Experimental Physics and
Industrial Control System

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: 

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!

--

Pilar Gil Jaldo

Embedded SW Engineer

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