vgsp-sema: bounded channel rewind (sema_chan_rewind: hex h_object or 'all' -> clears slot_done_epoch + last_get + the per-entry rescue state so entries skipped before the VAS pdb anchor re-decode) + bounded per-chunk push-read failure witness (sema-pushfail: va/chunk/page/last_rc/trusted_rc/ipin/alt/win per failed chunk); wall2: runbook.py (trigger the anchor then rewind). Session 118: the anchor+rewind path is wired; the automated rewind scheduler missed (dmesg churn) and the pushfail trace still needs one clean capture

1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/gsp_sema_service.h b/kernel/gsp_sema_service.h
index 534e38d..8d63a72 100644
--- a/kernel/gsp_sema_service.h
+++ b/kernel/gsp_sema_service.h
@@ -111,6 +111,7 @@ int  gsp_sema_service_add_map(u64 gpu_va, u64 pa, u64 len, u32 ap);
 int  gsp_sema_service_dump_vidmem(u64 addr, u64 len);
 int  gsp_sema_service_find_vidmem(u64 pattern, u64 max_hits);
 int  gsp_sema_service_pdb_discover(u64 ring_va, u64 ring_pa);
+int  gsp_sema_service_chan_rewind(u32 h_object);
 int  gsp_sema_service_counter_add(u32 h_object, u64 pa);
 void gsp_sema_service_doorbell(u32 token);