Hi.
A small update for this issue. Before updating Windows 1709 I’ve tested
with a 16299.371 version and there was a hang on a mini-filter unload (like
with any previous 16299.x). But after upgrading to 16299.402 (KB4093105)
the issue is now fixed.
https://support.microsoft.com/en-us/help/4093105
“Addresses an issue that may cause a file system mini-filter to fail to
unload because of a leak in Filter Manager, which requires a restart.”
Regards,
Krystian Bigaj
On Tue, Oct 31, 2017 at 7:33 AM, Krystian Bigaj
wrote:
> Thanks for clarify.
> I’ve also check the result of a FltDeleteInstanceContext call inside
> InstanceSetup, and it’s STATUS_SUCCESS, but it hangs on a
> FltUnregisterFilter call.
>
> However if possible, I would like to get any comment from the
> Microsoft/FltMgr Team about that issue.
>
> Regards,
> Krystian Bigaj
>
> On 30 October 2017 at 20:09, Scott Noone <
> xxxxx@lists.osr.com> wrote:
>
>> Sorry, that wasn’t clear…I did the analysis with your original sample,
>> not with my proposed “nature study” addition. Once you indicated that the
>> FltDeleteContext didn’t fix it I dismissed it as a viable workaround.
>>
>> I agree with your conclusion and I think the best thing to do is just
>> avoid setting the context unless you’re going to succeed the callback.
>>
>>
>> -scott
>> OSR
>> @OSRDrivers
>>
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