System.map versus /proc/kallsyms

["Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx>]

  i just *know* i'm going to embarrass myself with this question, but
what is the difference between the addresses for a given symbol in
those two locations?

  specifically, i'm looking at a fedora 7 system running the latest
"yum updated" kernel 2.6.21-1.3228.fc7.  if i look at the System.map
file that came with it that's sitting in the /boot directory, that
tells me this:

c130bc00 D jiffies

  OTOH, if i check /proc/kallsyms, i'm told this:

c070bc00 D jiffies

  so how am i supposed to interpret that?  i typically use the
contents of /proc/kallsyms to determine a symbol's address, so how am
i supposed to interpret the info in System.map?  thanks.

rday

-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://fsdev.net/wiki/index.php?title=Main_Page
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