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spacewalker
n00b
Joined: 28 Jan 2004
Posts: 7
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 Posted: Thu Feb 13, 2014 7:59 pm Post subject: NFS root wont boot on QEMU / KVM |
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Hi folks,
driving me nuts since one entire day now: Using a recent Kernel on Host, I can's get a guest VM (KVM) to boot with root set to nfs.
1. NFS-root support compiled in
2. NFS-Server working, share confirmed working
3. Switching guest kernel Versions makes no difference
4. Different kvm drivers (virtio, e1000) on guest make no difference
5. vhost-net enabled / disabled makes no difference
Any thoughts?
qemu startup command:
| Code: |
#DEBUG: (not daemonized)
start-stop-daemon --start --pidfile /var/run/nexus.virtual.pid --exec /usr/bin/qemu-kvm -- -vnc :2 -k de -smp 2 -cpu host -m 4096 -usb -usbdevice tablet -net nic,macaddr=52:54:00:12:34:71,model=virtio -net tap,script=no,downscript=no,ifname=tap0 -serial stdio -kernel /storage/_VM/nexus/sda1.boot/Kernel-3.13.2-V1 -append "root=/dev/nfs rootdelay=5 console=ttyAMA0 console=ttyS0 ip=192.168.0.22:192.168.0.21:192.168.0.21:255.255.255.0:nexus:eth0:off nfsroot=192.168.0.21:/storage/_VM/nexus/sda4.root.use nfsrootdebug" -name $NAME,process=VM-NEXUS -pidfile /var/run/nexus.virtual.pid
|
Here is the dmesg of the guest:
| Code: |
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 3.13.2-gentoo (root@xxxx.xx) (gcc version 4.3.2 (Gentoo 4.3.2-r3 p1.6, pie-10.1.5) ) #3 SMP Thu Feb 13 17:41:32 CET 2014
[ 0.000000] Command line: root=/dev/nfs rootdelay=5 console=ttyAMA0 console=ttyS0 ip=192.168.0.22:192.168.0.21:192.168.0.21:255.255.255.0:nexus:eth0:off nfsroot=192.168.0.21:/storage/_VM/nexus/sda4.root.use nfsrootdebug
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000dfffdfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000dfffe000-0x00000000dfffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000011fffffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] SMBIOS 2.4 present.
[ 0.000000] Hypervisor detected: KVM
[ 0.000000] e820: last_pfn = 0x120000 max_arch_pfn = 0x400000000
[ 0.000000] x86 PAT enabled: cpu 0, old 0x70406, new 0x7010600070106
[ 0.000000] e820: last_pfn = 0xdfffe max_arch_pfn = 0x400000000
[ 0.000000] found SMP MP-table at [mem 0x000f1840-0x000f184f] mapped at [ffff8800000f1840]
[ 0.000000] Scanning 1 areas for low memory corruption
[ 0.000000] Using GB pages for direct mapping
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[ 0.000000] init_memory_mapping: [mem 0x11fe00000-0x11fffffff]
[ 0.000000] init_memory_mapping: [mem 0x11c000000-0x11fdfffff]
[ 0.000000] init_memory_mapping: [mem 0x100000000-0x11bffffff]
[ 0.000000] init_memory_mapping: [mem 0x00100000-0xdfffdfff]
[ 0.000000] ACPI: RSDP 00000000000f1690 000014 (v00 BOCHS )
[ 0.000000] ACPI: RSDT 00000000dfffe3f0 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: FACP 00000000dfffff80 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.000000] ACPI: DSDT 00000000dfffe430 001137 (v01 BXPC BXDSDT 00000001 INTL 20100528)
[ 0.000000] ACPI: FACS 00000000dfffff40 000040
[ 0.000000] ACPI: SSDT 00000000dffff6a0 000899 (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001)
[ 0.000000] ACPI: APIC 00000000dffff5b0 000080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.000000] ACPI: HPET 00000000dffff570 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.000000] No NUMA configuration found
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000011fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x00000000-0x11fffffff]
[ 0.000000] NODE_DATA [mem 0x11fffa000-0x11fffdfff]
[ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000000] kvm-clock: cpu 0, msr 1:1fff9001, boot clock
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00001000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal [mem 0x100000000-0x11fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00001000-0x0009efff]
[ 0.000000] node 0: [mem 0x00100000-0xdfffdfff]
[ 0.000000] node 0: [mem 0x100000000-0x11fffffff]
[ 0.000000] ACPI: PM-Timer IO Port: 0xb008
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xdfffe000-0xdfffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xe0000000-0xfeffbfff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfeffc000-0xfeffffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xff000000-0xfffbffff]
