Re: [PATCH] remove LOCK_SECTION from x86_64 spin_lock asm

From: Andrew Morton
Date: Wed Sep 15 2004 - 16:49:23 EST


Zwane Mwaikambo <zwane@xxxxxxxxxxx> wrote:
>
> William spotted this stray bit, LOCK_SECTION isn't used anymore on x86_64.

btw, Ingo and I were scratching heads over an x86_64 oops in curent -linus
trees.

If you enable profiling and frame pointers, profile_pc() goes splat
dereferencing the `regs' argument when it decides that the pc refers to a
lock section. Ingo said `regs' had a value of 0x2, iirc. Consider this a
bug report ;)
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