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[RESOLVED] Win2008R2 SP1: STOP 0xAB in nt!MiCheckSessionPoolAllocations

Status: Resolved.

Update 110809: As part of the HTP11-10 releases, we are releasing KB2585233, which addresses a problem that results in STOP 0xAB errors. Do note that not all of these errors have the same cause. In general, have a look at outdated video drivers, printer drivers, and if applicable, update your Citrix components as well. Then, implement the latest win32k.sys hotfix, and if the issue remains, create a case with us.

We now have two customers hitting a STOP 0xAB, similar to the STOPs we saw quite some time ago, after Win2003SP1. For one of the customers, the dump shows:

BugCheck AB, {2, 50, 0, 2}

 # Child-SP RetAddr Call Site
00 fffff880`0d0c0ac8 fffff800`01c8175f nt!KeBugCheckEx
01 fffff880`0d0c0ad0 fffff800`01b1e997 nt!MiCheckSessionPoolAllocations+0x13f
02 fffff880`0d0c0b10 fffff800`01c1c355 nt!MiDereferenceSessionFinal+0x137
03 fffff880`0d0c0bb0 fffff800`018b2c70 nt!MiDereferenceSession+0x815c5
04 fffff880`0d0c0be0 fffff800`01bb709a nt!MmCleanProcessAddressSpace+0x610
05 fffff880`0d0c0c30 fffff800`01bb7465 nt!PspExitThread+0x56a
06 fffff880`0d0c0d30 fffff800`018d27a6 nt!PspTerminateThreadByPointer+0x4d
07 fffff880`0d0c0d80 00000000`00000000 nt!KxStartSystemThread+0x16

To see the leaking pooltags, use:

5: kd> !poolused 8
.
 Sorting by Session Tag

               NonPaged Paged
 Tag Allocs Used Allocs Used

 Gadb 0 0 1 32 GDITAG_DC_COLOR_TRANSFORM , Binary: win32k!XDCOBJ::bAddColorTransfo
 Gh2> 0 0 1 48 GDITAG_HMGR_SPRITE_TYPE , Binary: win32k.sys
 Pool 1 4096 0 0 Pool tables, etc.

TOTAL 1 4096 2 80

If you encounter these STOPs on your machine(s) too, let me know!

Comments


Use !poolused 8 to dump allocation info for leaked session pooltags. TAG_NOT_DEFINED_405: Pool BUGCHECK_STR:  0xAB_Pool DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT PROCESS_NAME:  csrss.exe CURRENT_IRQL:  0 LAST_CONTROL_TRANSFER:  from fffff80001a1fa7f to fffff80001679c00 STACK_TEXT:   fffff88006c18ac8 fffff80001a1fa7f : 00000000000000ab 0000000000000011 0000000000000050 0000000000000000 : nt!KeBugCheckEx fffff88006c18ad0 fffff800018be917 : fffff88006cefb40 fffff88006cef000 fffff88006cef000 fffffa800a8f8060 : nt!MiCheckSessionPoolAllocations+0x13f fffff88006c18b10 fffff800019bba15 : fffff88006c18ba8 fffffa800a8f8060 ffffffffffffffd3 fffff88006cef000 : nt!MiDereferenceSessionFinal+0x137 fffff88006c18bb0 fffff8000164adec : fffff80001807940 0000000000000001 0000000000000000 fffffa8009804ab0 : nt! ?? ::NNGAKEGL::string'+0x24005 fffff88006c18be0 fffff8000194fcba : fffff8a016f51790 0000000000000000 0000000000000000 fffffa800a8f8060 : nt!MmCleanProcessAddressSpace+0x610 fffff88006c18c30 fffff8000195008d : 0000000000000000 fffff80001917e01 0000000000000000 0000000000000000 : nt!PspExitThread+0x56a fffff88006c18d30 fffff8000166a906 : fffff800017f4e80 0000000000000080 fffffa800a8f8060 fffffa8007ee91b0 : nt!PspTerminateThreadByPointer+0x4d fffff88006c18d80 0000000000000000 : fffff88006c19000 fffff88006c13000 fffff88006c185d0 0000000000000000 : nt!KiStartSystemThread+0x16 STACK_COMMAND:  kb FOLLOWUP_IP: nt!MiCheckSessionPoolAllocations+13f fffff80001a1fa7f cc              int     3 SYMBOL_STACK_INDEX:  1 SYMBOL_NAME:  nt!MiCheckSessionPoolAllocations+13f FOLLOWUP_NAME:  MachineOwner MODULE_NAME: nt DEBUG_FLR_IMAGE_TIMESTAMP:  5147d9c6 IMAGE_NAME:  memory_corruption FAILURE_BUCKET_ID:  X64_LEAKED_SESSION_POOLTAG_Pool BUCKET_ID:  X64_LEAKED_SESSION_POOLTAG_Pool Followup: MachineOwner