[ 0.000000] PM: Registered nosave memory: [mem 0xfffc0000-0xffffffff]
[ 0.000000] e820: [mem 0xe0000000-0xfeffbfff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on KVM
[ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 28 pages/cpu @ffff88011fc00000 s85120 r8192 d21376 u1048576
[ 0.000000] kvm-clock: cpu 0, msr 1:1fff9001, primary cpu clock
[ 0.000000] KVM setup async PF for cpu 0
[ 0.000000] kvm-stealtime: cpu 0, msr 11fc0df40
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 1032071
[ 0.000000] Policy zone: Normal
[ 0.000000] Kernel command line: root=/dev/nfs rootdelay=5 console=ttyAMA0 console=ttyS0 ip=192.168.0.22:192.168.0.21:192.168.0.21:255.255.255.0:nexus:eth0:off nfsroot=192.168.0.21:/storage/_VM/nexus/sda4.root.use nfsrootdebug
[ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.000000] Memory: 4042036K/4193904K available (11531K kernel code, 1035K rwdata, 3692K rodata, 1288K init, 1092K bss, 151868K reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2.
[ 0.000000] NR_IRQS:4352 nr_irqs:512 16
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [ttyS0] enabled
[ 0.000000] tsc: Detected 2400.030 MHz processor
[ 0.008000] Calibrating delay loop (skipped) preset value.. 4800.06 BogoMIPS (lpj=9600120)
[ 0.008000] pid_max: default: 32768 minimum: 301
[ 0.008000] Security Framework initialized
[ 0.008000] SELinux: Initializing.
[ 0.008444] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
[ 0.010963] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
[ 0.012319] Mount-cache hash table entries: 256
[ 0.013140] Initializing cgroup subsys freezer
[ 0.013851] Initializing cgroup subsys blkio
[ 0.014487] Initializing cgroup subsys hugetlb
[ 0.015206] mce: CPU supports 10 MCE banks
[ 0.016006] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.016006] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 0.016006] tlb_flushall_shift: 6
[ 0.018336] Freeing SMP alternatives memory: 44K (ffffffff82246000 - ffffffff82251000)
[ 0.024026] ACPI: Core revision 20131115
[ 0.025563] ACPI: All ACPI Tables successfully acquired
[ 0.026701] Enabling x2apic
[ 0.027181] Enabled x2apic
[ 0.027790] Switched APIC routing to physical x2apic.
[ 0.029154] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.030201] smpboot: CPU0: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz (fam: 06, model: 2c, stepping: 02)
[ 0.036000] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver.
[ 0.036000] perf_event_intel: CPUID marked event: 'bus cycles' unavailable
[ 0.036000] ... version: 2
[ 0.036000] ... bit width: 48
[ 0.036003] ... generic registers: 4
[ 0.036696] ... value mask: 0000ffffffffffff
[ 0.037610] ... max period: 000000007fffffff
[ 0.038488] ... fixed-purpose events: 3
[ 0.039153] ... event mask: 000000070000000f
[ 0.040063] KVM setup paravirtual spinlock
[ 0.040964] x86: Booting SMP configuration:
[ 0.041670] .... node #0, CPUs: #1[ 0.008000] kvm-clock: cpu 1, msr 1:1fff9041, secondary cpu clock
[ 0.056032] x86: Booted up 1 node, 2 CPUs
[ 0.056023] KVM setup async PF for cpu 1
[ 0.056023] kvm-stealtime: cpu 1, msr 11fd0df40
[ 0.057916] smpboot: Total of 2 processors activated (9600.12 BogoMIPS)
[ 0.060370] devtmpfs: initialized
[ 0.060752] kworker/u4:0 (18) used greatest stack depth: 6672 bytes left
[ 0.061319] RTC time: 19:35:04, date: 02/13/14
[ 0.064046] NET: Registered protocol family 16
[ 0.064846] kworker/u4:0 (29) used greatest stack depth: 6576 bytes left
[ 0.064846] cpuidle: using governor ladder
[ 0.064846] cpuidle: using governor menu
[ 0.065275] ACPI: bus type PCI registered
[ 0.068034] kworker/u4:0 (35) used greatest stack depth: 6144 bytes left
[ 0.068034] dca service started, version 1.12.1
[ 0.068170] PCI: Using configuration type 1 for base access
[ 0.068253] kworker/u4:0 (41) used greatest stack depth: 5808 bytes left
[ 0.092150] bio: create slab <bio-0> at 0
[ 0.096040] ACPI: Added _OSI(Module Device)
[ 0.096877] ACPI: Added _OSI(Processor Device)
[ 0.097723] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.098608] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.103248] ACPI: Interpreter enabled
[ 0.104009] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20131115/hwxface-580)
[ 0.105762] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20131115/hwxface-580)
[ 0.107104] ACPI: (supports S0 S3 S4 S5)
[ 0.107667] ACPI: Using IOAPIC for interrupt routing
[ 0.108031] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 0.109745] ACPI: No dock devices found.
