Messages in this thread | | | Date | Tue, 10 Apr 2012 09:43:12 +0400 | From | Konstantin Khlebnikov <> | Subject | Re: [PATCH] mm: sync rss-counters at the end of exit_mm() |
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KAMEZAWA Hiroyuki wrote: > (2012/04/10 5:03), Konstantin Khlebnikov wrote: > >> On task's exit do_exit() calls sync_mm_rss() but this is not enough, >> there can be page-faults after this point, for example exit_mm() -> >> mm_release() -> put_user() (for processing tsk->clear_child_tid). >> Thus there may be some rss-counters delta in current->rss_stat.
I had to mention it in comment:
This should fix warnings: BUG: Bad rss-counter state mm:ffff88020813c380 idx:1 val:-1 BUG: Bad rss-counter state mm:ffff88020813c380 idx:2 val:1
>> >> Signed-off-by: Konstantin Khlebnikov<khlebnikov@openvz.org> >> Reported-by: Markus Trippelsdorf<markus@trippelsdorf.de> >> Cc: Hugh Dickins<hughd@google.com> >> Cc: KAMEZAWA Hiroyuki<kamezawa.hiroyu@jp.fujitsu.com> > > Reviewed-by: KAMEZAWA Hiroyuki<kamezawa.hiroyu@jp.fujitsu.com> > > Does this fix recent issue reported ? >
I hope so.
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