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[libvirt] error: internal error unable to execute QEMU command 'getfd': No file descriptor supplied via SCM_RIGHTS



Hi,

 

I am getting the following error when I try to migrate VM on my network using virsh migrate:

         error : qemuMonitorJSONCheckError:359 : internal error unable to execute QEMU command 'getfd': No file descriptor supplied via SCM_RIGHTS ;

but, other vm's running on the server successfully migrated to remote server;

 

Libvirt Version: libvirt-0.10.2-46.el6.x86_64;

Qemu-kvm Version: qemu-kvm-0.12.1.2-2.448.el6.3.x86_64;

OS Version: Red Hat Enterprise Linux Server release 6.6;

 

Thanks~

 

 

 

 

 

 

Work Hard, Have Fun, Make History!

 

Mail: raojunming113 pingan com

 

 

-----邮件原件-----
发件人: libvir-list-bounces redhat com [mailto:libvir-list-bounces redhat com] 代表 libvir-list-request redhat com
发送时间: 2016514 7:47
收件人: libvir-list redhat com
主题: libvir-list Digest, Vol 126, Issue 182

 

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Today's Topics:

 

   1. [PATCH 3/6] iscsi: Export virISCSITargetAutologin (John Ferlan)

   2. [PATCH 4/6] util: Add "--op nonpersistent" to iSCSI

      sendtargets (John Ferlan)

   3. [PATCH 5/6] iscsi: Inhibit autologin for only libvirt         managed

      targets (John Ferlan)

   4. [PATCH 6/6] iscsi: Remove initiatoriqn from

      virISCSIScanTargets (John Ferlan)

   5. [PATCH] capabilities: Advertise cpuselection if -cpu host      is

      usable (Jiri Denemark)

   6. Re: [PATCH 0/2] libxl: support pvusb (Jim Fehlig)

   7. Re: [PATCH] libxl: add .domainInterfaceAddresses (Jim Fehlig)

 

 

----------------------------------------------------------------------

 

Message: 1

Date: Fri, 13 May 2016 17:29:23 -0400

From: John Ferlan <jferlan redhat com>

To: libvir-list redhat com

Subject: [libvirt] [PATCH 3/6] iscsi: Export virISCSITargetAutologin

Message-ID: <1463174966-3185-4-git-send-email-jferlan redhat com>

 

Make it accessible for future patches

 

Signed-off-by: John Ferlan <jferlan redhat com>

---

src/libvirt_private.syms | 1 +

src/util/viriscsi.c      | 2 +-

src/util/viriscsi.h      | 7 +++++++

3 files changed, 9 insertions(+), 1 deletion(-)

 

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index fb24808..719d753 100644

--- a/src/libvirt_private.syms

+++ b/src/libvirt_private.syms

@@ -1675,6 +1675,7 @@ virISCSIGetSession;  virISCSINodeUpdate;  virISCSIRescanLUNs;  virISCSIScanTargets;

+virISCSITargetAutologin;

 

 # util/virjson.h

diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c index be296d7..ea01b3d 100644

--- a/src/util/viriscsi.c

+++ b/src/util/viriscsi.c

@@ -404,7 +404,7 @@ virISCSIGetTargets(char **const groups,  }

 

-static int

+int

virISCSITargetAutologin(const char *portal,

                         const char *initiatoriqn,

                         const char *target, diff --git a/src/util/viriscsi.h b/src/util/viriscsi.h index f4093f7..3e7ea68 100644

--- a/src/util/viriscsi.h

+++ b/src/util/viriscsi.h

@@ -48,6 +48,13 @@ virISCSIRescanLUNs(const char *session)

     ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;

 int

+virISCSITargetAutologin(const char *portal,

+                        const char *initiatoriqn,

+                        const char *target,

+                        bool enable)

+    ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(3) ATTRIBUTE_RETURN_CHECK;

+

+int

virISCSIScanTargets(const char *portal,

                     const char *initiatoriqn,

                     size_t *ntargetsret,

--

2.5.5

 

 

 