[ 0.116270] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.117044] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI]
[ 0.118033] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[ 0.119597] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge.
[ 0.124153] PCI host bridge to bus 0000:00
[ 0.125025] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 0.125025] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7]
[ 0.125463] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff]
[ 0.126884] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[ 0.128040] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xfebfffff]
[ 0.144352] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI
[ 0.144352] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB
[ 0.172577] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[ 0.172577] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[ 0.173412] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[ 0.174479] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[ 0.175455] ACPI: PCI Interrupt Link [LNKS] (IRQs *9)
[ 0.176341] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 0.176993] vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.177229] vgaarb: loaded
[ 0.177624] vgaarb: bridge control possible 0000:00:02.0
[ 0.180061] SCSI subsystem initialized
[ 0.180643] ACPI: bus type USB registered
[ 0.184005] usbcore: registered new interface driver usbfs
[ 0.184845] usbcore: registered new interface driver hub
[ 0.184845] usbcore: registered new device driver usb
[ 0.184845] pps_core: LinuxPPS API ver. 1 registered
[ 0.184845] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.188025] PTP clock support registered
[ 0.188644] Advanced Linux Sound Architecture Driver Initialized.
[ 0.188957] PCI: Using ACPI for IRQ routing
[ 0.192079] NetLabel: Initializing
[ 0.192609] NetLabel: domain hash size = 128
[ 0.193251] NetLabel: protocols = UNLABELED CIPSOv4
[ 0.193251] NetLabel: unlabeled traffic allowed by default
[ 0.193251] cfg80211: Calling CRDA to update world regulatory domain
[ 0.196115] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[ 0.197163] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[ 0.197163] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[ 0.204081] Switched to clocksource kvm-clock
[ 0.211693] FS-Cache: Loaded
[ 0.220534] pnp: PnP ACPI init
[ 0.221005] ACPI: bus type PNP registered
[ 0.223071] pnp: PnP ACPI: found 8 devices
[ 0.223675] ACPI: bus type PNP unregistered
[ 0.229469] NET: Registered protocol family 2
[ 0.230440] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.231858] TCP bind hash table entries: 32768 (order: 7, 524288 bytes)
[ 0.233214] TCP: Hash tables configured (established 32768 bind 32768)
[ 0.234444] TCP: reno registered
[ 0.235051] UDP hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.236237] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
[ 0.237290] NET: Registered protocol family 1
[ 0.238077] RPC: Registered named UNIX socket transport module.
[ 0.238931] RPC: Registered udp transport module.
[ 0.239599] RPC: Registered tcp transport module.
