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SubjectRe: [CFT] delayed allocation and multipage I/O patches for 2.5.6.

--On Monday, March 18, 2002 12:14:27 -0800 Andrew Morton <> wrote:

> One other possible explanation is to do with radix-tree pagecache.
> It has to allocate memory to add nodes to the tree. When these
> allocations start failing due to out-of-memory, the VM will keep
> on calling swap_out() a trillion times without noticing that it
> didn't work out. But if this happened, yo would have seen a huge
> number of "0-order allocation failed" messages.

Yes, I did see a huge number of those messages. It also died
on 2.5.6 clean though. I chalked it up to 2.5 instability.
Will test again when things calm down. Any chance you will
backport to 2.4?

Glad to help.


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