[Bug 88746] Re: ehci_hcd module causes I/O errors in USB 2.0 devices

Troy R. dsm.iv.tr at gmail.com
Thu Dec 11 16:00:44 UTC 2008

> Hope this helps.  For those with devices that _mount_ but gag out and
> crash ehci_hcd after transferring, please state such and locate the
> appropriate device ID in your lsusb output.  Maybe that will help a dev
> / hacker locate the problem.  I'll donate my card reader to the cause...

@Troy S.:
Sure thing. This is the relevant lsusb line for my controller, on an ATI
SB600 mobile board:

Bus 004 Device 002: ID 05e3:0606 Genesys Logic, Inc. USB 2.0 Hub /
D-Link DUB-H4 USB 2.0 Hub

With ehci_hcd loaded, devices _mount, but choke out even after applying
the max_sectors tweak_. I then have to blacklist ehci_hcd and reboot to
restore USB 1 functionality.

Offhand, I believe we've seen this "Genesys" name before, earlier in the

Full lsusb output attached, just in case.

** Attachment added: "lsusb.log"

ehci_hcd module causes I/O errors in USB 2.0 devices
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