vgsp: m168 revert to session scope - the pool page is per-CLIENT (conflict line r171: cached=0x1247b5000 new=0x1321fa000); a cross-session cache served the previous client's dead page and silently absorbed releases. scanner: pool demand resolves against every known tracker sem (seen + resolved chains)

1 files changed, 8 insertions, 2 deletions

diff --git a/tools/guest-diag/guest_pin_stream.py b/tools/guest-diag/guest_pin_stream.py
index b308136..4bfaaf8 100644
--- a/tools/guest-diag/guest_pin_stream.py
+++ b/tools/guest-diag/guest_pin_stream.py
@@ -1729,10 +1729,16 @@ def main():
                             # m165 (D-F1a): pool/waiter VAs have no method
                             # stream content and the CE offset math does not
                             # apply; route them to the structural tracker-sem
-                            # walk instead.
+                            # walk instead. m168: the tracker sems are
+                            # long-lived objects (allocated once) whose page
+                            # pointer follows the pool across clients, so try
+                            # every sem we have ever resolved a chain for -
+                            # seen_sems alone can miss the live generation.
+                            _psems = set(seen_sems) | set(KC_PB_STATE.keys()) \
+                                | set(resolved_kc_pb)
                             try:
                                 ok = resolve_pool_va(kc, wv, got,
-                                                     seen_sems)
+                                                     _psems)
                             except Exception:
                                 ok = False
                                 got = []