bjh21 3e6dc8178c Ensure that uvmexp.freemin is above the kernel reserved-page count.
When it wasn't (which could happen on a 4Mb machine with 32kb pages),
uvm_pagealloc_strat could refuse to allocate user memory, while the pagedaemon
didn't think it was worth freeing any more, resulting in the system seizing up.
2000-08-20 10:24:14 +00:00
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