Description of problem: Enabling USB support will render systems to state where these are unable to boot up. Version-Release number of selected component (if applicable): (This is vanilla FC2 Test3, no updates.) kernel-2.6.5-1.327 How reproducible: Always. Steps to Reproduce: 1. Install FC3; 2. Enable USB support in the BIOS; 3. Let Kudzu to add USB modules; 4. Reboot the box; Actual results: System will not boot up, it will just stop at some point. Expected results: No stoppage. Additional info: Details of my 2 systems what do not start up with USB support enabled are available: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121857 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121859
One more: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=121933
This problem doesn't seem to be present on Intel hardware (Compal CL50 AKA Ordi Enduro CL50 Intel Centriono laptop).
I'm having this problem as well, the system doesn't actually hang, but when usb modules are loaded cpu stays at 100% with most of it in hi (hardware interupt? .. I'm not familiar with the new fields in top) This happens with any kernel build 327 or later. I have a 2.5.3 kernel build that worked (doesn't now because some of the dev updates won't work with the older kernel) fine on the same machine. I tried to debug this a little.. I'm not getting much in the way of useful info from the kernel log. But I did try removing all the usb devices from the machine to see if that was the issue, and removing the modprobe.conf and hwconf files to besure it wasn't them.. neither had an effect, if the usb modules load, the system goes 100% cpu utilization. My system is an opteron with a via chipset.. motherboard is msi k8t master2-far Oh.. and when the usb-modules are loaded, nautilus consitently segfaults. Right now I'm running with no usb modules loaded, which is kinda hard since I have a usb mouse.. need to find an adapter : )
After a significate number of reboots, I believe that in my case this was a resource conflict issue, but I'm not clear on why it didn't appear prior to the 2.6.5 kernels. I ended up disabling both comm ports and the printer port in bios, and now it boots fine. One thing that could be effecting this is that I'm having to boot with acpi=off in order for my sata drive to work,.. I also have an adaptec scsi card, and it seems to be claiming the same irq as my usb controllers.
A bios upgrade has allowed me to turn back on my comm and printer ports... all seems to be well for me now.
People seeing this might want to try booting with "acpi=off" as an added boot option
"acpi=off" didn't fix it for me, only way to get the machine up was not to load usb modules.
kernel-2.6.5-1.358 seem not to have this issue.
I was too quick to comment about kernel-2.6.5-1.358 - the same issue is still present.
is the errata kernel any better ?
With kernel-2.6.6-1.427 my system will come up and I can even access USB flash disk. So, at least on this box the USB is working again.
Marshall, if you have problems still, please open a new bug. Closing.