Re: [QUICKLIST 1/5] Quicklists for page table pages V4

From: William Lee Irwin III
Date: Fri Mar 23 2007 - 10:57:33 EST


On Thu, Mar 22, 2007 at 11:48:48PM -0800, Andrew Morton wrote:
>> afacit that two-year-old, totally-different patch has nothing to do with my
>> repeatedly-asked question. It appears to be consolidating three separate
>> quicklist allocators into one common implementation.
>> In an attempt to answer my own question (and hence to justify the retention
>> of this custom allocator) I did this:
> [... patch changing allocator alloc()/free() to bare page allocations ...]
>> but it crashes early in the page allocator (i386) and I don't see why. It
>> makes me wonder if we have a use-after-free which is hidden by the presence
>> of the quicklist buffering or something.

On Fri, Mar 23, 2007 at 04:29:20AM -0700, William Lee Irwin III wrote:
> Sorry I flubbed the first message. Anyway this does mean something is
> seriously wrong and needs to be debugged. Looking into it now.

I know what's happening. I just need to catch the culprit.


-- wli
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