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    SubjectRe: [1/2] 2.6.22-rc5: known regressions with patches
    Arjan van de Ven wrote:
    > --- linux-2.6.22-rc5/arch/i386/Kconfig.debug.org 2007-06-20 22:20:30.000000000 -0700
    > +++ linux-2.6.22-rc5/arch/i386/Kconfig.debug 2007-06-20 22:20:55.000000000 -0700
    > @@ -49,7 +49,6 @@ config DEBUG_PAGEALLOC
    > config DEBUG_RODATA
    > bool "Write protect kernel read-only data structures"
    > depends on DEBUG_KERNEL
    > - depends on !KPROBES # temporary for 2.6.22
    > help
    > Mark the kernel read-only data as write-protected in the pagetables,
    > in order to catch accidental (and incorrect) writes to such const
    > --- linux-2.6.22-rc5/arch/x86_64/Kconfig.debug.org 2007-06-20 22:20:28.000000000 -0700
    > +++ linux-2.6.22-rc5/arch/x86_64/Kconfig.debug 2007-06-20 22:20:44.000000000 -0700
    > @@ -9,7 +9,6 @@ source "lib/Kconfig.debug"
    > config DEBUG_RODATA
    > bool "Write protect kernel read-only data structures"
    > depends on DEBUG_KERNEL
    > - depends on !KPROBES # temporary for 2.6.22
    > help
    > Mark the kernel read-only data as write-protected in the pagetables,
    > in order to catch accidental (and incorrect) writes to such const data.

    Shouldn't we add something to the help texts?

    + This option also marks kernel text pages as write-protected,
    + except if you enable KPROBES.

    CMIIW.

    As mentioned elsewhere in this thread, replacing CONFIG_DEBUG_RODATA by
    CONFIG_WRITEPROTECT_RODATA and CONFIG_WRITEPROTECT_TEXT might be a
    better idea. The latter should be mutual exclusive with CONFIG_KPROBES.
    --
    Stefan Richter
    -=====-=-=== -==- =-=-=
    http://arcgraph.de/sr/
    -
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