Package: linux-2.6
Version: 2.6.32-30
Severity: normal
Tags: squeeze upstream patch
Hi,
As reported in:
https://bugs.launchpad.net/ubuntu/+source/eucalyptus/+bug/602060
and (in a roundabout way) in:
http://www.mail-archive.com/qemu-devel@nongnu.org/msg26223.html
the network inside a 2.6.32 kvm/qemu guest stops working if you hotplug a
virtio disk. There is a simple patch that fixes this problem, which was:
- tested by Alexander Graf in the qemu-devel posting mentioned above,
- accepted in the mainline kernel some time ago,
- just tested by myself too.
The patch can be found at http://lkml.org/lkml/2009/11/29/73 as well as
below. Please include this patch, it makes life for KVM users a lot easier!
As all virtio devices perform DMA, we
must enable bus mastering for them to be
spec compliant.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
drivers/virtio/virtio_pci.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 28d9cf7..717bae1 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -648,6 +648,7 @@ static int __devinit virtio_pci_probe(struct pci_dev
*pci_dev,
goto out_req_regions;
pci_set_drvdata(pci_dev, vp_dev);
+ pci_set_master(pci_dev);
/* we use the subsystem vendor/device id as the virtio vendor/device
* id. this allows us to use the same PCI vendor/device id for all
Thanks,
--
Wessel Dankers
-- System Information:
Debian Release: 6.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/3 CPU cores)
Locale: LANG=nl_NL.UTF-8, LC_CTYPE=nl_NL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages linux-image-2.6.32-5-amd64 depends on:
ii debconf [debconf-2.0] 1.5.36 Debian configuration management sy
ii initramfs-tools [linux-initra 0.98.7 tools for generating an initramfs
ii linux-base 2.6.32-30 Linux image base package
ii module-init-tools 3.12-1 tools for managing Linux kernel mo
Versions of packages linux-image-2.6.32-5-amd64 recommends:
pn firmware-linux-free <none> (no description available)
Versions of packages linux-image-2.6.32-5-amd64 suggests:
pn grub | lilo <none> (no description available)
ii linux-doc-2.6.32 2.6.32-30 Linux kernel specific documentatio
Versions of packages linux-image-2.6.32-5-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)
-- debconf information excluded
-- Package-specific info:
** Version:
Linux version 2.6.32-5-amd64 (Debian 2.6.32-30) (b...@decadent.org.uk) (gcc
version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Wed Jan 12 03:40:32 UTC 2011
** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-amd64 root=/dev/mapper/sys-root ro
console=ttyS0,115200 elevator=noop rootflags=logbufs=8,logbsize=256k,noatime
quiet
** Not tainted
** Kernel log:
[ 0.387896] alloc irq_desc for 24 on node -1
[ 0.387899] alloc kstat_irqs on node -1
[ 0.387922] virtio-pci 0000:00:04.0: irq 24 for MSI/MSI-X
[ 0.387924] alloc irq_desc for 25 on node -1
[ 0.387926] alloc kstat_irqs on node -1
[ 0.387940] virtio-pci 0000:00:04.0: irq 25 for MSI/MSI-X
[ 0.388631] vda:
[ 0.390785] ata_piix 0000:00:01.1: version 2.13
[ 0.390852] ata_piix 0000:00:01.1: setting latency timer to 64
[ 0.391039] scsi0 : ata_piix
[ 0.391212] scsi1 : ata_piix
[ 0.391269] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
[ 0.391271] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
[ 0.401910] FDC 0 is a S82078B
[ 0.410013] vda1 vda2
[ 0.410456] alloc irq_desc for 26 on node -1
[ 0.410458] alloc kstat_irqs on node -1
