Re: aborting sbp2 command...

Hi,

On Mon, Oct 06, 2003 at 12:45:46AM +0200, Stefan Richter wrote:
> > or is this normal behaviour that is meant to be fixed with serialize_io?
>
> no.
>
> The serialize_io parameter is meant to be used for debugging and
> as a workaround for buggy SBP-2 targets.

Would enabling the verbose debugging and posting these logs help
debugging the sbp2 driver? Or at least, determine wheter this is a
hardware problem or not?

> BTW, there are two Mapower SBP-2 devices listed at the hardware
> compatibility list at linux1394.org. The entry for the H51 does
> not specify any required sbp2 load parameters, while the entry
> for a different model states serialize_io=1 and max_speed=0 as
> mandatory. However the need especially for the latter parameter
> indicates serious hardware problems, like bad cables or noisy
> boards.

max_speed=0 is not needed for this device, it works fine serialize_io=1
so far.

Now I found out that the H51 Series has three diffrent Models:
Firewire-only (H51F1), USB 2.0 (H51U2) and USB 2.0/Firewire Combo
(H51C1). They share a common Case, but it is likely that there are
diffrent Chipsets. I'm using the H51C1.

The other one (J51) has a diffrent case and also these three Models
(plus three SCSI Variants). Great.

> Another comment on our hardware compatibility list: A qualified
> entry should mention the exact kernel or driver revision used
> together with the device as well as as much version information
> about the device itself as the user can gather. One and the same
> device model may come to market with different board or firmware
> revisions. We have frequently postings on this list where people
> find hardware not working like they expected after they read the
> compatibility list.

So I should submit this device to the compatibility list?

Ciao,
Christoph

-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
mailing list Linux1394-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux1394-user
Received on Mon Oct 6 01:48:49 2003