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    SubjectRe: [-mm patch] i386: enable 4k stacks by default
    Date
    On Wed, 4 Jan 2006 15:51:38 +0100, Adrian Bunk <bunk@stusta.de> wrote:

    >This patch enables 4k stacks by default.
    >
    >4k stacks have become a well-tested feature used fore a long time in
    >Fedora and even in RHEL 4.
    >
    >There are no known problems in in-kernel code with 4k stacks still
    >present after Neil's patch that went into -mm nearly two months ago.
    >
    >Defaulting to 4k stacks in -mm kernel will give some more testing
    >coverage and should show whether there are really no problems left.
    >
    >Keeping the option for now should make the people happy who want to use
    >the experimental -mm kernel but don't trust the well-tested 4k stacks.
    >
    >
    >Signed-off-by: Adrian Bunk <bunk@stusta.de>
    >
    >--- linux-2.6.15-rc5-mm3-full/arch/i386/Kconfig.debug.old 2006-01-04 11:43:55.000000000 +0100
    >+++ linux-2.6.15-rc5-mm3-full/arch/i386/Kconfig.debug 2006-01-04 11:44:14.000000000 +0100
    >@@ -53,8 +53,8 @@
    > If in doubt, say "N".
    >
    > config 4KSTACKS
    >- bool "Use 4Kb for kernel stacks instead of 8Kb"
    >- depends on DEBUG_KERNEL
    >+ bool "Use 4Kb for kernel stacks instead of 8Kb" if DEBUG_KERNEL
    >+ default y
    > help
    > If you say Y here the kernel will use a 4Kb stacksize for the
    > kernel stack attached to each process/thread. This facilitates

    Perhaps mention 4k + 4k stacks, the separate irq stacks used with 4k option?

    Grant.
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