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[IA64] Stop bogus NMI & softlockup warnings in ia64 show_mem 

When dumping memory via sysrq-m it is possible to take a bogus NMI watchdog
or softlockup watchdog because the dump can take a long time on big memory
systems.

Occasionally tickle the watchdog when doing the dump.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Prarit Bhargava 2007-08-22 14:34:38 -04:00 committed by Tony Luck
parent 6e9de18120
commit 99a19cf1c0
2 changed files with 6 additions and 0 deletions
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3
arch/ia64/mm/contig.c
View File

@ -17,6 +17,7 @@
#include <linux/bootmem.h>
#include <linux/efi.h>
#include <linux/mm.h>
#include <linux/nmi.h>
#include <linux/swap.h>
#include <asm/meminit.h>
@ -56,6 +57,8 @@ void show_mem(void)
present = pgdat->node_present_pages;
for(i = 0; i < pgdat->node_spanned_pages; i++) {
struct page *page;
if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
touch_nmi_watchdog();
if (pfn_valid(pgdat->node_start_pfn + i))
page = pfn_to_page(pgdat->node_start_pfn + i);
else {

3
arch/ia64/mm/discontig.c
View File

@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/nmi.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/acpi.h>
@ -533,6 +534,8 @@ void show_mem(void)
present = pgdat->node_present_pages;
for(i = 0; i < pgdat->node_spanned_pages; i++) {
struct page *page;
if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
touch_nmi_watchdog();
if (pfn_valid(pgdat->node_start_pfn + i))
page = pfn_to_page(pgdat->node_start_pfn + i);
else {