September 2018 - Devel - libvirt List Archives

[libvirt] Terminal input “udevadm trigger” command,then produce “nl_recv returned with error:No buffer space available”
by xiajidong＠cmss.chinamobile.com 11 Sep '18

11 Sep '18

Dear libvirt experts， I have add some patch as follow.this two patch add buffer size to avoid to produce “nl_recv returned with error:No buffer space available” 1. libvirt-nodedev-Increase-the-netlink-socket-buffer-size-to-t.patch 2. libvirt-util-increase-libnl-buffer-size.patch but as I set some configuration in /etc/libvirt/libvitd.conf as follows # Logging level: 4 errors, 3 warnings, 2 information, 1 debug log_level =2 # Multiple outputs can be defined, they just need to be separated by spaces. # e.g. to log all warnings and errors to syslog under the libvirtd ident: log_outputs="2:syslog:libvirtd" when I input “udevadm trigger” command [root@localhost ~]# vi /etc/libvirt/libvirtd.conf [root@localhost ~]# systemctl restart libvirtd [root@localhost ~]# udevadm trigger [root@localhost ~]# udevadm trigger [root@localhost ~]# udevadm trigger [root@localhost ~]# then will produce “nl_recv returned with error:No buffer space available” [root@localhost ~]# tail -f /var/log/messages | grep buffer Sep 2 22:44:00 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available Sep 2 23:11:33 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available Sep 2 23:11:45 localhost libvirtd: 4004: error : virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available So my question is: When input “udevadm trigger” in terminal, if setting log_level and log_outputs="2:syslog:libvirtd",how to avoid to produce “error virNetlinkEventCallback:699 : nl_recv returned with error: No buffer space available” log information? I am looking forward to your reply. _____ Best Regards, Jidong Xia China Mobile (Suzhou) Software Technology Company.cloud computing product department Tel: (+86) 18896726087 E-Mail：xiajidong(a)cmss.chinamobile.com <mailto:xiajidong@cmss.chinamobile.com>

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[libvirt] [PATCH] test: Remove possible infinite loop in virnetsockettest
by John Ferlan 11 Sep '18

11 Sep '18

Commit 39015a6f3 modified the test to be more reliable/realistic, but without checking the return status of virEventRunDefaultImpl it's possible that the test could run infinitely. Found by Coverity Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- tests/virnetsockettest.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/tests/virnetsockettest.c b/tests/virnetsockettest.c index cccb90d0be..490f720fd0 100644 --- a/tests/virnetsockettest.c +++ b/tests/virnetsockettest.c @@ -243,8 +243,13 @@ testSocketAccept(const void *opaque) &cdata) < 0) goto cleanup; - while (rsock == NULL) - virEventRunDefaultImpl(); + while (rsock == NULL) { + if (virEventRunDefaultImpl() < 0) { + VIR_WARN("Failed to run event loop: %s\n", + virGetLastErrorMessage()); + break; + } + } for (i = 0; i < nlsock; i++) { if (lsock[i] == rsock) { -- 2.17.1

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[libvirt] [PATCH] news: Mention Xen support for PM suspend and wakeup
by Jim Fehlig 11 Sep '18

11 Sep '18

Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- docs/news.xml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index b8bee35df0..9d16b2930b 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -35,6 +35,15 @@ <libvirt> <release version="v4.8.0" date="unreleased"> <section title="New features"> + <change> + <summary> + Xen: Support PM Suspend and Wakeup + </summary> + <description> + The libxl driver now supports the virDomainPMSuspendForDuration + and virDomainPMWakeup APIs. + </description> + </change> </section> <section title="Improvements"> <change> -- 2.18.0

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[libvirt] [PATCH 0/9] qemuxml2argvtest cleanups
by Ján Tomko 11 Sep '18

11 Sep '18

While looking at how slow this test has gotten, I found a lost test case, some redundancies. Thankfully, not running the HostModel functions twice helped, but there is still room for improvement: we spend a lot of time in the CPU driver comparing the same strings over and over again and with over 300 entries in virQEMUCaps enum, we can reduce some of these string comparisons in the future to cope with more and more QEMU versions being tested. Ján Tomko (9): tests: drop 'drive' from qemuxml2startup tests tests: add macro for dealing with exclusive flags tests: introduce macro for qemu XML->startup XML tests: only run startup XML tests if requested tests: report errors in QEMU XML->startup XML tests tests: drop redundant virQEMUCapsFilterByMachineType tests: do not mangle real qemu caps in xml2argvtest tests: turn skipLegacyCPUs into a flag qemu: remove unnecessary virQEMUCapsFreeHostCPUModel src/qemu/qemu_capabilities.c | 25 +------ src/qemu/qemu_capspriv.h | 5 -- tests/qemuxml2argvtest.c | 76 +++++++++++++--------- .../{disk-drive-shared.xml => disk-shared.xml} | 0 4 files changed, 49 insertions(+), 57 deletions(-) rename tests/qemuxml2startupxmloutdata/{disk-drive-shared.xml => disk-shared.xml} (100%) -- 2.16.4