------------------------------

 

Message: 2

Date: Fri, 13 May 2016 17:29:24 -0400

From: John Ferlan <jferlan redhat com>

To: libvir-list redhat com

Subject: [libvirt] [PATCH 4/6] util: Add "--op nonpersistent" to iSCSI

         sendtargets

Message-ID: <1463174966-3185-5-git-send-email-jferlan redhat com>

 

From: Fritz Elfert <fritz fritz-elfert de>

 

The root cause of commit id '3c12b654' was to ensure that an iSCSI

sendtargets command to discover all the available targets on the

host didn't reset the "node.startup" value for a future restarts

on any target that libvirt is managing.

 

However, by adding the "--op nonpersistent" inhibits the iSCSI

initiator from recording/modifying in the bowels /var/lib/iscsi

of any target.

 

Signed-off-by: John Ferlan <jferlan redhat com>

---

src/util/viriscsi.c  | 1 +

tests/viriscsitest.c | 4 +++-

2 files changed, 4 insertions(+), 1 deletion(-)

 

diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c

index ea01b3d..36612c5 100644

--- a/src/util/viriscsi.c

+++ b/src/util/viriscsi.c

@@ -446,6 +446,7 @@ virISCSIScanTargets(const char *portal,

                                              "--mode", "discovery",

                                              "--type", "sendtargets",

                                              "--portal", portal,

+                                             "--op", "nonpersistent",

                                              NULL);

     memset(&list, 0, sizeof(list));

diff --git a/tests/viriscsitest.c b/tests/viriscsitest.c

index c697a4a..b5b0e20 100644

--- a/tests/viriscsitest.c

+++ b/tests/viriscsitest.c

@@ -90,7 +90,9 @@ static void testIscsiadmCb(const char *const*args,

                args[4] && STREQ(args[4], "sendtargets") &&

                args[5] && STREQ(args[5], "--portal") &&

                args[6] && STREQ(args[6], "10.20.30.40:3260,1") &&

-               args[7] == NULL) {

+               args[7] && STREQ(args[7], "--op") &&

+               args[8] && STREQ(args[8], "nonpersistent") &&

+               args[9] == NULL) {

         ignore_value(VIR_STRDUP(*output, iscsiadmSendtargetsOutput));

     } else {

         *status = -1;

--

2.5.5

 

 

 

------------------------------

 

Message: 3

Date: Fri, 13 May 2016 17:29:25 -0400

From: John Ferlan <jferlan redhat com>

To: libvir-list redhat com

Subject: [libvirt] [PATCH 5/6] iscsi: Inhibit autologin for only

         libvirt        managed targets

Message-ID: <1463174966-3185-6-git-send-email-jferlan redhat com>

 

https://bugzilla.redhat.com/show_bug.cgi?id=1331552

 

Based on code originally posted by Fritz Elfert <fritz fritz-elfert de>

to remove the Autologin code entirely from libvirt, but reworked to only

set Autologin for libvirt managed targets.

 

Commit id '3c12b654' took a "large hammer" approach to inhibiting logins

which causes issues if there are iSCSI targets not being managed by libvirt.

 

Now that the previous commit ensures that the iscsi initiator doesn't update

the /var/lib/iscsi tree with the results for a 'sendtargets' by using the

"--op nonpersistent" option, let's remove the code from virISCSIScanTargets

that disables autologin for every target, but add that same setting into

the start pool code for each managed/started target to ensure that nothing

else goes and tries to autologin.

