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CRITICAL_STRUCTURE_CORRUPTION (109)

This bugcheck is generated when the kernel detects that critical kernel code or data have been corrupted. There are generally three causes for a corruption:
  • A driver has inadvertently or deliberately modified critical kernel code or data. See http://www.microsoft.com/whdc/driver/kernel/64bitPatching.mspx
  • A developer attempted to set a normal kernel breakpoint using a kernel debugger that was not attached when the system was booted. Normal breakpoints, "bp", can only be set if the debugger is attached at boot time. Hardware breakpoints, "ba", can be set at any time.
  • A hardware corruption occurred, e.g. failing RAM holding kernel code or data.

Type of corrupted region

0 : A generic data region
1 : Modification of a function or .pdata
2 : A processor IDT
3 : A processor GDT
4 : Type 1 process list corruption
5 : Type 2 process list corruption
6 : Debug routine modification
7 : Critical MSR modification
8 : Object type
9 : A processor IVT
a : Modification of a system service function
b : A generic session data region
c : Modification of a session function or .pdata
d : Modification of an import table
e : Modification of a session import table
f : Ps Win32 callout modification
10 : Debug switch routine modification
11 : IRP allocator modification
12 : Driver call dispatcher modification
13 : IRP completion dispatcher modification
14 : IRP deallocator modification
15 : A processor control register
16 : Critical floating point control register modification
17 : Local APIC modification
18 : Kernel notification callout modification
19 : Loaded module list modification
1a : Type 3 process list corruption
1b : Type 4 process list corruption
1c : Driver object corruption
1d : Executive callback object modification
1e : Modification of module padding
1f : Modification of a protected process
20 : A generic data region
21 : A page hash mismatch
22 : A session page hash mismatch
23 : Load config directory modification
24 : Inverted function table modification
25 : Session configuration modification
26 : An extended processor control register
27 : Type 1 pool corruption
28 : Type 2 pool corruption
29 : Type 3 pool corruption
2a : Type 4 pool corruption
2b : Modification of a function or .pdata
2c : Image integrity corruption
2d : Processor misconfiguration
2e : Type 5 process list corruption
2f : Process shadow corruption
101 : General pool corruption
102 : Modification of win32k.sys
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CRITICAL_STRUCTURE_CORRUPTION (109)
Type of corrupted region