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Re: [win-pv-devel] xenvif Win7 BSOD - DRIVER_POWER_STATE_FAILURE
Hello.
On Mon, 6 Feb 2017, Paul Durrant wrote:
On Mon, 6 Feb 2017, Paul Durrant wrote:
On Mon, 6 Feb 2017, Paul Durrant wrote:
Sent: 06 February 2017 09:36
I see. Well, if it is easy for you to reproduce, it would be worth
adding some debug to XENNET and XENVIF to figure out how many
buffers
are outstanding.
Badly reproducible. It happends after 2-3 hours of network streaming. I
try "iperf" or "copy network files" but this does not trigger problem.
What exactly you need to watch ?
So, clearly (from below) loaned > returned in XENVIF but the question
is, does XENNET think the same?
If it does then either something higher up the stack is holding onto the
packets or somehow XENVIF or XENNET leaked them.
Do you mean data in "_XENNET_ADAPTER" vs " _XENVIF_RECEIVER" ?
Local var @ 0xfffff8800235a9c0 Type _XENNET_ADAPTER*
0xfffffa80`081a2c40
+0x3a0 Receiver : 0xfffffa80`08195000 _XENNET_RECEIVER
+0x1418 Indicated : 0n462675
+0x141c Returned : 0n462627
Local var @ 0xfffff8800235a930 Type _XENVIF_RECEIVER*
0xfffffa80`08149670
+0x128 Loaned : 0n462675
+0x12c Returned : 0n462627
Seems to be symetric.
Ok, your code is recent enough for that. Good.
What next ?
Do you have any other filter drivers in your network stack? The data
suggests that something is holding onto two packets, but the question is
what is it?
Two packets ?
I suppose 462675-462627=48
(I have also second crash with Returned = 0n335903, Loaned = 0n514262 => 178359)
How to identify active filter drivers ?
I search registry for "FilterMediaTypes" ~ "ethernet":
ms_pacer = QoS Packet Scheduler
ms_wfplwf = WFP Lightweight Filter (M$ firewall is enabled)
MS_NDISCAP = NDIS Capture LightWeight Filter
Martin
Paul
Any more static analysis ?
Thanks for guiding,
Martin
Detailed dump:
--------------------------------------------------------------------
0: kd> .thread fffffa80069aeb50
Implicit thread is now fffffa80`069aeb50
0: kd> k n
*** Stack trace for last set context - .thread/.cxr resets it
# Child-SP RetAddr Call Site
00 fffff880`0235a610 fffff800`02c73e42 nt!KiSwapContext+0x7a
01 fffff880`0235a750 fffff800`02c851df nt!KiCommitThreadWait+0x1d2
02 fffff880`0235a7e0 fffff880`0547e968 nt!KeWaitForSingleObject+0x19f
03 fffff880`0235a880 fffff880`0549e961 xenvif!ReceiverWaitForPackets+0x278
[c:\users\admin\documents\xenvif\src\xenvif\receiver.c @ 3740]
04 fffff880`0235a930 fffff880`05d91386 xenvif!VifDisable+0x101
[c:\users\admin\documents\xenvif\src\xenvif\vif.c @ 270]
05 fffff880`0235a980 fffff880`05d99d5d xennet!AdapterDisable+0x96
[c:\users\admin\documents\xennet\src\xennet\adapter.c @ 1979]
06 fffff880`0235a9c0 fffff880`0170b649 xennet!MiniportShutdownEx+0x3d
[c:\users\admin\documents\xennet\src\xennet\miniport.c @ 284]
07 fffff880`0235aa00 fffff880`01715c81 ndis!ndisMShutdownMiniport+0xc9
