Good day, Alright, my bad. After closer studying I realized I had misread where the defines were delimiting each function. :/ Sorry for the invalid report (and yes, I had other issues setting up and running the modules, but I was pretty sure the missing symbols were caused because of the define, which turned out to be false). Cheers~ Walther. On Wed, 1 Jul 2009 11:41:38 +0200 Avi Kivity <avi@xxxxxxxxxx> wrote: > On 06/29/2009 06:18 PM, Walther Maldonado wrote: > > Good day, > > > > Today when attempting to compile and install the KVM module (kernel 2.6.30), inserting the module would error with a number of unresolved symbols such as preempt_notifier_register() not found. > > > > Some code-browsing revealed that, even though the kvm KConfig setting "KVM" does select PREEMPT_NOTIFIERS, in include/linux/preempt.h, said define will not cause the expected functions to be defined unless CONFIG_PREEMPT is also selected. > > > > > > Not in my copy of v2.6.30. preempt.h only guards the preempt notifier > symbols with CONFIG_PREEMPT_NOTIFIER. > > I built sched.o with CONFIG_PREEMPT_NONE=y and see: > > [avi@cleopatra linux-2.6 (v2.6.30)]$ nm kernel/sched.o | grep > preempt_notifier > 00000000c559bf4c A __crc_preempt_notifier_register > 000000008be61cbb A __crc_preempt_notifier_unregister > 0000000000000028 r __kcrctab_preempt_notifier_register > 0000000000000020 r __kcrctab_preempt_notifier_unregister > 0000000000000232 r __kstrtab_preempt_notifier_register > 0000000000000216 r __kstrtab_preempt_notifier_unregister > 0000000000000050 r __ksymtab_preempt_notifier_register > 0000000000000040 r __ksymtab_preempt_notifier_unregister > 0000000000000c77 T preempt_notifier_register > 0000000000000caf T preempt_notifier_unregister > > Perhaps you have a stale kernel installed? Try reinstalling the kernel > and modules and rebooting. > > -- > error compiling committee.c: too many arguments to function > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
