KOSAKI Motohiro wrote:
On Mon, Apr 30, 2012 at 7:29 AM, Konstantin Khlebnikov
<khlebnikov@xxxxxxxxxx> wrote:
This patch adds line "HWPoinson:<size> kB" into /proc/pid/smaps if
CONFIG_MEMORY_FAILURE=y and some HWPoison pages were found.
This may be useful for searching applications which use a broken memory.
I dislike "maybe useful" claim. If we don't know exact motivation of a feature,
we can't maintain them especially when a bugfix can't avoid ABI change.
Please write down exact use case.
I don't know how to exactly use this hw-poison stuff, but smaps suppose to
export state of ptes in vma. It seems to rational to show also hw-poisoned ptes,
since kernel has this feature and pte can be in hw-poisoned state.
and now everyone can easily find them:
# sudo grep HWPoison /proc/*/smaps
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