08 fffff880`0235aa40 fffff880`016adfdf ndis!ndisSetPower+0x921
09 fffff880`0235ab00 fffff800`02d9d2a5 ndis!ndisPowerDispatch+0x1ef
0a fffff880`0235ab50 fffff800`02f19236 nt!PopIrpWorker+0x3c5
0b fffff880`0235ac00 fffff800`02c6f706 nt!PspSystemThreadStartup+0x5a
0c fffff880`0235ac40 00000000`00000000 nt!KxStartSystemThread+0x16
0: kd> .frame 3
03 fffff880`0235a880 fffff880`0549e961 xenvif!ReceiverWaitForPackets+0x278
[c:\users\admin\documents\xenvif\src\xenvif\receiver.c @ 3740]
0: kd> dt -r1 Receiver
Local var @ 0xfffff8800235a930 Type _XENVIF_RECEIVER*
0xfffffa80`08149670
+0x000 Frontend : 0xfffffa80`0815bad0 _XENVIF_FRONTEND
+0x000 Pdo : 0xfffffa80`08149db0 _XENVIF_PDO
+0x008 Path : 0xfffffa80`0746b0d0 "device/vif/0"
+0x010 Prefix : 0xfffffa80`0746d140 "attr/vif/0"
+0x018 State : 3 ( FRONTEND_CONNECTED )
+0x01c Online : 0x1 ''
+0x020 Lock : 0
+0x028 EjectThread : 0xfffffa80`07dd6b40 _XENVIF_THREAD
+0x030 EjectEvent : _KEVENT
+0x048 BackendPath : 0xfffffa80`0815b490
"/local/domain/0/backend/vif/5/0"
+0x050 BackendDomain : 0
+0x054 MaxQueues : 8
+0x058 NumQueues : 8
+0x05c Split : 0x1 ''
+0x060 DisableToeplitz : 0
+0x068 Mac : 0xfffffa80`07a8e580 _XENVIF_MAC
+0x070 Receiver : 0xfffffa80`08149670 _XENVIF_RECEIVER
+0x078 Transmitter : 0xfffffa80`08168880 _XENVIF_TRANSMITTER
+0x080 Controller : 0xfffffa80`0815a010 _XENVIF_CONTROLLER
+0x088 DebugInterface : _XENBUS_DEBUG_INTERFACE_V1
+0x0d8 SuspendInterface : _XENBUS_SUSPEND_INTERFACE_V1
+0x128 StoreInterface : _XENBUS_STORE_INTERFACE_V2
+0x1b0 SuspendCallbackEarly : 0xfffffa80`075812b0
_XENBUS_SUSPEND_CALLBACK
+0x1b8 SuspendCallbackLate : 0xfffffa80`075503e0
_XENBUS_SUSPEND_CALLBACK
+0x1c0 DebugCallback : 0xfffffa80`07df9720
_XENBUS_DEBUG_CALLBACK
+0x1c8 Watch : 0xfffffa80`07dfcb40 _XENBUS_STORE_WATCH
+0x1d0 Statistics : 0xfffffa80`08158010
_XENVIF_FRONTEND_STATISTICS
+0x1d8 StatisticsCount : 8
+0x1e0 MibThread : 0xfffffa80`07dd6a80 _XENVIF_THREAD
+0x1e8 Alias : [257] "P???"
+0x2ec InterfaceIndex : 0xf
+0x2f0 AddressTable : 0xfffffa80`067de410 _SOCKADDR_INET
+0x2f8 AddressCount : 4
+0x2fc Hash : _XENVIF_FRONTEND_HASH
+0x008 CacheInterface : _XENBUS_CACHE_INTERFACE_V1
+0x000 Interface : _INTERFACE
[snip]
+0x0b0 EvtchnInterface : _XENBUS_EVTCHN_INTERFACE_V5
+0x000 Interface : _INTERFACE
[snip]
+0x120 Ring : 0xfffffa80`07849140 -> 0xfffffa80`08170680
_XENVIF_RECEIVER_RING
+0x000 Receiver : 0xfffffa80`08149670 _XENVIF_RECEIVER
+0x008 Index : 0
+0x010 Path : 0xfffffa80`07571740 "device/vif/0/queue-0"
+0x018 Lock : 0
+0x020 PacketCache : 0xfffffa80`07a305f0 _XENBUS_CACHE
+0x028 FragmentCache : 0xfffffa80`079a8420 _XENBUS_CACHE
+0x030 GnttabCache : 0xfffffa80`07e05a10 _XENBUS_GNTTAB_CACHE
+0x038 Mdl : 0xfffffa80`07def440 _MDL
+0x040 Front : netif_rx_front_ring
+0x058 Shared : 0xfffff880`04e41000 netif_rx_sring
+0x060 Entry : 0xfffffa80`07e14ce8 _XENBUS_GNTTAB_ENTRY
+0x068 Channel : 0xfffffa80`07dfad10 _XENBUS_EVTCHN_CHANNEL
+0x070 Dpc : _KDPC
+0x0b0 Dpcs : 0x1815
