Hi,

It seems that UML does not run properly when given too much memory.
After a few tries, there seem to be a limit somewhere below 1.5GB
memory. The actual limit appears to be moving with some parameters
(disks, root, initrd, ...).
With my few tests:
  size=1408M seems to work fine
  size=1536M fails

Is it something known? Is there a known maximum safe value?


Nicolas Boullis

PS: using debian etch on both the host and the guest, with
linux-image-2.6.18-4-686-bigmem 2.6.18.dfsg.1-12 on the host, and
user-mode-linux 2.6.18-1um-2

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