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Date:	Mon, 7 Aug 2023 13:23:43 +0200
To:	Cedric Blancher <cedric DOT blancher AT gmail DOT com>
Subject:	Re: Kernel stack trace for Winows 10 blue screen when running Cygwin?
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From:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
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Cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>, cygwin AT cygwin DOT com
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On Aug  7 12:43, Cedric Blancher via Cygwin wrote:
> On Mon, 7 Aug 2023 at 11:55, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
> >
> > On Aug  7 11:29, Cedric Blancher via Cygwin wrote:
> > > Forwarding to cygwin AT cygwin DOT com
> > >
> > > Honestly I find it deeply concerning that a plain, unprivileged user
> > > can Bluescreen a machine, and more so that it happens during normal
> > > Cygwin usage.
> >
> > Same here.  Cygwin is userspace only!
> >
> > If any call in Cygwin can generate a bluescreen, it's a bug in the
> > kernel or in the driver.  Naturally, we have neither control over the
> > kernel, nor over the NTFS driver.  You might want to open a support case
> > with Microsoft.
> 
> Well, a colleague is handling that. The feedback sent to her however was that:
> - Cygwin is not a Windows product
> - We should WSL instead
> - Cygwin might make use private Windows apis
> - We should run this by the "Cygwin company"

ROFL

> It is my turn now to provide a kernel stack trace to prove them wrong
> - IF I can manage to make one. That's why I am asking for help here.
> 
> HELP!

I'd start with running the crashing process under strace.  This might
give a clue as to what or why it's happening.  Be aware that an strace
might be *very* big in your case, and that running under strace might
take a *very* long time.

Apart from that, I'm not really familiar with catching OS kernel dumps,
but the dumper and minidumper tools in Cygwin might be of help, see the
docs:

https://cygwin.com/cygwin-ug-net/dumper.html
https://cygwin.com/cygwin-ug-net/minidumper.html


Corinna

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