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Vista Tutorial - VPC IM driver(VMNetSrv.sys) race condition with nVidia nForce Ethe

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Old 11-21-2008   #1 (permalink)
Hao Zhuang
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VPC IM driver(VMNetSrv.sys) race condition with nVidia nForce Ethe

hello group,

i believe there is a race bug during initialization in either VMNetSrv.sys
or the nForce Gigabit Ethernet device driver (nvmfdx32.sys 1.00.01.06772)
that causes frequent network connection failure on system boot up. and only
after a few reboots the connection could come up ok.

unbind VMNetSrv.sys (Virtual Machine Network Service) will fix this problem.
i then tried some other IM drivers and they worked ok with nForce driver. so
it looks to be more likely a VPC bug. this happens with both VPC 2007 SP1 and
pre SP1. also with Vista SP1 and RTM.

some more info can be found in: http://brute4s.com. i couldnt find the
appropriate MS connect group to file this bug so i'm putting it here.

- hao

My System SpecsSystem Spec
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