Red Hat Bugzilla – Bug 145217
ehci_hcd "fatal error; HC died" error at startup
Last modified: 2015-01-04 17:15:38 EST
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Description of problem:
Certain PCI/PCMCIA-to-USB2.0 cards with NEC chipset cannot be used with ehci, it dies and the systems uses the slow ohci.
Errors like the following can be found in the log:
> hub 5-0:1.0: USB hub found
> hub 5-0:1.0: 2 ports detected
> ehci_hcd 0000:03:00.2: fatal error
> ehci_hcd 0000:03:00.2: HC died; cleaning up
> ohci_hcd 0000:03:00.1: wakeup
> usb 5-1: new full speed USB device using address 2
> usb 5-1: not running at top speed; connect to a high speed hub
Kernel's bugzilla has a submitted patch for 2.6.11 which fixes the problem when rebuilding kernel-2.6.10-1.741_FC3.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. plugin a USB2.0 card with NEC chipset
2. plugin e.g. USB2.0 HDD
Actual Results: ehci dies, fallback to "slow" ohci.
Expected Results: ehci should be used for full speed.
The new kernel 2.6.11-1.14_FC3 fixes the problem as expected.