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[newlib-cygwin] Add comment to explain previous patch


https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4998ac43411001a4757537b0312443493cf69112

commit 4998ac43411001a4757537b0312443493cf69112
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Thu Nov 12 11:52:02 2015 +0100

    Add comment to explain previous patch
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/init.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/winsup/cygwin/init.cc b/winsup/cygwin/init.cc
index c6f0e3d..9dabf5f 100644
--- a/winsup/cygwin/init.cc
+++ b/winsup/cygwin/init.cc
@@ -57,6 +57,8 @@ munge_threadfunc ()
     {
       char *threadfunc = NULL;
 
+      /* This call to NtQueryInformationThread crashes under WOW64 on
+         64 bit XP and Server 2003. */
       if (wincap.wow64_has_secondary_stack ())
 	threadfunc = ebp[threadfunc_ix[0]];
       else


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