Messages in this thread | | | Date | Wed, 12 Mar 2003 13:50:18 +1300 | From | Nigel Cunningham <> | Subject | Re: Free pages leaking in 2.5.64? |
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Hi.
Thanks for the reply. I hadn't looked at the hot/cold stuff before. I sussed it out this morning and added a condition to the test for refilling the pcp arrays, stopping them from being refilled during a suspend/resume cycle. Now everything works fine in that area for me. I'll check that there aren't any other calls to refill the pcp arrays, so I can be sure it will work with interrupts enabled and whenever smp support is added to swsusp.
Now I just have to get the image written and read back and switch from using page flags to dynamically allocated bitmaps, as I said I would.
Thanks again for the reply and regards,
Nigel
On Wed, 2003-03-12 at 13:25, Andrew Morton wrote: > Nigel Cunningham <ncunningham@clear.net.nz> wrote: > > > > Hi all. > > > > I've come across the following problem in 2.5.64. Here's example output. > > The header is one page - all messages only have a single call to > > get_zeroed_page between the printings and the same code works as > > nr_free_pages() does not account for the pages in the per-cpu head arrays. > > You can make the numbers look right via drain_local_pages(), but that is only > 100% reliable on uniprocessor with interrupts disabled. >
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