On Wed, 25 Feb 2004, Malcolm Blaney wrote: > > All my 'magic sysrq' keys become useless when the device is connected. > I'll attatch the output requested below, but there is nothing in > /proc/bus/usb/devices. The while loop you suggested to check the file > prints nothing but 'No such file or directory' until the system hangs.
Which means, that you didn't mount /proc/bus/usb # mount -tusbfs none /proc/bus/usb or # mount -tusbdevfs none /proc/bus/usb with older kernels. Or in /etc/fstab none /proc/bus/usb usbfs noauto 0 0 or none /proc/bus/usb usbdevfs noauto 0 0 respectively. > You might like to know that the whole setup works fine with a 2.4.18 > kernel! But only works with the uhci driver, _not_ usb-uhci. The problem > is there when using the 2.4.19 kernel (and others since then..) - I > noticed there were quite a few changes made at that time, USB 2.0 added > etc.. What is that device, that hangs your board? Do you have hotplug enabled? If so, could you disable it, and see if the system still hangs immediately as you plug in the device, or first when you insert the driver-module or run some user-space program (e.g. mount a usb-disk, or whatever)? > > Hmm, again non-working VIA set_next_interrupt()? > Is this comment worth looking into? I'll have a look for it, but could > you tell me what you mean, or when it was fixed? No, perhaps, not:-) That problem doesn't hang the complete system, AFAIK. Another thing you could try would be disabling ACPI... Guennadi --- Guennadi Liakhovetski ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
