Messages in this thread |  | | Date | Wed, 7 Feb 2001 02:06:27 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait |
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On Tue, 6 Feb 2001, Jeff V. Merkey wrote:
> > I don't see anything that would break doing this, in fact you can > > do this as long as the buffers are all at least a multiple of the > > block size. All the drivers I've inspected handle this fine, noone > > assumes that rq->bh->b_size is the same in all the buffers attached > > to the request. This includes SCSI (scsi_lib.c builds sg tables), > > IDE, and the Compaq array + Mylex driver. This mostly leaves the > > "old-style" drivers using CURRENT etc, the kernel helpers for these > > handle it as well. > > > > So I would appreciate pointers to these devices that break so we > > can inspect them. > > > > -- > > Jens Axboe > > Adaptec drivers had an oops. Also, AIC7XXX also had some oops with it.
most likely some coding error on your side. buffer-size mismatches should show up as filesystem corruption or random DMA scribble, not in-driver oopses.
Ingo
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