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SubjectRe: kallsyms 2.6.8 address ordering
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Robin,

I am looking over the link. I can get around this (and already have) with 2.6.7 and 2.6.8 by instrumenting a search routine that deals with the out of order conditions. I appreciate the
helpful and informative response.

Jeff


> On Thu, Aug 19, 2004 at 06:10:25PM +0000, jmerkey@comcast.net wrote:
> > I've noticed that LKML of late is unresponsive to a lot bug posts and
> > that email is being blocked for a lot of folks. It smells like partisan
> > politics based on economic motivations and its not really "open" any
> > more when people stoop to this level of behavior. That aside:
>
> I attribute this to people being over busy right now.
>
> > kallsyms in 2.6.8 is presenting module symbol tables with out of order
> > addresses in 2.6.X. This makes maintaining a commercial kernel debugger
> > for Linux 2.6 kernels nighmareish. Also, the need to kmalloc name strings
> > (like kdb does) from kallsyms in kdbsupport.c while IN THE DEBUGGER makes
> > it impossible to debug large portions of the kernel code with kdb, so I
> > have rewritten large sections of kallsyms.c to handle all these broken,
> > brain-dead cases in mdb and I am not relying much on kdb hooks anymore.
> > Why on earth does Linux need to have shifting tables of test strings
> > for module names requiring all this complexity in the symbol tables
> > and kallsyms.
>
> It must be useful for people using small memory footprint machines.
> Check with the folks doing embedded stuff.
>
> I remember a discussion about kallsyms and scaling problems with
> top reading some /proc/<pid> file.
>
> Look at this:
> http://marc.theaimsgroup.com/?l=linux-kernel&m=108758995727517&w=2
>
> > I don't expect a response so I'll keep coding around the broken Linux
> > 2.6 code but I wanted to post a record of this so perhaps someone will
> > think about over-engineering systems which should be left alone.
> >
> > Jeff
>
> Good Luck,
> Robin Holt
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