[PATCH 1/2] ntdll: Set the process detaching flag before calling FLS callbacks.
Zebediah Figura
z.figura12 at gmail.com
Thu Jan 7 09:51:02 CST 2021
So that we will not deadlock trying to acquire fls_section.
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
---
This fixes a hang that can be triggered by running dotnet45, which prevents some
processes from exiting (i.e. bug 49897). Unfortunately it's not enough to fix
the bug alone. I was unable to debug the remaining hang.
dlls/ntdll/loader.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 45ad496fd64..5e9a76b8be1 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -3182,12 +3182,14 @@ fail:
*/
void WINAPI LdrShutdownProcess(void)
{
+ BOOL detaching = process_detaching;
+
TRACE("()\n");
- if (!process_detaching)
+ process_detaching = TRUE;
+ if (!detaching)
RtlProcessFlsData( NtCurrentTeb()->FlsSlots, 1 );
- process_detaching = TRUE;
process_detach();
}
--
2.29.2
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