# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1275645001 -3600
# Node ID 96e0b0506051015770e946ad911a6d3ed12888ab
# Parent d68b0e4c378bf45015405aa053e8b07e786c46f7
x86: Suppress warnings about spurious pagefaults
RHEL4 guests take a fair number of spurious pagefaults on Nehalem; no
need to report each one of them at XENLOG_WARNING.
Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
xen-unstable changeset: 21514:88932ba626fe
xen-unstable date: Fri Jun 04 10:04:30 2010 +0100
---
xen/arch/x86/traps.c | 18 +-----------------
1 files changed, 1 insertion(+), 17 deletions(-)
diff -r d68b0e4c378b -r 96e0b0506051 xen/arch/x86/traps.c
--- a/xen/arch/x86/traps.c Fri Jun 04 10:49:43 2010 +0100
+++ b/xen/arch/x86/traps.c Fri Jun 04 10:50:01 2010 +0100
@@ -1169,10 +1169,7 @@ static int __spurious_page_fault(
(l2e_get_flags(l2e) & disallowed_flags) )
return 0;
if ( l2e_get_flags(l2e) & _PAGE_PSE )
- {
- l1e = l1e_empty(); /* define before use in debug tracing */
- goto spurious;
- }
+ return 1;
l1t = map_domain_page(mfn);
l1e = l1e_read_atomic(&l1t[l1_table_offset(addr)]);
@@ -1182,19 +1179,6 @@ static int __spurious_page_fault(
(l1e_get_flags(l1e) & disallowed_flags) )
return 0;
- spurious:
- dprintk(XENLOG_WARNING, "Spurious fault in domain %u:%u "
- "at addr %lx, e/c %04x\n",
- current->domain->domain_id, current->vcpu_id,
- addr, error_code);
-#if CONFIG_PAGING_LEVELS >= 4
- dprintk(XENLOG_WARNING, " l4e = %"PRIpte"\n", l4e_get_intpte(l4e));
-#endif
-#if CONFIG_PAGING_LEVELS >= 3
- dprintk(XENLOG_WARNING, " l3e = %"PRIpte"\n", l3e_get_intpte(l3e));
-#endif
- dprintk(XENLOG_WARNING, " l2e = %"PRIpte"\n", l2e_get_intpte(l2e));
- dprintk(XENLOG_WARNING, " l1e = %"PRIpte"\n", l1e_get_intpte(l1e));
return 1;
}
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