Messages in this thread | | | Date | Sat, 25 Mar 2006 23:50:35 -0800 | From | Andrew Morton <> | Subject | Re: smp_locks reference_discarded errors |
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Dave Jones <davej@redhat.com> 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?
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