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[Xen-users] Shutting down domU causes "hda: interrupt lost" on dom0 and

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Subject: [Xen-users] Shutting down domU causes "hda: interrupt lost" on dom0 and freezes the box.
From: "Jamie J. Begin" <begin@xxxxxxxxxxxxxxx>
Date: Tue, 29 Apr 2008 14:12:11 -0400
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I mentioned this yesterday, but it was buried in another thread:


When I try to reboot dom0, it switches to runlevel 6 and the xen init.d script attempts to stop a domU containing an Asterisk installation.  It's at that point I get an "hda: interrupt lost" on the physical console.  SSH become inaccessible and eventually the system pukes up a bunch of ext3 and RAID controller related errors and freezes.  I have to physically power cycle the box to get it back up.


I suspect that a PCIe telephony card that I’m passing to the domU using pciback is the source of the problem.  The card is a Digium AEX800 (which is actually a PCIe version of Digium's PCI-based TDM800P). Based on some preliminary testing, the card seems to function just fine in the domU.  lspci output is:


0b:08.0 Ethernet controller: Digium, Inc. Unknown device 8002 (rev 11)

        Subsystem: Digium, Inc. Unknown device 8002

        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-

        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-

        Interrupt: pin A routed to IRQ 16

        Region 0: I/O ports at dc00 [disabled] [size=256]

        Region 1: Memory at fc7dfc00 (32-bit, non-prefetchable) [disabled] [size=1K]

        Expansion ROM at fc7e0000 [disabled] [size=128K]

        Capabilities: [c0] Power Management version 2

                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)

                Status: D0 PME-Enable- DSel=0 DScale=0 PME-


Any suggestions?  This is a new Dell PowerEdge 1950 with a PERC SATA RAID 1 array, running CentOS 5.1 (2.6.18-53.1.14.el5xen) in both the dom0 and domU. 


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