v3: - Rebase to master after majority of Fabiano's series merged - Dropped patch 2: "migration: Let migrate_set_error() take ownership" (When looking again, I'm not happy with neither that of my patch nor current code. But in that case I prefer change nothing rather than changing from one ugly to another) - Dropped a few Fabiano's R-b due to either rebase (return path thread now is recycled when pausing postcopy) or additional error_free() after I dropped patch 2
v1: https://lore.kernel.org/r/20230829214235.69309-1-pet...@redhat.com v2: https://lore.kernel.org/r/20230912222145.731099-1-pet...@redhat.com This series allow better error handling in the postcopy return path thread, so that we'll start to store the errors in MigrationState and can be seen from query-migrate later, comparing to before where we do error_report() and never remember the error. Meanwhile, it allows double-failures to happen during postcopy recovery, IOW, one can fail again right during RECOVER phase on both sides, even if RECOVER phase should be an extremely small window. Please have a look, thanks. Fabiano Rosas (1): tests/migration-test: Add a test for postcopy hangs during RECOVER Peter Xu (9): migration: Display error in query-migrate irrelevant of status migration: Introduce migrate_has_error() migration: Refactor error handling in source return path migration: Deliver return path file error to migrate state too qemufile: Always return a verbose error migration: Remember num of ramblocks to sync during recovery migration: Add migration_rp_wait|kick() migration: Allow network to fail even during recovery migration: Allow RECOVER->PAUSED convertion for dest qemu qapi/migration.json | 5 +- migration/migration.h | 21 +++- migration/qemu-file.h | 1 + migration/ram.h | 5 +- migration/migration.c | 206 ++++++++++++++++++++++------------- migration/qemu-file.c | 17 ++- migration/ram.c | 76 +++++++------ migration/savevm.c | 3 +- tests/qtest/migration-test.c | 94 ++++++++++++++++ migration/trace-events | 4 +- 10 files changed, 312 insertions(+), 120 deletions(-) -- 2.41.0