 

Signed-off-by: John Ferlan <jferlan redhat com>

---

src/storage/storage_backend_iscsi.c | 11 +++++++++++

src/util/viriscsi.c                 | 15 ++-------------

2 files changed, 13 insertions(+), 13 deletions(-)

 

diff --git a/src/storage/storage_backend_iscsi.c b/src/storage/storage_backend_iscsi.c

index 9e2d01e..5fbf390 100644

--- a/src/storage/storage_backend_iscsi.c

+++ b/src/storage/storage_backend_iscsi.c

@@ -404,6 +404,17 @@ virStorageBackendISCSIStartPool(virConnectPtr conn,

                                 NULL, NULL) < 0)

             goto cleanup;

+        /* Inhibit our autologin for our managed source device */

+        if (virISCSITargetAutologin(portal,

+                                    pool->def->source.initiator.iqn,

+                                    pool->def->source.devices[0].path,

+                                    false) < 0) {

+            virReportError(VIR_ERR_INTERNAL_ERROR,

+                           _("failed to inhibit autologin for target '%s'"),

+                           pool->def->source.devices[0].path);

+            goto cleanup;

+        }

+

         if (virStorageBackendISCSISetAuth(portal, conn, &pool->def->source) < 0)

             goto cleanup;

diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c

index 36612c5..3133d88 100644

--- a/src/util/viriscsi.c

+++ b/src/util/viriscsi.c

@@ -415,13 +415,14 @@ virISCSITargetAutologin(const char *portal,

                                 "--value", enable ? "automatic" : "manual",

                                 NULL };

+    VIR_DEBUG("set autologin for '%s' to '%d'", target, enable);

     return virISCSIConnection(portal, initiatoriqn, target, extraargv);

}

 

 int

virISCSIScanTargets(const char *portal,

-                    const char *initiatoriqn,

+                    const char *initiatoriqn ATTRIBUTE_UNUSED,

                     size_t *ntargetsret,

                     char ***targetsret)

{

@@ -459,18 +460,6 @@ virISCSIScanTargets(const char *portal,

                            &list, NULL, NULL) < 0)

         goto cleanup;

-    for (i = 0; i < list.ntargets; i++) {

-        /* We have to ignore failure, because we can't undo

-         * the results of 'sendtargets', unless we go scrubbing

-         * around in the dirt in /var/lib/iscsi.

-         */

-        if (virISCSITargetAutologin(portal,

-                                    initiatoriqn,

-                                    list.targets[i], false) < 0)

-            VIR_WARN("Unable to disable auto-login on iSCSI target %s: %s",

-                     portal, list.targets[i]);

-    }

-

     if (ntargetsret && targetsret) {

         *ntargetsret = list.ntargets;

         *targetsret = list.targets;

--

2.5.5

 

 

 

------------------------------

 

Message: 4

Date: Fri, 13 May 2016 17:29:26 -0400

From: John Ferlan <jferlan redhat com>

To: libvir-list redhat com

Subject: [libvirt] [PATCH 6/6] iscsi: Remove initiatoriqn from

         virISCSIScanTargets

Message-ID: <1463174966-3185-7-git-send-email-jferlan redhat com>

 

No longer necessary to have it, so remove it.

 

Signed-off-by: John Ferlan <jferlan redhat com>

---

src/storage/storage_backend_iscsi.c | 8 ++------

src/util/viriscsi.c                 | 3 +--

src/util/viriscsi.h                 | 1 -

tests/viriscsitest.c                | 3 +--

4 files changed, 4 insertions(+), 11 deletions(-)

 

diff --git a/src/storage/storage_backend_iscsi.c b/src/storage/storage_backend_iscsi.c

index 5fbf390..b6b23d3 100644

--- a/src/storage/storage_backend_iscsi.c

+++ b/src/storage/storage_backend_iscsi.c

@@ -197,9 +197,7 @@ virStorageBackendISCSIFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED,

     if (!(portal = virStorageBackendISCSIPortal(source)))

         goto cleanup;

-    if (virISCSIScanTargets(portal,

-                            source->initiator.iqn,

-                            &ntargets, &targets) < 0)

+    if (virISCSIScanTargets(portal, &ntargets, &targets) < 0)

         goto cleanup;

     if (VIR_ALLOC_N(list.sources, ntargets) < 0)

@@ -399,9 +397,7 @@ virStorageBackendISCSIStartPool(virConnectPtr conn,

          * iscsiadm doesn't let you login to a target, unless you've

          * first issued a 'sendtargets' command to the portal :-(

          */

-        if (virISCSIScanTargets(portal,

-                                pool->def->source.initiator.iqn,

-                                NULL, NULL) < 0)

