I added a USB 2.0 interface card (ADS Technologies USB Turbo 2.0) to my AMD Athlon box running Red Hat 9 and its stock 2.4.20-8 kernel. I also thought it would be nice to have an external USB 2.0 hard drive for backups and what have you and purchased some gear for that purpose as well (ADS Technologies USB 2.0 Hard Drive Kit and Western Digital 120 GB IDE Hard Drive). Red Hat detected the card and modprobed the ehci-hcd driver with no problems.

The problem I had was that every time I plugged the external drive into one of the USB 2.0 ports, everything froze on my machine, and I had to power cycle to reboot. I could connect the external hard drive to one of the preexisting USB 1.1 ports, and everything worked fine. I was also able to partition the external drive and create an ext2 file system on the it (yes, it took quite awhile). After partitioning and making the file system, the drive mounted (RW) just fine on the USB 1.1 port, but still froze up the computer when plugged into the USB 2.0 port, before I could even try mounting it.

On advice from Thomas Schorpp on the usb-users list, I reinstalled the USB 2.0 card from the last PCI slot to the first one. After that, everything worked fine.

Is this problem something someone on the usb-devel list is interested in fixing or knowing about? The motherboard in the computer is the KT7A-RAID and it uses the VIA Apollo KT133A chipset.

Tim




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