+0x0b8 Timer : _KTIMER
+0x0f8 TimerDpc : _KDPC
+0x138 Events : 0x1815
+0x140 Pending : [256] 0xfffffa80`07e10558
_XENVIF_RECEIVER_FRAGMENT
+0x940 RequestsPosted : 0x358a
+0x944 RequestsPushed : 0x358a
+0x948 ResponsesProcessed : 0x348a
+0x94c Connected : 0x1 ''
+0x94d Enabled : 0 ''
+0x94e Stopped : 0 ''
+0x950 OffloadOptions : _XENVIF_VIF_OFFLOAD_OPTIONS_V1
+0x954 BackfillSize : 0
+0x958 DebugCallback : 0xfffffa80`07dd7770
_XENBUS_DEBUG_CALLBACK
+0x960 WatchdogThread : 0xfffffa80`07a8de60 _XENVIF_THREAD
+0x968 PacketList : _LIST_ENTRY [ 0xfffffa80`08170fe8 -
0xfffffa80`08170fe8 ]
+0x978 Hash : _XENVIF_RECEIVER_HASH
+0x128 Loaned : 0n462675
+0x12c Returned : 0n462627
+0x130 Event : _KEVENT
+0x000 Header : _DISPATCHER_HEADER
+0x148 CalculateChecksums : 1
+0x14c AllowGsoPackets : 1
+0x150 DisableIpVersion4Gso : 0
+0x154 DisableIpVersion6Gso : 0
+0x158 IpAlignOffset : 0
+0x15c AlwaysPullup : 0
+0x160 StoreInterface : _XENBUS_STORE_INTERFACE_V2
+0x000 Interface : _INTERFACE
[snip]
+0x1e8 DebugInterface : _XENBUS_DEBUG_INTERFACE_V1
+0x000 Interface : _INTERFACE
[snip]
+0x238 DebugCallback : 0xfffffa80`07df9120 _XENBUS_DEBUG_CALLBACK
0: kd> .frame 5
05 fffff880`0235a980 fffff880`05d99d5d xennet!AdapterDisable+0x96
[c:\users\admin\documents\xennet\src\xennet\adapter.c @ 1979]
0: kd> dt -r2 Adapter
Local var @ 0xfffff8800235a9c0 Type _XENNET_ADAPTER*
0xfffffa80`081a2c40
+0x000 Location : 0xfffffa80`075590d0 -> 0x30
+0x008 VifInterface : _XENVIF_VIF_INTERFACE_V8
+0x000 Interface : _INTERFACE
[snip]
+0x0f8 StoreInterface : _XENBUS_STORE_INTERFACE_V2
+0x000 Interface : _INTERFACE
[snip]
+0x180 SuspendInterface : _XENBUS_SUSPEND_INTERFACE_V1
+0x000 Interface : _INTERFACE
[snip]
+0x1d0 SuspendCallbackLate : 0xfffffa80`075bbee0
_XENBUS_SUSPEND_CALLBACK
+0x1d8 MaximumFrameSize : 0x5ee
+0x1dc CurrentLookahead : 0
+0x1e0 NdisAdapterHandle : 0xfffffa80`081751a0 Void
+0x1e8 NdisDmaHandle : 0xfffffa80`07619110 Void
+0x1f0 Capabilities : _NDIS_PNP_CAPABILITIES
+0x000 Flags : 0
+0x004 WakeUpCapabilities : _NDIS_PM_WAKE_UP_CAPABILITIES
+0x000 MinMagicPacketWakeUp : 0 ( NdisDeviceStateUnspecified )
+0x004 MinPatternWakeUp : 0 ( NdisDeviceStateUnspecified )
+0x008 MinLinkChangeWakeUp : 0 ( NdisDeviceStateUnspecified )
+0x200 Offload : _NDIS_OFFLOAD
+0x000 Header : _NDIS_OBJECT_HEADER
+0x000 Type : 0xa7 ''
+0x001 Revision : 0x2 ''
+0x002 Size : 0x90
+0x004 Checksum : _NDIS_TCP_IP_CHECKSUM_OFFLOAD
+0x000 IPv4Transmit : <unnamed-tag>
+0x008 IPv4Receive : <unnamed-tag>
+0x010 IPv6Transmit : <unnamed-tag>
+0x018 IPv6Receive : <unnamed-tag>
+0x024 LsoV1 : _NDIS_TCP_LARGE_SEND_OFFLOAD_V1
+0x000 IPv4 : <unnamed-tag>
+0x034 IPsecV1 : _NDIS_IPSEC_OFFLOAD_V1
+0x000 Supported : <unnamed-tag>
+0x014 IPv4AH : <unnamed-tag>
+0x018 IPv4ESP : <unnamed-tag>
+0x050 LsoV2 : _NDIS_TCP_LARGE_SEND_OFFLOAD_V2
+0x000 IPv4 : <unnamed-tag>
+0x00c IPv6 : <unnamed-tag>
+0x06c Flags : 0
+0x070 IPsecV2 : _NDIS_IPSEC_OFFLOAD_V2
