[PATCH] ntdll: Execute queued APCs before starting a process.
From: Sebastian Lackner <sebastian(a)fds-team.de> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=35561 Signed-off-by: Zebediah Figura <z.figura12(a)gmail.com> --- The linked bug report is messy, but the the problem is essentially that Cygwin queues an APC inside a DLL entry point which creates a thread, and expects that thread to be running once the process starts (and without any alertable waits). Tested with current 64-bit Cygwin; the installer runs to completion with this patch, and hangs without it. dlls/ntdll/loader.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c index 376a8345f48..0ab25dcc51a 100644 --- a/dlls/ntdll/loader.c +++ b/dlls/ntdll/loader.c @@ -3540,6 +3540,7 @@ PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule) */ void WINAPI LdrInitializeThunk( CONTEXT *context, void **entry, ULONG_PTR unknown3, ULONG_PTR unknown4 ) { + static const LARGE_INTEGER zero; NTSTATUS status; WINE_MODREF *wm; LPCWSTR load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer; @@ -3602,6 +3603,8 @@ void WINAPI LdrInitializeThunk( CONTEXT *context, void **entry, ULONG_PTR unknow } RtlLeaveCriticalSection( &loader_section ); + + NtDelayExecution( TRUE, &zero ); } -- 2.23.0
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Zebediah Figura