[ 0.240285] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.241204] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[ 0.242059] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[ 0.242892] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[ 0.244090] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
[ 0.245571] PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
[ 0.246502] software IO TLB [mem 0xdbffe000-0xdfffe000] (64MB) mapped at [ffff8800dbffe000-ffff8800dfffdfff]
[ 0.247961] kvm: no hardware support
[ 0.249838] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1
[ 0.251308] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1
[ 0.252292] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
[ 0.253553] Scanning for low memory corruption every 60 seconds
[ 0.255548] audit: initializing netlink socket (disabled)
[ 0.256367] type=2000 audit(1392320104.696:1): initialized
[ 0.287130] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.295702] VFS: Disk quotas dquot_6.5.2
[ 0.296811] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.299513] FS-Cache: Netfs 'nfs' registered for caching
[ 0.300830] NFS: Registering the id_resolver key type
[ 0.301706] Key type id_resolver registered
[ 0.302446] Key type id_legacy registered
[ 0.303128] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 0.304309] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 0.305927] Key type cifs.idmap registered
[ 0.306794] msgmni has been set to 7894
[ 0.308763] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 0.309978] io scheduler noop registered
[ 0.310606] io scheduler deadline registered (default)
[ 0.311498] io scheduler cfq registered
[ 0.312496] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 0.313641] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 0.314880] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.337430] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 0.340274] Non-volatile memory driver v1.3
[ 0.341191] Linux agpgart interface v0.103
[ 0.342307] ipmi message handler version 39.2
[ 0.343123] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[ 0.344226] ACPI: Power Button [PWRF]
[ 0.345754] GHES: HEST is not enabled!
[ 0.346415] ioatdma: Intel(R) QuickData Technology Driver 4.00
[ 0.348145] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
[ 0.350181] xenfs: not registering filesystem on non-xen platform
[ 0.351492] [drm] Initialized drm 1.1.0 20060810
[ 0.352448] drm/i810 does not support SMP
[ 0.355669] loop: module loaded
[ 0.356504] nbd: registered device at major 43
[ 0.362061] blk-mq: CPU -> queue map
[ 0.362735] CPU 0 -> Queue 0
[ 0.363251] CPU 1 -> Queue 0
[ 0.363996] nullb0: unknown partition table
[ 0.364962] blk-mq: CPU -> queue map
[ 0.365627] CPU 0 -> Queue 0
[ 0.366144] CPU 1 -> Queue 0
[ 0.366930] nullb1: unknown partition table
[ 0.367859] null: module loaded
[ 0.368792] Loading iSCSI transport class v2.0-870.
[ 0.370959] iscsi: registered transport (tcp)
[ 0.371727] 3ware 9000 Storage Controller device driver for Linux v2.26.02.014.
[ 0.373109] LSI 3ware SAS/SATA-RAID Controller device driver for Linux v3.26.02.000.
[ 0.374524] VMware PVSCSI driver - version 1.0.2.0-k
[ 0.378036] scsi0 : ata_piix
[ 0.378865] scsi1 : ata_piix
[ 0.379609] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14
[ 0.380840] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15
[ 0.383258] bonding: Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
[ 0.387865] tun: Universal TUN/TAP device driver, 1.6
[ 0.388835] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[ 0.391086] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[ 0.392159] e100: Copyright(c) 1999-2006 Intel Corporation
[ 0.393270] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 0.394547] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 0.395703] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[ 0.396843] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[ 0.398085] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.0.5-k
[ 0.399345] igb: Copyright (c) 2007-2013 Intel Corporation.
[ 0.400571] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.0.2-k
[ 0.401994] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 0.403215] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver - version 3.15.1-k
[ 0.404661] ixgbe: Copyright (c) 1999-2013 Intel Corporation.
[ 0.405664] ixgbevf: Intel(R) 10 Gigabit PCI Express Virtual Function Network Driver - version 2.11.3-k
[ 0.407021] ixgbevf: Copyright (c) 2009 - 2012 Intel Corporation.
[ 0.408088] i40e: Intel(R) Ethernet Connection XL710 Network Driver - version 0.3.11-k
[ 0.409252] i40e: Copyright (c) 2013 Intel Corporation.
[ 0.410188] ixgb: Intel(R) PRO/10GbE Network Driver - version 1.0.135-k2-NAPI
[ 0.411244] ixgb: Copyright (c) 1999-2008 Intel Corporation.