+0x000 Encapsulation : 0
+0x004 IPv6Supported : 0 ''
+0x005 IPv4Options : 0 ''
+0x006 IPv6NonIPsecExtensionHeaders : 0 ''
+0x007 Ah : 0 ''
+0x008 Esp : 0 ''
+0x009 AhEspCombined : 0 ''
+0x00a Transport : 0 ''
+0x00b Tunnel : 0 ''
+0x00c TransportTunnelCombined : 0 ''
+0x00d LsoSupported : 0 ''
+0x00e ExtendedSequenceNumbers : 0 ''
+0x010 UdpEsp : 0
+0x014 AuthenticationAlgorithms : 0
+0x018 EncryptionAlgorithms : 0
+0x01c SaOffloadCapacity : 0
+0x290 Properties : _PROPERTIES
+0x000 ipv4_csum : 0n3
+0x004 tcpv4_csum : 0n3
+0x008 udpv4_csum : 0n3
+0x00c tcpv6_csum : 0n3
+0x010 udpv6_csum : 0n3
+0x014 need_csum_value : 0n1
+0x018 lsov4 : 0n1
+0x01c lsov6 : 0n1
+0x020 lrov4 : 0n1
+0x024 lrov6 : 0n1
+0x028 rss : 0n1
+0x2bc Rss : _XENNET_RSS
+0x000 Supported : 0x1 ''
+0x001 HashEnabled : 0 ''
+0x002 ScaleEnabled : 0x1 ''
+0x004 Types : 0x1e
+0x008 Key : [40] "???"
+0x030 KeySize : 0x28
+0x034 Table : [128] ""
+0x0b4 TableSize : 0x40
+0x378 LinkState : _NDIS_LINK_STATE
+0x000 Header : _NDIS_OBJECT_HEADER
+0x000 Type : 0x80 ''
+0x001 Revision : 0x1 ''
+0x002 Size : 0x28
+0x004 MediaConnectState : 1 ( MediaConnectStateConnected )
+0x008 MediaDuplexState : 2 ( MediaDuplexStateFull )
+0x010 XmitLinkSpeed : 0x3b9aca00
+0x018 RcvLinkSpeed : 0x3b9aca00
+0x020 PauseFunctions : 0 ( NdisPauseFunctionsUnsupported )
+0x024 AutoNegotiationFlags : 0
+0x3a0 Receiver : 0xfffffa80`08195000 _XENNET_RECEIVER
+0x000 Adapter : 0xfffffa80`081a2c40 _XENNET_ADAPTER
+0x000 Location : 0xfffffa80`075590d0 -> 0x30
+0x008 VifInterface : _XENVIF_VIF_INTERFACE_V8
+0x0f8 StoreInterface : _XENBUS_STORE_INTERFACE_V2
+0x180 SuspendInterface : _XENBUS_SUSPEND_INTERFACE_V1
+0x1d0 SuspendCallbackLate : 0xfffffa80`075bbee0
_XENBUS_SUSPEND_CALLBACK
+0x1d8 MaximumFrameSize : 0x5ee
+0x1dc CurrentLookahead : 0
+0x1e0 NdisAdapterHandle : 0xfffffa80`081751a0 Void
+0x1e8 NdisDmaHandle : 0xfffffa80`07619110 Void
+0x1f0 Capabilities : _NDIS_PNP_CAPABILITIES
+0x200 Offload : _NDIS_OFFLOAD
+0x290 Properties : _PROPERTIES
+0x2bc Rss : _XENNET_RSS
+0x378 LinkState : _NDIS_LINK_STATE
+0x3a0 Receiver : 0xfffffa80`08195000 _XENNET_RECEIVER
+0x3a8 Transmitter : 0xfffffa80`075ac740 _XENNET_TRANSMITTER
+0x3b0 Enabled : 0 ''
+0x008 NetBufferListPool : 0xfffffa80`08196600 Void
+0x010 PutList : 0xfffffa80`06b227f0 _NET_BUFFER_LIST
+0x000 Next : 0xfffffa80`06a893d0 _NET_BUFFER_LIST
+0x008 FirstNetBuffer : 0xfffffa80`06b22920 _NET_BUFFER
+0x000 Link : _SLIST_HEADER
+0x000 NetBufferListHeader : _NET_BUFFER_LIST_HEADER
+0x010 Context : (null)
+0x018 ParentNetBufferList : (null)
+0x020 NdisPoolHandle : 0xfffffa80`08196600 Void
+0x030 NdisReserved : [2] (null)
+0x040 ProtocolReserved : [4] (null)
+0x060 MiniportReserved : [2] (null)
+0x070 Scratch : (null)
+0x078 SourceHandle : 0xfffffa80`081751a0 Void
+0x080 NblFlags : 0
+0x084 ChildRefCount : 0n0
+0x088 Flags : 0x60000102
+0x08c Status : 0n0
+0x08c NdisReserved2 : 0
+0x090 NetBufferListInfo : [13] (null)
