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SubjectRe: ext2 on a CD-RW
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On Fri, 2004-01-02 at 02:30, Peter Osterlund wrote:

> The packet writing code has the restriction that a bio must not span a
> packet boundary. (A packet is 32*2048 bytes.) If the page when mapped
> to disk starts 2kb before a packet boundary, merge_bvec_fn therefore
> returns 2048, which is less than len, which is 4096 if the whole page
> is mapped, so the bio_add_page() call fails.

devicemapper has similar restrictions for raid0 format; in that case
it's device-mappers job to split the page/bio. Just as it is UDF's task
to do the same I suspect...

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