Messages in this thread | | | Date | Fri, 19 Nov 2004 19:55:10 -0800 | From | William Lee Irwin III <> | Subject | Re: page fault scalability patch V11 [0/7]: overview |
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William Lee Irwin III wrote: >> Unprivileged triggers for full-tasklist scans are NMI oops material.
On Sat, Nov 20, 2004 at 02:37:04PM +1100, Nick Piggin wrote: > Hang on, let's come back to this... > We already have unprivileged do-for-each-thread triggers in the proc > code. It's in do_task_stat, even. Rss reporting would basically just > involve one extra addition within that loop. > So... hmm, I can't see a problem with it.
/proc/ triggering NMI oopses was a persistent problem even before that code was merged. I've not bothered testing it as it at best aggravates it.
And thread groups can share mm's. do_for_each_thread() won't suffice.
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