我收到了一些错误报告，指出在启动时注册Canvas类时发生的访问冲突，更具体地说是在@IntfClear期间执行TCustomDX10Context.CheckDevice。
完整的bug报告：
date/time : 2014-06-04, 18:05:43, 594ms
computer name : <...>
user name : <...>
registered owner : <...>
operating system : Windows 7 x64 Service Pack 1 build 7601
system language : English
system up time : 54 minutes 48 seconds
program up time : 99 milliseconds
processors : 4x Intel(R) Core(TM) i5 CPU 661 @ 3.33GHz
physical memory : 5055/8055 MB (free/total)
free disk space : (C:) 91.84 GB
display mode : 1920x1080, 32 bit
process id : $18c0
allocated memory : 71.76 MB
executable : <...>.exe
exec. date/time : 2014-05-29 22:36
version : 3.2.1.2
compiled with : Delphi XE3
madExcept version : 4.0.6
callstack crc : $077d2d6c, $53160fd9, $53160fd9
exception number : 1
exception class : EAccessViolation
exception message : Zugriffsverletzung bei Adresse 077D2D6C. Lesen von Adresse 000000AE.
main thread ($d0):
077d2d6c +000 ???
0040e028 +010 <...>.exe System 191 +0 @IntfClear
0096af25 +0cd <...>.exe FMX.Context.DX10 TCustomDX10Context.CheckDevice
00976559 +005 <...>.exe FMX.Canvas.D2D RegisterCanvasClasses
00990c6c +000 <...>.exe FMX.Platform.Win 3404 +0 TPlatformWin.RegisterCanvasClasses
009d6312 +056 <...>.exe FMX.Types TCanvasManager.GetDefaultCanvas
009d62aa +00e <...>.exe FMX.Types TCanvasManager.CreateFromWindow
00a0574e +026 <...>.exe FMX.Forms TCustomForm.CreateHandle
009fff91 +0b9 <...>.exe FMX.Forms TCommonCustomForm.InitializeNewForm
00a054fa +006 <...>.exe FMX.Forms TCustomForm.InitializeNewForm
009ffce4 +094 <...>.exe FMX.Forms TCommonCustomForm.Create
00a056c6 +016 <...>.exe FMX.Forms TCustomForm.Create
009fb947 +057 <...>.exe FMX.Forms TApplication.CreateForm
009fbb0b +05f <...>.exe FMX.Forms TApplication.RealCreateForms
00988861 +011 <...>.exe FMX.Platform.Win 461 +1 TPlatformWin.Run
009fe821 +0d1 <...>.exe FMX.Forms TApplication.Run
00beccf4 +2c0 <...>.exe <...> 106 +39 initialization
75863388 +010 kernel32.dll BaseThreadInitThunk
thread $186c:
778a0156 +0e ntdll.dll NtWaitForMultipleObjects
76e715f1 +fa KERNELBASE.dll WaitForMultipleObjectsEx
758619f3 +89 kernel32.dll WaitForMultipleObjectsEx
75330864 +00 USER32.dll MsgWaitForMultipleObjectsEx
75330b64 +1a USER32.dll MsgWaitForMultipleObjects
004a42e9 +0d <...>.exe madExcept CallThreadProcSafe
004a434e +32 <...>.exe madExcept ThreadExceptFrame
75863388 +10 kernel32.dll BaseThreadInitThunk
>> created by main thread ($d0) at:
734878e1 +00 gdiplus.dll
thread $1288: <priority:1>
7789f8ca +0e ntdll.dll NtWaitForSingleObject
76e714a5 +92 KERNELBASE.dll WaitForSingleObjectEx
7586118f +3e kernel32.dll WaitForSingleObjectEx
75861143 +0d kernel32.dll WaitForSingleObject
004a42e9 +0d <...>.exe madExcept CallThreadProcSafe
004a434e +32 <...>.exe madExcept ThreadExceptFrame
75863388 +10 kernel32.dll BaseThreadInitThunk
>> created by main thread ($d0) at:
54377390 +00 nvwgf2um.dll
thread $28c:
778a1f3f +0b ntdll.dll NtWaitForWorkViaWorkerFactory