+        if (virISCSIScanTargets(portal, NULL, NULL) < 0)

             goto cleanup;

         /* Inhibit our autologin for our managed source device */

diff --git a/src/util/viriscsi.c b/src/util/viriscsi.c

index 3133d88..a2acb67 100644

--- a/src/util/viriscsi.c

+++ b/src/util/viriscsi.c

@@ -321,7 +321,7 @@ virISCSIConnection(const char *portal,

              * portal. Without the sendtargets all that is received is a

              * "iscsiadm: No records found"

              */

-            if (virISCSIScanTargets(portal, initiatoriqn, NULL, NULL) < 0)

+            if (virISCSIScanTargets(portal, NULL, NULL) < 0)

                 goto cleanup;

             break;

@@ -422,7 +422,6 @@ virISCSITargetAutologin(const char *portal,

 int

virISCSIScanTargets(const char *portal,

-                    const char *initiatoriqn ATTRIBUTE_UNUSED,

                     size_t *ntargetsret,

                     char ***targetsret)

{

diff --git a/src/util/viriscsi.h b/src/util/viriscsi.h

index 3e7ea68..44fb1f4 100644

--- a/src/util/viriscsi.h

+++ b/src/util/viriscsi.h

@@ -56,7 +56,6 @@ virISCSITargetAutologin(const char *portal,

 int

virISCSIScanTargets(const char *portal,

-                    const char *initiatoriqn,

                     size_t *ntargetsret,

                     char ***targetsret)

     ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;

diff --git a/tests/viriscsitest.c b/tests/viriscsitest.c

index b5b0e20..40e4d10 100644

--- a/tests/viriscsitest.c

+++ b/tests/viriscsitest.c

@@ -145,8 +145,7 @@ testISCSIScanTargets(const void *data)

     virCommandSetDryRun(NULL, testIscsiadmCb, NULL);

-    if (virISCSIScanTargets(info->portal, NULL,

-                            &ntargets, &targets) < 0)

+    if (virISCSIScanTargets(info->portal, &ntargets, &targets) < 0)

         goto cleanup;

     if (info->nexpected != ntargets) {

--

2.5.5

 

 

 

------------------------------

 

Message: 5

Date: Fri, 13 May 2016 23:36:17 +0200

From: Jiri Denemark <jdenemar redhat com>

To: libvir-list redhat com

Subject: [libvirt] [PATCH] capabilities: Advertise cpuselection if

         -cpu host is usable

Message-ID:

         <a3394e6b8d0f28591147dd981909e9a1ae39f64d 1463175377 git jdenemar redhat com>

        

 

When -cpu host is supported by a QEMU binary, a user can use

<cpu mode='host-passthrough'/> in domain XML even when libvirtd failed

to find a matching model for the host CPU. Let's make it obvious by

advertising <cpuselection/> guest capability whenever -cpu host is

supported.

 

Signed-off-by: Jiri Denemark <jdenemar redhat com>

---

src/qemu/qemu_capabilities.c                      | 7 ++++---

tests/qemucaps2xmldata/all_1.6.0-1.xml            | 1 +

tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml | 1 +

3 files changed, 6 insertions(+), 3 deletions(-)

 

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c

index 1bddf43..fcfd1cd 100644

--- a/src/qemu/qemu_capabilities.c

+++ b/src/qemu/qemu_capabilities.c

@@ -928,9 +928,10 @@ virQEMUCapsInitGuestFromBinary(virCapsPtr caps,

     machines = NULL;

     nmachines = 0;

