EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  <20002001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  <20002001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: Tornado/2.0 error message
From: [email protected] (Jeff Hill)
To: "Pete R. Jemian" <[email protected]>, "Tech-Talk" <[email protected]>
Date: Mon, 23 Oct 2000 15:27:53 -0600
> >2000-10-23,12:18:11: interrupt: callbackRequest ring buffer full
> 

This indicates that some interrupt service routine
is calling the EPICS routine callbackRequest() to add callback requests
to the callback queue at a rate that is faster than the callback thread
can dispatch the requested callbacks. This might occur if an EPICS
driver was calling scanIORequest() from interrupt level very frequently
or it might occur because some other high priority thread is saturating 
the CPU and preventing the callback thread from running.

> >2000-10-23,09:09:45: 0x78dd64 (tNetTask): arptnew failed on a436d813
> >2000-10-23,09:15:45: 0x78dd64 (tNetTask): arptnew failed on a436d813
> >2000-10-23,09:23:45: 0x78dd64 (tNetTask): arptnew failed on a436d813
> >2000-10-23,09:29:45: 0x78dd64 (tNetTask): arptnew failed on a436d813
> >2000-10-23,09:35:45: 0x78dd64 (tNetTask): arptnew failed on a436d813
> >2000-10-23,09:43:45: 0x78dd64 (tNetTask): arptnew failed on se

Perhaps these errors are resulting from attempts by arp to build an 
Ethernet address <=> IP address association, but there is already
an inconsistent entry in its tables. I would type "arpShow" to see
if there are configuration problems (possibly related to a back plane 
network).

Jeff


Replies:
Re: Tornado/2.0 error message Andrew Johnson
References:
Tornado/2.0 error message Pete R. Jemian

Navigate by Date:
Prev: Tornado/2.0 error message Pete R. Jemian
Next: Re: Tornado/2.0 error message Andrew Johnson
Index: 1994  1995  1996  1997  1998  1999  <20002001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Tornado/2.0 error message Pete R. Jemian
Next: Re: Tornado/2.0 error message Andrew Johnson
Index: 1994  1995  1996  1997  1998  1999  <20002001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 10 Aug 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·