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Date: Wed, 2 Mar 2011 05:13:55 -0600
Message-ID: <AANLkTinc9UjJ+aw_wREvtRGN01r-8mAx0hBpR41xHhCt@mail.gmail.com>
Subject: Re: 1.7.8-1 ls -l /proc/sys/Device causes system reset
From: Timothy Coalson <tsc5yc AT mst DOT edu>
To: cygwin <cygwin AT cygwin DOT com>
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On Wed, Mar 2, 2011 at 5:11 AM, Corinna Vinschen <address removed> wrote:
> On Mar =A02 04:23, Timothy Coalson wrote:
>> On Wed, Mar 2, 2011 at 2:40 AM, Corinna Vinschen
>> <address removed> wrote:
>> > On Mar =A01 16:41, Tim Coalson wrote:
>> >> I have found two culprits so far, SSHDRV65 and SSHDRV79. =A0They seem=
 to be
>> >> drivers related to CD copy protection software in windows.
>> >
>> > I *really* start to hate Windows XP.
>> >
>> > But I can't reproduce this, neither on XP nor on W7. =A0Maybe because
>> > I don't have these SSHDRVxx devices.
>> >
>> > What puzzles me a bit is this: =A0The core of the functionality is in
>> > a method called fhandler_procsys::exists(). =A0This method is called
>> > even for a simple ls which does not stat. =A0The underlying stat method
>> > fhandler_procsys::fstat() also just calls the exists() method and then
>> > fills the stat buffer.
>> >
>> > Hmm...
>> >
>> > There is one difference. =A0If exists() is called from fstat() then
>> > there's an additional call to fetch the ACL from the device entry.
>> > That's the only additional system call in this scenario.
>> >
>> > Can you please test something for me?
>> >
>> > Fetch the WinObj tool from sysinternals:
>> > http://technet.microsoft.com/en-us/sysinternals/bb896657
>> >
>> > Install it and start it. =A0In WinObj, open the Device directory and
>> > search for the SSHDRV65 and SSHDRV79 entries. =A0Right-click on them a=
nd
>> > open the Properties dialog. =A0Then switch to the "Security" tab.
>> > Does it work? =A0Does it show something useful or a kind of error mess=
age?
>> >
>> >
>> > Corinna
>> >
>>
>> I have switched to a different email so that I can reply properly.
>>
>> Using the tool mentioned, both of the problem devices' properties
>> dialogs appear to be functional. =A0[...]
>
> If I send you a link to a test Cygwin DLL via private email, would
> you mind to test it?
>
>
> Corinna

Sure, either email should work.

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