Messages in this thread | | | Date | Thu, 18 Nov 2010 00:38:59 +0100 | From | Pavel Machek <> | Subject | Re: 2.6.37-rc1+: hibernate regression, claims not enough swap space |
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Hi!
> > > This is not how it works now. We preallocate memory to create memory pressure, > > > so if image_size is 0, we need to preallocate until we run out of pages that > > > can be freed, which means OOM. > > > > That's bad, right? Instead of killing > > I'm not sure what you mean.
I meant "instead of failing hibernation, you get OOM -- killing random processes".
> > Anyway, it does not work at all. > > > > root@amd:~# echo 300000000 > /sys/power/image_size > > root@amd:~# echo disk > /sys/power/state > > -su: echo: write error: No space left on device > > > > (And dmesg full of failed allocations). > > > > I can write 400M there, and it fails, too. > > Well, in that case your swap is smaller than the requested image size, isn't it?
No, swap is
pavel@amd:~/misc$ cat /proc/swaps Filename Type Size Used Priority /dev/sda1 partition 779148 0 -1
... 700M.
> There's a check in there that should catch that and it apparently doesn't work. > > Do you have that dmesg by chance?
dmesg is useless -- it is full of backtraces :-(. ACPI allocations fail. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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