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    SubjectRe: [PATCH] proc: revert to show stack information in /proc/{pid}/status
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    Am Freitag, den 01.01.2010, 16:49 +0100 schrieb Andi Kleen:
    > KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> writes:
    > >
    > > Anyway, I revert the regresstion patch as other regression patches. if you really want
    > > this feature, you have three options.
    > >
    > > 1. create new /proc file instead to use /proc/pid/status.
    > > 2. improve performance until typical use-case don't notice regression.
    > > 3. change ps and other /proc related userland implementation and resubmit this patch.
    > >
    > > But even if you choose anything, You have to test both its functional and performance
    > > _before_ submitting kernel patch.
    >
    >
    > 4. Leave everything alone (revert all the commits) and use a ptrace
    > based tool to get this information when you need it.
    >

    Without the stack_start and the fix for the bogus x86_64 KSTP_ESP it
    wouldn't be possible.




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