Bug#687456: btrfs: Oops when adding a device on a degraded raid1 filesystem
Package: src:linux
Version: 3.2.23-1
Severity: grave
On a very fresh wheezy install I was able to crash the kernel by
playing with btrfs. I am reporting it using a kvm image but I first
had the bug on real boxes.
To reproduce the bug, I am creating a "raid1" btrfs filesystem,
creating some file and stopping the system:
# mkfs.btrfs -m raid1 /dev/vdb /dev/vdc
# mount /dev/vdb /mnt
# dd if=/dev/zero of=/mnt/zeros count=1M
# umount /mnt
# shutdown -h now
While it is stopped, I wipe one of the drive to make it invalid
(/dev/vdc). I can now restart the system, mount the btrfs filesystem
in "degraded" mode and when I want to add a new device to replace the
faulty one, it crashes:
# mount -o degraded /dev/vdb /mnt
# btrfs device add /dev/vdc /mnt
Here is the output of the kernel crash:
[ 7.209204] btrfs: error reading free space cache
[ 7.209403] BUG: unable to handle kernel NULL pointer dereference at 0000000000000001
[ 7.209962] IP: [<ffffffffa013cd22>] io_ctl_drop_pages+0x1e/0x48 [btrfs]
[ 7.210210] PGD 37546067 PUD 3c174067 PMD 0
[ 7.210566] Oops: 0002 [#1] SMP
[ 7.210821] CPU 0
[ 7.210919] Modules linked in: netconsole configfs nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop joydev usbhid hid virtio_balloon processor psmouse thermal_sys evdev serio_raw button snd_pcm snd_page_alloc snd_timer snd soundcore i2c_piix4 i2c_core pcspkr ext4 crc16 jbd2 mbcache btrfs crc32c libcrc32c zlib_deflate sg sr_mod cdrom ata_generic virtio_net virtio_blk floppy ata_piix uhci_hcd ehci_hcd virtio_pci virtio_ring virtio libata scsi_mod usbcore usb_common [last unloaded: scsi_wait_scan]
[ 7.212225]
[ 7.212225] Pid: 2244, comm: btrfs Not tainted 3.2.0-3-amd64 #1 Bochs Bochs
[ 7.212225] RIP: 0010:[<ffffffffa013cd22>] [<ffffffffa013cd22>] io_ctl_drop_pages+0x1e/0x48 [btrfs]
[ 7.212225] RSP: 0018:ffff8800376f7528 EFLAGS: 00010203
[ 7.212225] RAX: 0000000000000001 RBX: ffff8800376f75c0 RCX: 0000000000000034
[ 7.212225] RDX: 0000000000000000 RSI: ffffea0000dfbc68 RDI: ffffea0000dfbc68
[ 7.212225] RBP: 000000000000000d R08: ffff88003d332520 R09: 0000000000000020
[ 7.212225] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000000d
[ 7.212225] R13: 000000000000000c R14: 000000000002005a R15: 0000000000000001
[ 7.212225] FS: 00007fd9e9b5f760(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
[ 7.212225] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 7.212225] CR2: 0000000000000001 CR3: 000000003b9f0000 CR4: 00000000000006f0
[ 7.212225] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.212225] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 7.212225] Process btrfs (pid: 2244, threadinfo ffff8800376f6000, task ffff88003bf716d0)
[ 7.212225] Stack:
[ 7.212225] ffff8800376f75c0 000000000000000c ffff88003de7e5b8 ffffffffa013d581
[ 7.212225] 0000000000000282 ffffea0000dfbc68 0000000000000014 ffff88003cb3cdc0
