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    SubjectRe: x86: 4kstacks default

    * Andrew Morton <akpm@linux-foundation.org> wrote:

    > > config 4KSTACKS
    > > bool "Use 4Kb for kernel stacks instead of 8Kb"
    > > - depends on DEBUG_KERNEL
    > > depends on X86_32
    > > + default y
    >
    > This patch will cause kernels to crash.

    what mainline kernels crash and how will they crash? Fedora and other
    distros have had 4K stacks enabled for years:

    $ grep 4K /boot/config-2.6.24-9.fc9
    CONFIG_4KSTACKS=y

    and we've conducted tens of thousands of bootup tests with all sorts of
    drivers and kernel options enabled and have yet to see a single crash
    due to 4K stacks. So basically the kernel default just follows the
    common distro default now. (distros and users can still disable it)

    Ingo


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