Re: [PATCH] CONFIG_UNWIND_INFO

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On Wed, Jan 18, 2006 at 10:48:57PM +1100, Paul Mackerras wrote:
> Andrew Morton writes:
> 
> > If you do a `make oldconfig' with CONFIG_DEBUG_KERNEL you get
> > -fasynchronous-unwind-tables and (on my yellowdog-4 toolchain at least) the
> > ppc64 kernel doesn't like that one bit. 
> > 
> > 
> > EXT3-fs: mounted filesystem with ordered data mode.
> > ADDRCONF(NETDEV_UP): eth0: link is not ready
> > tg3: eth0: Link is up at 100 Mbps, full duplex.
> > tg3: eth0: Flow control is off for TX and off for RX.
> > ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> > autofs: Unknown ADD relocation: 44
> > sunrpc: Unknown ADD relocation: 44
> 
> We aren't handling R_PPC64_REL64 relocations in our module code.  This
> patch (completely untested :) might help.

The module loader should be discarding these sections on most architectures
because there is nothing that needs them and it's just a waste of memory
to store them.

[IA64 might be an exception because they have a kernel level unwinder]

So it would be best to change the module loader to do this I guess.

-Andi
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