Re: Re: h5550 hangs on usbnet w/ hh36.9

On Mon, May 10, 2004 at 08:02:26PM -0400, Etienne Dube wrote:
> Are you in any way bringing up the usb0 interface on your PC at some
> point?

usb0 on the PC should be brought up when the hotplug event happens. I
could disable that and do it by hand instead.

> In fact, I had a similar problem with an older kernel (hh36) some time ago.
> The iPAQ froze, but only after bringing up usb0 on my PC, and it used to
> happen about one time out of three. In my case, hh36.9 appears to be much
> more stable, I get this problem about one time out of ten. I don't know yet
> if it's related to what you are experiencing.

Well, for me it is 1 out of 1.

> I'd like to help solving these problems with usbnet on the h5550. Could you
> tell me what Linux distro, kernel version and USB host controller chip (or
> motherboard/chipset model) you have on your PC? And are you getting any
> kernel messages on the PC side? (try "cat /proc/kmsg" on your PC before
> connecting the iPAQ). Anything particular in your setup? (USB hubs, long
> cables...)

Nothing special about the setup. There are two built-in hubs to the PC.
I will try the /proc/kmsg trick when I get a chance to try again.

The kernel version is the latest mdk 9.2 kernel rpm (2.4.22-28 most
likely). The usb host controller is an intel 82801 ehci controller. It
is onboard the dell precision 450 which is my main desktop.

Thanks for the help.

E

> > OK, you and the other guy got me through my fear. But it is still dead.
> > If I have the device booted and I plugged the usb cable into the host
> > computer the h5550 hangs.
> >
> > If I do a soft reset (joypad reset) and set the output console to the
> > serial port the h5550 boots the kernel and the kernel hangs on:
> > Using
> > /lib/modules/2.4.19-rmk6-pxa1-hh36/kernel/arch/arm/mach-pxa/h5400-pcibuf.o
> > Using /lib/modules/2.4.19-rmk6-pxa1-hh36/kernel/drivers/usb/usb-ohci.o
> > Using
> > /lib/modules/2.4.19-rmk6-pxa1-hh36/kernel/drivers/usb/usb-ohci-h5400.o
> > usb-eth: device configured, go go go.
> > usb-ohci.c: USB OHCI at membase 0xcca1e000, IRQ 120
> > hc_alloc_ohci: dev=ffff5400 mem_base=cca1e000 dev_is_h5400=1
> > calling pci_pool_alloc
> > usb.c: new USB bus registered, assigned bus number 1
> > hub.c: USB hub found
> > hub.c: 2 ports detected
> > pxa_cs Using /lib/modules/2.4.19-rmk6-pxa1-hh36/pcmcia/pcmcia_core.o
> > Linux Kernel Card Services 3.1.22
> > options: [pm]
> > usb-eth: device configured, go go go.
> >
> > If I just leave the usb cable unplugged the device operates normally.
> > Although, w/out usbnet.
> >
> > E
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Erik Hovland
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