Re: USB problem. 'irq 9: nobody cared!' (FIXED!)

[David Brownell]

Arkadiusz Miskiewicz wrote:
> On Thursday 25 of September 2003 21:11, David Brownell wrote:
>
>
> > The problem is that nobody has ever reported back with results from
> > testing any updated patch (see attachment, the guts of this being
> > from Alan Stern).  Sort of makes trying be a moot point ... :)
>
> So I'm the first one? ;)

Since then I got mixed reports -- not sure I trust them.


> Your patch (http://www.ussg.iu.edu/hypermail/linux/kernel/0309.3/0341.html) 
> FIXES things for me :-)

OK, that's good to hear.  There are two patches that seem
to work to various degrees.  This isn't the least conservative
fix (that'd be http://lkml.org/lkml/2003/9/29/74, returning
to that odd "reset before kicking bios off" sequence) but it's
good to know this also behaves.

- Dave



> This time I've tried 2.6.0test6 + all acpi patches from 2.6.0-mm1 (ls *acpi* 
> in akpm broken-out directory) + your patch and things work fine :)
> Note that 2.6.0+all acpi patches from 2.6.0-mm1 without your patch doesn't 
> work.
>
> [arekm@mobarm arekm]$ cat /proc/interrupts
>            CPU0
>   0:     698946          XT-PIC  timer
>   1:       1712          XT-PIC  i8042
>   2:          0          XT-PIC  cascade
>   3:       1561          XT-PIC  irda0
>   5:          4          XT-PIC  yenta
>   8:          0          XT-PIC  rtc
>   9:       2657          XT-PIC  acpi, eth0
>  10:      77708          XT-PIC  VIA686A, uhci-hcd, uhci-hcd
>  12:         18          XT-PIC  i8042
>  14:      12408          XT-PIC  ide0
>  15:         20          XT-PIC  ide1
> NMI:          0
> ERR:          0
>
> More details about my case in lkml archives and 
> http://bugme.osdl.org/show_bug.cgi?id=905
>
>
> > It's OK with me if you just revert the patch that adds a uhci_reset()
> > entry, but based on what I saw with EHCI and OHCI that'll just turn
> > up a different set of problems with certain BIOS configurations (none
> > of which I have) ... which will need to be fixed by having a UHCI
> > reset sequence that works correctly from _all_ initial states.
> >
> > - Dave


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