man .. very very good.
blockdev --getsz says 512.


On 3/29/06, Neil Brown [off-list ref] wrote:

On Wednesday March 29, raziebe@gmail.com wrote:

quoted

I was refering to bios reaching make_request in raid5.c .
I would be more precise.
I am dd'ing " dd if=/dev/md1 of=/dev/zero bs=1M count=1 skip=10"
I have added the following printk in make_request "printk ("%d:",bio->bi_size)"
I am getting sector sizes. 512:512:512:512:512....
I suppose they gathered in the elevator,
but still why so small ?

Odd.. When I try that I get 4096 repeatedly.
Which kernel are you using?
What does
   blockdev --getbsz /dev/md1
say?
Do you have a filesystem mounted on /dev/md1?  If so, what sort of
filesystem.

NeilBrown

--
Raz