The Thu, 10 Feb 2005 12:17:05 -0500 (EST)
Alan Stern <[EMAIL PROTECTED]> wrote:

> > > It's not clear from what you said; did any of the patches you
> > > used include this one:
> > > 
> > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=110797162426830&w=2
> > > 
> > No, I did the tests before this patch appeared on linux-usb-devel
> > (I had watched about a month of archives to see if I could add
> > another relevant patch, I might have missed it if it had already
> > been posted before, though).
> 
> I asked because it's possible the contents of that patch were
> present in one of the ones you used, even though the patch itself
> was just posted a couple of days ago.
> 
I tried yesterday a 2.6.10 and a 2.6.11-rc3-bk7 with this patch (and
ehci into the kernel), it didn't work either. But I didn't really
expect it would work.

> That won't work very well.  When you load the EHCI driver, the root
> device will become inaccessible.  From that point on, pretty much
> everything will fail.
> Is there a Linux distribution that can run entirely from a ramdisk?
> 
After second thought, I remembered the machine can netboot : thus I
can do the tests as you ask. I had setup a netboot for another machine
a while ago, I guess I can setup one for this machine, it should not
be too hard.

> You don't have to capture debug-level messages to a logfile.  You
> can instead use dmesg to retrieve them directly from the kernel's
> log buffer.
> [...]
> I believe it.  Try to concentrate on the part of the log
> corresponding to when errors start to occur, if you can.
> 
OK, thanks for the tips, I will do the tests with full debugging
(shall I activate kernel debugging as well ?) and ehci as a module,
for the 2.6.10 and the 2.6.11-rc3-bk this week-end, with some
additional patches (which I'll describe more precisely when sending
the debug logs).
I think I will do the tests with and without the additional usb2 hub. 

Have a nice week-end,
Samuel Colin


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