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authorMark Broadbent <markb@wetlettuce.com>2004-08-22 22:48:50 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2004-08-22 22:48:50 -0700
commit7c0fe360f6e4dde05d7153f13887e8bca7ca34aa (patch)
tree73365743e0a4862be7c5f95907eebacfd4c67f7a /Documentation
parent432818b9f7a0d521a059acdfa7c554692cfc4daa (diff)
downloadhistory-7c0fe360f6e4dde05d7153f13887e8bca7ca34aa.tar.gz
[PATCH] IO-APIC debug message reduction
The APIC and IO-APIC code is very verbose on startup especially on SMP machines. This patch allows the verbosity of the APIC code to be controlled through the boot-time option apic= using three levels: quiet, verbose and debug. The default level is quiet. Signed-off-by: Mark Broadbent <markb@wetlettuce.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 34f1d33b17c3a0..3066ab3c0271ec 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -189,6 +189,11 @@ running once the system is up.
Disable APC CPU standby support. SPARCstation-Fox does
not play well with APC CPU idle - disable it if you have
APC and your system crashes randomly.
+
+ apic= [APIC,i386] Change the output verbosity whilst booting
+ Format: { quiet (default) | verbose | debug }
+ Change the amount of debugging information output
+ when initialising the APIC and IO-APIC components.
apm= [APM] Advanced Power Management
See header of arch/i386/kernel/apm.c.