RE: pvAccess assert error

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

Hi Michael, I sent a message to both tech-talk and core-talk at 4: 31 PM CST yesterday. This is the tech-talk message: https: //urldefense. us/v3/__https: //epics. anl. gov/tech-talk/2024/msg00292. php__;!!G_uCfscf7eWS!bmNOpw5FmWhW7J7hs8k7hKunvAJL1KAiUVMtLWg60M_Y0F1qm_3OzyqHEmb4XBjxPF1v6SfNStId44T8heqsxHQCaqI$

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Hi Michael,

I sent a message to both tech-talk and core-talk at 4:31 PM CST yesterday.  

This is the tech-talk message:
https://urldefense.us/v3/__https://epics.anl.gov/tech-talk/2024/msg00292.php__;!!G_uCfscf7eWS!bmNOpw5FmWhW7J7hs8k7hKunvAJL1KAiUVMtLWg60M_Y0F1qm_3OzyqHEmb4XBjxPF1v6SfNStId44T8heqsxHQCaqI$

This is the core-talk message:
https://urldefense.us/v3/__https://epics.anl.gov/core-talk/2024/msg00042.php__;!!G_uCfscf7eWS!bmNOpw5FmWhW7J7hs8k7hKunvAJL1KAiUVMtLWg60M_Y0F1qm_3OzyqHEmb4XBjxPF1v6SfNStId44T8heqss-cSrlI$

However, I did not actually then receive the message from tech-talk.  And it seems like maybe you did not either?  It seems like tech-talk archived it but did not send it?

Mark


-----Original Message-----
From: Michael Davidsaver <mdavidsaver at gmail.com> 
Sent: Wednesday, February 28, 2024 12:31 PM
To: Mark Rivers <rivers at cars.uchicago.edu>
Subject: Re: pvAccess assert error

Hi Mark,

Am I being dense today?  I only see a screen capture attached to your original mail.


On 2/28/24 10:25, Mark Rivers wrote:
> 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!bmNOpw5FmWhW7J7hs8k7hKunvAJL1KAiUVMtLWg60M_Y0F1qm_3OzyqHEmb4XBjxPF1v6SfNStId44T8heqskRlwRS8$
> 
> If so, a full stack trace should point at the offending code.
>