Experimental Physics and
Industrial Control System

Juri, 

It seems the same problem happened twice and the first incident happened last May. 
Try Mark's suggestion: https://epics.anl.gov/tech-talk/2020/msg00895.php 

Yong

On 5/19/21, 3:55 PM, "Tech-talk on behalf of Tagger, Jueri via Tech-talk" <tech-talk-bounces at aps.anl.gov on behalf of tech-talk at aps.anl.gov> wrote:

    Indeed! Found it:

    A call to 'assert(ev_que->evque[ev_que->putix] == EVENTQEMPTY)'
        by thread 'CAS-client' failed in ../../../src/ioc/db/dbEvent.c line 781.
    Dumping a stack trace of thread 'CAS-client':
    [    0x7f3a04a9d4bb]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libCom.so.3.15.8(epicsStackTrace+0x4b)
    [    0x7f3a04a96c2a]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libCom.so.3.15.8(epicsAssert+0x3a)
    [    0x7f3a04f5fedb]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libdbCore.so.3.15.8(db_queue_event_log+0xcb)
    [    0x7f3a04f6012d]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libdbCore.so.3.15.8(db_post_single_event+0x3d)
    [    0x7f3a04f8a1e1]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libdbCore.so.3.15.8(event_add_action+0x1c1)
    [    0x7f3a04f8b72e]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libdbCore.so.3.15.8(camessage+0x9e)
    [    0x7f3a04f881e3]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libdbCore.so.3.15.8(camsgtask+0xc3)
    [    0x7f3a04a97d0c]: /home/jtagger/EPICS/R3_15_8-x86_64/base-3.15.8/lib/linux-x86_64/libCom.so.3.15.8(start_routine+0xdc)
    [    0x7f3a03c72064]: /lib/x86_64-linux-gnu/libpthread.so.0(start_thread+0xc4)
    [    0x7f3a03f6f62d]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
    EPICS Release EPICS R3.15.8.
    Local time is 2021-05-19 08:18:56.245430055 EDT
    Please E-mail this message to the author or to tech-talk at aps.anl.gov
    Calling epicsThreadSuspendSelf()
    Thread CAS-client (0x7f3978023160) suspended
    callbackRequest: cbLow ring buffer full
    epics> date
    2021/05/19 11:05:33.287078

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