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Red Hat Bugzilla – Attachment 216431 Details for
Bug 221612
ia64: show_mem() for sparsemem NUMA
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[patch]
backport
d5433b804efa.patch (text/plain), 2.01 KB, created by
George Beshers
on 2007-10-04 20:30:32 UTC
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Description:
backport
Filename:
MIME Type:
Creator:
George Beshers
Created:
2007-10-04 20:30:32 UTC
Size:
2.01 KB
patch
obsolete
> ># HG changeset patch ># User Prarit Bhargava <prarit@redhat.com> ># Date 1188640221 25200 ># Node ID d5433b804efa167fdc3aeba14ba97702dbe6941d ># Parent de441397d63950b0448be6b0bd5027af4ff49fff >[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> > >committer: Tony Luck <tony.luck@intel.com> > > >diff -purN linux.d/arch/ia64/mm/contig.c linux.e/arch/ia64/mm/contig.c >--- linux.d/arch/ia64/mm/contig.c 2007-10-02 14:24:17.000000000 -0400 >+++ linux.e/arch/ia64/mm/contig.c 2007-10-02 14:54:42.000000000 -0400 >@@ -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> >@@ -57,6 +58,8 @@ 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 { >diff -purN linux.d/arch/ia64/mm/discontig.c linux.e/arch/ia64/mm/discontig.c >--- linux.d/arch/ia64/mm/discontig.c 2007-10-02 14:23:48.000000000 -0400 >+++ linux.e/arch/ia64/mm/discontig.c 2007-10-02 14:54:42.000000000 -0400 >@@ -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> >@@ -561,6 +562,8 @@ 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 {
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