[fm-discuss] help locating problems...

[Tim Haley]

And regarding the "code that generates the fault", there isn't one
particular call in the kernel that generates that fault.  Instead code
in the kernel has generated one or more ereports (short for error
reports).  Those error reports have come from the kernel to the
user-land fmd.  The fmd has recorded them in its error log.  An fmd
plugin, eft, has then coalesced those ereports and decided what fault
can cause the observed symptoms.  Eft has then published something
called a suspect list, which in this case has one entry, the fault you
are seeing.  The suspect list was broadcast to another plugin, the
syslog messaging agent, which should have put a summary of this "case"
into syslog and onto the console.

That's a really brief description of the fault management architecture.

-tim

On Wed, 9 Aug 2006, Garrett D'Amore wrote:

> Okay, I'm new to FMA.  Solaris b44 is reporting the following error:
>
> TIME                 UUID                                 SUNW-MSG-ID
> Aug 09 10:47:31.0395 35fc7dee-e5b9-6028-d333-cbcd5a272c35 PCI-8000-7J
>  100%  fault.io.pci.device-interr
>
>        Problem in:
> hc:///motherboard=0/hostbridge=0/pcibus=1/pcidev=3/pcifn=0
>           Affects: dev:////pci@1f,700000/network@3
>               FRU: hc:///component=MB
>
>
>
> What I can't figure out easily is how to determine where the code that
> is generating this fault resides.  I'm guessing it is in pcisch, but
> honestly, I'm a bit at a loss.
>
> Also, are there any design documents for FMA available anywhere?
> Ideally I'd like to have something both helps me figure out problems
> like this (down to tracking it down to a line of code), and also gives
> me information so that I know how to start adding code to inject my own
> errors from the code that I've written.  (E.g. how do I play with FMA in
> an unbundled NIC driver, etc.)
>
> -- 
> Garrett D'Amore, Principal Software Engineer
> Tadpole Computer / Computing Technologies Division,
> General Dynamics C4 Systems
> http://www.tadpolecomputer.com/
> Phone: 951 325-2134  Fax: 951 325-2191
>
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