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Archive for November, 2013

FreeBSD ZFS mmap corruption fix

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Recently there was a corruption bug fixed in FreeBSD when running with ZFS the fix corrects the boundaries of the cleared range in page_busy.
The main patch required is:
* r258353

For those running FreeBSD 8.3 the following two patches are also required:
* r248946
* r248960

Written by Dilbert

November 24th, 2013 at 5:09 pm

Posted in FreeBSD,ZFS

Installing Intel 82579V drivers on Windows 2008 R2

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We recently found ourselves trying to install Windows 2008R2 on a 2 year old Intel Sandy Bridge system with an Intel 82579V onboard network card.

As part of the install, we pushed out the standard Intel ProWinx64 drivers, along with Intel Chipset Software installer to install all missing drivers.
Annoyingly this left us without a working network card, which is slightly bit problematic when trying to finish off the install remotely.

After debugging and searching on google we found this thread on the Microsoft Technet forums where the user MGerio is having a very similar issue to ourselves.

It turns out the fix is to extract the ProWinx64.exe file to a folder on the desktop and update a single inf file:

Edit PRO1000\Winx64\NDIS62\e1c62x64.inf
Find the following section

ExcludeFromSelect = \

This needs replacing with just:

ExcludeFromSelect =

Further down in this file, you’ll need to update the [Intel.NTamd64.6.1] block to also include:

; DisplayName Section DeviceID
; ----------- ------- --------
%E1502NC.DeviceDesc% = E1502, PCI\VEN_8086&DEV_1502
%E1503NC.DeviceDesc% = E1503.6.1.1, PCI\VEN_8086&DEV_1503

Following on from this, you should be able to run APPS\PROSETDX\Winx64\DxSetup.exe
This will then do the install with the local edited files and install the missing drivers

Written by Dan Offord

November 22nd, 2013 at 5:11 pm

Posted in Networking,Windows

Tagged with , ,

Adding a certificate to certdata.txt

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First off you’ll need addbuiltin, which is part of nss tools.

On FreeBSD this is built but not installed as part of /usr/ports/security/nss.

Next you’ll need your cert in der format. If you have the cert in pem format openssl can convert it for you:

openssl x509 -in cert.crt -outform der -out cert.der

Finally append your certificate to certdata.txt using:

addbuiltin -n "Nickname for Certificate" -t "CT,C,C" < cert.der >> certdata.txt

Written by Dilbert

November 20th, 2013 at 10:45 am

Posted in FreeBSD

Fix for MMC could not create snap-in for Group Policy Object editor

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If when you run gpedit.msc you just get the following error

MMC could not create snap-in because of the current user policies.
Name: Group Policy Object editor
CLSID :{8FC0B734-A0E1-11D1-A7D3-0000F87571E3}

The one reason is that the Group Policy Object editor has been restricted for the current user. You can check and possibly change this with the registry entry:


If the value of Restrict_Run is 1 then you will get the error, if you have enough permissions simply setting it to 0 will allow you to run the Group Policy Object Editor without any further issues.

Written by Dilbert

November 10th, 2013 at 10:57 pm

Posted in Windows