+0x018 GetList : [128] 0xfffffa80`06aa3030 _NET_BUFFER_LIST
+0x000 Next : 0xfffffa80`06afe5c0 _NET_BUFFER_LIST
+0x008 FirstNetBuffer : 0xfffffa80`06aa3160 _NET_BUFFER
+0x000 Link : _SLIST_HEADER
+0x000 NetBufferListHeader : _NET_BUFFER_LIST_HEADER
+0x010 Context : (null)
+0x018 ParentNetBufferList : (null)
+0x020 NdisPoolHandle : 0xfffffa80`08196600 Void
+0x030 NdisReserved : [2] (null)
+0x040 ProtocolReserved : [4] (null)
+0x060 MiniportReserved : [2] (null)
+0x070 Scratch : (null)
+0x078 SourceHandle : 0xfffffa80`081751a0 Void
+0x080 NblFlags : 0
+0x084 ChildRefCount : 0n0
+0x088 Flags : 0xa0000102
+0x08c Status : 0n0
+0x08c NdisReserved2 : 0
+0x090 NetBufferListInfo : [13] 0x00000000`00000028 Void
+0x418 Queue : [128] _XENNET_RECEIVER_QUEUE
+0x000 Lock : 0
+0x008 Head : (null)
+0x010 Tail : (null)
+0x018 Count : 0
+0x1418 Indicated : 0n462675
+0x141c Returned : 0n462627
+0x1420 OffloadOptions : _XENVIF_VIF_OFFLOAD_OPTIONS_V1
+0x000 OffloadTagManipulation : 0y1
+0x000 OffloadIpVersion4LargePacket : 0y1
+0x000 OffloadIpVersion4HeaderChecksum : 0y1
+0x000 OffloadIpVersion4TcpChecksum : 0y1
+0x000 OffloadIpVersion4UdpChecksum : 0y1
+0x000 OffloadIpVersion6LargePacket : 0y1
+0x000 OffloadIpVersion6TcpChecksum : 0y1
+0x000 OffloadIpVersion6UdpChecksum : 0y1
+0x000 NeedChecksumValue : 0y1
+0x000 NeedLargePacketSplit : 0y1
+0x000 Reserved : 0y000000 (0)
+0x000 Value : 0x3ff
+0x3a8 Transmitter : 0xfffffa80`075ac740 _XENNET_TRANSMITTER
+0x000 Adapter : 0xfffffa80`081a2c40 _XENNET_ADAPTER
+0x000 Location : 0xfffffa80`075590d0 -> 0x30
+0x008 VifInterface : _XENVIF_VIF_INTERFACE_V8
+0x0f8 StoreInterface : _XENBUS_STORE_INTERFACE_V2
+0x180 SuspendInterface : _XENBUS_SUSPEND_INTERFACE_V1
+0x1d0 SuspendCallbackLate : 0xfffffa80`075bbee0
_XENBUS_SUSPEND_CALLBACK
+0x1d8 MaximumFrameSize : 0x5ee
+0x1dc CurrentLookahead : 0
+0x1e0 NdisAdapterHandle : 0xfffffa80`081751a0 Void
+0x1e8 NdisDmaHandle : 0xfffffa80`07619110 Void
+0x1f0 Capabilities : _NDIS_PNP_CAPABILITIES
+0x200 Offload : _NDIS_OFFLOAD
+0x290 Properties : _PROPERTIES
+0x2bc Rss : _XENNET_RSS
+0x378 LinkState : _NDIS_LINK_STATE
+0x3a0 Receiver : 0xfffffa80`08195000 _XENNET_RECEIVER
+0x3a8 Transmitter : 0xfffffa80`075ac740 _XENNET_TRANSMITTER
+0x3b0 Enabled : 0 ''
+0x008 OffloadOptions : _XENVIF_VIF_OFFLOAD_OPTIONS_V1
+0x000 OffloadTagManipulation : 0y1
+0x000 OffloadIpVersion4LargePacket : 0y1
+0x000 OffloadIpVersion4HeaderChecksum : 0y1
+0x000 OffloadIpVersion4TcpChecksum : 0y1
+0x000 OffloadIpVersion4UdpChecksum : 0y1
+0x000 OffloadIpVersion6LargePacket : 0y1
+0x000 OffloadIpVersion6TcpChecksum : 0y1
+0x000 OffloadIpVersion6UdpChecksum : 0y1
+0x000 NeedChecksumValue : 0y0
+0x000 NeedLargePacketSplit : 0y0
+0x000 Reserved : 0y000000 (0)
+0x000 Value : 0xff
+0x010 Lock : 0
+0x3b0 Enabled : 0 ''
Paul
This is analysis from memory my crash dump
---------------------------------------------------------
kd> !stacks 2 xennet!
