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: | [Fwd: Re: Large number of sequencers running per soft IOC under Linux: Kernel becomes unresponsive] |
From: | Maren Purves <[email protected]> |
To: | [email protected] |
Date: | Wed, 27 Apr 2011 11:35:28 -1000 |
I meant to send this with copy to the list in the first place ... Maren Purves wrote:
Ernest L. Williams Jr. wrote:Hi,When reviewing the recent "gateway aborted by SIGBUS" EPICS tech-talk thread; I recall a possibly related issue. Here I am referring to understanding what system resources are impacted as the number of softIOC(s) growsper "linux server"[...]Has anyone else seen an issue like this? Any ideas and references will be appreciated.Hi Ernest, not EPICS related, but we had an issue of running out of semaphores several years ago that our sys-admins resolved by recompiling the kernel(s) with a much higher semaphore limit. I also recall an issue with a shared memory leak (also non-EPICS related). HTH, Maren