Red Hat Bugzilla – Bug 105350
Lots of messages "pc_keyb: controller jammed (0xFF)." displayed during kernel loading
Last modified: 2005-10-31 17:00:50 EST
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Description of problem:
Lots of messages "pc_keyb: controller jammed (0xFF)." displayed during kernel
This problem was found on really legacy free system(Without SuperIO, Keyboard
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Take a legacy free system(Without keyboard controller)
2.Put Red Hat Linux cdrom in CD-ROM drive and boot from it
3.Lots of proble messages displayed
Actual Results: Lots of messages "pc_keyb: controller jammed (0xFF)."
Expected Results: No error messages should be displayed.
This might caused by Kernel doesn't check the keyboard controller whether
exist or not, If keyboard controller is not exist, kernel should skip all
keyboard controller access and don't treat is as error. ALL Port 60/64 access
should be emulated or skipped.
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases,
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/