Proc.Thread .Thread Ticks ThreadState Blocker
[fffff80002e0b180 Idle]
[fffffa80066749c0 System]
4.001008 fffffa80069aeb50 fff7e482 Blocked nt!KiSwapContext+0x7a
nt!KiCommitThreadWait+0x1d2
nt!KeWaitForSingleObject+0x19f
xenvif!ReceiverWaitForPackets+0x278
xenvif!VifDisable+0x101
xennet!AdapterDisable+0x96
xennet!MiniportShutdownEx+0x3d
ndis!ndisMShutdownMiniport+0xc9
ndis!ndisSetPower+0x921
ndis!ndisPowerDispatch+0x1ef
nt!PopIrpWorker+0x3c5
nt!PspSystemThreadStartup+0x5a
nt!KxStartSystemThread+0x16
kd> .thread fffffa80069aeb50
kd> k n
*** Stack trace for last set context - .thread/.cxr resets it
# Child-SP RetAddr Call Site
00 fffff880`0235a610 fffff800`02c73e42 nt!KiSwapContext+0x7a
01 fffff880`0235a750 fffff800`02c851df nt!KiCommitThreadWait+0x1d2
02 fffff880`0235a7e0 fffff880`0547e968 nt!KeWaitForSingleObject+0x19f
03 fffff880`0235a880 fffff880`0549e961
xenvif!ReceiverWaitForPackets+0x278
[c:\users\admin\documents\xenvif\src\xenvif\receiver.c @ 3740]
04 fffff880`0235a930 fffff880`05d91386 xenvif!VifDisable+0x101
[c:\users\admin\documents\xenvif\src\xenvif\vif.c @ 270]
05 fffff880`0235a980 fffff880`05d99d5d xennet!AdapterDisable+0x96
[c:\users\admin\documents\xennet\src\xennet\adapter.c @ 1979]
06 fffff880`0235a9c0 fffff880`0170b649 xennet!MiniportShutdownEx+0x3d
[c:\users\admin\documents\xennet\src\xennet\miniport.c @ 284]
07 fffff880`0235aa00 fffff880`01715c81
ndis!ndisMShutdownMiniport+0xc9
08 fffff880`0235aa40 fffff880`016adfdf ndis!ndisSetPower+0x921
09 fffff880`0235ab00 fffff800`02d9d2a5 ndis!ndisPowerDispatch+0x1ef
0a fffff880`0235ab50 fffff800`02f19236 nt!PopIrpWorker+0x3c5
0b fffff880`0235ac00 fffff800`02c6f706 nt!PspSystemThreadStartup+0x5a
0c fffff880`0235ac40 00000000`00000000 nt!KxStartSystemThread+0x16
kd> .frame 3
03 fffff880`0235a880 fffff880`0549e961
xenvif!ReceiverWaitForPackets+0x278
[c:\users\admin\documents\xenvif\src\xenvif\receiver.c @ 3740]
0: kd> dv
Receiver = 0xfffffa80`08149670
Returned = 0n462627
Timeout = union _LARGE_INTEGER 0xffffffff`fa0a1f00
Loaned = 0n462675
Frontend = 0xfffffa80`0815bad0
---------------------------------------------------------------------
eg. Loaned > Returned
Martin
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