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b=XugETlaknAu8kuVwdb6ei2E1edBDNSFfNhHpGC1I1sE0Y3+fn7hzVZidtAYq4QflqFuteWVfdMhh2bWznj8tfyI88FIOcOV4M7loEjI1EeC+CXJUFrTwLovjmhM/ZH2WFoYJEF20PK2m+Gp7xRTU0ospJ02fT0tLrdWHUzjXxXKf7jaU8jT8IVHaasUZaJRC/Ky8dOiOgErGZjz3SamIytW4A7r0yamUK6Bn+0e2pXrqQf4gj1rEHoKuz1m0yBDyjeKuCmz6sm/4CMWHnt8fuEJDMiZRTHCNyWiXyyWPElPkAPc7RSGHet70tyToAnSYtZUeotboMUMhX0fEnJfyKw== From: "tejus.gk" To: qemu-devel@nongnu.org Cc: quintela@redhat.com, peterx@redhat.com, leobras@redhat.com, "tejus.gk" Subject: [RFC 1/1] migration: Update error description whenever migration fails Date: Wed, 3 May 2023 20:31:16 +0000 Message-Id: <20230503203116.42429-2-tejus.gk@nutanix.com> X-Mailer: git-send-email 2.22.3 In-Reply-To: <20230503203116.42429-1-tejus.gk@nutanix.com> References: <20230503203116.42429-1-tejus.gk@nutanix.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: BYAPR07CA0018.namprd07.prod.outlook.com (2603:10b6:a02:bc::31) To BYAPR02MB4806.namprd02.prod.outlook.com (2603:10b6:a03:42::30) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BYAPR02MB4806:EE_|SA0PR02MB7321:EE_ X-MS-Office365-Filtering-Correlation-Id: 47a4cf85-94f6-4ba6-860d-08db4c156e04 x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.151.68; envelope-from=tejus.gk@nutanix.com; helo=mx0a-002c1b01.pphosted.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.161, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @nutanix.com) X-ZM-MESSAGEID: 1683145948657100001 Content-Type: text/plain; charset="utf-8" There are places in the code where the migration is marked failed with MIGRATION_STATUS_FAILED, but the failiure reason is never updated. Hence libvirt doesn't know why the migration failed when it queries for it. Signed-off-by: tejus.gk --- migration/migration.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index feb5ab7493..0d7d34bf4d 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1665,8 +1665,11 @@ void qmp_migrate(const char *uri, bool has_blk, bool= blk, } error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "uri", "a valid migration protocol"); + error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "uri", + "a valid migration protocol"); migrate_set_state(&s->state, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_FAILED); + migrate_set_error(s, local_err); block_cleanup_parameters(); return; } @@ -2059,6 +2062,7 @@ static int postcopy_start(MigrationState *ms) int64_t bandwidth =3D migrate_max_postcopy_bandwidth(); bool restart_block =3D false; int cur_state =3D MIGRATION_STATUS_ACTIVE; + Error *local_err =3D NULL; =20 if (migrate_postcopy_preempt()) { migration_wait_main_channel(ms); @@ -2203,8 +2207,10 @@ static int postcopy_start(MigrationState *ms) ret =3D qemu_file_get_error(ms->to_dst_file); if (ret) { error_report("postcopy_start: Migration stream errored"); + error_setg(&local_err, "postcopy_start: Migration stream errored"); migrate_set_state(&ms->state, MIGRATION_STATUS_POSTCOPY_ACTIVE, MIGRATION_STATUS_FAILED); + migrate_set_error(ms, local_err); } =20 trace_postcopy_preempt_enabled(migrate_postcopy_preempt()); @@ -3233,7 +3239,9 @@ void migrate_fd_connect(MigrationState *s, Error *err= or_in) if (migrate_postcopy_ram() || migrate_return_path()) { if (open_return_path_on_source(s, !resume)) { error_report("Unable to open return-path for postcopy"); + error_setg(&local_err, "Unable to open return-path"); migrate_set_state(&s->state, s->state, MIGRATION_STATUS_FAILED= ); + migrate_set_error(s, local_err); migrate_fd_cleanup(s); return; } --=20 2.22.3