Messages in this thread | | | Subject | Re: ext2 on a CD-RW | From | Arjan van de Ven <> | Date | Fri, 02 Jan 2004 10:06:52 +0100 |
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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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