[ 7.212225] ffff88003de7e588 0000000000000008 0000000000000014 ffff88003d332520
[ 7.212225] Call Trace:
[ 7.212225] [<ffffffffa013d581>] ? io_ctl_prepare_pages.isra.24+0xc1/0x10c [btrfs]
[ 7.212225] [<ffffffffa013ea60>] ? __load_free_space_cache+0x185/0x463 [btrfs]
[ 7.212225] [<ffffffffa013ee08>] ? load_free_space_cache+0xca/0x15b [btrfs]
[ 7.212225] [<ffffffffa0103033>] ? cache_block_group+0x1d9/0x34d [btrfs]
[ 7.212225] [<ffffffff8102bb64>] ? pvclock_clocksource_read+0x42/0xb2
[ 7.212225] [<ffffffff8105f5f3>] ? add_wait_queue+0x3c/0x3c
[ 7.212225] [<ffffffffa0105200>] ? find_free_extent.constprop.71+0x3e0/0x930 [btrfs]
[ 7.212225] [<ffffffffa0107d7c>] ? btrfs_reserve_extent+0xb0/0x18e [btrfs]
[ 7.212225] [<ffffffffa0108284>] ? btrfs_alloc_free_block+0x15d/0x284 [btrfs]
[ 7.212225] [<ffffffffa00fb7bf>] ? __btrfs_cow_block+0x102/0x33a [btrfs]
[ 7.212225] [<ffffffffa00fbaee>] ? btrfs_cow_block+0xf7/0x143 [btrfs]
[ 7.212225] [<ffffffffa00fe546>] ? btrfs_search_slot+0x225/0x64e [btrfs]
[ 7.212225] [<ffffffffa00ff5d9>] ? btrfs_insert_empty_items+0x5c/0xad [btrfs]
[ 7.212225] [<ffffffffa0106cf1>] ? run_clustered_refs+0x386/0x6aa [btrfs]
[ 7.212225] [<ffffffffa00fa2a0>] ? leaf_space_used+0x4a/0x6f [btrfs]
[ 7.212225] [<ffffffffa01070de>] ? btrfs_run_delayed_refs+0xc9/0x176 [btrfs]
[ 7.212225] [<ffffffff8134a1b0>] ? mutex_lock+0xd/0x2d
[ 7.212225] [<ffffffffa0114153>] ? btrfs_commit_transaction+0x8f/0x6f9 [btrfs]
[ 7.212225] [<ffffffff8105f5f3>] ? add_wait_queue+0x3c/0x3c
[ 7.212225] [<ffffffff81036457>] ? should_resched+0x5/0x23
[ 7.212225] [<ffffffffa01324fa>] ? btrfs_init_new_device+0x871/0xa56 [btrfs]
[ 7.212225] [<ffffffffa01377bd>] ? btrfs_ioctl+0x699/0xe1c [btrfs]
[ 7.212225] [<ffffffff810eb5d3>] ? __kmalloc_track_caller+0xfe/0x110
[ 7.212225] [<ffffffff81036457>] ? should_resched+0x5/0x23
[ 7.212225] [<ffffffffa01377df>] ? btrfs_ioctl+0x6bb/0xe1c [btrfs]
[ 7.212225] [<ffffffff8103ad6e>] ? check_preempt_curr+0x52/0x5f
[ 7.212225] [<ffffffff8103adcb>] ? ttwu_do_wakeup+0x50/0xc4
[ 7.212225] [<ffffffff8134dc6d>] ? do_page_fault+0x2fc/0x337
[ 7.212225] [<ffffffff81106911>] ? do_vfs_ioctl+0x459/0x49a
[ 7.212225] [<ffffffff81094ee9>] ? __call_rcu+0x21/0x12c
[ 7.212225] [<ffffffff811093c7>] ? dput+0x27/0xee
[ 7.212225] [<ffffffff810fa38e>] ? fput+0x17a/0x1a1
[ 7.212225] [<ffffffff8110699d>] ? sys_ioctl+0x4b/0x72
[ 7.212225] [<ffffffff8134fc92>] ? system_call_fastpath+0x16/0x1b
[ 7.212225] Code: 44 24 0c 89 04 ab 48 83 c4 18 5b 5d c3 41 54 55 31 ed 53 48 89 fb e8 5c f7 ff ff eb 2e 48 8b 43 18 4c 63 e5 4a 8b 04 e0 48 ff c0 <3e> 80 20 fe 48 8b 43 18 ff c5 4a 8b 3c e0 e8 6a 70 f7 e0 48 8b
[ 7.212225] RIP [<ffffffffa013cd22>] io_ctl_drop_pages+0x1e/0x48 [btrfs]
[ 7.212225] RSP <ffff8800376f7528>
[ 7.212225] CR2: 0000000000000001
[ 7.239653] ---[ end trace 88584ff96ba6ee14 ]---
It should be straightforward to reproduce. I would flag it as "grave"
as it means one cannot recover a situation when 1 drive is lost in a
RAID1 arrangement.
