[PATCH] ntdll: Execute queued APCs before starting a process.
Zebediah Figura
z.figura12 at gmail.com
Thu Sep 19 18:36:04 CDT 2019
From: Sebastian Lackner <sebastian at fds-team.de>
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=35561
Signed-off-by: Zebediah Figura <z.figura12 at 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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