In article <linux.kernel.000101bf9ac5$e859d760$0100000a@youwant.to>,
David Schwartz <davids@webmaster.com> wrote:
>
>> One would assume the kernel always maintains at least 1
>> page for its own
>> paging purposes. So I touch my swapped out page. The kernel
>> reads my page into
>> the 'last page', and immediately pages out some other page,
>> regaining its "last
>> page". Repeat as necessary. It's a memory thrashing situation,
>> but not fatal.
>
> Fine, until some process touches a COW page and then the one spare page is
>gone.
No, it will never be gone; If a process needs another page and there's
nothing left but the last page, that page request will fail.
____
david parsons \bi/ As, presumably, will the process.
\/
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This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:30 EST