Hi!
> > > > I got this error when I'm hacking suspend-to-disk on my IA64 box
> > > with 1G
> > > > memory.
> > > > (Pagesize 64K,MemTotal: 1002112 kB ,MemFree: 395008 kB)
> > > > Do you plan to improve it by compressing pages ?
> > > >
> > > > swsusp: Need to copy 9878 pages
> > > > suspend: (pages needed: 9878 + 512 free: 6486)
> > > > swsusp: Not enough free pages: Have 6486
> > > I have not seen one of those for a long time (on i386). Does this
> > > happen
> > > every time?
> >
> > So far, yes. I just tried 2 times.
>
> always. (I check that swap dev is on)
>
> Sometimes, my ia32 laptop free 0 pages too.
> I think we should always free some pages
> from various caches.
Try this hack... it is basically mm problem I don't know how to fix,
but this seems to help.
Pavel
Index: kernel/power/disk.c
===================================================================
--- 805a02ec2bcff3671d7b1e701bd1981ad2fa196c/kernel/power/disk.c (mode:100644)
+++ ecd8559cc08319bb16a42aac06cf7d664157643a/kernel/power/disk.c (mode:100644)
@@ -88,23 +92,25 @@
static void free_some_memory(void)
{
- unsigned int i = 0;
- unsigned int tmp;
- unsigned long pages = 0;
- char *p = "-\\|/";
-
- printk("Freeing memory... ");
- while ((tmp = shrink_all_memory(10000))) {
- pages += tmp;
- printk("\b%c", p[i]);
- i++;
- if (i > 3)
- i = 0;
+ int i;
+ for (i=0; i<5; i++) {
+ int i = 0, tmp;
+ long pages = 0;
+ char *p = "-\\|/";
+
+ printk("Freeing memory... ");
+ while ((tmp = shrink_all_memory(10000))) {
+ pages += tmp;
+ printk("\b%c", p[i]);
+ i++;
+ if (i > 3)
+ i = 0;
+ }
+ printk("\bdone (%li pages freed)\n", pages);
+ msleep_interruptible(200);
}
- printk("\bdone (%li pages freed)\n", pages);
}
-
static inline void platform_finish(void)
{
if (pm_disk_mode == PM_DISK_PLATFORM) {
