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Subject: Re: Win32 CIPE on windows 2000 SP2(3) - crashing.
From: Damion Wilson <dwilson,AT,ibl,DOT,bm>
Date: Wed, 9 Oct 2002 15:35:02 +0200
In-reply-to: <Pine.LNX.4.44.0210041357570.14967-100000@server2.del>

You're right, of course. There is a problem in the adapter driver. The BSOD 
error tells me that the driver tried to cancel an I/O request that had 
already been completed. I'll have to find out how that can happen

DKW

On Wednesday 09 October 2002 08:25 am, Vladimir Michl wrote:
> Result when running in console mode.
>
> If I run VNC over CIPE tunnel (timeout 60, no encryption) over udptunnel
> in VNC I see window of udptunnel (this report messages about received
> and send packets, and if vieved in VNC which traffic go through this
> udptunnel it is good tunnel traffic test).
>
> If it is run some time (in minutes) one side of tunnel hang.
>
> On cipsrvr console view I see, that CT_PING packets and keys are normaly
> exchanged between CIPE servers. But if I ping through tunnel, hang host
> (CIPE) not send any data to udptunnel.
>
> If I now close cipsrvr, it run stop script, now some timeout (10 seconds)
> and windows go to blue screen with:
>
> CANCEL_STATE_IN_COMPLETED_IRP
> 0x00000048 (0x81b5aca8, 0, 0, 0)
>
> This is on Windows 2000. If hang Windows NT, the result is the same, blue
> screen, but I don't know message, because I have turned on restarting
> after STOP error.
>
> If I run cipsrvr.exe under debugger from MS VC 5.0. The result is the
> same. Blue screen.
>
> I thing that error is somewhere in kernel adapter driver.
>
> Vladimir Michl
>
> On Thu, 3 Oct 2002, Damion Wilson wrote:
> > I can't say what might be happening.
> >
> > If you download a copy of Mark Russinovich's DbgView and run it on both
> > hosts, you can see  the messages that the service is emitting about
> > what's going on during these events. Let me know what they report. You
> > can disable the service and run cipsrvr.exe from the console with
> > "cipsrvr console" and then run Microsoft's debugger on it. When it
> > crashes, we can look at the stack trace.
> >
> > Also, don't hesitate to submit queries to cipe-l,AT,inka,DOT,de, a lot of 
> > the
> > people in the Cipe community are extremely clued in about these kinds of
> > things.;
> >
> > DKW
> >
> > On Thursday 03 October 2002 09:06 am, you wrote:
> > > Hello Damion,
> > >
> > > I am using Cipe-win32 v2.0-pre14 ON wINDOWS 2000 SP2 - now SP3 (Czech
> > > language version).
> > >
> > > When I have CIPE auto running after Windows startup, Cipe adapter
> > > service One or mote times crash and then run.
> > >
> > > Because I require tunnel connection throw firewall, I using udptunnel
> > > (attached) that listen on UDP port and than send packets over TCP
> > > connection. When write to TCP connection report EWOULDBLOCK, UDP
> > > packets is dropped.
> > >
> > > Here is schema:
> > >
> > > network -- CIPE -- udptunnel ------------- udptunnel -- CIPE -- network
> > >           Win 2000              tcp                   Win NT 4.0
> > >
> > >
> > > One end of tunnel is on WinNT 4.0 SP5 and other on Win2000SP3. On both
> > > ends some time adapter service crash and service manager restart it.
> > > I don't know how discover reason of this crash.
> > >
> > >
> > > udptunnel some time report that send UDP packet to CIPE end with error:
> > > Connection reset by peer (UDP connection is connected).
> > >
> > > Sometimes one end of cipe tunnel hang (under win2000 or WinNT). pinging
> > > from this host through tunnel not create any network traffic. Pinging
> > > from other end create network traffic. When I now want stop CIPE
> > > adapter service under win2000 and this cipe addapter is hanged, windows
> > > crash.
> > >
> > > How I may discover reason of this hangs and help fix it.
> > >
> > > Vladimir Michl
> > >
> > > -----------------------------------------------------------------------
> > >---- Vladimír Michl <Vladimir.Michl,AT,hlubocky,DOT,del,DOT,cz>
> > > Del a.s., Strojírenská 38, &Zcaron;&dcaron;ár nad Sázavou
> > > pobo&ccaron;ka Olomoucká 355, Hlubo&ccaron;ky-Mariánské Údolí
> > > tel: +420 585 353 548, fax: +420 585 352 364
> > > http://hlubocky.del.cz
>
> ---------------------------------------------------------------------------
> Vladimír Michl <Vladimir.Michl,AT,hlubocky,DOT,del,DOT,cz>
> Del a.s., Strojírenská 38, &Zcaron;&dcaron;ár nad Sázavou
> pobo&ccaron;ka Olomoucká 355, Hlubo&ccaron;ky-Mariánské Údolí
> tel: +420 585 353 548, fax: +420 585 352 364
> http://hlubocky.del.cz





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