(Apologies if this was discussed before on this list - I'm not sub- scribed, and the search facilities at sf.net are somewhat limited.)
I've run into problems on dual Xeon systems (2.4 GHz) built around an Intel SE7500CW2 board. The board is equipped with an Intel E7500 chipset. The problems have manifested with a number of RedHat Linux kernels, and still do so with the most recent 2.4.20-20smp for i686 (kernel-smp-2.4.20-20.7.i686.rpm from the RedHat updates area for 7.3).
They show up when the BIOS option 'Legacy USB support' is set to enabled. (I need this setting, as the machines do not have internal floppy or CD-ROM drives, and occasionally they need to be booted from USB devices.) The kernel boots fine, then init starts to walk through rc.sysinit and runs a 'modprobe usb-uhci'. In about one out of two cases, this hangs the machine; only the reset button or larger hammers are able to revive it. In other cases it works just fine. I've not established any clear evidence yet what is different between the two cases, but I'm sure I've seen many hangs when trying to boot the system entirely unattended.
In case it adds useful information, /proc/pci shows two USB hubs somewhat like Intel Corp. 82801CA/CAM USB (Hub #1) (rev 2).
All hints welcome...
Cheers,
Helge
---------------------------------------------------------------------------- Helge MEINHARD CERN, IT division, CH-1211 Geneve 23, Switzerland Phone: +41 22 76-76031, Fax: +41 22 76-73100 E-mail: [EMAIL PROTECTED]
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