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path: root/tools/guest-diag/wall2/find_push.py
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* wall2 session 115: decompose the first-fence wall - the sema service cannot ↵Arthur Hanson Rasmusson6 hours
decode the submit's GR pushes because the client VAS page directory is undiscoverable (walk_probe: discovered pdb=0x0; the COPY_SERVER_PDES candidate is garbage; the r496f vidmem discovery never runs) and the pushbuffer is noncontiguous; the RAM ring scan gives up after 12 slices before the pushes exist; ring pages ARE content-locatable by their GPFIFO entries and injectable via sema_map_add (fence_assist.py) but the ring pair alone does not unlock the push decode; next = extract the pdb from the guest kernel's RM objects (PDB injection) or scan vidmem with the ring pair as verifier