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Re: [PATCH v5 0/1] MR9410: urlmon: FindMimeFromData return only the mime type
by Rémi Bernon (＠rbernon) 25 Nov '25

25 Nov '25

I think it also causes random failures in urlmon:url tests (https://test.winehq.org/data/patterns.html#urlmon:url) -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9410#note_123644

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Re: [PATCH v15 0/5] MR9112: XCOPY and COPY should not attempt to copy a file to itself.
by Rémi Bernon (＠rbernon) 25 Nov '25

25 Nov '25

Fwiw some test is failing on Wine, see https://test.winehq.org/data/patterns.html#xcopy.exe:xcopy -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9112#note_123643

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Re: [PATCH v5 0/1] MR9410: urlmon: FindMimeFromData return only the mime type
by Rémi Bernon (＠rbernon) 25 Nov '25

25 Nov '25

Fwiw the tests are broken on old-ish Windows versions. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9410#note_123640

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[PATCH 0/5] MR9583: dmusic: SF2 fixes, part 2
by Anton Baskanov (＠baskanov) 25 Nov '25

25 Nov '25

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9583

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[PATCH 0/3] MR9585: win32u: Introduce a D3DKMT escape code to set fullscreen present rect. (1/2)
by Rémi Bernon (＠rbernon) 25 Nov '25

25 Nov '25

These calls are Wine-specific and expected to fail on Windows, as the escape codes and parameter combinations are likely invalid there. There doesn't seem to be any mechanism to do this otherwise. When a window presentation rect has been set, the window is meant to be presented to that rect on screen exactly, mapped to physical coords. Then this also has the following side effects: * In exclusive fullscreen mode, GDI drawn child windows are clipped out of the rendered screen, regardless of the normal clipping rules. * The window position and size changes should be ignored wrt its visible area, and in particular the window should not be unmapped even if its Win32 rect is moved to an invisible location. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58844 Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58443 --- This only introduces the mechanism and calls it from Wine D3D side. The side effects will be implemented later in win32u and the user drivers. This is necessary both for Command & Conquer 2, which has dialog child windows covering the entire game window while using WS_CLIPCHILDREN, and for Fallout 3 which does a bogus call sequence after window restoration which moves the window outside of screen area and causes its window and client rects to be empty: SetRect(&rect, 0, 0, width, height); AdjustWindowRectEx(&rect, style, FALSE, 0); SetWindowPos(hwnd, 0, rect.left, rect.bottom, rect.right - rect.left, rect.top - rect.bottom, 0); We need either this kind of mechanism (which could be later changed to some D3DKMTPresent call, but it would require a lot more work and I'd like to fix those regressions before the release), or to hook the window proc like modern Windows seems to be doing as tested in !9549 (and more tests suggest that invalid window moves are also now inhibited and corrected on modern Windows). -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9585

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[PATCH v2 0/1] MR9570: winegstreamer: Only change DMO's output type if SetOutputType is successful.
by Yuxuan Shui (＠yshui) 25 Nov '25

25 Nov '25

Also, make sure if SetOutputType with DMO_SET_TYPEF_TEST_ONLY succeeds then it's guaranteed to succeed without it too. -- v2: winegstreamer: Only change DMO's output type if SetOutputType is successful. https://gitlab.winehq.org/wine/wine/-/merge_requests/9570

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[PATCH 0/4] MR9584: win32u: Update client surfaces starting from toplevel window.
by Rémi Bernon (＠rbernon) 25 Nov '25

25 Nov '25

In apply_window_pos, to notify any parent or children and let them make the necessary changes for offscreen rendering. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9584

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[PATCH v4 0/6] MR9371: kernel32: Implement TH32CS_SNAPMODULE32 support for CreateToolhelp32Snapshot.
by Yuxuan Shui (＠yshui) 25 Nov '25

