Re: Windows的登录界面是哪个进程维护的?

Windows内核调试

Windows的登录界面是哪个进程维护的?

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Thomson 2009-05-05, 22:54 下午

我在xp下面遇到一个问题,系统在欢迎窗口hang了,鼠标,键盘都没有响应(其实响应是beep音),但是可以用键盘手动制造一个bugcheck,另外,重启问题消失,,,,偶尔会重现...

这个界面是由winlogon维护的吗?

Re: Windows的登录界面是哪个进程维护的?

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格蠹老雷 2009-05-05, 22:59 下午
是的

Re: Windows的登录界面是哪个进程维护的?

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Thomson 2009-05-05, 23:06 下午
张老师能否再详细介绍一下,下面是我从dump里面拿到的winlogon的第一个thread的stack,从这个,能看出来,这个时候,UI hang住了吗?

THREAD 82eb5a90 Cid 02cc.02d0 Teb: 7ffdd000 Win32Thread: e17d56b0 WAIT: (WrUserRequest) UserMode Non-Alertable
8370e980 SynchronizationEvent
IRP List:
8379e988: (0006,0094) Flags: 00000800 Mdl: 00000000
Not impersonating
DeviceMap e1005450
Owning Process 82eb5d08 Image: winlogon.exe
Attached Process N/A Image: N/A
Wait Start TickCount 2974 Ticks: 1562 (0:00:00:24.406)
Context Switch Count 1044 LargeStack
UserTime 00:00:00.015
KernelTime 00:00:00.125
Start Address winlogon!__report_gsfailure (0x0103d353)
Stack Init f827f000 Current f827ecb0 Base f827f000 Limit f827a000 Call 0
Priority 15 BasePriority 15 PriorityDecrement 0 DecrementCount 0
ChildEBP RetAddr
f827ecc8 804dd0f7 nt!KiSwapContext+0x2e (FPO: [Uses EBP] [0,0,4])
f827ecd4 804dd143 nt!KiSwapThread+0x46 (FPO: [0,0,0]) (CONV: fastcall)
f827ecfc bf802f60 nt!KeWaitForSingleObject+0x1c2 (FPO: [Non-Fpo]) (CONV: stdcall)
f827ed38 bf803766 win32k!xxxSleepThread+0x192 (FPO: [Non-Fpo]) (CONV: stdcall)
f827ed4c bf803783 win32k!xxxRealWaitMessageEx+0x12 (FPO: [Non-Fpo]) (CONV: stdcall)
f827ed5c 804df7ec win32k!NtUserWaitMessage+0x14 (FPO: [0,0,0]) (CONV: stdcall)
f827ed5c 7c92eb94 nt!KiFastCallEntry+0xf8 (FPO: [0,0] TrapFrame @ f827ed64)
0006f48c 77d19418 ntdll!KiFastSystemCallRet (FPO: [0,0,0])
0006f4c4 77d2593f USER32!NtUserWaitMessage+0xc (CONV: stdcall)
0006f4ec 77d25981 USER32!InternalDialogBox+0xd0 (FPO: [Non-Fpo]) (CONV: stdcall)
0006f50c 77d2559e USER32!DialogBoxIndirectParamAorW+0x37 (FPO: [Non-Fpo]) (CONV: stdcall)
0006f530 0103cfbe USER32!DialogBoxParamW+0x3f (FPO: [Non-Fpo]) (CONV: stdcall)
0006f554 0102cab7 winlogon!Fusion_DialogBoxParam+0x24 (FPO: [Non-Fpo])
0006f590 0103b13d winlogon!TimeoutDialogBoxParam+0x28 (FPO: [Non-Fpo])
0006f5c8 758d7a73 winlogon!WlxDialogBoxParam+0x80 (FPO: [Non-Fpo])
0006f5fc 758d772e MSGINA!Logon+0x12b (FPO: [Non-Fpo])
0006f658 010345ab MSGINA!WlxLoggedOutSAS+0x8f (FPO: [Non-Fpo])
0006fcd8 01037791 winlogon!LogonAttempt+0x162 (FPO: [Non-Fpo])
0006fcfc 010315d5 winlogon!MainLoop+0x1cf (FPO: [Non-Fpo])
0006ff50 0103d4d0 winlogon!WUNotify+0x68f (FPO: [Non-Fpo])
0006fff4 00000000 winlogon!__report_gsfailure+0x271 (FPO: [Non-Fpo])

Re: Windows的登录界面是哪个进程维护的?

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格蠹老雷 2009-05-06, 13:36 下午
这个栈回溯看起来没有异常，WinLogon正使用默认的GINA模块（msgina.dll）来呈现登录对话框，等待窗口消息。