Con Kolivas <kernel@kolivas.org> wrote:
>
> I thought I'd give the cfq another run since some change has made it into this
> patch and got these BUGs together (note, preempt enabled and UP +IDE):
>
> ------------[ cut here ]------------
> kernel BUG at drivers/block/ll_rw_blk.c:1580!
> invalid operand: 0000 [#1]
> PREEMPT
> CPU: 0
> EIP: 0060:[<40257ff5>] Not tainted VLI
> EFLAGS: 00010097
> EIP is at __blk_put_request+0x5d/0x108
That's
BUG_ON(!list_empty(&req->queuelist));
I'm not aware of anyone testing CFQ much at present.
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