Embedded breakpoint in Win2K SP0/1 free?

OSR_Community_User · January 3, 2002, 6:04am

Hi,

I’ve got windbg hooked up to Win2K SP0/SP1 free and was doing
some random network fsd testing and got hit with a really annoying
breakpoint.
If you bring up explorer or My Computer and right click on any
file on a network file system drive, windbg wakes up with the
breakpoint below. “Go”-ing from there seems to work ok. Doesn’t
occur for non-network file systems.

Anyone else seen something like this? There a workaround?
Or is just me?

Pete

ChildEBP RetAddr Args to Child
77e86947 000018a1 084d8b00 5d344889 330004c2 ntdll!DbgBreakPoint
fbfaa90c 80430a2a fbfaa9cc fbfaa9c4 00000000 ntoskrnl!KiCallUserMode+0x4
fbfaa970 a0068b06 00000002 fbfaa9a0 00000018
ntoskrnl!KeUserModeCallback+0xa6
fbfaac00 a0068c57 a0337c00 0000007b 000b0102 win32k!SfnDWORD+0xc2
fbfaac58 a0068b8b a0337c00 0000007b 000b0102
win32k!xxxSendMessageTimeout+0x2c7
fbfaac78 a0014fdf a0337c00 0000007b 000b0102 win32k!xxxSendMessage+0x1a
fbfaacdc a0013426 a032d2c8 0000007b 000b0102 win32k!xxxDefWindowProc+0x7db
fbfaacf0 a00691aa a032d2c8 0000007b 000b0102
win32k!xxxWrapDefWindowProc+0x15
fbfaad0c a0013491 a032d2c8 0000007b 000b0102 win32k!NtUserfnDWORD+0x25
fbfaad40 804649a1 000b0102 0000007b 000b0102 win32k!NtUserMessageCall+0x89
fbfaad40 77e1392f 000b0102 0000007b 000b0102 ntoskrnl!KiSystemService+0xc4
05e3fa0c 77e14793 000b0102 0000007b 000b0102 0x77e1392f
05e3fb90 77e12e98 000b0102 0000007b 000b0102 0x77e14793
05e3fbb0 77e14876 77b637b5 000b0102 0000007b 0x77e12e98
05e3fbe0 77e15b27 0045d2c8 0000007b 000b0102 0x77e14876
05e3fc00 77b8b96c 000b0102 0000007b 000b0102 0x77e15b27
05e3fc80 77b6fca2 000b0102 00000002 00000021 0x77b8b96c
05e3fca0 77b64171 000f1078 00000000 00000021 0x77b6fca2
05e3fe10 77e12e98 000b0102 00000204 00000002 0x77b64171
05e3fe30 77e130e0 77b637b5 000b0102 00000204 0x77e12e98

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OSR_Community_User · January 3, 2002, 4:00pm

So what? This is SendMessage() path.

Max

----- Original Message -----
From: “Pete Nishimoto”
To: “NT Developers Interest List”
Sent: Thursday, January 03, 2002 1:59 PM
Subject: [ntdev] Embedded breakpoint in Win2K SP0/1 free?

> Hi,
>
> I’ve got windbg hooked up to Win2K SP0/SP1 free and was doing
> some random network fsd testing and got hit with a really annoying
> breakpoint.
> If you bring up explorer or My Computer and right click on any
> file on a network file system drive, windbg wakes up with the
> breakpoint below. “Go”-ing from there seems to work ok. Doesn’t
> occur for non-network file systems.
>
> Anyone else seen something like this? There a workaround?
> Or is just me?
>
> Pete
>
> ChildEBP RetAddr Args to Child
> 77e86947 000018a1 084d8b00 5d344889 330004c2 ntdll!DbgBreakPoint
> fbfaa90c 80430a2a fbfaa9cc fbfaa9c4 00000000 ntoskrnl!KiCallUserMode+0x4
> fbfaa970 a0068b06 00000002 fbfaa9a0 00000018
> ntoskrnl!KeUserModeCallback+0xa6
> fbfaac00 a0068c57 a0337c00 0000007b 000b0102 win32k!SfnDWORD+0xc2
> fbfaac58 a0068b8b a0337c00 0000007b 000b0102
> win32k!xxxSendMessageTimeout+0x2c7
> fbfaac78 a0014fdf a0337c00 0000007b 000b0102 win32k!xxxSendMessage+0x1a
> fbfaacdc a0013426 a032d2c8 0000007b 000b0102 win32k!xxxDefWindowProc+0x7db
> fbfaacf0 a00691aa a032d2c8 0000007b 000b0102
> win32k!xxxWrapDefWindowProc+0x15
> fbfaad0c a0013491 a032d2c8 0000007b 000b0102 win32k!NtUserfnDWORD+0x25
> fbfaad40 804649a1 000b0102 0000007b 000b0102 win32k!NtUserMessageCall+0x89
> fbfaad40 77e1392f 000b0102 0000007b 000b0102 ntoskrnl!KiSystemService+0xc4
> 05e3fa0c 77e14793 000b0102 0000007b 000b0102 0x77e1392f
> 05e3fb90 77e12e98 000b0102 0000007b 000b0102 0x77e14793
> 05e3fbb0 77e14876 77b637b5 000b0102 0000007b 0x77e12e98
> 05e3fbe0 77e15b27 0045d2c8 0000007b 000b0102 0x77e14876
> 05e3fc00 77b8b96c 000b0102 0000007b 000b0102 0x77e15b27
> 05e3fc80 77b6fca2 000b0102 00000002 00000021 0x77b8b96c
> 05e3fca0 77b64171 000f1078 00000000 00000021 0x77b6fca2
> 05e3fe10 77e12e98 000b0102 00000204 00000002 0x77b64171
> 05e3fe30 77e130e0 77b637b5 000b0102 00000204 0x77e12e98
>
>
> —
> You are currently subscribed to ntdev as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to leave-ntdev-$subst(‘Recip.MemberIDChar’)@lists.osr.com
>

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