[ 0.410479] virtio-pci 0000:00:03.0: irq 26 for MSI/MSI-X
[ 0.410481] alloc irq_desc for 27 on node -1
[ 0.410482] alloc kstat_irqs on node -1
[ 0.410496] virtio-pci 0000:00:03.0: irq 27 for MSI/MSI-X
[ 0.410498] alloc irq_desc for 28 on node -1
[ 0.410499] alloc kstat_irqs on node -1
[ 0.410514] virtio-pci 0000:00:03.0: irq 28 for MSI/MSI-X
[ 0.413362] alloc irq_desc for 29 on node -1
[ 0.413369] alloc kstat_irqs on node -1
[ 0.413431] virtio-pci 0000:00:05.0: irq 29 for MSI/MSI-X
[ 0.413438] alloc irq_desc for 30 on node -1
[ 0.413442] alloc kstat_irqs on node -1
[ 0.413490] virtio-pci 0000:00:05.0: irq 30 for MSI/MSI-X
[ 0.414669] vdb: unknown partition table
[ 0.545705] ata2.01: NODEV after polling detection
[ 0.546184] ata2.00: ATAPI: QEMU DVD-ROM, 0.12.5, max UDMA/100
[ 0.547030] ata2.00: configured for MWDMA2
[ 0.548261] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 0.12
PQ: 0 ANSI: 5
[ 0.568792] sr0: scsi3-mmc drive: 4x/4x xa/form2 tray
[ 0.568800] Uniform CD-ROM driver Revision: 3.20
[ 0.569416] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 0.578872] sr 1:0:0:0: Attached scsi generic sg0 type 5
[ 1.146940] device-mapper: uevent: version 1.0.3
[ 1.147400] device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised:
dm-de...@redhat.com
[ 1.293013] SGI XFS with ACLs, security attributes, realtime, large
block/inode numbers, no debug enabled
[ 1.296115] SGI XFS Quota Management subsystem
[ 1.348953] XFS mounting filesystem dm-0
[ 1.541703] Ending clean XFS mount for filesystem: dm-0
[ 2.709358] udev[354]: starting version 164
[ 2.893556] processor LNXCPU:00: registered as cooling_device0
[ 2.894008] processor LNXCPU:01: registered as cooling_device1
[ 2.894100] processor LNXCPU:02: registered as cooling_device2
[ 2.894449] processor LNXCPU:03: registered as cooling_device3
[ 2.895461] input: Power Button as
/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
[ 2.895476] ACPI: Power Button [PWRF]
[ 2.897293] input: PC Speaker as /devices/platform/pcspkr/input/input3
[ 2.953568] parport_pc 00:05: reported by Plug and Play ACPI
[ 2.954213] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
[ 2.955790] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100,
revision 0
[ 3.021181] Error: Driver 'pcspkr' is already registered, aborting...
[ 3.393990] input: ImExPS/2 Generic Explorer Mouse as
/devices/platform/i8042/serio1/input/input4
[ 4.217351] loop: module loaded
[ 4.487709] XFS mounting filesystem dm-1
[ 4.727805] Ending clean XFS mount for filesystem: dm-1
[ 4.787790] XFS mounting filesystem dm-3
[ 5.011448] Ending clean XFS mount for filesystem: dm-3
[ 5.039698] XFS mounting filesystem dm-2
[ 5.240278] Ending clean XFS mount for filesystem: dm-2
[ 5.291756] XFS mounting filesystem dm-4
[ 5.543067] Ending clean XFS mount for filesystem: dm-4
[ 5.592136] XFS mounting filesystem dm-5
[ 5.920403] Ending clean XFS mount for filesystem: dm-5
[ 5.962066] XFS mounting filesystem vdb
[ 6.697615] Ending clean XFS mount for filesystem: vdb
[ 8.392712] RPC: Registered udp transport module.
[ 8.392714] RPC: Registered tcp transport module.
[ 8.392716] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 8.535415] Slow work thread pool: Starting up
[ 8.536098] Slow work thread pool: Ready
[ 8.536432] FS-Cache: Loaded
[ 8.589758] FS-Cache: Netfs 'nfs' registered for caching
[ 8.612823] Installing knfsd (copyright (C) 1996 o...@monad.swb.de).
