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> 2019 2020 2021 2022 2023 2024 | 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> 2019 2020 2021 2022 2023 2024 |
| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Waiting for mbufs on RTEMS |
| From: | Matt Rippa via Tech-talk <[email protected]> |
| To: | Talk EPICS Tech <[email protected]> |
| Date: | Mon, 3 Dec 2018 12:01:11 -1000 |
Hi all,
Our telescope control system is on an MVME2700, EPICS 3.14.12.7 and RTEMS 4.10.2. We've seen a few events in the last several months of starved mbuf's. There are two main failure paths:
1) If we burden the IOC by calling debug utilities with higher interest levels like dbcar "" 10, or casr 2, we can see CA Client screens go white. Sometimes the system will recover by itself over time.
2) Without iocsh or human interactions, the system can start screaming about mbufs before halting without a stack trace.
We nfsmount a single directory in the startup script. These RPCIO messages below are related to the nfs server on RTEMS I believe.
Should we be resizing the default mbuf capacity? If so, how can we best do this?
Thanks,
-Matt
Nov 30 16:28:40 : RPCIO: server '10.2.2.57' not responding - still trying
Nov 30 16:28:43 : NFS (proc 1) - RPC: Timed out
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:47 : RPCIO: server '10.2.2.57' not responding - still trying
Nov 30 16:28:47 : Still waiting for mbuf cluster.
Nov 30 16:28:48 : Still waiting for mbuf cluster.
Nov 30 16:28:48 : Still waiting for mbuf cluster.
Nov 30 16:28:48 : Still waiting for mbuf cluster.
Nov 30 16:28:51 : NFS (proc 1) - RPC: Timed out
Nov 30 16:28:54 : RPCIO: server '10.2.2.57' not responding - still trying
- Navigate by Date:
- Prev: RE: asynDriver - UDP server Mark Rivers via Tech-talk
- Next: 答复: 转发: ADMythen --acquisition issues zhaoying 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> 2019 2020 2021 2022 2023 2024
- Navigate by Thread:
- Prev: RE: asynDriver - UDP server Mark Rivers via Tech-talk
- Next: areaDetector R3-4 release 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> 2019 2020 2021 2022 2023 2024
·
Home
·
News
·
About
·
Base
·
Modules
·
Extensions
·
Distributions
·
Download
·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·