On Wed, Jan 15, 2014 at 04:59:45PM +0800, 李义 wrote: > >Which OS is this, exactly? > >Does this reproduce with a newer guest? > > the guest kernel (2.6.32.43) is come from the mainline of kernel.org. > this issue just happened once at my guest kernel (2.6.32.43). Hmm. Could be one of the gazillion bugfixes that happened in one of the drivers since. > >What uses irq 11? Could you check with lspci before you try to shutdown? > > # lspci > 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02) > 00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] > 00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] > 00:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB > [Natoma/Triton II] (rev 01) > 00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03) > 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 > 00:03.0 Ethernet controller: Red Hat, Inc Virtio network device > 00:04.0 Ethernet controller: Red Hat, Inc Virtio network device > 00:05.0 SCSI storage controller: Red Hat, Inc Virtio block device > 00:06.0 SCSI storage controller: Red Hat, Inc Virtio block device > 00:07.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon > > # lspci -vv > 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02) > Subsystem: Red Hat, Inc Qemu virtual machine > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > > 00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] > Subsystem: Red Hat, Inc Qemu virtual machine > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > > 00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE > [Natoma/Triton II] (prog-if 80 [Master]) > Subsystem: Red Hat, Inc Qemu virtual machine > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] > Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1] > Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] > Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1] > Region 4: I/O ports at c100 [size=16] > Kernel driver in use: ata_piix > > 00:01.2 USB controller: Intel Corporation 82371SB PIIX3 USB > [Natoma/Triton II] (rev 01) (prog-if 00 [UHCI]) > Subsystem: Red Hat, Inc Qemu virtual machine > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin D routed to IRQ 11 > Region 4: I/O ports at c080 [size=32] > > 00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03) > Subsystem: Red Hat, Inc Qemu virtual machine > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Interrupt: pin A routed to IRQ 9 > > 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 (prog-if 00 > [VGA controller]) > Subsystem: Red Hat, Inc Device 1100 > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Region 0: Memory at fc000000 (32-bit, prefetchable) [size=32M] > Region 1: Memory at febf0000 (32-bit, non-prefetchable) [size=4K] > Expansion ROM at febe0000 [disabled] [size=64K] > > 00:03.0 Ethernet controller: Red Hat, Inc Virtio network device > Subsystem: Red Hat, Inc Device 0001 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 11 > Region 0: I/O ports at c0a0 [size=32] > Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] > Expansion ROM at feba0000 [disabled] [size=128K] > Capabilities: [40] MSI-X: Enable+ Count=3 Masked- > Vector table: BAR=1 offset=00000000 > PBA: BAR=1 offset=00000800 > Kernel driver in use: virtio-pci > > 00:04.0 Ethernet controller: Red Hat, Inc Virtio network device > Subsystem: Red Hat, Inc Device 0001 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 10 > Region 0: I/O ports at c0c0 [size=32] > Region 1: Memory at febf2000 (32-bit, non-prefetchable) [size=4K] > Expansion ROM at febc0000 [disabled] [size=128K] > Capabilities: [40] MSI-X: Enable+ Count=3 Masked- > Vector table: BAR=1 offset=00000000 > PBA: BAR=1 offset=00000800 > Kernel driver in use: virtio-pci > > 00:05.0 SCSI storage controller: Red Hat, Inc Virtio block device > Subsystem: Red Hat, Inc Device 0002 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 10 > Region 0: I/O ports at c000 [size=64] > Region 1: Memory at febf3000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [40] MSI-X: Enable+ Count=2 Masked- > Vector table: BAR=1 offset=00000000 > PBA: BAR=1 offset=00000800 > Kernel driver in use: virtio-pci > > 00:06.0 SCSI storage controller: Red Hat, Inc Virtio block device > Subsystem: Red Hat, Inc Device 0002 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 11 > Region 0: I/O ports at c040 [size=64] > Region 1: Memory at febf4000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [40] MSI-X: Enable+ Count=2 Masked- > Vector table: BAR=1 offset=00000000 > PBA: BAR=1 offset=00000800 > Kernel driver in use: virtio-pci > > 00:07.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon > Subsystem: Red Hat, Inc Device 0005 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin A routed to IRQ 11 > Region 0: I/O ports at c0e0 [size=32] > Kernel driver in use: virtio-pc So it's probably either the balloon or the usb controller that' creating the problem. Try dropping the balloon from command line, maybe it will go away. -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
