT9EQq9w$

If so, a full stack trace should point at the offending code.