wall2 session 90: current-boot wait site identified (eglcore+0xB2852D in-process word pair wait inside vkCreateInstance; old 0xa85d24/16K sites dead this boot); t83 sampler + widened nudge tools; multi-word nudge trips -4 (caution confirmed)

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/guest-diag/wall2/nudge2.sh b/tools/guest-diag/wall2/nudge2.sh
new file mode 100755
index 0000000..16ebcd8
--- /dev/null
+++ b/tools/guest-diag/wall2/nudge2.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+# nudge2.sh - widened readiness-word nudger: ALL rw-s nvidia mappings <=256K,
+# writes 1 to any +0x80 u32 that is 0.
+DUR=${1:-300}
+F=/dev/shm/vgpu-guest-ram
+END=$(( $(date +%s) + DUR ))
+sshpass -p ubuntu scp -o StrictHostKeyChecking=no -P 2222 /tmp/opencode/guest_words2.sh ubuntu@127.0.0.1:/tmp/guest_words2.sh >/dev/null 2>&1
+while [ "$(date +%s)" -lt "$END" ]; do
+  OUT=$(timeout 12 sshpass -p ubuntu ssh -o StrictHostKeyChecking=no -p 2222 ubuntu@127.0.0.1 "sudo bash /tmp/guest_words2.sh" 2>/dev/null)
+  [ -n "$OUT" ] && echo "[$(date +%H:%M:%S)] words:" && echo "$OUT"
+  echo "$OUT" | while read -r VA PA SZ; do
+    [ -z "$PA" ] && continue
+    PAD=$((PA)); FOD=$((PAD - 0x80000000)); [ $FOD -lt 0 ] && FOD=$((PAD))
+    CUR=$(sudo dd if=$F bs=4 skip=$((FOD/4)) count=1 2>/dev/null | xxd -p)
+    if [ "$CUR" = "00000000" ]; then
+      printf '\x01\x00\x00\x00' | sudo dd of=$F bs=1 seek=$FOD count=4 conv=notrunc 2>/dev/null
+      echo "  NUDGE va=$VA pa=$PA -> 1"
+    fi
+  done
+  sleep 1.5
+done
+echo NUDGE2-DONE