0: kd> !poolused 8 . Sorting by Session Tag               NonPaged                  Paged Tag     Allocs         Used     Allocs         Used Gadb         0            0          1           32 GDITAG_DC_COLOR_TRANSFORM , Binary: win32k!XDCOBJ::bAddColorTransfo GhA>         0            0          1           48 GDITAG_HMGR_SPRITE_TYPE , Binary: win32k.sys Pool         1         4096          0            0 Pool tables, etc. TOTAL         1         4096          2           80 0: kd> !pooltag Pool Pooltag Pool Description: Pool tables, etc. Any idea?

  • Anonymous
    September 05, 2014
    I'm getting these too
    AG_NOT_DEFINED_405: Pool

    BUGCHECK_STR: 0xAB_Pool

    DEFAULT_BUCKET_ID: WIN7_DRIVER_FAULT

    PROCESS_NAME: csrss.exe

    CURRENT_IRQL: 0

    ANALYSIS_VERSION: 6.3.9600.16384 (debuggers(dbg).130821-1623) amd64fre

    LAST_CONTROL_TRANSFER: from fffff80001a28abf to fffff80001682b80

    STACK_TEXT:
    fffff88010766ac8 fffff80001a28abf : 00000000000000ab 0000000000000008 0000000000001ac0 0000000000000000 : nt!KeBugCheckEx
    fffff88010766ad0 fffff800018c7917 : fffff8800efb0b40 fffff8800efb0000 fffff8800efb0000 fffffa830820ab00 : nt!MiCheckSessionPoolAllocations+0x13f
    fffff88010766b10 fffff800019c4b35 : fffff88010766ba8 fffffa830820ab00 ffffffffffffffac fffff8800efb0000 : nt!MiDereferenceSessionFinal+0x137
    fffff88010766bb0 fffff80001653dbc : fffff80001810940 0000000000000001 0000000000000000 fffffa8309fc8190 : nt! ?? ::NNGAKEGL::string'&#43;0x23fc5<br>fffff88010766be0 fffff80001958a2a : fffff8a00709f2e0 0000000000000000 0000000000000000 fffffa830820ab00 : nt!MmCleanProcessAddressSpace&#43;0x610<br>fffff88010766c30 fffff80001958dfd : 0000000000000000 fffff80001920b01 0000000000000000 fffffa83086c85e0 : nt!PspExitThread&#43;0x56a<br>fffff88010766d30 fffff800016738c6 : fffff800017fde80 0000000000000080 fffffa830820ab00 00000008f95fc000 : nt!PspTerminateThreadByPointer&#43;0x4d<br>fffff88010766d80 0000000000000000 : fffff88010767000 fffff88010761000 fffff880107665e0 0000000000000000 : nt!KxStartSystemThread&#43;0x16<br><br><br>STACK_COMMAND: kb<br><br>FOLLOWUP_IP: <br>nt!MiCheckSessionPoolAllocations&#43;13f<br>fffff80001a28abf cc int 3

    SYMBOL_STACK_INDEX: 1

    SYMBOL_NAME: nt!MiCheckSessionPoolAllocations+13f

    FOLLOWUP_NAME: MachineOwner

    MODULE_NAME: nt

    DEBUG_FLR_IMAGE_TIMESTAMP: 51fb06cd

    IMAGE_VERSION: 6.1.7601.18229

    IMAGE_NAME: memory_corruption

    FAILURE_BUCKET_ID: X64_LEAKED_SESSION_POOLTAG_Pool

    BUCKET_ID: X64_LEAKED_SESSION_POOLTAG_Pool

    ANALYSIS_SOURCE: KM

    FAILURE_ID_HASH_STRING: km:x64_leaked_session_pooltag_pool

    FAILURE_ID_HASH: {9650ff51-11f4-b11b-e151-128a2efd0412}

    Followup: MachineOwner
    ---------

    4: kd> !poolused 8
    .
    Sorting by Session Tag

    NonPaged Paged
    Tag Allocs Used Allocs Used

    Gtmp 0 0 4 6848 Gdi temporary allocations
    Pool 1 4096 0 0 Pool tables, etc.

    TOTAL 1 4096 4 6848