Andi Kleen wrote:
On Thursday 19 April 2007 22:55:50 H. Peter Anvin wrote:
Andi Kleen wrote:
Is some version of this going in for 2.6.21, or is it not a real problem?
When it's only seen with Xen it's not a real problem right now.
It's not just seen only with Xen, though. It will affect all kernels in
a particular range of sizes, and we have ordinary kernels covering that
range (in fact, Xen hardly affects size in that way.)
Then we would have seen reports surely?
The critical size window is relatively small, though. The size of the
uncompressed kernel mod 4 MB must be above 3.75 MB or so. If you have
less than 1 GB RAM, the window is even smaller. This is strictly
configuration-dependent, and has nothing to do with Xen. It just so
happened that the first people to detect and diagnose it (as opposed to
just "it doesn't boot") were Xen people.
-hpa
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