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[libvirt] [PATCH] qemu: free SEV caps in virQEMUCapsDispose
by Ján Tomko 11 Sep '18

11 Sep '18

Commit 77f51ab5 started parsing an copying the SEV capabilities, but omitted the free call. Signed-off-by: Ján Tomko <jtomko(a)redhat.com> --- src/qemu/qemu_capabilities.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 08cf822b88..308f5602ca 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1662,6 +1662,8 @@ void virQEMUCapsDispose(void *obj) VIR_FREE(qemuCaps->gicCapabilities); + virSEVCapabilitiesFree(qemuCaps->sevCapabilities); + virQEMUCapsHostCPUDataClear(&qemuCaps->kvmCPU); virQEMUCapsHostCPUDataClear(&qemuCaps->tcgCPU); } -- 2.16.4

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[libvirt] [PATCH 0/2] Remove unnecessary/duplicated qemuAgentCheckError calls
by John Ferlan 11 Sep '18

11 Sep '18

Followup to review comments I made for recent agent series. John Ferlan (2): qemu: Remove duplicated qemuAgentCheckError qemu: Remove duplicated qemuAgentCheckError src/qemu/qemu_agent.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) -- 2.17.1

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[libvirt] [PATCHv4 0/2] Add virNetlinkNewLink helper for simplifying virNetDev*Create
by Shi Lei 11 Sep '18

11 Sep '18

v3 here: https://www.redhat.com/archives/libvir-list/2018-September/msg00233.html Diff from v3: This series make changes according to the comments from Erik and John. Shi Lei (2): util: netlink: Introduce virNetlinkNewLink helper to simplify virNetDev*Create util: netlink: Add wrapper macros to make virNetlinkNewLink more readable src/libvirt_private.syms | 1 + src/util/virnetdevbridge.c | 73 +++--------------------- src/util/virnetdevmacvlan.c | 110 +++++------------------------------ src/util/virnetlink.c | 111 ++++++++++++++++++++++++++++++++++++ src/util/virnetlink.h | 36 ++++++++++++ 5 files changed, 172 insertions(+), 159 deletions(-) -- 2.17.1

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[libvirt] [PATCH] add nodeset='all' and default for interleave mode
by Peng Hao 11 Sep '18

11 Sep '18

For interleave mode,sometimes we want to allocate mmeory regularly in all nodes on the host. But different hosts has different node number. So we add nodeset='all' for interleave mode and if nodeset=NULL default nodeset is 'all' for interleave mode. Signed-off-by: Peng Hao <peng.hao2(a)zte.com.cn> --- src/conf/numa_conf.c | 73 ++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 57 insertions(+), 16 deletions(-) diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c index 97a3ca4..de5fb9c 100644 --- a/src/conf/numa_conf.c +++ b/src/conf/numa_conf.c @@ -29,6 +29,10 @@ #include "virnuma.h" #include "virstring.h" +#if WITH_NUMACTL +#include <numa.h> +#endif + /* * Distance definitions defined Conform ACPI 2.0 SLIT. * See include/linux/topology.h @@ -66,6 +70,7 @@ typedef virDomainNumaNode *virDomainNumaNodePtr; struct _virDomainNuma { struct { bool specified; + bool allnode; virBitmapPtr nodeset; virDomainNumatuneMemMode mode; virDomainNumatunePlacement placement; @@ -259,13 +264,17 @@ virDomainNumatuneParseXML(virDomainNumaPtr numa, tmp = virXMLPropString(node, "nodeset"); if (tmp) { - if (virBitmapParse(tmp, &nodeset, VIR_DOMAIN_CPUMASK_LEN) < 0) - goto cleanup; - - if (virBitmapIsAllClear(nodeset)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("Invalid value of 'nodeset': %s"), tmp); - goto cleanup; + if (strcmp(tmp, "all") == 0) { + numa->memory.allnode = true; + } else { + if (virBitmapParse(tmp, &nodeset, VIR_DOMAIN_CPUMASK_LEN) < 0) + goto cleanup; + + if (virBitmapIsAllClear(nodeset)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Invalid value of 'nodeset': %s"), tmp); + goto cleanup; + } } VIR_FREE(tmp); @@ -319,10 +328,14 @@ virDomainNumatuneFormatXML(virBufferPtr buf, virBufferAsprintf(buf, "<memory mode='%s' ", tmp); if (numatune->memory.placement == VIR_DOMAIN_NUMATUNE_PLACEMENT_STATIC) { - if (!(nodeset = virBitmapFormat(numatune->memory.nodeset))) - return -1; - virBufferAsprintf(buf, "nodeset='%s'/>\n", nodeset); - VIR_FREE(nodeset); + if (numatune->memory.allnode == true) { + virBufferAsprintf(buf, "nodeset='all'/>\n"); + } else { + if (!(nodeset = virBitmapFormat(numatune->memory.nodeset))) + return -1; + virBufferAsprintf(buf, "nodeset='%s'/>\n", nodeset); + VIR_FREE(nodeset); + } } else if (numatune->memory.placement) { tmp = virDomainNumatunePlacementTypeToString(numatune->memory.placement); virBufferAsprintf(buf, "placement='%s'/>\n", tmp); @@ -497,6 +510,9 @@ virDomainNumatuneSet(virDomainNumaPtr numa, virBitmapPtr nodeset) { int ret = -1; + int i = 0, maxnode = 0; + virBitmapPtr bitmap = NULL; + /* No need to do anything in this case */ if (mode == -1 && placement == -1 && !nodeset) @@ -538,7 +554,7 @@ virDomainNumatuneSet(virDomainNumaPtr numa, } if (placement == VIR_DOMAIN_NUMATUNE_PLACEMENT_DEFAULT) { - if (numa->memory.nodeset || placement_static) + if (numa->memory.nodeset || placement_static || numa->memory.allnode) placement = VIR_DOMAIN_NUMATUNE_PLACEMENT_STATIC; else placement = VIR_DOMAIN_NUMATUNE_PLACEMENT_AUTO; @@ -546,10 +562,35 @@ virDomainNumatuneSet(virDomainNumaPtr numa, if (placement == VIR_DOMAIN_NUMATUNE_PLACEMENT_STATIC && !numa->memory.nodeset) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("nodeset for NUMA memory tuning must be set " - "if 'placement' is 'static'")); - goto cleanup; + if (mode != VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("nodeset for NUMA memory tuning must be set " + "if 'placement' is 'static'")); + goto cleanup; + } else { + /* default set all node if nodeset is NULL, when placement + * is static and mode is interleave. + */ + numa->memory.allnode = true; + } + } + + if (placement == VIR_DOMAIN_NUMATUNE_PLACEMENT_STATIC && + mode == VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE && + numa->memory.allnode) { + if ((bitmap = virBitmapNew(VIR_DOMAIN_CPUMASK_LEN)) == NULL) + goto cleanup; + virBitmapClearAll(bitmap); + maxnode = numa_max_node(); + for (i = 0; i <= maxnode; i++) { + if (virBitmapSetBit(bitmap, i) < 0) { + virBitmapFree(bitmap); + goto cleanup; + } + } + if (numa->memory.nodeset) + virBitmapFree(numa->memory.nodeset); + numa->memory.nodeset = bitmap; } /* setting nodeset when placement auto is invalid */ -- 1.8.3.1

