[ros-diffs] [hyperion] 13140: Temporary hack to make ntoskrnl stop crashing - an user-mode pointer (in the EBP register) was being dereferenced without any check

[hyperion at svn.reactos.com]

Temporary hack to make ntoskrnl stop crashing - an user-mode pointer (in
the EBP register) was being dereferenced without any check
Since I don't know what this is for, I'm disabling it for now - it works
for people reporting the crash, and it apparently only breaks GDB
support. Alex, this should be your baby, please have a look
Modified: trunk/reactos/ntoskrnl/ke/i386/syscall.S
  _____  

Modified: trunk/reactos/ntoskrnl/ke/i386/syscall.S
--- trunk/reactos/ntoskrnl/ke/i386/syscall.S	2005-01-19 21:04:37 UTC
(rev 13139)
+++ trunk/reactos/ntoskrnl/ke/i386/syscall.S	2005-01-19 21:05:26 UTC
(rev 13140)
@@ -95,14 +95,20 @@

     pushl %gs
// + 0x48
     sub $0x28, %esp
// + 0x70
 
+#if 0
 #ifdef DBG
     /* Trick gdb 6 into backtracing over the system call */
+    /* FIXME: %ebp is *never* initialized */
     pushl 4(%ebp)    /* DebugEIP */
// + 0x74
     pushl (%ebp)     /* DebugEBP */
// + 0x78
 #else
     pushl 0x60(%esp) /* DebugEIP */
// + 0x74
     pushl %ebp       /* DebugEBP */
// + 0x78
 #endif
+#else
+    pushl $0         /* DebugEIP */
// + 0x74
+    pushl $0         /* DebugEBP */
// + 0x78
+#endif
 
     /* Load the segment registers */
     sti
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