Red Hat Bugzilla – Bug 107422
system locks up when writing to floppy (CPU_IDLE problem)
Last modified: 2007-04-18 12:58:32 EDT
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Description of problem: Kernels starting (at least) 2.4.20 turn CONFIG_APM_CPU_IDLE option on by default which causes ASUS P4S533-X and P4S533-MX motherboards to hang when writing to floppy. Actually the option help says that some machine may hang and probably it should not be on by default. Luckily I was able to fix that adding "apm=idle_threshold=100" to the kernel parameters without recompiling the kernel. It seems like on ASUS P4533 motherboards this option is unsafe so it must be turned off. Other way to make somehow these motherboards/BIOS blacklisted. Version-Release number of selected component (if applicable): kernel-2.4.20-20.9 How reproducible: Always Steps to Reproduce: 1. load 2.4.20 kernel or later on ASUS P4S533-X or P4S533-MX 2. try to do e.g. mkdosfs /dev/fd0 3. Actual Results: system hangs completely with no messages Expected Results: writing should be finished Additional info:
Same here. Happens with both redhat-9 (current errata) and fedora-1;-(
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 persists. 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/