75863388 +10 kernel32.dll BaseThreadInitThunk
thread $1bcc:
778a1f3f +0b ntdll.dll NtWaitForWorkViaWorkerFactory
75863388 +10 kernel32.dll BaseThreadInitThunk
modules:
00400000 <...>.exe 3.2.1.2 C:\<...>
10000000 nvspcap.dll 10.11.15.0 C:\Windows\system32
53c10000 nvwgf2um.dll 9.18.13.2723 C:\Windows\system32
603d0000 AcGenral.DLL 6.1.7601.18128 C:\Windows\AppPatch
606d0000 atkdx11disp.dll 7.14.10.305 C:\Windows\system32
60700000 d3d10_1core.dll 6.2.9200.16492 C:\Windows\system32
60750000 d3d10_1.dll 6.2.9200.16492 C:\Windows\system32
60780000 security.dll 6.1.7600.16385 C:\Windows\system32
60790000 FaultRep.dll 6.1.7601.17514 C:\Windows\system32
607f0000 sfc_os.DLL 6.1.7600.16385 C:\Windows\system32
60800000 sfc.dll 6.1.7600.16385 C:\Windows\system32
6ed00000 d3d11.dll 6.2.9200.16570 C:\Windows\system32
706d0000 dxgi.dll 6.2.9200.16492 C:\Windows\system32
70ca0000 propsys.dll 7.0.7601.17514 C:\Windows\system32
70e00000 d3d9.dll 6.1.7601.17514 C:\Windows\system32
70fd0000 nvapi.dll 9.18.13.2723 C:\Windows\system32
71a50000 comctl32.dll 6.10.7601.17514 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.17514_none_41e6975e2bd6f2b2
71bf0000 winmm.dll 6.1.7601.17514 C:\Windows\system32
72150000 samcli.dll 6.1.7601.17514 C:\Windows\system32
73210000 MSACM32.dll 6.1.7600.16385 C:\Windows\system32
73230000 d3d8thk.dll 6.1.7600.16385 C:\Windows\system32
73440000 gdiplus.dll 6.1.7601.18120 C:\Windows\WinSxS\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.7601.18120_none_72d2e82386681b36
73890000 apphelp.dll 6.1.7601.17514 C:\Windows\system32
738e0000 MPR.dll 6.1.7600.16385 C:\Windows\system32
73ca0000 wsock32.dll 6.1.7600.16385 C:\Windows\system32
73f20000 SECUR32.DLL 6.1.7601.18443 C:\Windows\system32
74090000 dwmapi.dll 6.1.7600.16385 C:\Windows\system32
74100000 UxTheme.dll 6.1.7600.16385 C:\Windows\system32
742e0000 comctl32.dll 5.82.7601.18201 C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18201_none_ec80f00e8593ece5
74f90000 profapi.dll 6.1.7600.16385 C:\Windows\system32
74fa0000 USERENV.dll 6.1.7601.17514 C:\Windows\system32
750b0000 ntmarta.dll 6.1.7600.16385 C:\Windows\system32
750e0000 sophos_detoured.dll 10.3.3.128 C:\Program Files (x86)\Sophos\Sophos Anti-Virus
75130000 winspool.drv 6.1.7601.17514 C:\Windows\system32
75190000 version.dll 6.1.7600.16385 C:\Windows\system32
752a0000 CRYPTBASE.dll 6.1.7600.16385 C:\Windows\syswow64
752b0000 SspiCli.dll 6.1.7601.18443 C:\Windows\syswow64
75310000 USER32.dll 6.1.7601.17514 C:\Windows\syswow64
75410000 iertutil.dll 11.0.9600.17041 C:\Windows\syswow64
75630000 SETUPAPI.dll 6.1.7601.17514 C:\Windows\syswow64
757d0000 PSAPI.DLL 6.1.7600.16385 C:\Windows\syswow64
757e0000 api-ms-win-downlevel-normaliz-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
757f0000 NSI.dll 6.1.7600.16385 C:\Windows\syswow64
75800000 WLDAP32.dll 6.1.7601.17514 C:\Windows\syswow64
75850000 kernel32.dll 6.1.7601.18409 C:\Windows\syswow64
759f0000 DEVOBJ.dll 6.1.7601.17621 C:\Windows\syswow64