-    if (caps->host.cpu &&

-        caps->host.cpu->model &&

-        virQEMUCapsGetCPUDefinitions(qemubinCaps, NULL) > 0 &&

+    if ((virQEMUCapsGet(qemubinCaps, QEMU_CAPS_CPU_HOST) ||

+         (caps->host.cpu &&

+          caps->host.cpu->model &&

+          virQEMUCapsGetCPUDefinitions(qemubinCaps, NULL) > 0)) &&

         !virCapabilitiesAddGuestFeature(guest, "cpuselection", true, false))

         goto cleanup;

diff --git a/tests/qemucaps2xmldata/all_1.6.0-1.xml b/tests/qemucaps2xmldata/all_1.6.0-1.xml

index 2489f49..84d6000 100644

--- a/tests/qemucaps2xmldata/all_1.6.0-1.xml

+++ b/tests/qemucaps2xmldata/all_1.6.0-1.xml

@@ -18,6 +18,7 @@

       </domain>

     </arch>

     <features>

+      <cpuselection/>

       <deviceboot/>

       <disksnapshot default='on' toggle='no'/>

       <acpi default='on' toggle='yes'/>

diff --git a/tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml b/tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml

index 281fab0..28762c2 100644

--- a/tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml

+++ b/tests/qemucaps2xmldata/nodisksnapshot_1.6.0-1.xml

@@ -18,6 +18,7 @@

       </domain>

     </arch>

     <features>

+      <cpuselection/>

       <deviceboot/>

       <disksnapshot default='off' toggle='no'/>

       <acpi default='on' toggle='yes'/>

--

2.8.2

 

 

 

------------------------------

 

Message: 6

Date: Fri, 13 May 2016 16:57:30 -0600

From: Jim Fehlig <jfehlig suse com>

To: Joao Martins <joao m martins oracle com>

Cc: libvirt-list redhat com

Subject: Re: [libvirt] [PATCH 0/2] libxl: support pvusb

Message-ID: <57365BDA 7090005 suse com>

Content-Type: text/plain; charset=windows-1252

 

On 05/13/2016 07:14 AM, Joao Martins wrote:

> On 05/12/2016 11:43 PM, Jim Fehlig wrote:

>> Chunyan Liu wrote:

>>> This patch series is to support pvusb in libxl driver.

>>> 

>>> Chunyan Liu (2):

>>>   libxl: support creating guest with USB hostdev

>>>   libxl: support hotplug USB host device

>> This series should also include support for converting domXML USB config to/from

>> xl.cfg(5) in src/xenconfig/xen_xl.c, along with a test.

>> 

>> FYI, the series fails to build with Xen < 4.7, where LIBXL_HAVE_PVUSB is not

>> defined :-).

> Probably a nice follow-up after this series is in, would be to add the USB

> subsys type to domain capabilities (that you address in the OVMF series)

 

Yes, good point. I'll add it to that series if this one makes it in first.

 

Speaking of the OVMF series, I've fixed a few things after more testing and will

rebase and resend a V2. Thanks in advance if either of you have time to look at it.

 

Regards,

Jim

 

 

 

------------------------------

 

Message: 7

Date: Fri, 13 May 2016 17:47:09 -0600

From: Jim Fehlig <jfehlig suse com>

To: Chunyan Liu <cyliu suse com>, libvirt-list redhat com

Subject: Re: [libvirt] [PATCH] libxl: add .domainInterfaceAddresses

Message-ID: <5736677D 8030209 suse com>

Content-Type: text/plain; charset=windows-1252

 

On 05/13/2016 12:21 AM, Chunyan Liu wrote:

> Add .domainInterfaceAddresses so that user can have a way to

> get domain interface address by 'virsh domifaddr'. Currently

> it only supports '--source lease'.

