With this patch, my PII Xeon 4 cpu system reaches the
state of "Powered Down" and stops. (Running Slackware Linux 10.2
with 2.6.14.3 from kernel.org)
At this point, I can power off or hit the reset button
to restart.
Thank you for the patch.
Jeff
On Tue, 6 Dec 2005, Zwane Mwaikambo wrote:
On Tue, 6 Dec 2005, Clemens Koller wrote:
Hello, Zwane!
From what i hear it's this issue;
http://bugzilla.kernel.org/show_bug.cgi?id=5203
Yes it seems to be the same issue.
But who is Eric, mentioned in bugzilla? :-]
If it makes sense I can test his patch while/before he is pushing
it upstream.
Eric is 'Eric Biederman', Jeff tested his patch but there appears to be a
failure case when there is no power management callback installed. Could
you please test the following patch?
diff -r 3815424104b0 arch/i386/kernel/reboot.c
--- a/arch/i386/kernel/reboot.c Sat Dec 3 07:09:38 2005
+++ b/arch/i386/kernel/reboot.c Mon Dec 5 00:44:37 2005
@@ -359,6 +359,10 @@
if (pm_power_off)
pm_power_off();
-}
-
-
+
+ local_irq_disable();
+ if (cpu_data[0].hlt_works_ok)
+ while (1) halt();
+ while (1);
+}
+
diff -r 3815424104b0 arch/x86_64/kernel/reboot.c
--- a/arch/x86_64/kernel/reboot.c Sat Dec 3 07:09:38 2005
+++ b/arch/x86_64/kernel/reboot.c Mon Dec 5 00:44:37 2005
@@ -159,5 +159,9 @@
}
if (pm_power_off)
pm_power_off();
+
+ local_irq_disable();
+ while (1)
+ halt();
}
-
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