Attachment 270051 Details for Bug 394581 – RHEL5 fix for this issue

[patch] RHEL5 fix for this issue

394581.patch (text/plain), 1.18 KB, created by Prarit Bhargava on 2007-11-27 18:48:50 UTC

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Creator: Prarit Bhargava

Created: 2007-11-27 18:48:50 UTC

Size: 1.18 KB

patch

obsolete

>Make lost tick warning use report_lost_ticks boot line option.
>
>Not upstream as upstream has moved beyond this codebase.
>
>Successfully compiled and tested by me and reporting customer.
>
>diff -urNp -X linux-2.6.18.x86_64/Documentation/dontdiff linux-2.6.18.x86_64.orig/arch/x86_64/kernel/time.c linux-2.6.18.x86_64/arch/x86_64/kernel/time.c
>--- linux-2.6.18.x86_64.orig/arch/x86_64/kernel/time.c	2007-11-27 10:19:47.000000000 -0500
>+++ linux-2.6.18.x86_64/arch/x86_64/kernel/time.c	2007-11-27 11:35:42.000000000 -0500
>@@ -331,7 +331,7 @@ static noinline void handle_lost_ticks(i
> 		print_symbol("rip %s)\n", regs->rip);
> 	}
> 
>-	if (lost_count == 1000 && !warned) {
>+	if (lost_count == 1000 && !warned && report_lost_ticks) {
> 		printk(KERN_WARNING "warning: many lost ticks.\n"
> 		       KERN_WARNING "Your time source seems to be instable or "
> 		   		"some driver is hogging interupts\n");
>@@ -648,7 +648,7 @@ static void cpufreq_delayed_get(void)
> 	static int warned;
> 	if (cpufreq_init && !cpufreq_delayed_issched) {
> 		cpufreq_delayed_issched = 1;
>-		if (!warned) {
>+		if (!warned && report_lost_ticks) {
> 			warned = 1;
> 			printk(KERN_DEBUG 
> 	"Losing some ticks... checking if CPU frequency changed.\n");

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Attachments on bug 394581: 266131 | 270051