Re: 2.4.5-ac12 kernel oops

From: Keith Owens (kaos@ocs.com.au)
Date: Mon Jun 25 2001 - 10:41:52 EST


On Mon, 25 Jun 2001 08:15:49 -0700 (PDT),
klink@clouddancer.com (Colonel) wrote:
>ksymoops 2.4.1 on i686 2.4.5-ac12. Options used
>Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01aad00, System.map says c014cba0. Ignoring ksyms_base entry
>Why the symbol mismatch?

The mismatch is caused by two variables called partition_name. What
does 'nm vmlinux | grep partition_name' show? Probably one
partition_name at c01aad00 and another at c014cba0. Both
fs/partitions/msdos.c and drivers/md/md.c define that symbol, md
exports its version. A good reason why exported symbols should have
unique names.

>Why ignore /proc over the System.map?

ksymoops has a hierarchy of trust. System.map is more trustworthy than
/proc/ksyms because ksyms changes, especially if you rebooted after the
oops and before running ksymoops.

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