Re: [boost] [interprocess] SHARING_VIOLATION due to antivirus

Subject: Re: [boost] [interprocess] SHARING_VIOLATION due to antivirus
From: Lars Hagstrom (lars_at_[hidden])
Date: 2009-08-19 01:07:37

Yes, of course it is due to bad AV. But for me it would still be handy 
if boost.interprocess was a little bit more tolerant towards that. If my 
software crashes it will be perceived as buggy, however much I blame AV...

Did you have a look at the MS article? You'll notice that they describe 
this as a general problem, not only with a specific AV product.

/Lars

OvermindDL1 wrote:
> On Tue, Aug 18, 2009 at 1:09 PM, Lars Hagstrom<lars_at_[hidden]> wrote:
>> Hi,
>>
>> I've discovered that there is some unfortunate interaction of
>> boost::interprocess and at least one antivirus product (ESET Nod32). The
>> problem manifests on some installations, and the symptom is that an
>> interprocess_exception with a native error code of 32
>> (ERROR_SHARING_VIOLATION) occurs when a named_semaphore (or other named
>> objects) are opened (well, I've only seen it when opening, but depending on
>> the AV product I guess it may happen when creating as well).
>>
>> Googling a bit on this I found http://support.microsoft.com/kb/316609, which
>> suggests that AV products take exclusive locks on files just as a file is
>> being opened, which sometimes upsets calls to CreateFile. What they suggest
>> is doing retries when a sharing violation occurs.
>>
>> I'm not really saying that this is a boost.interprocess bug, but at least
>> for me it would be handy if it was a little bit more tolerant towards AV
>> products.
>>
>> I've managed (after quite a lot of hard work) to get a test environment
>> where I can reproduce this quite easily, so I'm more than willing to help
>> out with testing.
> 
> To me, that sounds like a bug in the AV product, since with the code
> you are only doing what you are supposed to be doing.  If the AV
> itself is acting like a virus and causes bugs like that, it is their
> fault.
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