Messages in this thread | | | Date | Tue, 1 Aug 2006 15:02:59 +1000 | Subject | Re: [BLOCK] bh: Ensure bh fits within a page | From | Herbert Xu <> |
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On Mon, Jul 31, 2006 at 09:04:18PM -0700, Andrew Morton wrote: > > Could we have a more detailed description?
Sure, this particular instance is in journal_write_metadata_buffer where the bh may be constructed from kmalloc memory (search for the call to jbd_rep_kmalloc). Because the memory returned by kmalloc may straddle a page (when slab debugging is enabled that is), this causes a broken bh to be injected into submit_bh.
Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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