Sync Center hanging and crashing because of DpoFeedb - Saving the world, one bug at a time - Site Home

0:005> ~2s
DpoFeedb!get_lastknownversion+0xd382:
00000000`1002f812 0f8418feffff    je      DpoFeedb!get_lastknownversion+0xd1a0 (00000000`1002f630) [br=1]
0:002> p
DpoFeedb!get_lastknownversion+0xd1a0:
00000000`1002f630 488b02          mov     rax,qword ptr [rdx] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1a3:
00000000`1002f633 488b4808        mov     rcx,qword ptr [rax+8] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1a7:
00000000`1002f637 483b01          cmp     rax,qword ptr [rcx] ds:00000000`0296dec0=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1aa:
00000000`1002f63a 0f85e7000000    jne     DpoFeedb!get_lastknownversion+0xd297 (00000000`1002f727) [br=0]
0:002>
DpoFeedb!get_lastknownversion+0xd1b0:
00000000`1002f640 4c8b4910        mov     r9,qword ptr [rcx+10h] ds:00000000`0296ded0=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1b4:
00000000`1002f644 4180794800      cmp     byte ptr [r9+48h],0 ds:00000000`0296df08=00
0:002>
DpoFeedb!get_lastknownversion+0xd1b9:
00000000`1002f649 7520            jne     DpoFeedb!get_lastknownversion+0xd1db (00000000`1002f66b) [br=0]
0:002>
DpoFeedb!get_lastknownversion+0xd1bb:
00000000`1002f64b c6404801        mov     byte ptr [rax+48h],1 ds:00000000`0296df08=00
0:002>
DpoFeedb!get_lastknownversion+0xd1bf:
00000000`1002f64f 41c6414801      mov     byte ptr [r9+48h],1 ds:00000000`0296df08=01
0:002>
DpoFeedb!get_lastknownversion+0xd1c4:
00000000`1002f654 488b02          mov     rax,qword ptr [rdx] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1c7:
00000000`1002f657 488b4808        mov     rcx,qword ptr [rax+8] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1cb:
00000000`1002f65b c6414800        mov     byte ptr [rcx+48h],0 ds:00000000`0296df08=01
0:002>
DpoFeedb!get_lastknownversion+0xd1cf:
00000000`1002f65f 488b02          mov     rax,qword ptr [rdx] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1d2:
00000000`1002f662 4c8b4008        mov     r8,qword ptr [rax+8] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd1d6:
00000000`1002f666 e99c010000      jmp     DpoFeedb!get_lastknownversion+0xd377 (00000000`1002f807)
0:002>
DpoFeedb!get_lastknownversion+0xd377:
00000000`1002f807 498d5008        lea     rdx,[r8+8]
0:002>
DpoFeedb!get_lastknownversion+0xd37b:
00000000`1002f80b 488b02          mov     rax,qword ptr [rdx] ds:00000000`0296dec8=000000000296dec0
0:002>
DpoFeedb!get_lastknownversion+0xd37e:
00000000`1002f80e 80784800        cmp     byte ptr [rax+48h],0 ds:00000000`0296df08=00
0:002>
DpoFeedb!get_lastknownversion+0xd382:
00000000`1002f812 0f8418feffff    je      DpoFeedb!get_lastknownversion+0xd1a0 (00000000`1002f630) [br=1]

0:002> lm vm dpofeedb
start             end                 module name
00000000`10000000 00000000`100ad000   DpoFeedb   (export symbols)       C:\Program Files (x86)\DigitalPersona\Bin\x64\DpoFeedb.dll
    Loaded symbol image file: C:\Program Files (x86)\DigitalPersona\Bin\x64\DpoFeedb.dll
    Image path: C:\Program Files (x86)\DigitalPersona\Bin\x64\DpoFeedb.dll
    Image name: DpoFeedb.dll
    Timestamp:        Wed Mar 12 18:40:33 2008 (47D88611)
    CheckSum:         000B47D4
    ImageSize:        000AD000
    File version:     3.0.1.2761
    Product version: 3.0.1.2761
    File flags:       0 (Mask 3F)
    File OS:          4 Unknown Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0000.04e4
    CompanyName:      DigitalPersona, Inc.
    ProductName:      DigitalPersona Personal
    InternalName:     FeedbackHook
    OriginalFilename: Dpofeedb.dll
    ProductVersion:   3.0.1.2761
    FileVersion:      3.0.1.2761
    FileDescription: DigitalPersona OTS Feedback
    LegalCopyright:   Copyright © DigitalPersona, Inc. 1996-2008
    LegalTrademarks: DigitalPersona®
U.are.U®
One Touch®

So I enabled appverifier on mobsync...aaaand now I get a read AV and app crash because of DpoFeedb.dll

00000000`064ef060 00000000`10045753 DpoFeedb!get_lastknownversion+0x32d2
00000000`064ef090 00000000`100469e7 DpoFeedb!gettraceinfo+0xaf3
00000000`064ef160 00000000`774a8418 DpoFeedb!gettraceinfo+0x1d87
00000000`064ef1b0 00000000`774a1104 USER32!IsCharAlphaW+0x9c