On 12 Mar 2003, Arjan van de Ven wrote:
>
> and all vendors always ship -fno-frame-pointer kernels so far so those
> users are ok! Until recently there was no way to build a non
> -fno-frame-pointer kernel!
Not entirely true.
Even with the traditional -fomit-frame-pointer build, "sched.c" has always
been built with -fno-fomit-frame-pointer in order to get the correct
"wchan" of callers of schedule() and wait_on().
See kernel/Makefile for details.
So yes, old kernels (and CONFIG_FRAME_POINTER=n) have traditionally
avoided the bug _mostly_. But it could still bite us in some rather
important functions.
Linus
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This archive was generated by hypermail 2b29 : Sat Mar 15 2003 - 22:00:31 EST