75a10000 RPCRT4.dll 6.1.7601.18205 C:\Windows\syswow64
75b00000 WININET.dll 11.0.9600.17041 C:\Windows\syswow64
75cc0000 shell32.dll 6.1.7601.18429 C:\Windows\syswow64
76910000 WS2_32.dll 6.1.7601.17514 C:\Windows\syswow64
769b0000 api-ms-win-downlevel-advapi32-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
769c0000 MSCTF.dll 6.1.7600.16385 C:\Windows\syswow64
76a90000 comdlg32.dll 6.1.7601.17514 C:\Windows\syswow64
76b10000 api-ms-win-downlevel-shlwapi-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
76b50000 msvcrt.dll 7.0.7601.17744 C:\Windows\syswow64
76c00000 api-ms-win-downlevel-ole32-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
76c10000 ole32.dll 6.1.7601.17514 C:\Windows\syswow64
76d70000 normaliz.DLL 6.1.7600.16385 C:\Windows\syswow64
76d80000 CLBCatQ.DLL 2001.12.8530.16385 C:\Windows\syswow64
76e10000 CFGMGR32.dll 6.1.7601.17621 C:\Windows\syswow64
76e40000 sechost.dll 6.1.7600.16385 C:\Windows\SysWOW64
76e60000 KERNELBASE.dll 6.1.7601.18409 C:\Windows\syswow64
76eb0000 IMM32.DLL 6.1.7601.17514 C:\Windows\system32
76f10000 USP10.dll 1.626.7601.18009 C:\Windows\syswow64
76fb0000 WINTRUST.dll 6.1.7601.18205 C:\Windows\syswow64
76fe0000 api-ms-win-downlevel-version-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
76ff0000 CRYPT32.dll 6.1.7601.18277 C:\Windows\syswow64
77110000 MSASN1.dll 6.1.7601.17514 C:\Windows\syswow64
77120000 ADVAPI32.dll 6.1.7601.18247 C:\Windows\syswow64
771c0000 oleaut32.dll 6.1.7601.17676 C:\Windows\syswow64
77250000 SHLWAPI.dll 6.1.7601.17514 C:\Windows\syswow64
772b0000 api-ms-win-downlevel-user32-l1-1-0.dll 6.2.9200.16492 C:\Windows\syswow64
772c0000 GDI32.dll 6.1.7601.18275 C:\Windows\syswow64
77350000 urlmon.dll 11.0.9600.17041 C:\Windows\syswow64
77850000 LPK.dll 6.1.7601.18177 C:\Windows\syswow64
77880000 ntdll.dll 6.1.7601.18247 C:\Windows\SysWOW64
processes:
0000 Idle 0 0 0
0004 System 0 0 0
0120 smss.exe 0 0 0
01c8 csrss.exe 0 0 0
0210 wininit.exe 0 0 0
0224 csrss.exe 1 0 0
0250 services.exe 0 0 0
0260 lsass.exe 0 0 0
0268 lsm.exe 0 0 0
02d4 winlogon.exe 1 0 0
02f4 svchost.exe 0 0 0
0330 ATKFUSService.exe 0 0 0
0344 nvvsvc.exe 0 0 0
0360 nvSCPAPISvr.exe 0 0 0
038c svchost.exe 0 0 0
03c8 atiesrxx.exe 0 0 0
03f8 svchost.exe 0 0 0
014c svchost.exe 0 0 0
0298 svchost.exe 0 0 0
0228 svchost.exe 0 0 0
0454 audiodg.exe 0 0 0
04ac SavService.exe 0 0 0
04b8 atieclxx.exe 1 0 0
04c8 nvxdsync.exe 1 0 0
04d0 nvvsvc.exe 1 0 0
0614 ATKFastUserSwitching.exe 1 18 11 normal
0660 dwm.exe 1 18 2 high
0678 explorer.exe 1 356 266 normal
0790 svchost.exe 0 0 0
07e4 svchost.exe 0 0 0
0490 spoolsv.exe 0 0 0
082c taskhost.exe 1 25 23 normal
08d0 NvTmru.exe 1 9 4 normal C:\Program Files (x86)\NVIDIA Corporation\NVIDIA Update Core
0924 NvBackend.exe 1 9 4 normal C:\Program Files (x86)\NVIDIA Corporation\Update Core
0944 ANIWConnService.exe 0 0 0
0980 ANIWZCSdS.exe 0 0 0
099c RtlService.exe 0 0 0
09dc flux.exe 1 22 13 normal C:\Users\<...>\AppData\Local\FluxSoftware\Flux
