ACPI + USB issues? (was: USB umass problem on 5.2-release)

I made my USB flash drive to work by either

1. Disabling ACPI
   or
2. Enabling parallel port in BIOS (it was disabled for a long time)

Although my original problem is solved, but given the fact that everything worked
in 5.1, I would guess there's some ACPI problems in 5.2.

Is there some kind of 'ACPI debugging how-to' around?
I'd like to dig this issue in, as far as I can...

Thanks,
   Denis


Denis Antrushin wrote:
> 
> Hi,
> 
> This kind of questions was asked many times before, but after reading 
> all that
> postings I still cannot fix things by myself, so I'm asking for help 
> here...
> 
> I have USB Flash Drive (Pretec i-Disk 128Mb), and it was working OK with 
> my home
> 5.1 freebsd machine (ASUS A7M266 motherboard with AMD 761/VIA xxxx)
> Recently I decided to upgrade to 5.2-release and whoops... I've got that 
> nasty
> messages:
> 
> umass0: BBB reset failed, TIMEOUT
> umass0: BBB bulk-in clear stall failed, TIMEOUT
> umass0: BBB bulk-out clear stall failed, TIMEOUT
> 
> Well, I digged archives and read about USB quirks, so I added 
> DA_OLD_QUIRKS to
> kernel config and recompiled... no effect. I played a bit with quirks in 
> umass.c,
> but this ended up with hangs and panics :-)
> 
> But, the this flash drive works OK on my work machine, which is 
> 5.2-release as
> well (but is ASUS P4BGL MB with Intel 845GL chipset), so I guess, this 
> is not
> device itself, but USB controller/hub/... issue?
> 
> I attach dmesg output (with CAMDEBUG options in kernel, and w/o USB 
> quirks) and
> my kernel config
> 
> What should I do to fix that problem?
> Any help is highly appretiated!
> 
> Thanks,
>     Denis
>