Red Hat Bugzilla – Bug 101746
Kudzu freezes if hardware has been removed
Last modified: 2014-03-16 22:37:56 EDT
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User-Agent: Mozilla/5.0 Galeon/1.2.7 (X11; Linux i686; U;) Gecko/20030131
Description of problem:
While helping with a kernel bug I had to boot with the "nousb" parm. This
disabled my USB mouse. When boot reached hardware detection it froze.
It happens if I boot at runlevel 5 and also at level 3.
The box didn't react to ctral-alt-del (in the level 3 boot).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install on a box who has an USB mouse
2. Boot with "nousb" in the command line thus letting the mouse out
Actual Results: Box froze.
Is the reason you're booting with nousb is because USB blows up the kernel?
Loading USB modules when ACPI is enabled freezes the kernel. The person who is
iinvestigating the problem wanted dmesg ouput for a boot without ACPI and for
one with ACPI. The later requires disabling USB, that is how I stumbled upon
the kudzu problem.
See bug 101519 for details.
I discovered that this is not a kudzu problem but a kernel problem: with
full ACPI (ie without pci=noacpi) the kernel freezes when I start Kudzu
from the command line (ie I cannot switch consoles, browse upwards and
CTRL-ALT-DEL does not work)