Antoine
-- Package-specific info:
** Version:
Linux version 3.2.0-3-amd64 (Debian 3.2.23-1) (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-8) ) #1 SMP Mon Jul 23 02:45:17 UTC 2012
** Command line:
BOOT_IMAGE=/boot/vmlinuz-3.2.0-3-amd64 root=UUID=4b8d36bd-8d74-4f29-8882-8133b5261eed ro quiet
** Not tainted
** Kernel log:
[ 0.353829] virtio-pci 0000:00:05.0: PCI INT A -> Link[LNKA] -> GSI 10 (level, high) -> IRQ 10
[ 0.353848] virtio-pci 0000:00:05.0: setting latency timer to 64
[ 0.354188] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
[ 0.354191] virtio-pci 0000:00:06.0: PCI INT A -> Link[LNKB] -> GSI 11 (level, high) -> IRQ 11
[ 0.354209] virtio-pci 0000:00:06.0: setting latency timer to 64
[ 0.354551] virtio-pci 0000:00:07.0: PCI INT A -> Link[LNKC] -> GSI 10 (level, high) -> IRQ 10
[ 0.354568] virtio-pci 0000:00:07.0: setting latency timer to 64
[ 0.354879] virtio-pci 0000:00:08.0: PCI INT A -> Link[LNKD] -> GSI 11 (level, high) -> IRQ 11
[ 0.354897] virtio-pci 0000:00:08.0: setting latency timer to 64
[ 0.357619] SCSI subsystem initialized
[ 0.368711] usbcore: registered new interface driver usbfs
[ 0.368728] usbcore: registered new interface driver hub
[ 0.373371] usbcore: registered new device driver usb
[ 0.373678] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.373919] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.373975] uhci_hcd 0000:00:01.2: PCI INT D -> Link[LNKD] -> GSI 11 (level, high) -> IRQ 11
[ 0.374000] uhci_hcd 0000:00:01.2: setting latency timer to 64
[ 0.374006] uhci_hcd 0000:00:01.2: UHCI Host Controller
[ 0.374030] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1
[ 0.374110] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c100
[ 0.374157] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[ 0.374158] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.374160] usb usb1: Product: UHCI Host Controller
[ 0.374161] usb usb1: Manufacturer: Linux 3.2.0-3-amd64 uhci_hcd
[ 0.374162] usb usb1: SerialNumber: 0000:00:01.2
[ 0.374238] hub 1-0:1.0: USB hub found
[ 0.374241] hub 1-0:1.0: 2 ports detected
[ 0.385071] libata version 3.00 loaded.
[ 0.385326] ata_piix 0000:00:01.1: version 2.13
[ 0.385409] ata_piix 0000:00:01.1: setting latency timer to 64
[ 0.391661] scsi0 : ata_piix
[ 0.394111] scsi1 : ata_piix
[ 0.394158] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc160 irq 14
[ 0.394160] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc168 irq 15
[ 0.410978] virtio-pci 0000:00:04.0: irq 40 for MSI/MSI-X
[ 0.410993] virtio-pci 0000:00:04.0: irq 41 for MSI/MSI-X
[ 0.418753] FDC 0 is a S82078B
[ 0.430330] virtio-pci 0000:00:03.0: irq 42 for MSI/MSI-X
[ 0.430369] virtio-pci 0000:00:03.0: irq 43 for MSI/MSI-X
[ 0.430404] virtio-pci 0000:00:03.0: irq 44 for MSI/MSI-X
[ 0.433145] vda: vda1 vda2
[ 0.435100] virtio-pci 0000:00:05.0: irq 45 for MSI/MSI-X
[ 0.435138] virtio-pci 0000:00:05.0: irq 46 for MSI/MSI-X
[ 0.437031] vdb: unknown partition table
[ 0.438587] virtio-pci 0000:00:06.0: irq 47 for MSI/MSI-X
[ 0.438626] virtio-pci 0000:00:06.0: irq 48 for MSI/MSI-X
[ 0.441717] vdc: unknown partition table
[ 0.445380] virtio-pci 0000:00:07.0: irq 49 for MSI/MSI-X
[ 0.445643] virtio-pci 0000:00:07.0: irq 50 for MSI/MSI-X
[ 0.448916] vdd: unknown partition table
[ 0.560753] ata2.01: NODEV after polling detection
[ 0.561363] ata2.00: ATAPI: QEMU DVD-ROM, 1.1.1, max UDMA/100
[ 0.562158] ata2.00: configured for MWDMA2
[ 0.562996] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 1.1. PQ: 0 ANSI: 5
[ 0.571392] sr0: scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[ 0.571395] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 0.571769] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 0.574417] sr 1:0:0:0: Attached scsi generic sg0 type 5
[ 0.592620] Btrfs loaded
[ 0.594837] device fsid fcba3241-c346-4757-b17f-1bba1749015a devid 1 transid 8 /dev/vdb
[ 0.597852] PM: Starting manual resume from disk
[ 0.597854] PM: Hibernation image partition 254:2 present
[ 0.597855] PM: Looking for hibernation image.
