Re: bus_dmamap_sync() for uhci(4)

[Michael Lorenz <macallan%NetBSD.org@localhost>]

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Hello,

On Jun 14, 2008, at 08:32, Manuel Bouyer wrote:
> On Sat, Jun 14, 2008 at 10:46:41AM +0900, Izumi Tsutsui wrote:
> > bouyer%antioche.eu.org@localhost wrote:
> >
> > > AFAIK it's there, line 2658. I see it it the patch I posted too ...
> > > Or did you mean something else ?
> >
> > Ah, maybe I checked a wrong file or lines. Sorry for noise.
> >
> > Anyway I'll test it on cobalt with later..
>
> thanks !
> Here's my latest patch. In addition to the previous, it fixes a  
> possible
> race between the controller and host when removing TDs from a queue.
> With this, my test on umodem has been running for more than 36 hours
> without issues, where it would hit a "host controller process  
> error" within
> max. 12 hours before. I'll let it running until monday.

Here's what it did on my O2:
- - the USB-IDE bridge was occasionally identified as full speed device  
but it's high speed, usually when booting cold with the disk plugged  
in. Unplugging it and plugging it into a different port usually got  
it attached to ehci.
- - the disk survived half an hour bonnie++ on both ehci and uhci  
without any errors from the kernel, so you fixed at least the HBA  
errors.
Writes are still screwy though:
- - newfs fails to create a root directory on both ehci and uhci. fsck  
created it when forced to check the filesystem
- - interrupting bonnie++, unmounting and running fsck -f yields many,  
many errors while fsck claims the filesystem is clean. Running fsck - 
f again still gives errors, even when the filesystem was mounted with  
- -o sync or -o softdep and fsck claimed to have fixed all errors. I  
think it's USB-related because the O2's SCSI disks show no such  
behaviour - everything works fine there.

have fun
Michael

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