Messages in this thread | | | Date | Wed, 12 Mar 2003 15:24:57 +0000 | From | Arjan van de Ven <> | Subject | Re: 2.5.63 accesses below %esp (was: Re: ntfs OOPS (2.5.63)) |
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On Wed, Mar 12, 2003 at 07:20:39AM -0800, Linus Torvalds wrote: > > 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.
I know. And when the gcc bug was found (and fixed) we audited the disassembly of sched.o for this and it didn't get triggered by this bug. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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