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    SubjectRe: swsusp intermittent failures in 2.6.15-rc3-mm1
    Date
    Hi,

    On Friday, 2 of December 2005 01:55, Pavel Machek wrote:
    > > > My Thinkpad X40 (1.25 GB, ipw2200) has had fairly reliable swsusp since
    > > > 2.6.13 or thereabouts, and as recently as 2.6.15-rc1-mm1 I had about 20
    > > > successful suspend/resume cycles. But now that I'm running
    > > > 2.6.15-rc3-mm1 I'm seeing intermittent failures like this:
    > >
    > > Thanks a lot for the report.
    > >
    > > The problem is apparently caused by my recent patch intended to speed up
    > > suspend. Could you please apply the appended debug patch, try to reproduce
    > > the problem and send full dmesg output back to me?
    > >
    > > Index: linux-2.6.15-rc3-mm1/kernel/power/swsusp.c
    > > ===================================================================
    > > --- linux-2.6.15-rc3-mm1.orig/kernel/power/swsusp.c 2005-12-01 22:13:17.000000000 +0100
    > > +++ linux-2.6.15-rc3-mm1/kernel/power/swsusp.c 2005-12-01 22:24:56.000000000 +0100
    > > @@ -635,12 +635,18 @@
    > > printk("Shrinking memory... ");
    > > do {
    > > #ifdef FAST_FREE
    > > - tmp = count_data_pages() + count_highmem_pages();
    > > + tmp = count_data_pages();
    > > + printk("Data pages: %ld\n", tmp);
    > > + tmp += count_highmem_pages();
    >
    > You need at least count_data_pages() + 2*count_highmem_pages() free
    > pages (in lowmem).

    Do you mean a separate page is needed for each kmalloc() in
    save_highmem_zone()?

    Rafael


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