* [TRIVIAL] rediffed chatty printk running SMP kernel with 1 CPU
@ 2003-09-04 3:23 Rusty Trivial Russell
0 siblings, 0 replies; only message in thread
From: Rusty Trivial Russell @ 2003-09-04 3:23 UTC (permalink / raw)
To: torvalds, linux-kernel
From: Nick Piggin <piggin@cyberone.com.au>
This removes the reporting of the "error", and makes the output
consistent with running the same kernel on an SMP box.
Against test4
--- trivial-2.6.0-test4-bk5/arch/i386/kernel/smpboot.c.orig 2003-09-04 13:01:54.000000000 +1000
+++ trivial-2.6.0-test4-bk5/arch/i386/kernel/smpboot.c 2003-09-04 13:01:54.000000000 +1000
@@ -937,6 +937,7 @@
static void __init smp_boot_cpus(unsigned int max_cpus)
{
int apicid, cpu, bit, kicked;
+ unsigned long bogosum = 0;
/*
* Setup boot CPU information
@@ -1048,26 +1049,25 @@
/*
* Allow the user to impress friends.
*/
-
Dprintk("Before bogomips.\n");
- if (!cpucount) {
- printk(KERN_ERR "Error: only one processor found.\n");
- } else {
- unsigned long bogosum = 0;
- for (cpu = 0; cpu < NR_CPUS; cpu++)
- if (cpu_isset(cpu, cpu_callout_map))
- bogosum += cpu_data[cpu].loops_per_jiffy;
- printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
- cpucount+1,
- bogosum/(500000/HZ),
- (bogosum/(5000/HZ))%100);
- Dprintk("Before bogocount - setting activated=1.\n");
- }
+ for (cpu = 0; cpu < NR_CPUS; cpu++)
+ if (cpu_isset(cpu, cpu_callout_map))
+ bogosum += cpu_data[cpu].loops_per_jiffy;
+ printk(KERN_INFO
+ "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
+ cpucount+1,
+ bogosum/(500000/HZ),
+ (bogosum/(5000/HZ))%100);
+
+ Dprintk("Before bogocount - setting activated=1.\n");
if (smp_b_stepping)
printk(KERN_WARNING "WARNING: SMP operation may be unreliable with B stepping processors.\n");
- /* Don't taint if we are running SMP kernel on a single non-MP approved Athlon */
+ /*
+ * Don't taint if we are running SMP kernel on a single non-MP
+ * approved Athlon
+ */
if (tainted & TAINT_UNSAFE_SMP) {
if (cpucount)
printk (KERN_INFO "WARNING: This combination of AMD processors is not suitable for SMP.\n");
--
What is this? http://www.kernel.org/pub/linux/kernel/people/rusty/trivial/
Don't blame me: the Monkey is driving
File: Nick Piggin <piggin@cyberone.com.au>: [PATCH] rediffed chatty printk running SMP kernel with 1 CPU
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