25 Nov '25

Intention is to use `CreateToolhelp32Snapshot` in `dbghelp.dll: EnumerateLoadedModulesW64`. Right now we can't because `CreateToolhelp32Snapshot` can't capture 32bit modules in wow64 processes, which is needed to support `SYMOPT_INCLUDE_32BIT_MODULES`. The advantage of using `CreateToolhelp32Snapshot` in mainly performance. Right now `EnumerateLoadedModulesW64` is `O(n^2)`, because of each module it calls `GetModuleInformation` which is itself `O(n)` w.r.t. number of modules. Whereas with `CreateToolhelp32Snapshot` there is no need for `GetModuleInformation`, thus reduce the complexity to just `O(n)`. * * * P.S. I am also uncomfortable with the amount of similar code between `CreateToolhelp32Snapshot` and `EnumProcessModulesEx`. Can something be done here? -- v4: kernel32: Implement TH32CS_SNAPMODULE32 support for CreateToolhelp32Snapshot. kernel32: Use GetCurrentProcess() handle in CreateToolheap32Snapshot if possible. kernel32: Test CreateToolhelp32Snapshot with TH32CS_SNAPMODULE32. include: Add TH32CS_SNAPMODULE32. kernel32/tests: Fix CreateToolhelp32Snapshot failure check. kernel32: Fix unsupported flags check in CreateToolhelp32Snapshot. https://gitlab.winehq.org/wine/wine/-/merge_requests/9371

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[PATCH 0/1] MR9577: cmd: Dynamically allocate real_path in WCMD_list_directory (ASan).
by Bernhard Übelacker (＠bernhardu) 25 Nov '25

