<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 12 (filtered medium)"> <style>  </style>  </head> <body lang=EN-GB link=blue vlink=purple> <div class=WordSection1> To all developers reading this I have discovered the route of the problem but could probably do with some sort of workaround for others;<o:p></o:p> <o:p> </o:p> Basically as you know, when the system attaches itself to the server it collects a load of hardware information, this calls upon dmidecode which scans /dev/mem.<o:p></o:p> <o:p> </o:p> The error although seemingly random seemed to happen on boxes that had a loud of dodgy information in /dev/mem. I could get the servers connecting to spacewalk by deleting the /dev/mem device (or renaming it for the rhnreg_ks command and then rename it back).<o:p></o:p> <o:p> </o:p> I think there should be a workaround for this since this information was nowhere on the internet. Should I raise a bug report since this was happening to me 1 in 4 servers.<o:p></o:p> <o:p> </o:p> Cheers,<o:p></o:p> Chris<o:p></o:p> <o:p> </o:p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'> From: spacewalk-list-bounces@redhat.com [mailto:spacewalk-list-bounces@redhat.com] On Behalf Of Christopher May-Townsend Sent: 02 September 2010 18:08 To: spacewalk-list@redhat.com Subject: [Spacewalk-list] Python errors on rhnreg_ks<o:p></o:p> </div> </div> <o:p> </o:p> Hi all, I’m having an issue with spacewalk when I try and connect to the server;<o:p></o:p> <o:p> </o:p> [root@lcmrst1 ~]# rhnreg_ks --serverUrl=http://lcmspacewalk1.liquid-capital.liquidcap.com/XMLRPC --activationkey=1-ac4909121ec738d6f8a4ac2842062d54<o:p></o:p> python: src/dmidecode.c:4083: dmi_decode: Assertion `sub_n != ((void *)0)' failed.<o:p></o:p> Aborted<o:p></o:p> <o:p> </o:p> At first it was just a couple of boxes but after trying to deploy across a range of boxes it has come up several times. I’ve googled to no avail, I went on IRC and asked around and no one knew what the problem was so I’m coming here.<o:p></o:p> <o:p> </o:p> I’m going to try and shoehorn a newer version of python-dmidecode (possibly from fedora) but I wanted to come here to see why 7 out of 29 systems have this error, I’m happy to switch on debug mode, compare install lists, anything to help you lot get to the bottom of this.<o:p></o:p> <o:p> </o:p> Some background info; all boxes installed identically off the same kickstart script, on a wide range of off the shelf hardware, it fails and works on 32bit/64bit centos 5.2 up to 5.5. A full yum upgrade doesn’t fix the problem and the version of python dmi-decode it installs is 3.10.8-4.el5<o:p></o:p> <o:p> </o:p> Thank you all for your time,<o:p></o:p> Chris<o:p></o:p> <pre>Liquid Capital Markets Ltd (Registered Number 03986148), Liquid Capital <o:p></o:p></pre><pre>Securities Limited ("LCS") (Registered Number 04118899) and Liquid Capital <o:p></o:p></pre><pre>Trading LLP (Registered Number OC313325) are authorised and regulated by the <o:p></o:p></pre><pre>Financial Services Authority in the United Kingdom. <o:p></o:p></pre><pre>LCS (France) and LCS (Germany) are branches of LCS and are subject to the <o:p></o:p></pre><pre>regulation of the AMF (France) and the Bafin (Germany)<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>LCS is also registered with the National Futures Association ("NFA") as an<o:p></o:p></pre><pre>Exempt Foreign Broker. Liquid Capital Australia Pty Ltd is registered by the<o:p></o:p></pre><pre>Australian Securities and Investment Commission. 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