Wednesday Sep 08, 2010

Oracle Solaris 10 Update 9: FMA Fixes

It's been a long time since my last blog on FMA - I've since moved into another technology area. Maybe someday I'll garner enough knowledge there to start blogging. In the meantime, with the release of Oracle Solaris 10 Update 9 today, I thought I'd reprise my "favorite FMA fixes" blog entry for this release. So here's my (thankfully short :) list of my favorites:


6627041 Add a PSN nv-pair to the authority portion of the FMRI scheme

This may be less exciting to the end users, but my top favorite. This fix includes the product serial number (PSN) into the FMA fault telemetry. It's a key piece of information to improve the Oracle Auto Service Request (ASR) program. With the PSN, the "Auto" part of ASR is sped up. Hmm...maybe this is exciting for customers - you'll get a faster turn around time on parts servicing.


6502086 DBU errors should be diagnosed as HV defect/fault
6502089 ferg.invalid errors should be diagnosed as a fault

These two CRs provide a level of diagnosis for firmware issues on the sun4v systems. The first covers an error that should not happen unless there's a bug in the hypervisor. The second warrants a little explanation. On CMT systems, FMA telemetry is sourced in the SP - the hardware error is collected in the SP, packaged into an ereport, and provided to Solaris. If the error bits collected can't be mapped to a defined ereport, a "ferg.invalid" ereport is produced. Basically saying "There's been an error, but can't determine what kind". This shouldn't happen outside the lab. If it does, it indicates a logic flaw in the firmware on the SP.


6764337 Needs level 2 FMA compliance for chipset 5100 MCH
6889350 fma fails if DIMM sizes are mixed

A couple of fixes for various Intel configurations. The first enhancing FMA support to include another memory controller chipset. Oracle's CP3250 blades use the 5100 chipset. The second here fixes up a bug - the bug description is self explanatory.


6860401 FMA CPU Topology & Memory Topology needs to support Magny Cours(Multi chip Module)
6812502 Enable Generic-AMD FMA memory topology for Istanbul

These fixes enable CPU and memory diagnosis for the more recent AMD processor offerings. Beyond the typical changes of new model numbers, these processors have a more interesting topology with multiple processing nodes within a single package. Solaris 10 Update 9 understands these chips and creates the correct topology to support FMA diagnosis.

:wq

Friday Jul 16, 2010

nmap 5.35DC1 Compile on OpenSolaris

The formal OpenSolaris offering of nmap is out of date, and nmap 5.35DC1 has been released. I found that a small patch to libnetutil was needed to get a compile.

$ bunzip2 -c nmap-5.35DC1.tar.bz2 | tar -xf - $ patch -p1 nmap-5.35DC1.solaris.patch

From there, my prior instructions to compile nmap work fine. To the best of my knowledge, the caveats with Solaris still hold (namely having to run unprivileged).

:wq

Wednesday Jul 07, 2010

What Topology Map(s) is FMA Using?

When debugging FMA issues, there's been several times I've wanted to know what XML maps are being used to generate (or fail to generate :) the FM topology. I guess I reached a sufficient point of annoyance, so I wrote a pair of dtrace scripts to automate this. Here's an example from an Ultra 24 workstation running snv_140.

# ./topomaps.d -c /usr/lib/fm/fmd/fmtopo 2>/dev/null | grep Map Map: //usr/platform/i86pc/lib/fm/topo/maps/i86pc-hc-topology.xml Map: //usr/platform/i86pc/lib/fm/topo/maps/i86pc-legacy-hc-topology.xml Map: //usr/platform/i86pc/lib/fm/topo/maps/chip-hc-topology.xml Map: //usr/platform/i86pc/lib/fm/topo/maps/chassis-hc-topology.xml \^C

Now, I did say a pair of dtrace scripts. topomaps.d is the first script, which calls a second script topomapmon.d that ultimately traces the calls to topo_xml_read(). Two scripts are required to deal with the dynamic loading done by fmtopo. Anyway, drop both in the same directory and run with sufficient privileges and you should be good to go.

:wq

About

user9148476

Search

Categories
Archives
« April 2014
SunMonTueWedThuFriSat
  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
   
       
Today