From 87d4e359d896e9f4c391addd5a22e2f6b10cdf36 Mon Sep 17 00:00:00 2001
From: TermiNexus <wyt18222152539wyt@163.com>
Date: Wed, 26 Aug 2026 19:23:30 +0800
Subject: [PATCH] =?UTF-8?q?debug(main):=20=E8=BD=AC=E5=82=A8=20BootInfo=20?=
 =?UTF-8?q?=E5=9C=B0=E5=9D=80=E5=A4=84=E5=8E=9F=E5=A7=8B=2088=20=E5=AD=97?=
 =?UTF-8?q?=E8=8A=82?=
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BootInfo=0xde20d00 非 NULL 但字段全 0。转储该地址原始字节，区分内存确实全 0
（bootloader 写入未生效/重定位缺失）还是内核读错偏移（布局不匹配）。
---
 VKernel/Kernel/main.vp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/VKernel/Kernel/main.vp b/VKernel/Kernel/main.vp
index df5894f..a7d8ed5 100644
--- a/VKernel/Kernel/main.vp
+++ b/VKernel/Kernel/main.vp
@@ -142,6 +142,18 @@ class ViperKernel:
                           t.CUInt64T(BootInfo), BootInfo.MemmapAddr, BootInfo.MemmapSize,
                           BootInfo.MemmapDescSize, BootInfo.framebuffer_addr)
         serial.puts(c.Addr(_dbbuf))
+        # [DBG] 转储 BootInfo 地址处原始 88 字节（用后移除）
+        _dbraw: t.CArray[t.CChar, 16]
+        _dbi: t.CInt = 0
+        while _dbi < 88:
+            if (_dbi % 16) == 0:
+                viperlib.snprintf(c.Addr(_dbraw), 16, "\n[DB] %04x:", _dbi)
+                serial.puts(c.Addr(_dbraw))
+            _dbv: t.CUInt8T = c.Deref(t.CUInt8T(t.CUInt64T(BootInfo) + t.CUInt64T(_dbi), t.CPtr))
+            viperlib.snprintf(c.Addr(_dbraw), 16, " %02x", _dbv)
+            serial.puts(c.Addr(_dbraw))
+            _dbi += 1
+        serial.puts("\n[DB] dump end\n")
 
         if BootInfo is not None:
             paging.init(BootInfo.MemmapAddr, BootInfo.MemmapSize)