Report any stored I/O error messages reported by the hypervisor when
reporting messages of a domain. As the I/O error may be already stale we
report also the timestamp when it was recorded.
Example message:
I/O error: disk='vda', index='1', path='/dev/mapper/errdev0', timestamp='2025-01-28 15:47:52.776+0000', message'Input/output error'
Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
include/libvirt/libvirt-domain.h | 3 ++
src/conf/domain_conf.c | 50 ++++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 5 ++++
src/libvirt_private.syms | 1 +
src/libxl/libxl_driver.c | 3 +-
src/qemu/qemu_driver.c | 15 +++++++++-
src/test/test_driver.c | 3 +-
7 files changed, 77 insertions(+), 3 deletions(-)
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 74016c6c46..9e9016cfe7 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -6520,6 +6520,9 @@ int virDomainAuthorizedSSHKeysSet(virDomainPtr domain,
typedef enum {
VIR_DOMAIN_MESSAGE_DEPRECATION = (1 << 0), /* (Since: 7.1.0) */
VIR_DOMAIN_MESSAGE_TAINTING = (1 << 1), /* (Since: 7.1.0) */
+ VIR_DOMAIN_MESSAGE_IOERRORS = (1 << 2), /* Report available stored I/O
+ errors messages for disk images
+ (Since: 11.1.0) */
} virDomainMessageType;
int virDomainGetMessages(virDomainPtr domain,
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 00d486e774..548bc82308 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -31682,6 +31682,47 @@ virHostdevIsPCIDevice(const virDomainHostdevDef *hostdev)
}
+static void
+virDomainObjGetMessagesIOErrorsSrc(virStorageSource *src,
+ const char *diskdst,
+ GPtrArray *m)
+{
+ if (!src ||
+ !src->ioerror_message)
+ return;
+
+ g_ptr_array_add(m, g_strdup_printf(_("I/O error: disk='%1$s', index='%2$d', path='%3$s', timestamp='%4$s', message'%5$s'"),
+ NULLSTR_MINUS(diskdst),
+ src->id,
+ NULLSTR_MINUS(src->path),
+ src->ioerror_timestamp,
+ src->ioerror_message));
+}
+
+
+void
+virDomainObjGetMessagesIOErrorsChain(virStorageSource *src,
+ const char *diskdst,
+ GPtrArray *m)
+{
+ virStorageSource *n;
+
+ for (n = src; n; n = n->backingStore) {
+ virDomainObjGetMessagesIOErrorsSrc(n, diskdst, m);
+ virDomainObjGetMessagesIOErrorsSrc(n->dataFileStore, diskdst, m);
+ }
+}
+
+
+static void
+virDomainObjGetMessagesIOErrorsDisk(virDomainDiskDef *disk,
+ GPtrArray *m)
+{
+ virDomainObjGetMessagesIOErrorsChain(disk->src, disk->dst, m);
+ virDomainObjGetMessagesIOErrorsChain(disk->mirror, disk->dst, m);
+}
+
+
/**
* virDomainObjGetMessages:
* @vm: domain object
@@ -31710,6 +31751,15 @@ virDomainObjGetMessages(virDomainObj *vm,
vm->deprecations[i]));
}
}
+
+ if (!flags || (flags & VIR_DOMAIN_MESSAGE_IOERRORS)) {
+ if (vm->def->os.loader)
+ virDomainObjGetMessagesIOErrorsChain(vm->def->os.loader->nvram, NULL, m);
+
+ for (i = 0; i < vm->def->ndisks; i++)
+ virDomainObjGetMessagesIOErrorsDisk(vm->def->disks[i], m);
+ }
+
}
bool
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index e996d3c0de..e51c74b6d1 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -4588,6 +4588,11 @@ bool
virHostdevIsPCIDevice(const virDomainHostdevDef *hostdev)
ATTRIBUTE_NONNULL(1);
+void
+virDomainObjGetMessagesIOErrorsChain(virStorageSource *src,
+ const char *diskdst,
+ GPtrArray *m);
+
void
virDomainObjGetMessages(virDomainObj *vm,
GPtrArray *m,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 2fe0a07944..406e6583a3 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -592,6 +592,7 @@ virDomainObjEndAPI;
virDomainObjFormat;
virDomainObjGetDefs;
virDomainObjGetMessages;
+virDomainObjGetMessagesIOErrorsChain;
virDomainObjGetMetadata;
virDomainObjGetOneDef;
virDomainObjGetOneDefState;
diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index 426c2b4278..a76545c9ff 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -6580,7 +6580,8 @@ libxlDomainGetMessages(virDomainPtr dom,
int ret = -1;
virCheckFlags(VIR_DOMAIN_MESSAGE_DEPRECATION |
- VIR_DOMAIN_MESSAGE_TAINTING, -1);
+ VIR_DOMAIN_MESSAGE_TAINTING |
+ VIR_DOMAIN_MESSAGE_IOERRORS, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
return -1;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8327e7079c..50733a5b3a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -19821,9 +19821,11 @@ qemuDomainGetMessages(virDomainPtr dom,
g_autoptr(GPtrArray) m = g_ptr_array_new_with_free_func(g_free);
virDomainObj *vm = NULL;
int rv = -1;
+ qemuDomainObjPrivate *priv;
virCheckFlags(VIR_DOMAIN_MESSAGE_DEPRECATION |
- VIR_DOMAIN_MESSAGE_TAINTING, -1);
+ VIR_DOMAIN_MESSAGE_TAINTING |
+ VIR_DOMAIN_MESSAGE_IOERRORS, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
@@ -19831,8 +19833,19 @@ qemuDomainGetMessages(virDomainPtr dom,
if (virDomainGetMessagesEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
+ priv = vm->privateData;
+
virDomainObjGetMessages(vm, m, flags);
+ if (priv->backup) {
+ size_t i;
+
+ for (i = 0; i < priv->backup->ndisks; i++)
+ virDomainObjGetMessagesIOErrorsChain(priv->backup->disks[i].store,
+ priv->backup->disks[i].name,
+ m);
+ }
+
rv = m->len;
if (m->len > 0) {
g_ptr_array_add(m, NULL);
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index a10ec3bc41..6f18b2b2c8 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -9527,7 +9527,8 @@ testDomainGetMessages(virDomainPtr dom,
int rv = -1;
virCheckFlags(VIR_DOMAIN_MESSAGE_DEPRECATION |
- VIR_DOMAIN_MESSAGE_TAINTING, -1);
+ VIR_DOMAIN_MESSAGE_TAINTING |
+ VIR_DOMAIN_MESSAGE_IOERRORS, -1);
if (!(vm = testDomObjFromDomain(dom)))
return -1;
--
2.48.1
