On Wed, 21 Jun 2000, Mike Galbraith wrote:
>On Wed, 21 Jun 2000, Mike Galbraith wrote:
>
>> I also encountered this exact oops (once).. no added patches here.
>
>And today, I encountered the same oops in ac22.riel.. doesn't seem to
>be classzone specific.
>
The Oops is generated by the diff that I posted to l-k to fix the fs
corruption generated by the bogus destroy_buffers() (and such diff is
included also in the non-classzone ac22).
The Oops means that there's a page cache with an overlapped buffer that
belongs to a kdev_t B_FREE, that should never happen as far I can tell.
The previous code was wrongly also handling such case as if it would be
legal to have a buffer overlapped to the page cache that belongs to the
freepool. We have instead to trap the case where a buffer belongs to
B_FREE otherwise we'll add to the freelist a buffer that lives on the page
cache and bad corruption will happen.
Which filesystem are you using (only ext2?).
Andrea
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