Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
<== Date ==> <== Thread ==>

Subject: I/O Intr scanning
From: Pilar via Tech-talk <tech-talk@aps.anl.gov>
To: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Mon, 27 May 2019 22:19:20 +0200

Dear all,

I'm using a asynPortDriver (4.33) with EPICS base (3.16).

The way I create my asynPortDriver is:

EWBAsynPortDrvr(const char *portName,int max_nprm)
: asynPortDriver(portName,
        1,
        (asynInt32Mask | asynFloat64Mask | asynOctetMask | asynDrvUserMask), /* Interface mask */
        (asynInt32Mask | asynFloat64Mask | asynOctetMask), /* Interrupt mask */
        0, /* asynFlags.  This driver does not block and it is not multi-device, so flag is 0 */
        1, /* Autoconnect */
        0, /* Default priority */
        0), /* Default stack size*/

and I have one example PV defined as: 

record(ao, "$(user):BoardIDSet")
{
    field(DTYP ,"asynInt32")
    field(OUT  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))board_ID")
    field(DESC ,"Board Identification")
    field(VAL , "3")    
    field(LOPR, "0")
    field(HOPR, "5")    
    field(PINI ,"YES")
}


record(ai, "$(user):BoardIDRdbk")
{
    field(DTYP ,"asynInt32")
    field(INP  ,"@asyn($(PORT),$(ADDR),$(TIMEOUT))board_ID")
    field(SCAN ,"I/O Intr")
    field(DESC ,"Board Identification")
}

If I set BoardIDSet to a certain value (for example: 3) BoardIDRdbk does not see the change and it doesnt get updated. But if I try to write again BoardIDSet following error ocurrs:


 Error in `/home/sevensols/bpm/bpm_epics/bin/linux-x86_64/AsynBPM7S': double free or corruption (fasttop): 0x00000000023e1b70 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x81489)[0x7f145ae31489]
/home/epicsmgr/EPICS/support/asyn/lib/linux-x86_64/libasyn.so(_ZN8paramValD1Ev+0x11)[0x7f145d2d7611]
/home/xxx/bpm/bpm_epics/lib/linux-x86_64/libewbasyn.so(_ZN15EWBAsynGenPVPrmD0Ev+0x9)[0x7f145c09bec9]
/home/xxx/bpm/bpm_epics/lib/linux-x86_64/libewbasyn.so(_ZN15EWBAsynPortDrvr10writeToDevEii+0x4e)[0x7f145c09ad1e]
/home/epicsmgr/EPICS/support/asyn/lib/linux-x86_64/libasyn.so(+0x37ae2)[0x7f145d2d8ae2]
/home/epicsmgr/EPICS/support/asyn/lib/linux-x86_64/libasyn.so(+0x44be5)[0x7f145d2e5be5]
/home/epicsmgr/EPICS/support/asyn/lib/linux-x86_64/libasyn.so(+0x16658)[0x7f145d2b7658]
/home/epicsmgr/EPICS/support/asyn/lib/linux-x86_64/libasyn.so(+0x45af9)[0x7f145d2e6af9]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbRecStd.so.3.16.1(+0xe998)[0x7f145ce3d998]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(dbProcess+0x1d8)[0x7f145cbc4508]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(dbPutField+0x3ce)[0x7f145cbc617e]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(dbChannel_put+0x9e)[0x7f145cbe07fe]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(+0x648a4)[0x7f145cc068a4]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(camessage+0x9d)[0x7f145cc0515d]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libdbCore.so.3.16.1(camsgtask+0x13c)[0x7f145cc0203c]
/home/epicsmgr/EPICS/base/lib/linux-x86_64/libCom.so.3.16.1(+0x40b6c)[0x7f145c706b6c]


Can somebody tell me whay the I/O Scan is not working? And also why this error ocurrs

Thank you very much in advance!

--

http://sevensols.com
Pilar Gil Jaldo

Embedded SW Engineer

This e-mail and any materials attached hereto, including, without limitation, all content hereof and thereof are confidential and proprietary to Seven Solutions,S.L and/or its affiliates, and are *confidential*. Without the prior written consent of Seven Solutions, this content may not (i) be disclosed to any third party, (ii) be reproduced, modified or otherwise used by anyone other than current employees of Seven Solutions or its affiliates. If you are not the intended recipient or if this message has been received in error, please immediately notify us via e-mail and delete it.

 This e-mail and any materials attached hereto, including, without limitation, all content hereof and thereof are confidential and proprietary to Seven Solutions,S.L and/or its affiliates, and are *confidential*. Without the prior written consent of Seven Solutions, this content may not (i) be disclosed to any third party, (ii) be reproduced, modified or otherwise used by anyone other than current employees of Seven Solutions or its affiliates. If you are not the intended recipient or if this message has been received in error, please notify us immediately via e-mail and delete it.

Navigate by Date:
Prev: Re: Scanning 101 Mark Rivers via Tech-talk
Next: FW: I/O Intr scanning Mark Rivers via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
Navigate by Thread:
Prev: Re: Stream module git link broken? Jemian, Pete R. via Tech-talk
Next: FW: I/O Intr scanning Mark Rivers via Tech-talk
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  <20192020 
ANJ, 27 May 2019 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·