[libvirt] [PATCH] qemu: properly quit migration with abort_on_error

When EIO comes to qemu while it's replying to qemuMigrationUpdateJobStatus(), qemu blocks, the migration of RAM can complete in the meantime, and when qemu unblocks, it sends us BLOCK_IO_ERROR plus migrations "status": "complete". Even though we act upon the BLOCK_IO_ERROR by setting the proper state of the domain, the call still waits for the proper reply on monitor for query_migrate and after it gets it, it checks that migration is completed and the migration is finished. This is what abort_on_error flag was meant for (we can migrate with these errors, but this flag must inhibit such behaviour). Changing the order of the steps guarantees the flag works properly. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1045833 Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- src/qemu/qemu_migration.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 593d2d3..3d005a0 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -1812,15 +1812,15 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver, virDomainObjPtr vm, /* Poll every 50ms for progress & to allow cancellation */ struct timespec ts = { .tv_sec = 0, .tv_nsec = 50 * 1000 * 1000ull }; + if (qemuMigrationUpdateJobStatus(driver, vm, job, asyncJob) < 0) + goto cleanup; + /* cancel migration if disk I/O error is emitted while migrating */ if (abort_on_error && virDomainObjGetState(vm, &pauseReason) == VIR_DOMAIN_PAUSED && pauseReason == VIR_DOMAIN_PAUSED_IOERROR) goto cancel; - if (qemuMigrationUpdateJobStatus(driver, vm, job, asyncJob) < 0) - goto cleanup; - if (dconn && virConnectIsAlive(dconn) <= 0) { virReportError(VIR_ERR_OPERATION_FAILED, "%s", _("Lost connection to destination host")); -- 1.9.2