On Sat, Mar 25, 2006 at 11:50:35PM -0800, Andrew Morton wrote:
> Dave Jones <[email protected]> wrote:
> >
> > since the addition of smp alternatives, the following is occuring..
> >
> > Error: ./drivers/md/md.o .smp_locks refers to 0000008c R_386_32 .exit.text
> > Error: ./drivers/usb/storage/libusual.o .smp_locks refers to 00000008 R_386_32 .exit.text
> > Error: ./net/802/psnap.o .smp_locks refers to 00000000 R_386_32 .exit.text
> > Error: ./drivers/pci/hotplug/ibmphp_hpc.o .smp_locks refers to 00000008 R_386_32 .exit.text
> > Error: ./drivers/pci/hotplug/ibmphp_hpc.o .smp_locks refers to 0000000c R_386_32 .exit.text
> >
> > example .config at http://people.redhat.com/davej/kernel-2.6.16-i686-smp.config
> >
>
> I guess an atomic operation in __exit code will cause that. down() and
> atomic_dec_and_test() in two cases.
>
> I suspect most of these callsites are just wrongly coded - it's pretty
> unusual for __exit code to really need to lock anything - what is there to
> be racing against?
>
> This is emitted by reference_discarded.pl?
came out of a 'make buildcheck' a day or two ago (the following day,
Sam nuked reference_discarded.pl in favour of it being done
magically somewhere else (I've not looked into how its done now).
Dave
--
http://www.codemonkey.org.uk
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