Re: 2.4.0-test10-pre3:Oops in mm/filemap.c:filemap_write_pa

From: Alexander Viro (viro@math.psu.edu)
Date: Mon Oct 23 2000 - 20:51:25 EST


On Mon, 23 Oct 2000, Linus Torvalds wrote:

> Also, the fact that Petr didn't see anything trigger in nopage() makes me
> nervous again. Even if the problem happened during read-ahead, it should
> have gotten into the address space only through nopage. Maybe there is
> some vma that isn't added to the right inode VM list - so that we end up
> missing part of the vmtruncate() stuff?
>
> Al, any ideas?

Just one: let's slow down a bit and try to write down the rules. Close to
release or not, let's understand WTF happens in that part of VM before
deciding on the choice of band-aids/fixes. Frankly, right now I don't feel
that area - too many changes during the last month. So I'm going to sit
down and read it through. IMO it's worth the delay - I have a gut feeling
that band-aids are going to cost more.

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