Red Hat Bugzilla – Bug 107871
SMP kernel boots with both processors, but loses one!?
Last modified: 2007-04-18 12:58:44 EDT
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Description of problem:
Dual Athlon 2400+ machine boots with both processors and runs fine for weeks.
At some point a CPU gets dropped. After which /proc/cpuinfo and top both only
report a single processor.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot SMP kernel on dual Athlon XP machine.
2. Verify both CPUs up and running, then use machine for weeks.
3. One day notice that only one processor is shown in top and /proc/cpuinfo.
Actual Results: Machine goes from SMP to uni without reboot.
Expected Results: Machine should stay SMP.
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/