On Tue, Sep 15, 2009 at 12:05:30PM +0200, Sébastien Bernard wrote:
>> I was able to reproduce the hang with your originally posted config.
>>
>> It only triggers when CONFIG_PROM_CONSOLE is enabled
>>
> Very good news.
> I had a lot of trouble because of this.
> I had to disable it for initcall_debug to work, but then, any kernel
> patched or not was working.
> I thought I messed up between patches and built kernels.
> I realize now that I had the explanation under my nose.
> Duh....
I had just recompiled and booted my SMP kernel without the dreaded
PROM_CONSOLE, and yet the machine got stuck in the same place in the
NMI code. I then removed initcall_debug, and it still doesn't work.
What am I missing?!
The .config diff between the working UP kernel and this one is:
--- /boot/config.old 2009-09-14 12:08:04.000000000 +0000
+++ /boot/config 2009-09-16 07:44:16.000000000 +0000
@@ -4 +4 @@
-# Mon Sep 14 11:47:09 2009
+# Tue Sep 15 09:59:03 2009
@@ -35 +35 @@
-CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
@@ -113,0 +114 @@
+CONFIG_USE_GENERIC_SMP_HELPERS=y
@@ -129,0 +131 @@
+CONFIG_STOP_MACHINE=y
@@ -152 +154,2 @@
-# CONFIG_SMP is not set
+CONFIG_SMP=y
+CONFIG_NR_CPUS=32
@@ -163,0 +167 @@
+CONFIG_SPARC64_SMP=y
@@ -166,0 +171 @@
+# CONFIG_HOTPLUG_CPU is not set
@@ -172,0 +178 @@
+# CONFIG_NUMA is not set
@@ -193,0 +200,2 @@
+CONFIG_SCHED_SMT=y
+CONFIG_SCHED_MC=y
@@ -1141 +1149 @@
-CONFIG_PROM_CONSOLE=y
+# CONFIG_PROM_CONSOLE is not set
--
2. That which causes joy or happiness.
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