97 lines
3.1 KiB
Diff
97 lines
3.1 KiB
Diff
From 663bf081dc6737c7fcc68a7ca1169aca60fbf8e5 Mon Sep 17 00:00:00 2001
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From: Daniel P. Berrange <berrange@redhat.com>
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Date: Thu, 13 Aug 2009 11:56:31 +0100
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Subject: [PATCH] Make LXC / UML drivers robust against NUMA topology brokenness
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Some kernel versions expose broken NUMA topology for some machines.
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This causes the LXC/UML drivers to fail to start. QEMU driver was
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already fixed for this problem
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* src/lxc_conf.c: Log and ignore failure to populate NUMA info
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* src/uml_conf.c: Log and ignore failure to populate NUMA info
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* src/capabilities.c: Reset nnumaCell to 0 after freeing
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(cherry picked from commit 19bac57b26c2d46ac8a7601158f210f34acdceac)
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Fedora-patch: libvirt-0.7.0-numa-ignore-fail.patch
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---
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src/capabilities.c | 1 +
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src/lxc_conf.c | 12 ++++++++++--
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src/uml_conf.c | 11 +++++++++--
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3 files changed, 20 insertions(+), 4 deletions(-)
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diff --git a/src/capabilities.c b/src/capabilities.c
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index c6766b6..193a9fe 100644
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--- a/src/capabilities.c
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+++ b/src/capabilities.c
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@@ -139,6 +139,7 @@ virCapabilitiesFreeNUMAInfo(virCapsPtr caps)
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for (i = 0 ; i < caps->host.nnumaCell ; i++)
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virCapabilitiesFreeHostNUMACell(caps->host.numaCell[i]);
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VIR_FREE(caps->host.numaCell);
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+ caps->host.nnumaCell = 0;
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}
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/**
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diff --git a/src/lxc_conf.c b/src/lxc_conf.c
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index d06a024..fef60ba 100644
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--- a/src/lxc_conf.c
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+++ b/src/lxc_conf.c
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@@ -30,6 +30,8 @@
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#include "lxc_conf.h"
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#include "nodeinfo.h"
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#include "virterror_internal.h"
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+#include "logging.h"
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+
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#define VIR_FROM_THIS VIR_FROM_LXC
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@@ -46,8 +48,14 @@ virCapsPtr lxcCapsInit(void)
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0, 0)) == NULL)
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goto no_memory;
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- if (nodeCapsInitNUMA(caps) < 0)
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- goto no_memory;
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+ /* Some machines have problematic NUMA toplogy causing
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+ * unexpected failures. We don't want to break the QEMU
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+ * driver in this scenario, so log errors & carry on
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+ */
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+ if (nodeCapsInitNUMA(caps) < 0) {
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+ virCapabilitiesFreeNUMAInfo(caps);
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+ VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities");
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+ }
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/* XXX shouldn't 'borrow' KVM's prefix */
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virCapabilitiesSetMacPrefix(caps, (unsigned char []){ 0x52, 0x54, 0x00 });
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diff --git a/src/uml_conf.c b/src/uml_conf.c
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index 48e05a8..4f756d4 100644
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--- a/src/uml_conf.c
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+++ b/src/uml_conf.c
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@@ -45,6 +45,7 @@
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#include "nodeinfo.h"
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#include "verify.h"
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#include "bridge.h"
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+#include "logging.h"
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#define VIR_FROM_THIS VIR_FROM_UML
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@@ -63,8 +64,14 @@ virCapsPtr umlCapsInit(void) {
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0, 0)) == NULL)
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goto no_memory;
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- if (nodeCapsInitNUMA(caps) < 0)
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- goto no_memory;
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+ /* Some machines have problematic NUMA toplogy causing
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+ * unexpected failures. We don't want to break the QEMU
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+ * driver in this scenario, so log errors & carry on
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+ */
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+ if (nodeCapsInitNUMA(caps) < 0) {
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+ virCapabilitiesFreeNUMAInfo(caps);
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+ VIR_WARN0("Failed to query host NUMA topology, disabling NUMA capabilities");
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+ }
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if ((guest = virCapabilitiesAddGuest(caps,
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"uml",
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--
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1.6.2.5
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