Hi Pilar,
What version of 3.14? 3.14.7, 3.14.12.7, etc. What versions of other modules (asyn, stream, etc.) are you running in this IOC?
Mark
________________________________
From: Pilar Gil Jaldo <[email protected]>
Sent: Thursday, September 6, 2018 1:49 AM
To: Mark Rivers; [email protected]
Subject: Re: Linux scan thread suspended
Hi Mark,
that was my mistake sorry. 3.14 is the version that we are using.
Sorry again.
Pilar
On 06/09/18 01:01, Mark Rivers wrote:
Hi Pilar,
I am confused. You said:
Ø It is a 64 bit machine running EPICS 3.13.7 with..
What OS is the IOC running? If it is running base 3.13.7 then it must be vxWorks, because OS-independent IOC core only started with 3.14. Is it really a 64-bit vxWorks machine, or did you make a typo on the version of base?
Mark
From: Pilar Gil Jaldo <[email protected]><mailto:[email protected]>
Sent: Wednesday, September 5, 2018 9:22 AM
To: Mark Rivers <[email protected]><mailto:[email protected]>; [email protected]<mailto:[email protected]>
Subject: Re: Linux scan thread suspended
Hello Mark,
Thank you for your reply. I'm going to give a little bit more information about the system.
It is a 64 bit machine running EPICS 3.13.7 with..
total used free shared buffers cached
Mem: 7812 700 7112 0 49 410
I was speculating with a network problem because I have the same system with the same configuration running outside the network and I have never seen this error before. This error is just happing since the other devices are requesting messages to the CA Network without getting an answer from the offline devices.
The possibility of a non zero terminated string would be also strange because in the other running system everything is working fine.
Thank you very much in advance!
Pilar
On 05/09/18 16:02, Mark Rivers wrote:
Hi Pilar,
I think your case is different from the tech-talk thread. In the tech-talk thread they said there was no IOC error mesage, but in your case you have a very clear IOC error message:
epicsStrDup: mallocMustSucceed(1) - malloc failed Thread scan2 (0x9c2b038) suspending.
This says to me that your IOC has run out of memory. I suspect there is a memory leak somewhere.
Is this a 32 or 64 bit machine, and how much memory does it have?
You could restart the IOC and use "top" to look at the memory usage with time.
What version of EPICS are you using, and what devices does this IOC control?
Mark
-----Original Message-----
From: [email protected]<mailto:[email protected]> <[email protected]><mailto:[email protected]> On Behalf Of Pilar Gil Jaldo
Sent: Wednesday, September 5, 2018 8:36 AM
To: [email protected]<mailto:[email protected]>
Subject: Linux scan thread suspended
Hello everybody,
I have a question regarding the reasons why a scan thread can be suspended. I have a running IOC and at a certain moment the IOC breaks with following message:
epicsStrDup: mallocMustSucceed(1) - malloc failed Thread scan2 (0x9c2b038) suspending.
I have found in the tech-talk messages following reason which seems to be the same problem that mine.
https://epics.anl.gov/tech-talk/2013/msg00154.php
The IOC is on a network where many devices are sending packages to the CA network, but nobody is answering because other devices are switched off (the traffic in the CA is very high).
Is it possible that the segmentation fault is caused by a network congestion? Can the scan thread be suspended by a higher network traffic?
Thank you very much in advance for your answers.
Pilar Gil Jaldo
--
[http://sevensols.com]<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.
--
[http://sevensols.com]<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.
- References:
- Linux scan thread suspended Pilar Gil Jaldo
- RE: Linux scan thread suspended Mark Rivers
- Re: Linux scan thread suspended Pilar Gil Jaldo
- RE: Linux scan thread suspended Mark Rivers
- Re: Linux scan thread suspended Pilar Gil Jaldo
- Navigate by Date:
- Prev:
asking for help on s7nodave =?gb18030?b?s8nN/rvG5a0=?=
- Next:
Problems with soft motors Mark Rivers
- 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: Linux scan thread suspended Pilar Gil Jaldo
- Next:
Linux network tuning Eric Norum
- 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
|