On 3/19/07, Pekka Enberg <[EMAIL PROTECTED]> wrote:
You can see that mempool_free is passing a NULL pointer to
kmem_cache_free() which doesn't handle it properly. The NULL pointer
comes from bio_free() where ->bi_io_vec is NULL because nr_iovecs
passed to bio_alloc_bioset() was zero.
The question is, why is nr_pages zero in scsi_req_map_sg()?
Note that the following patch I posted only addresses the part where
slab is clearly failing here:
http://lkml.org/lkml/2007/3/19/42
So, while it should fix the oops, there might be a bug lurking in the
SCSI or block layer still.
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