25 Nov '25

By accident I had still some left-over directories from some test run, and tried a recursive dir in the wineprefix. That led to the ASan report below. [Testbot run with this patch](https://testbot.winehq.org/JobDetails.pl?Key=161037) <details> <summary>ASan report with gdb session</summary> ``` $ wine cmd /K "cd /d c:" c:\>dir c:\tmp.txt /s Datenträger in Laufwerk c hat keine Bezeichnung. Datenträgernummer ist 4300-0000 Directory of c: 16.10.2025 22:48 5,925,244 tmp.txt 1 file 5,925,244 bytes ================================================================= ==520==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffffe1ddea8 at pc 0x00014001a9e9 bp 0x7ffffe1dd270 sp 0x7ffffe1dd2b8 WRITE of size 2 at 0x7ffffe1ddea8 thread T0 #0 0x00014001a9e8 in lstrcatW .../wine/include/winbase.h:2615 #1 0x00014001b8c9 in WCMD_list_directory .../wine/programs/cmd/directory.c:276 #2 0x00014001c7e3 in WCMD_list_directory .../wine/programs/cmd/directory.c:509 #3 0x00014001c7e3 in WCMD_list_directory .../wine/programs/cmd/directory.c:509 ... #23 0x00014001c7e3 in WCMD_list_directory .../wine/programs/cmd/directory.c:509 #24 0x00014001c7e3 in WCMD_list_directory .../wine/programs/cmd/directory.c:509 #25 0x00014001a525 in WCMD_directory .../wine/programs/cmd/directory.c:1000 #26 0x000140023e97 in WCMD_run_builtin_command .../wine/programs/cmd/wcmdmain.c:2244 #27 0x00014002964d in execute_single_command .../wine/programs/cmd/wcmdmain.c:2393 #28 0x0001400288ef in node_execute .../wine/programs/cmd/wcmdmain.c:4597 #29 0x00014002aba6 in wmain .../wine/programs/cmd/wcmdmain.c:4948 #30 0x000140037fec in wmainCRTStartup .../wine/dlls/msvcrt/crt_wmain.c:60 #31 0x6fffffc67a54 in BaseThreadInitThunk (C:\windows\system32\kernel32.dll+0x178027a54) #32 0x6fffffde06d6 in RtlUserThreadStart (C:\windows\system32\ntdll.dll+0x1700506d6) Address 0x7ffffe1ddea8 is located in stack of thread T0 at offset 2920 in frame #0 0x00014001b59f in WCMD_list_directory .../wine/programs/cmd/directory.c:242 This frame has 8 object(s): [32, 2080) 'string' (line 244) [2208, 2272) 'datestring' (line 244) [2304, 2368) 'timestring' (line 244) [2400, 2920) 'real_path' (line 245) <== Memory access at offset 2920 overflows this variable [3056, 3064) 'ft' (line 247) [3088, 3104) 'st' (line 248) [3120, 3168) 'username' (line 338) [3200, 3792) 'finddata' (line 465) HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork (longjmp, SEH and C++ exceptions *are* supported) SUMMARY: AddressSanitizer: stack-buffer-overflow .../wine/include/winbase.h:2615 in lstrcatW ... ==520==ABORTING $ gdb-multiarch -q --pid $(pidof 'C:\windows\system32\cmd.exe') (gdb) b ReportError (gdb) b ReportGenericError (gdb) handle SIGSEGV nostop noprint (gdb) handle SIGUSR1 nostop noprint (gdb) cont (gdb) set osabi Windows (gdb) bt #0 ReportGenericError () at /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt/lib/asan/asan_report.cpp:516 #1 0x00006ffffe8d7857 in __asan_report_store2 () at /home/runner/work/llvm-mingw/llvm-mingw/llvm-project/compiler-rt/lib/asan/asan_rtl.cpp:134 #2 0x000000014001a9e9 in lstrcatW (dst=<optimized out>, src=<optimized out>) at .../wine/include/winbase.h:2615 #3 0x000000014001b8ca in WCMD_list_directory (inputparms=0x7ef45afe0e50, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:276 #4 0x000000014001c7e4 in WCMD_list_directory (inputparms=0x7ef45afe0e20, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:509 #5 0x000000014001c7e4 in WCMD_list_directory (inputparms=0x7ef45afe0df0, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:509 ... #25 0x000000014001c7e4 in WCMD_list_directory (inputparms=0x7ef45afe02e0, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:509 #26 0x000000014001c7e4 in WCMD_list_directory (inputparms=0x7ef45afe0220, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:509 #27 0x000000014001a526 in WCMD_directory (args=<optimized out>) at .../wine/programs/cmd/directory.c:1000 #28 0x0000000140023e98 in WCMD_run_builtin_command (cmd_index=8, cmd=0x7f405b008200 L"dir c:\\tmp.txt /s") at .../wine/programs/cmd/wcmdmain.c:2244 #29 0x000000014002964e in execute_single_command (command=<optimized out>) at .../wine/programs/cmd/wcmdmain.c:2393 #30 0x00000001400288f0 in node_execute (node=<optimized out>) at .../wine/programs/cmd/wcmdmain.c:4597 #31 0x000000014002aba7 in wmain (argc=<optimized out>, argvW=<optimized out>) at .../wine/programs/cmd/wcmdmain.c:4948 #32 0x0000000140037fed in wmainCRTStartup () at .../wine/dlls/msvcrt/crt_wmain.c:60 #33 0x00006fffffc67a55 in BaseThreadInitThunk () from .../wine-build/llvm-old64-asan-pe/obj/dlls/kernel32/x86_64-windows/kernel32.dll #34 0x00006fffffde06d7 in RtlUserThreadStart () from .../wine-build/llvm-old64-asan-pe/obj/dlls/ntdll/x86_64-windows/ntdll.dll #35 0x0000000000000000 in ?? () (gdb) up (gdb) up (gdb) up #3 0x000000014001b8ca in WCMD_list_directory (inputparms=0x7ef45afe0e50, level=<optimized out>, outputparms=<optimized out>) at .../wine/programs/cmd/directory.c:276 276 lstrcatW(real_path, parms->fileName); (gdb) set print elements 0 (gdb) print parms->dirName $1 = (WCHAR *) 0x7f1a5afe9080 L"c:\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\abcdefghij\\" (gdb) print parms->fileName $2 = (WCHAR *) 0x7ef25afe0bf0 L"tmp.txt" (gdb) print sizeof(real_path)/sizeof(*real_path) $3 = 260 ``` </details> -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9577

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[PATCH 0/1] MR9581: services: Return success for ChangeServiceConfig(SERVICE_CONFIG_SERVICE_SID_INFO).
by Dmitry Timoshkov (＠dmitry) 25 Nov '25

25 Nov '25

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9581

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