Messages in this thread | | | Subject | Build error for nommu if CONFIG_DEBUG_ATOMIC_SLEEP is selected | From | Axel Lin <> | Date | Fri, 18 Oct 2013 17:27:55 +0800 |
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Hi Michael,
I got below build error for nommu if CONFIG_DEBUG_ATOMIC_SLEEP is selected. Also got the same build error if CONFIG_PROVE_LOCKING is selected.
Seems this issue is introduced by commit 662bbcb2747c2 "mm, sched: Allow uaccess in atomic with pagefault_disable()".
arch/arm/kernel/built-in.o: In function `arch_ptrace': arch/arm/kernel/ptrace.c:852: undefined reference to `might_fault' arch/arm/kernel/built-in.o: In function `restore_sigframe': arch/arm/kernel/signal.c:173: undefined reference to `might_fault' arch/arm/kernel/signal.c:174: undefined reference to `might_fault' arch/arm/kernel/signal.c:175: undefined reference to `might_fault' arch/arm/kernel/signal.c:176: undefined reference to `might_fault' arch/arm/kernel/built-in.o:arch/arm/kernel/signal.c:177: more undefined references to `might_fault' follow make: *** [vmlinux] Error 1
Regards, Axel
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