Bluescreen BAD_POOL_HEADER

asked 2019-01-05 13:17:31 +0200

fw-contiva
1 ●1 ●2 ●4

Hello,

I'm trying to use OVN with Windows. With the latest beta of the driver I was able to send traffic from the VM to the host and even to reach the Internet (with Windows NAT).

But the host dumps with Bluescreen BADPOOLHEADER very quickly during real network traffic.

From the dump it look to be related to this commit https://github.com/cloudbase/ovs/commit/9706b10bd0025fae04f97134bc80506f17fb09f2#diff-04223498359d029bea39518e20073d82L1670

Dump Stack Trace:

nt!KeBugCheckEx

nt!ExFreePoolWithTag+0x10cc

ndis!NdisFreeFragmentNetBufferList+0x2be

ndis!NdisGetDeviceReservedExtension+0x4fe1

ndis!NdisAdvanceNetBufferListDataStart+0x32

OVSExt!OvsCompleteNBL+0xd7 [c:\build\openvswitch_branch-2.9-cloudbase\build\ovs\datapath-windows\ovsext\buffermgmt.c @ 1670]

OVSExt!OvsCompleteNBLIngress+0x3a [c:\build\openvswitch_branch-2.9-cloudbase\build\ovs\datapath-windows\ovsext\packetio.c @ 434]

ndis!NdisMSendNetBufferListsComplete+0x179

vmswitch+0x18486

vmswitch+0x17778 ndis!NdisReturnNetBufferLists+0x553

answered 2019-01-06 15:31:43 +0200

aserdean
273 ●1 ●4

Hi Frank,

Thanks a lot for the bug report. That commit that you pointed is fine though.

I figured out what happened when you did your initial post: https://ask.cloudbase.it/question/289... and did a few changes that I have been testing since Friday.

I committed the changes about an hour ago. A new beta installer should be up now that should fix the issues you are encountering.

Please uninstall, remove the all the OVS driver information as per: https://ask.cloudbase.it/question/289... answer, and install using the installer which should have the timestamp of today:

Jan  6 14:45 openvswitch-hyperv-installer-beta.msi

Please let me know if that fixes the issues you encountered.

Alin.

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Comments

Thanks for the update. Unfortunately it didn't help. The driver file stored at c:\Windows\System32\drivers\ovsext.sys has a timestamp 06.01.19 - 14:47 so this is updated by the installed as it should.

fw-contiva ( 2019-01-07 11:59:01 +0200 )edit

I have created a gist with the full dmp Analysis: https://gist.github.com/fw2568/a8d0083023c4a4c59e4dc61889e33167 .

fw-contiva ( 2019-01-07 11:59:36 +0200 )edit

Hmmm. The dump unfortunately is not very helpful in this case. Can you share the ovsdb config and rules? I'll try to replicate your findings. Also can you try using the http://cloudbase.it/downloads/openvswitch-windows-installer-beta-2.7.msi to see if the same issue occurs?

aserdean ( 2019-01-07 14:54:58 +0200 )edit

Hey, we are comming closer. With the 2.7 beta the entire scenario works (traffic over OVN and no Bluescreen). I'm currently creating a powershell script with the entire setup and will post it later. Thanks so far, Frank

fw-contiva ( 2019-01-07 16:12:38 +0200 )edit

Thanks a lot. If I can replicate the bug it will be a lot easier to fix. I will try to figure out what happened between the branches.

aserdean ( 2019-01-07 16:46:08 +0200 )edit

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