[ 0.598038] PM: Image not found (code -22)
[ 0.598041] PM: Hibernation image not present or could not be loaded.
[ 0.604167] EXT4-fs (vda1): INFO: recovery required on readonly filesystem
[ 0.604169] EXT4-fs (vda1): write access will be enabled during recovery
[ 0.606251] EXT4-fs (vda1): recovery complete
[ 0.606629] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (null)
[ 0.684083] usb 1-1: new full-speed USB device number 2 using uhci_hcd
[ 0.826913] udevd[289]: starting version 175
[ 0.905305] input: PC Speaker as /devices/platform/pcspkr/input/input1
[ 0.907488] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100, revision 0
[ 0.926052] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
[ 0.926057] ACPI: Power Button [PWRF]
[ 0.956212] usb 1-1: New USB device found, idVendor=0627, idProduct=0001
[ 0.956215] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5
[ 0.956216] usb 1-1: Product: QEMU USB Tablet
[ 0.956217] usb 1-1: Manufacturer: QEMU 1.1.1
[ 0.956218] usb 1-1: SerialNumber: 42
[ 0.979800] WARNING! power/level is deprecated; use power/control instead
[ 0.996372] Error: Driver 'pcspkr' is already registered, aborting...
[ 1.001296] input: QEMU 1.1.1 QEMU USB Tablet as /devices/pci0000:00/0000:00:01.2/usb1/1-1/1-1:1.0/input/input3
[ 1.001429] generic-usb 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU 1.1.1 QEMU USB Tablet] on usb-0000:00:01.2-1/input0
[ 1.001445] usbcore: registered new interface driver usbhid
[ 1.001446] usbhid: USB HID core driver
[ 1.152688] Adding 143356k swap on /dev/vda2. Priority:-1 extents:1 across:143356k
[ 1.161393] EXT4-fs (vda1): re-mounted. Opts: (null)
[ 1.252083] Refined TSC clocksource calibration: 2594.100 MHz.
[ 1.311997] EXT4-fs (vda1): re-mounted. Opts: errors=remount-ro
[ 1.336805] loop: module loaded
[ 1.384857] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input4
[ 1.811733] RPC: Registered named UNIX socket transport module.
[ 1.811735] RPC: Registered udp transport module.
[ 1.811737] RPC: Registered tcp transport module.
