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Thu, 9 Jan 2025 14:12:06 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id hxyFDDbZf2fOWgAAD6G6ig (envelope-from ); Thu, 09 Jan 2025 14:12:06 +0000 From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Thomas Huth Subject: [PATCH v2 0/7] migration: Fix s390 regressions + migration script Date: Thu, 9 Jan 2025 11:09:52 -0300 Message-Id: <20250109140959.19464-1-farosas@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-0.999]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid,gitlab.com:url]; RCVD_TLS_ALL(0.00)[] Received-SPF: pass client-ip=2a07:de40:b251:101:10:150:64:1; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, 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 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org changes from v1: - dropped comments patch - new patch 4: rename the field to nullptr - patch 6: add a sample JSON, fix the appending code CI run: https://gitlab.com/farosas/qemu/-/pipelines/1616920974 v1: https://lore.kernel.org/r/20250107195025.9951-1-farosas@suse.de Hi, The situation that broke the last migration PR was: 1) emitting of JSON data by QEMU for VMSTATE_ARRAY_OF_POINTER_TO_STRUCT when NULL pointers are present has been broken for a while; 2) parsing of s390x migration stream by analyze-script.py has been broken for a while; (there's indications that it worked on s390x hosts, I'm assuming due to byte order coincidences) 3) s390x CSS migration has been broken for a while; The s390x CSS migration uses VMSTATE_ARRAY_OF_POINTER_TO_STRUCT with NULL pointers, triggering #1, but hidden due to #2 on TCG hosts and due to #3 overall. - patches 1: just to make rebase easier - patches 2-3: cleanups - patch 4: fixes #2 - patches 5-6: fix #1 - patch 7: fixes #3 Fabiano Rosas (6): migration: Add more error handling to analyze-migration.py migration: Remove unused argument in vmsd_desc_field_end migration: Fix parsing of s390 stream migration: Rename vmstate_info_nullptr migration: Fix arrays of pointers in JSON writer s390x: Fix CSS migration Peter Xu (1): migration: Dump correct JSON format for nullptr replacement hw/s390x/s390-virtio-ccw.c | 2 +- migration/vmstate-types.c | 2 +- migration/vmstate.c | 151 ++++++++++++++++++++++++++++------- scripts/analyze-migration.py | 144 ++++++++++++++++++++++++--------- 4 files changed, 230 insertions(+), 69 deletions(-)