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[libvirt] [PATCH] docs: Fix missing timestamp inside backingStore.
by Julio Faracco 11 Sep '18

11 Sep '18

All backingStore XML definitions have a XML tag with the timestamp. This timestamp is not defined insinde RNG volume storage schema and it is causing some problems to validate and check volume XMLs. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1594266 Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com> --- docs/schemas/storagevol.rng | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/schemas/storagevol.rng b/docs/schemas/storagevol.rng index 96d6b3e6d0..32aaa2784d 100644 --- a/docs/schemas/storagevol.rng +++ b/docs/schemas/storagevol.rng @@ -139,6 +139,7 @@ </element> <ref name='format'/> <ref name='permissions'/> + <ref name='timestamps'/> </interleave> </element> </define> -- 2.17.1

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[libvirt] [PATCH] qemu: fix deadlock if create qemuProcessReconnect thread failed
by Wang Yechao 11 Sep '18

11 Sep '18

qemuProcessReconnectHelper has hold the doms lock, if create qemuProcessReconnect thread failed, it will get the doms lock again to remove the dom from doms list. add obj->inReconnetCtx flag to avoid deadlock. Signed-off-by: Wang Yechao <wang.yechao255(a)zte.com.cn> --- src/conf/domain_conf.h | 1 + src/conf/virdomainobjlist.c | 6 ++++-- src/qemu/qemu_process.c | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index e30a4b2..5bc5771 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2608,6 +2608,7 @@ struct _virDomainObj { virDomainSnapshotObjPtr current_snapshot; bool hasManagedSave; + bool inReconnectCtx; void *privateData; void (*privateDataFreeFunc)(void *); diff --git a/src/conf/virdomainobjlist.c b/src/conf/virdomainobjlist.c index 805fe94..30300b4 100644 --- a/src/conf/virdomainobjlist.c +++ b/src/conf/virdomainobjlist.c @@ -397,11 +397,13 @@ virDomainObjListRemove(virDomainObjListPtr doms, dom->removing = true; virObjectRef(dom); virObjectUnlock(dom); - virObjectRWLockWrite(doms); + if (!dom->inReconnectCtx) + virObjectRWLockWrite(doms); virObjectLock(dom); virDomainObjListRemoveLocked(doms, dom); virObjectUnref(dom); - virObjectRWUnlock(doms); + if (!dom->inReconnectCtx) + virObjectRWUnlock(doms); } diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index eb9904b..8c30850 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -8029,6 +8029,7 @@ qemuProcessReconnectHelper(virDomainObjPtr obj, */ qemuProcessStop(src->driver, obj, VIR_DOMAIN_SHUTOFF_FAILED, QEMU_ASYNC_JOB_NONE, 0); + obj->inReconnectCtx = true; qemuDomainRemoveInactiveJob(src->driver, obj); virDomainObjEndAPI(&obj); -- 1.8.3.1

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