Re: [PATCH] Re: innd mmap bug in 2.4.0-test12

From: Daniel Phillips (
Date: Thu Dec 28 2000 - 18:50:19 EST

Linus Torvalds wrote:
> Ok, pre-5 should have all the same places you found already fixed, but
> please do give it some heavy-duty testing to make sure there isn't
> anything hidden..

I've beaten on it fairly heavily with the BUG in there as you suggested,
with no problems.

This kernel even seems a little faster:

      Test machine: 64 meg, 500 Mhz K6, IDE, Ext2, Blocksize=4K
      Test: dbench 48

      pre4 9.5 MB/sec 11 min 6 secs
      pre5 10.8 MB/sec 9 min 48 secs

I think it would be an awfully good idea to let the BUG out for mass

+ if (PageDirty(page)) BUG();
        page->mapping = NULL;

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