open-iov.git/tools/guest-diag/wall2/find_push.py, branch master Open-IOV vGPU-IO: host-side GSP emulation for unmodified NVIDIA guest drivers https://git.vgpu.io/open-iov.git/atom?h=master 2026-10-25T21:41:03+00:00 wall2 session 115: decompose the first-fence wall - the sema service cannot 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 2026-10-25T21:41:03+00:00 Arthur Hanson Rasmusson arthur@vgpu.io 2026-10-25T21:41:03+00:00 urn:sha1:50e293e39fc322fce3221c01a2a7219d49f618d1