09f4 SpotifyWebHelper.exe 1 9 3 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
0a3c nvtray.exe 1 81 5 normal
0a74 BCUService.exe 0 0 0
0aac FABS.exe 0 0 0
0ae0 RtWLan.exe 1 0 0
0b48 NvNetworkService.exe 0 0 0
0ba8 nvstreamsvc.exe 0 0 0
0610 spotify.exe 1 222 81 normal C:\Users\<...>\AppData\Roaming\Spotify
046c razerhid.exe 1 9 5 normal C:\Program Files (x86)\Razer\Arctosa
09c8 BCU.exe 1 9 4 normal C:\Program Files (x86)\DeviceVM\Browser Configuration Utility
0b9c jusched.exe 1 9 2 normal C:\Program Files (x86)\Common Files\Java\Java Update
0b84 PnkBstrA.exe 0 0 0
0910 PnkBstrB.exe 0 0 0
0920 SAVAdminService.exe 0 0 0
09d4 ALsvc.exe 0 0 0
0c70 swc_service.exe 0 0 0
0c98 svchost.exe 0 0 0
0cac swi_service.exe 0 0 0
0cec TurboBoost.exe 0 0 0
0d30 ALMon.exe 1 47 40 normal C:\Program Files (x86)\Sophos\AutoUpdate
0d60 WLIDSVC.EXE 0 0 0
0e04 WLIDSVCM.EXE 0 0 0
0efc WmiPrvSE.exe 0 0 0
0ff0 SearchIndexer.exe 0 0 0
0af0 svchost.exe 0 0 0
11b8 nvstreamsvc.exe 1 0 0
11cc conhost.exe 1 0 0
127c wmpnetwk.exe 0 0 0
130c svchost.exe 0 0 0
11d0 svchost.exe 0 0 0
1304 SpotifyHelper.exe 1 52 1 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
1134 SpotifyHelper.exe 1 33 1 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
15c8 SpotifyHelper.exe 1 13 3 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
17a8 dllhost.exe 0 0 0
151c LMS.exe 0 0 0
14b0 svchost.exe 0 0 0
1018 UNS.exe 0 0 0
059c SpotifyHelper.exe 1 142 1 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
08d8 SpotifyHelper.exe 1 11 1 normal C:\Users\<...>\AppData\Roaming\Spotify\Data
0abc chrome.exe 1 375 53 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
0eb4 chrome.exe 1 12 5 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
12d8 chrome.exe 1 11 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
0da8 chrome.exe 1 719 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
10bc chrome.exe 1 11 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
1114 chrome.exe 1 9 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
0968 chrome.exe 1 11 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
1220 chrome.exe 1 10 1 normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
1974 jucheck.exe 1 12 6 normal C:\Program Files (x86)\Common Files\Java\Java Update
0778 chrome.exe 1 251 1 below normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
1144 WINWORD.EXE 1 474 118 normal C:\Program Files (x86)\Microsoft Office\Office14
0cc4 OSPPSVC.EXE 0 0 0
17b8 splwow64.exe 1 4 2 normal
1410 SearchProtocolHost.exe 0 0 0
1258 SearchFilterHost.exe 0 0 0 idle
18e0 chrome.exe 1 209 1 below normal C:\Users\<...>\AppData\Local\Google\Chrome\Application
18c0 <...>.exe 1 36 34 normal C:\<...>
cpu registers:
eax = 00000000
ebx = 00000000
ecx = 00000000
edx = 00000008
esi = 0018fca4
edi = 077d2d6c
eip = 077d2d6c
esp = 0018fc60
ebp = 077d2444
stack dump:
0018fc60 a4 fc 18 00 44 24 7d 07 - 6c 2d 7d 07 44 24 00 06 ....D$}.l-}.D$..
