Red Hat Bugzilla – Bug 121964
USB broken in Kernel 2.6.5-1.327.
Last modified: 2007-11-30 17:10:41 EST
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.)
Steps to Reproduce:
1. Install FC3;
2. Enable USB support in the BIOS;
3. Let Kudzu to add USB modules;
4. Reboot the box;
System will not boot up, it will just stop at some point.
Details of my 2 systems what do not start up with USB support enabled
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
My system is an opteron with a via chipset.. motherboard is msi k8t
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.