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>
86 lines
3.5 KiB
Python
86 lines
3.5 KiB
Python
"""probe_rs_base_inert.py <pid>
|
|
Same probe as probe_rsd3d_lost.py but for RenderSurface base
|
|
(vfptr=0x0079a67c). Check if v5's RS::Destroy actually frees anything,
|
|
or if RS base instances also have NULL buffers (making v5 inert).
|
|
|
|
Probes:
|
|
- lost-entry count
|
|
- entry+0x34 (= primary+0x64, first delete in RS::Destroy)
|
|
- entry+0xE4 (= primary+0x114 = m_pSurfaceBits, second delete)"""
|
|
import ctypes, ctypes.wintypes as wt, sys, struct
|
|
|
|
PROCESS_VM_READ = 0x10
|
|
PROCESS_QUERY_INFORMATION = 0x400
|
|
k = ctypes.windll.kernel32
|
|
k.OpenProcess.argtypes = [wt.DWORD, wt.BOOL, wt.DWORD]; k.OpenProcess.restype = wt.HANDLE
|
|
k.ReadProcessMemory.argtypes = [wt.HANDLE, wt.LPCVOID, wt.LPVOID, ctypes.c_size_t, ctypes.POINTER(ctypes.c_size_t)]
|
|
k.ReadProcessMemory.restype = wt.BOOL
|
|
|
|
S_RESOURCES_M_DATA = 0x008398C4
|
|
S_RESOURCES_M_NUM = 0x008398CC
|
|
RS_BASE_VTABLE = 0x0079a67c
|
|
|
|
def rd(h, va, n):
|
|
buf = (ctypes.c_ubyte * n)(); sz = ctypes.c_size_t(0)
|
|
if not k.ReadProcessMemory(h, va, buf, n, ctypes.byref(sz)): return None
|
|
return bytes(buf[:sz.value])
|
|
|
|
def rd_u32(h, va):
|
|
b = rd(h, va, 4); return struct.unpack('<I', b)[0] if b else None
|
|
|
|
pid = int(sys.argv[1])
|
|
h = k.OpenProcess(PROCESS_VM_READ | PROCESS_QUERY_INFORMATION, False, pid)
|
|
if not h: print(f"OpenProcess err={ctypes.get_last_error()}"); sys.exit(2)
|
|
|
|
m_data = rd_u32(h, S_RESOURCES_M_DATA)
|
|
m_num = rd_u32(h, S_RESOURCES_M_NUM)
|
|
print(f"pid {pid}: s_Resources m_data=0x{m_data:08x} m_num={m_num}")
|
|
|
|
total = 0; lost = 0; live = 0
|
|
buf1_nn = 0; buf2_nn = 0; either_nn = 0
|
|
samples = []
|
|
|
|
# Also separately scan LIVE entries (not lost) to see what buffers look like before v5 fires
|
|
live_buf1_nn = 0; live_buf2_nn = 0; live_either_nn = 0
|
|
|
|
for i in range(min(m_num, 100000)):
|
|
entry = rd_u32(h, m_data + i * 4)
|
|
if not entry: continue
|
|
vt = rd_u32(h, entry)
|
|
if vt != RS_BASE_VTABLE: continue
|
|
total += 1
|
|
bIsLost_word = rd_u32(h, entry + 8)
|
|
is_lost = (bIsLost_word & 0xFF) != 0
|
|
buf1 = rd_u32(h, entry + 0x34) # primary+0x64
|
|
buf2 = rd_u32(h, entry + 0xE4) # primary+0x114
|
|
if buf1 is None or buf2 is None: continue
|
|
|
|
if is_lost:
|
|
lost += 1
|
|
if buf1 != 0: buf1_nn += 1
|
|
if buf2 != 0: buf2_nn += 1
|
|
if buf1 != 0 or buf2 != 0:
|
|
either_nn += 1
|
|
if len(samples) < 5:
|
|
samples.append(('LOST', entry, buf1, buf2))
|
|
else:
|
|
live += 1
|
|
if buf1 != 0: live_buf1_nn += 1
|
|
if buf2 != 0: live_buf2_nn += 1
|
|
if buf1 != 0 or buf2 != 0:
|
|
live_either_nn += 1
|
|
if len(samples) < 10:
|
|
samples.append(('LIVE', entry, buf1, buf2))
|
|
|
|
print(f"RS base: total={total} lost={lost} live={live}")
|
|
print(f" LOST entries:")
|
|
print(f" buf1 (primary+0x64) non-NULL: {buf1_nn:5d} / {lost} ({100*buf1_nn//max(lost,1)}%)")
|
|
print(f" buf2 (m_pSurfaceBits) non-NULL: {buf2_nn:5d} / {lost} ({100*buf2_nn//max(lost,1)}%)")
|
|
print(f" either non-NULL: {either_nn:5d} / {lost} ({100*either_nn//max(lost,1)}%)")
|
|
print(f" LIVE entries:")
|
|
print(f" buf1 (primary+0x64) non-NULL: {live_buf1_nn:5d} / {live} ({100*live_buf1_nn//max(live,1)}%)")
|
|
print(f" buf2 (m_pSurfaceBits) non-NULL: {live_buf2_nn:5d} / {live} ({100*live_buf2_nn//max(live,1)}%)")
|
|
print(f" either non-NULL: {live_either_nn:5d} / {live} ({100*live_either_nn//max(live,1)}%)")
|
|
print(f" Sample non-NULL entries:")
|
|
for status, entry, b1, b2 in samples:
|
|
print(f" [{status}] entry=0x{entry:08x} buf1=0x{b1:08x} buf2=0x{b2:08x}")
|