Marcus Brinkmann <[EMAIL PROTECTED]> writes:

> BTW, Thomas, while we are chatting about pagers.  I remember Roland
> told me the thread explosion in the server is a known problem with
> the Mach virtual memory management.  Can you briefly wrap up an
> example for a typical behaviour that can cause it?  I have seen >
> 2000 threads in ext2fs, and I am at a loss how this can happen.
> Does it happen at page-out time?

Map a big region, start modifying pages.  Eventually you will trigger
pageout.  The kernel will now proceed to start paging things out: all
at once.

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