> 

> Signed-off: Chunyan Liu <cyliu suse com>

> ---

>  src/libxl/libxl_driver.c | 140 +++++++++++++++++++++++++++++++++++++++++++++++

>  1 file changed, 140 insertions(+)

> 

> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c

> index 062d6f8..f2bd6fa 100644

> --- a/src/libxl/libxl_driver.c

> +++ b/src/libxl/libxl_driver.c

> @@ -5425,6 +5425,145 @@ static int libxlNodeGetSecurityModel(virConnectPtr conn,

>      return 0;

>  }

> +static int

> +libxlGetDHCPInterfaces(virDomainPtr dom,

> +                       virDomainObjPtr vm,

> +                       virDomainInterfacePtr **ifaces)

> +{

> +    int rv = -1;

> +    int n_leases = 0;

> +    size_t i, j;

> +    size_t ifaces_count = 0;

> +    virNetworkPtr network = NULL;

> +    char macaddr[VIR_MAC_STRING_BUFLEN];

> +    virDomainInterfacePtr iface = NULL;

> +    virNetworkDHCPLeasePtr *leases = NULL;

> +    virDomainInterfacePtr *ifaces_ret = NULL;

> +

> +    if (!dom->conn->networkDriver ||

> +        !dom->conn->networkDriver->networkGetDHCPLeases) {

> +        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",

> +                       _("Network driver does not support DHCP lease query"));

> +        return -1;

> +    }

> +

> +    for (i = 0; i < vm->def->nnets; i++) {

> +        if (vm->def->nets[i]->type != VIR_DOMAIN_NET_TYPE_NETWORK)

> +            continue;

> +

> +        virMacAddrFormat(&(vm->def->nets[i]->mac), macaddr);

> +        virObjectUnref(network);

> +        network = virNetworkLookupByName(dom->conn,

> +                                         vm->def->nets[i]->data.network.name);

> +

> +        if ((n_leases = virNetworkGetDHCPLeases(network, macaddr,

> +                                                &leases, 0)) < 0)

> +            goto error;

> +

> +        if (n_leases) {

> +            if (VIR_EXPAND_N(ifaces_ret, ifaces_count, 1) < 0)

> +                goto error;

> +

> +            if (VIR_ALLOC(ifaces_ret[ifaces_count - 1]) < 0)

> +                goto error;

> +

> +            iface = ifaces_ret[ifaces_count - 1];

> +            /* Assuming each lease corresponds to a separate IP */

> +            iface->naddrs = n_leases;

> +

> +            if (VIR_ALLOC_N(iface->addrs, iface->naddrs) < 0)

> +                goto error;

> +

> +            if (VIR_STRDUP(iface->name, vm->def->nets[i]->ifname) < 0)

> +                goto cleanup;

> +

> +            if (VIR_STRDUP(iface->hwaddr, macaddr) < 0)

> +                goto cleanup;

> +        }

> +

> +        for (j = 0; j < n_leases; j++) {

> +            virNetworkDHCPLeasePtr lease = leases[j];

> +            virDomainIPAddressPtr ip_addr = &iface->addrs[j];

> +

> +            if (VIR_STRDUP(ip_addr->addr, lease->ipaddr) < 0)

> +                goto cleanup;

> +

> +            ip_addr->type = lease->type;

> +            ip_addr->prefix = lease->prefix;

> +        }

> +

> +        for (j = 0; j < n_leases; j++)

> +            virNetworkDHCPLeaseFree(leases[j]);

> +

> +        VIR_FREE(leases);

> +    }

> +

> +    *ifaces = ifaces_ret;

> +    ifaces_ret = NULL;

> +    rv = ifaces_count;

> +

> + cleanup:

> +    virObjectUnref(network);

> +    if (leases) {

> +        for (i = 0; i < n_leases; i++)

> +            virNetworkDHCPLeaseFree(leases[i]);

> +    }

> +    VIR_FREE(leases);

> +

> +    return rv;

> +

> + error:

> +    if (ifaces_ret) {

> +        for (i = 0; i < ifaces_count; i++)

> +            virDomainInterfaceFree(ifaces_ret[i]);

> +    }

> +    VIR_FREE(ifaces_ret);

> +

> +    goto cleanup;

> +}

 

It's unfortunate this is a copy-paste from the qemu driver. The code is not

trivial and any bug fixes in one copy could be missed in the other. A lot of the

function is domain related, so probably can't be abstracted further to the

network code. Have you considered approaches that allow the drivers to share

this code?

 

Regards,

Jim

 

 

 

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End of libvir-list Digest, Vol 126, Issue 182

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