On Wednesday 10 November 2004 17:14, David Brownell wrote:
> I looked at two of those dmesg logs and found several
> different errors:
>
>  - Something killing EHCI right after it started up.
>    I've not seen that with ALI myself, but some other
>    folk seem to have that problem (mostly with ALI).

I see. The lockup definately happens on both EHCI, UHCI and OHCI, but this 
issue may be a seperate one. 

>  - The usb-storage device seems to have spontaneously
>    disconnected itself.  Those problems seem to be
>    getting a lot of reports lately; it's unclear why.

Can I do something to help track this down? I really have no idea either, but 
maybe the (el cheapo) controller does something a little out-of-standard?

>  - Yet another version of the problems SCSI has with
>    disconnecting devices.  Given the spontaneous
>    disconnect, this is trouble.

Indeed. 

I just tried inserting the very same external case on my notebook (running 
2.6.8-rc1 UP), and it was fine. I plugged the usb connector in and out of my 
notebook as fast as I could, and it still wouldn't crash. Yet, on my server 
(dual AMD SMP) that would be a sure way to kill it. It seems like an SMP-only 
issue, at least to be. 

>  - Some bogus diagnostics on non-error situations.

To do with having a cheap controller, or just random spoutings from the 
driver?

> I think the last two issues are better in current BK
> kernels (SCSI and bogus diagnostics).  As for the
> first two, nobody's yet provided any clues as to
> what's going on.

I'd be happy to help, if only I knew how :-)

And btw, 2.6.10-rc1 seems a little better, although the lockups still come at 
some point (maybe not on first unplug, but then on second... race?)

> - Dave
>
> p.s. Cool, you're using a very recent version of
>    "usbutils"!  More folk should be that current.

Thanks :)

(although, it's just standard Sarge goodness. thanks to Aurelien Jarno of the 
Debian project)

-- 
Regards,
Christian Iversen


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