57b5e43d0e
Five bugs identified and patched in retail Asheron's Call client: - v3b: palette refcount over-increment (3-byte NOP at two sites) - v5: RenderSurface PurgeResource no-op stub (vtable slot 2 thunk) - v11: two dangling-pointer crash guards (NULL-check + reorder) - v14: CEnvCell::Destroy ClipPlaneList leak (18-byte JMP to cleanup thunk) - v22: unpacker stale-pointer SEH guard (whole-function __try/__except) All five ship in leakfix.dll (117 KB, SHA d282f23c…) which is loaded by acclient.exe at process start via PE import table patching by tools/install_leakfix.py. Controlled 15-client fleet soak: unpatched control died at 26h with palette exhaustion; all 14 patched clients survived past that point and reached ≥5-day uptime. Residual ~15 MB/h growth traced to d3d9.dll's internal slab allocator (260KB surface backing buffers retained after Release). See REPORT.md §10 for the full investigation; conclusion is that it's unfixable from outside d3d9. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
"""count_vtable_instances.py <dump.dmp> <vtable_va>
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Count how many objects in the dump have <vtable_va> as their first DWORD.
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Print the count and a few sample addresses.
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"""
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import struct, sys
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from minidump.minidumpfile import MinidumpFile
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def _ei(v):
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if v is None: return 0
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if hasattr(v, 'value'): return int(v.value)
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return int(v)
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md = MinidumpFile.parse(sys.argv[1])
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vt = int(sys.argv[2], 16)
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rdr = md.get_reader().get_buffered_reader()
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scan = []
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for r in md.memory_info.infos:
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st, ty, pr = _ei(r.State), _ei(r.Type), _ei(r.Protect) & 0xff
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if st != 0x1000 or ty == 0x1000000 or pr not in (0x04, 0x40): continue
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scan.append((r.BaseAddress, r.RegionSize))
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count = 0
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samples = []
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for base, size in scan:
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try:
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rdr.move(base); buf = rdr.read(size)
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except Exception: continue
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if not buf: continue
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end = (len(buf) // 4) * 4
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for off in range(0, end - 4, 4):
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if struct.unpack_from("<I", buf, off)[0] == vt:
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count += 1
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if len(samples) < 5:
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samples.append(base + off)
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print(f"instances of vtable 0x{vt:08x}: {count}")
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for s in samples:
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print(f" 0x{s:08x}")
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