The shlwapi:istream tests and Microsoft Security Essentials

[Paul Vriens]

On 03/16/2010 03:56 PM, Paul Vriens wrote:
> On 03/16/2010 03:20 PM, Reece Dunn wrote:
>> On 16 March 2010 13:27, Paul Vriens<paul.vriens.wine at gmail.com> wrote:
>>> Hi,
>>>
>>> I was wondering why I (out of all those boxes) had several failures for
>>> these tests on some of my XP and Vista boxes.
>>
>> I was wondering the same.
>>
>>> Turns out that you get these failures when MSE is active. I just ran the
>>> tests on a clean XP-SP3 box (up-to-date) and no failures. Installing MSE
>>> (and downloading the latest signatures) is enough to show a multitude of
>>> test failures. Turning 'real time monitoring' off or excluding the test
>>> executable makes the tests succeed again.
>>>
>>> Most of the failures are of the E_ACCESSDENIED nature btw.
>>
>> This is interesting. I wonder if it is because MSE is locking the file
>> so it can scan it for viruses, so when the next test gets run, the
>> istream test cannot access that file and so gets an E_ACCESSDENIED
>> back.
>
> I never had this issue with either "Microsoft Defender" or the Avast!
> Home Edition virus scanner.
>
>>
>>> Does this make sense?
>>
>> Yes.
>>
>>> If the test failures are valid, should I change the tests to cope
>>> with this?
>>
>> The test failures look valid in this case (MSE may be installed on a
>> test system), so a change similar to
>> http://source.winehq.org/git/wine.git/?a=commitdiff;h=1571337c0366b27e819851d7cdec4a7bc1ce7690
>>
>> should be done.
>
> The thing is that depending on the mode/flag the failures start at a
> different place. I'll see if I can create something generic or whether
> the flags indicate something (don't think so as several runs produces
> different output).
>

The attached patch fixes the issue on my boxes. Looks like it's just a 
timing issue (MSE being sllloooowww I guess).

I should maybe raise the timeout to something higher, it's only 
affecting a handful of boxes anyway?

-- 
Cheers,

Paul.
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