0018fc70 2c 63 de 6e 48 81 7d 07 - 6c 2d 7d 07 00 00 00 00 ,c.nH.}.l-}.....
0018fc80 01 00 00 00 00 00 00 00 - ac fc 18 00 42 00 d2 6e ............B..n
0018fc90 6c 2d 7d 07 01 00 00 00 - 58 25 7d 07 44 24 7d 07 l-}.....X%}.D$}.
0018fca0 3c 27 7d 07 3c 27 7d 07 - 3c a6 d0 6e c0 fc 18 00 <'}.<'}.<..n....
0018fcb0 1b ff d1 6e 6c 2d 7d 07 - 44 24 7d 07 a0 00 00 00 ...nl-}.D$}.....
0018fcc0 cc fc 18 00 43 25 d1 6e - 3c 27 7d 07 e0 fc 18 00 ....C%.n<'}.....
0018fcd0 6d 6d d1 6e fc 26 7d 07 - 00 00 00 00 3c 24 7d 07 mm.n.&}.....<$}.
0018fce0 ec fc 18 00 f1 26 d1 6e - 10 24 7d 07 f8 fc 18 00 .....&.n.$}.....
0018fcf0 52 c1 d4 6e 3c 24 7d 07 - 14 fd 18 00 5f 39 d1 6e R..n<$}....._9.n
0018fd00 10 24 7d 07 04 34 d1 6e - 10 24 7d 07 66 38 d1 6e .$}..4.n.$}.f8.n
0018fd10 10 24 7d 07 28 fd 18 00 - 5f 34 d1 6e 00 00 00 00 .$}.(..._4.n....
0018fd20 16 00 00 00 90 05 00 00 - 34 fd 18 00 c5 25 d1 6e ........4....%.n
0018fd30 10 24 7d 07 40 fd 18 00 - d1 f5 d4 6e 3c 27 7d 07 .$}.@......n<'}.
0018fd40 84 fd 18 00 2b e0 40 00 - 74 27 7d 07 80 fd 18 00 ....+.@.t'}.....
0018fd50 2a af 96 00 60 fd 18 00 - 9c 98 40 00 84 fd 18 00 *...`.....@.....
0018fd60 6c fd 18 00 9c 98 40 00 - 84 fd 18 00 94 fd 18 00 l.....@.........
0018fd70 9c 98 40 00 84 fd 18 00 - a0 00 00 00 00 00 75 60 ..@...........u`
0018fd80 00 00 00 00 bc fd 18 00 - 5e 65 97 00 71 0c 99 00 ........^e..q...
0018fd90 15 63 9d 00 10 fe 18 00 - 9c 98 40 00 bc fd 18 00 .c........@.....
disassembling:
[...]
0040e01c jz loc_40e02c
0040e01e mov dword ptr [eax], 0
0040e024 push eax
0040e025 push edx
0040e026 mov eax, [edx]
0040e028 > call dword ptr [eax+8]
0040e02b pop eax
0040e02c ret
这绝不是在所有机器上发生，但似乎是一个非常罕见的问题。
编辑：
根据@Graymatter的建议，我已经能够建立SSCCE。
program SSCCE;
{$APPTYPE CONSOLE}
{$R *.res}
uses System.SysUtils, FMX.Context.DX10;
begin
try
TCustomDX10Context.CheckDevice;
WriteLn('Everything went fine, guess we have to dig deeper.');
except
on E: Exception do Writeln(E.ClassName, ': ', E.Message);
end;
Write('Press enter to exit.');
ReadLn;
end.
产生的输出是Zugriffsverletzung bei Adresse 05C1006C. Lesen von Adresse 06F29ED3有关如何处理的任何建议吗？