Re: pl2303 + uhci oops

Re: pl2303 + uhci oops

[biker]

> > Using a pl2303-based usb->serial adaptor with the uhci driver always ends 
> > with a oops.
 
> Use 2.6.0-testX - it's fixed there:) I'm successfully using a GPS
> receiver based on a pl2303. This one if from www.lact.de (ebay'ed).
 
> MfG, JBG
 
This is good, but since 99% of the people is still using 2.4.x, it would be 
nice if it was fixed there too... ^_^
BTW, I'm very willing to help by providing any additional information that 
might be useful to solve the problem.

Take care,
Silla

Re: pl2303 + uhci oops

[Jan-Benedict Glaw]

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On Mon, 2003-09-01 18:27:50 +0200, biker@villagepeople.it <biker@villagepeople.it>
wrote in message <200309011827.50331.biker@villagepeople.it>:
> > > Using a pl2303-based usb->serial adaptor with the uhci driver always ends 
> > > with a oops.
>  
> > Use 2.6.0-testX - it's fixed there:) I'm successfully using a GPS
> > receiver based on a pl2303. This one if from www.lact.de (ebay'ed).
>  
> This is good, but since 99% of the people is still using 2.4.x, it would be 
> nice if it was fixed there too... ^_^
> BTW, I'm very willing to help by providing any additional information that 
> might be useful to solve the problem.

Well, it seems to be a common problem to serial USB devices - if they
send data right after you close(), you oops... However, I'm no longer
looking into 2.4.x. 2.6.x works almost perfectly for me (I'll need to
work out some patches for better i386 support), but 2.6.x basically _is_
more painfree than 2.4.x ATM and IMHO. At least, for my configurations.

MfG, JBG

-- 
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier Bürger" | im Internet! |   im Irak!
      ret = do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

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Re: pl2303 + uhci oops

[Greg KH]

On Mon, Sep 01, 2003 at 02:00:08PM +0200, biker@villagepeople.it wrote:
> Hello everybody!
> Using a pl2303-based usb->serial adaptor with the uhci driver always ends with 
> a oops.

As has been already reported, this is a known bug, sorry.

And sorry, but I don't know of anyone backporting the fixes that are
needed for this to the 2.4 kernel from the changes made in 2.6.  See
the archives of this list, or linux-usb-devel or linux-usb-users for
more details about the oops and what changes need to be made for 2.4.

greg k-h
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On Mon, Sep 01, 2003 at 02:00:08PM +0200, biker@villagepeople.it wrote:
> Hello everybody!
> Using a pl2303-based usb->serial adaptor with the uhci driver always ends with 
> a oops.

As has been already reported, this is a known bug, sorry.

And sorry, but I don't know of anyone backporting the fixes that are
needed for this to the 2.4 kernel from the changes made in 2.6.  See
the archives of this list, or linux-usb-devel or linux-usb-users for
more details about the oops and what changes need to be made for 2.4.

greg k-h

Re: pl2303 + uhci oops

[Jan-Benedict Glaw]

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On Mon, 2003-09-01 14:00:08 +0200, biker@villagepeople.it <biker@villagepeople.it>
wrote in message <200309011400.08914.biker@villagepeople.it>:
> Using a pl2303-based usb->serial adaptor with the uhci driver always ends with 
> a oops.

Use 2.6.0-testX - it's fixed there:) I'm successfully using a GPS
receiver based on a pl2303. This one if from www.lact.de (ebay'ed).

MfG, JBG

-- 
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier Bürger" | im Internet! |   im Irak!
      ret = do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));

[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]

pl2303 + uhci oops

[biker]

Hello everybody!
Using a pl2303-based usb->serial adaptor with the uhci driver always ends with 
a oops.
Usually, the first serial "session" works fine, but as soon as minicom or any 
other program (kpilot, for example) drops the connection the kernel oopses.
I've been able to reproduce the problem with three different kernels 
(2.4.20-21-22) and two different hardware platform. The first is a Thinkpad 
R40 (Chipset i845, Pentium 4, USB 2.0) and the second is a desktop (KT266A, 
AthlonXP, USB 1.1).
Note that the adaptor works perfectly if the usb-uhci driver is used instead.

Since all the data required to debug the oops take up too much space to be 
included here, I conveniently posted them on my web site in two directories, 
one for the intel machine and the other for the amd.

http://www.villagepeople.it/oops/   (It's just a directory listing, no images, 
banners, redirects or anything else)

Hope this helps.

-Silla