[ 9.175547] svc: failed to register lockdv1 RPC service (errno 97).
[ 9.177496] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery
directory
[ 9.195060] NFSD: starting 90-second grace period
[ 6326.737925] XFS mounting filesystem dm-6
[ 6327.020141] Ending clean XFS mount for filesystem: dm-6
[ 7818.148444] hrtimer: interrupt took 51992795 ns
[11809.208099] CPU0 attaching NULL sched-domain.
[11809.208103] CPU1 attaching NULL sched-domain.
[11809.208105] CPU2 attaching NULL sched-domain.
[11809.208107] CPU3 attaching NULL sched-domain.
[11809.236549] CPU0 attaching sched-domain:
[11809.236553] domain 0: span 0-2 level CPU
[11809.236555] groups: 0 1 2
[11809.236560] CPU1 attaching sched-domain:
[11809.236562] domain 0: span 0-2 level CPU
[11809.236564] groups: 1 2 0
[11809.236567] CPU2 attaching sched-domain:
[11809.236569] domain 0: span 0-2 level CPU
[11809.236570] groups: 2 0 1
[11809.237512] Broke affinity for irq 27
[11809.240165] CPU 3 is now offline
** Model information
sys_vendor: Bochs
product_name: Bochs
product_version:
chassis_vendor: Bochs
chassis_version:
bios_vendor: Bochs
bios_version: Bochs
** Loaded modules:
Module Size Used by
tcp_diag 880 0
inet_diag 6914 2 tcp_diag
nfsd 254782 13
nfs 241066 0
lockd 57603 2 nfsd,nfs
fscache 29834 1 nfs
nfs_acl 2031 2 nfsd,nfs
auth_rpcgss 33476 2 nfsd,nfs
sunrpc 161541 13 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
loop 11799 0
snd_pcm 60503 0
snd_timer 15582 1 snd_pcm
snd 46446 2 snd_pcm,snd_timer
soundcore 4598 1 snd
i2c_piix4 8328 0
parport_pc 18855 0
psmouse 49777 0
snd_page_alloc 6249 1 snd_pcm
i2c_core 15712 1 i2c_piix4
parport 27954 1 parport_pc
evdev 7352 2
serio_raw 3752 0
pcspkr 1699 0
button 4650 0
processor 29935 0
xfs 436941 8
exportfs 3170 2 nfsd,xfs
dm_mod 53754 21
sg 18744 0
sr_mod 12602 0
cdrom 29415 1 sr_mod
ata_generic 3047 0
ata_piix 21124 0
virtio_net 10529 0
virtio_blk 4225 3
floppy 49087 0
thermal 11674 0
libata 133632 2 ata_generic,ata_piix
virtio_pci 5535 0
virtio_ring 3258 1 virtio_pci
virtio 3309 3 virtio_net,virtio_blk,virtio_pci
thermal_sys 11942 2 processor,thermal
scsi_mod 122149 3 sg,sr_mod,libata
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma]
[8086:1237] (rev 02)
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
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-
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton
II] [8086:7000]
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
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
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE
[Natoma/Triton II] [8086:7010] (prog-if 80 [Master])
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
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 c000 [size=16]
Kernel driver in use: ata_piix
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113]
(rev 03)
Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
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
Kernel driver in use: piix4_smbus
00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8]
(prog-if 00 [VGA controller])
Subsystem: Red Hat, Inc Device [1af4:1100]
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 f0000000 (32-bit, prefetchable) [size=32M]
Region 1: Memory at f2000000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at f2010000 [disabled] [size=64K]
00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device
[1af4:1000]
Subsystem: Red Hat, Inc Device [1af4:0001]
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-
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at c020 [size=32]
Region 1: Memory at f2020000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at f2028000 [disabled] [size=32K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device
[1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
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-
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at c040 [size=64]
Region 1: Memory at f2030000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
00:05.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device
[1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
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-
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at c080 [size=64]
Region 1: Memory at f2031000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
** USB devices:
not available
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