Messages in this thread | | | Date | Mon, 22 Apr 2013 14:22:18 -0700 | From | Kent Overstreet <> | Subject | Re: NULL pointer due to malformed bcache bio |
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On Wed, Apr 10, 2013 at 04:54:40PM -0400, Mike Snitzer wrote: > Hey, > > So DM core clearly needs to be more defensive about the possibility for > a NULL return from bio_alloc_bioset() given I'm hitting a NULL pointer > in DM's alloc_tio() because nr_iovecs=512. bio_alloc_bioset()'s call to > bvec_alloc() only supports nr_iovecs up to BIO_MAX_PAGES (256).
I have a fix for this queued up in my bcache-for-upstream, if you want to check and make sure it works.
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