[ 1.811738] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.815526] FS-Cache: Loaded
[ 1.819860] FS-Cache: Netfs 'nfs' registered for caching
[ 1.822713] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 12.496147] eth0: no IPv6 routers present
** Model information
sys_vendor: Bochs
product_name: Bochs
product_version:
chassis_vendor: Bochs
chassis_version:
bios_vendor: Bochs
bios_version: Bochs
** Loaded modules:
nfsd
nfs
nfs_acl
auth_rpcgss
fscache
lockd
sunrpc
loop
joydev
usbhid
hid
processor
psmouse
thermal_sys
virtio_balloon
evdev
serio_raw
button
snd_pcm
snd_page_alloc
snd_timer
snd
soundcore
i2c_piix4
i2c_core
pcspkr
ext4
crc16
jbd2
mbcache
btrfs
crc32c
libcrc32c
zlib_deflate
sg
sr_mod
cdrom
ata_generic
virtio_net
virtio_blk
floppy
ata_piix
uhci_hcd
ehci_hcd
usbcore
libata
scsi_mod
virtio_pci
virtio_ring
virtio
usb_common
** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 52:54:00:ad:eb:2c brd ff:ff:ff:ff:ff:ff
inet 192.168.122.214/24 brd 192.168.122.255 scope global eth0
inet6 fe80::5054:ff:fead:eb2c/64 scope link
valid_lft forever preferred_lft forever
*** Device statistics:
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
eth0: 468141 368 0 0 0 0 0 0 23718 250 0 0 0 0 0 0
*** Protocol statistics:
Ip:
350 total packets received
1 with invalid addresses
0 forwarded
0 incoming packets discarded
348 incoming packets delivered
241 requests sent out
Icmp:
0 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
0 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
Tcp:
5 active connections openings
0 passive connection openings
0 failed connection attempts
0 connection resets received
0 connections established
331 segments received
228 segments send out
0 segments retransmited
0 bad segments received.
0 resets sent
Udp:
14 packets received
0 packets to unknown port received.
0 packet receive errors
14 packets sent
UdpLite:
TcpExt:
1 TCP sockets finished time wait in fast timer
5 delayed acks sent
276 packet headers predicted
16 acknowledgments not containing data payload received
IpExt:
InMcastPkts: 3
InOctets: 460089
OutOctets: 19474
InMcastOctets: 96
** 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-
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 c160 [size=16]
Kernel driver in use: ata_piix
00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI])
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-
Latency: 0
Interrupt: pin D routed to IRQ 11
Region 4: I/O ports at c100 [size=32]
Kernel driver in use: uhci_hcd
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 fc000000 (32-bit, prefetchable) [size=32M]
Region 1: Memory at febf0000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at febd0000 [disabled] [size=64K]
00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
Subsystem: Red Hat, Inc Device [1af4:0001]
Physical Slot: 3
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 c120 [size=32]
Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at febe0000 [disabled] [size=64K]
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 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
Physical Slot: 4
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 c000 [size=64]
Region 1: Memory at febf2000 (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
00:05.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
Physical Slot: 5
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 c040 [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 [0100]: Red Hat, Inc Virtio block device [1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
Physical Slot: 6
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 c080 [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 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
Subsystem: Red Hat, Inc Device [1af4:0002]
Physical Slot: 7
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=64]
Region 1: Memory at febf5000 (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
00:08.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002]
Subsystem: Red Hat, Inc Device [1af4:0005]
Physical Slot: 8
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 c140 [size=32]
Kernel driver in use: virtio-pci
** USB devices:
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-3-amd64 (SMP w/1 CPU core)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages linux-image-3.2.0-3-amd64 depends on:
ii debconf [debconf-2.0] 1.5.46
ii initramfs-tools [linux-initramfs-tool] 0.107
ii kmod 9-1
ii linux-base 3.5
ii module-init-tools 9-1
Versions of packages linux-image-3.2.0-3-amd64 recommends:
pn firmware-linux-free <none>
Versions of packages linux-image-3.2.0-3-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-pc 1.99-22.1
pn linux-doc-3.2 <none>
Versions of packages linux-image-3.2.0-3-amd64 is related to:
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
pn firmware-iwlwifi <none>
pn firmware-libertas <none>
pn firmware-linux <none>
pn firmware-linux-nonfree <none>
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-ralink <none>
pn firmware-realtek <none>
pn xen-hypervisor <none>
-- debconf information:
linux-image-3.2.0-3-amd64/postinst/depmod-error-initrd-3.2.0-3-amd64: false
linux-image-3.2.0-3-amd64/postinst/ignoring-ramdisk:
linux-image-3.2.0-3-amd64/postinst/missing-firmware-3.2.0-3-amd64:
linux-image-3.2.0-3-amd64/prerm/removing-running-kernel-3.2.0-3-amd64: true
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