Messages in this thread |  | | | Date | Fri, 2 Apr 2010 14:15:56 +0900 | | Subject | Re: [Question] race condition in mm/page_alloc.c regarding page->lru? | | From | Minchan Kim <> |
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On Fri, Apr 2, 2010 at 2:04 PM, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote: > On Fri, 2 Apr 2010 11:51:33 +0800 > TAO HU <tghk48@motorola.com> wrote: > >> 2 patches related to page_alloc.c were applied. >> Does anyone see a connection between the 2 patches and the panic? >> NOTE: the full patches are attached. >> > > I don't think there are relationship between patches and your panic. > > BTW, there is other case about the backlog rather than race in alloc_pages() > itself. If someone list_del(&page->lru) and the page is already freed, > you'll see the same backlog later. > Then, I doubt use-after-free case rather than complicated races.
It does make sense. Please, grep "page handling" by out-of-mainline code. If you found out, Please, post it.
-- Kind regards, Minchan Kim
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