[ 0.412341] sky2: driver version 1.30
[ 0.413844] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.414830] ehci-pci: EHCI PCI platform driver
[ 0.415572] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.416567] ohci-pci: OHCI PCI platform driver
[ 0.417440] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.419627] uhci_hcd 0000:00:01.2: UHCI Host Controller
[ 0.420769] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1
[ 0.422009] uhci_hcd 0000:00:01.2: detected 2 ports
[ 0.422902] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c020
[ 0.423946] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
[ 0.425149] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.426376] usb usb1: Product: UHCI Host Controller
[ 0.427236] usb usb1: Manufacturer: Linux 3.13.2-gentoo uhci_hcd
[ 0.428321] usb usb1: SerialNumber: 0000:00:01.2
[ 0.429461] hub 1-0:1.0: USB hub found
[ 0.430015] hub 1-0:1.0: 2 ports detected
[ 0.430939] usbcore: registered new interface driver usblp
[ 0.431853] usbcore: registered new interface driver usb-storage
[ 0.433029] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[ 0.434943] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 0.435700] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 0.436710] mousedev: PS/2 mouse device common for all mice
[ 0.438111] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[ 0.439477] I2O subsystem v1.325
[ 0.440025] i2o: max drivers = 8
[ 0.442567] I2O Configuration OSM v1.323
[ 0.443907] I2O Bus Adapter OSM v1.317
[ 0.444662] I2O Block Device OSM v1.325
[ 0.445669] I2O SCSI Peripheral OSM v1.316
[ 0.446522] I2O ProcFS OSM v1.316
[ 0.447272] rtc_cmos 00:00: RTC can wake from S4
[ 0.448567] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0
[ 0.449653] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs
[ 0.450861] i2c /dev entries driver
[ 0.452100] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@redhat.com
[ 0.453721] hidraw: raw HID events driver (C) Jiri Kosina
[ 0.456628] usbcore: registered new interface driver usbhid
[ 0.457606] usbhid: USB HID core driver
[ 0.458803] intel_oaktrail: Platform not recognized (You could try the module's force-parameter)
[ 0.461384] Netfilter messages via NETLINK v0.30.
[ 0.462279] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 0.463493] ctnetlink v0.93: registering with nfnetlink.
[ 0.464547] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 0.465567] TCP: cubic registered
[ 0.466167] Initializing XFRM netlink socket
[ 0.467433] NET: Registered protocol family 10
[ 0.468529] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 0.469502] sit: IPv6 over IPv4 tunneling driver
[ 0.470746] NET: Registered protocol family 17
[ 0.471559] 8021q: 802.1Q VLAN Support v1.8
[ 0.472375] Key type dns_resolver registered
[ 0.473105] openvswitch: Open vSwitch switching datapath
[ 0.475083] registered taskstats version 1
[ 0.476429] Magic number: 2:995:596
[ 0.477103] console [netcon0] enabled
[ 0.477764] netconsole: network logging started
[ 0.478917] 8021q: adding VLAN 0 to HW filter on device eth0
[ 0.492154] IP-Config: Complete:
[ 0.492977] device=eth0, hwaddr=52:54:00:12:34:71, ipaddr=192.168.0.22, mask=255.255.255.0, gw=192.168.0.21
[ 0.495625] host=nexus, domain=, nis-domain=(none)
[ 0.497046] bootserver=192.168.0.21, rootserver=192.168.0.21, rootpath=
[ 0.498832] ALSA device list:
[ 0.499517] No soundcards found.
[ 0.500724] Waiting 5 sec before mounting root device...
[ 0.537243] ata2.00: ATAPI: QEMU DVD-ROM, 1.6.1, max UDMA/100
[ 0.539273] ata2.00: configured for MWDMA2
[ 0.541114] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 1.6. PQ: 0 ANSI: 5
[ 0.543781] sr0: scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[ 0.544850] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 0.547366] sr 1:0:0:0: Attached scsi generic sg0 type 5
[ 0.740121] usb 1-1: new full-speed USB device number 2 using uhci_hcd
[ 0.906166] usb 1-1: New USB device found, idVendor=0627, idProduct=0001
[ 0.907870] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5
[ 0.909712] usb 1-1: Product: QEMU USB Tablet
[ 0.910771] usb 1-1: Manufacturer: QEMU
[ 0.911674] usb 1-1: SerialNumber: 42
[ 0.922237] input: QEMU QEMU USB Tablet as /devices/pci0000:00/0000:00:01.2/usb1/1-1/1-1:1.0/input/input4
[ 0.925426] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU QEMU USB Tablet] on usb-0000:00:01.2-1/input0
[ 1.041681] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
[ 1.248155] tsc: Refined TSC clocksource calibration: 2399.994 MHz
[ 5.504121] md: Waiting for all devices to be available before autodetect
[ 5.505449] md: If you don't use raid, use raid=noautodetect
[ 5.507325] md: Autodetecting RAID arrays.
[ 5.508080] md: Scanned 0 and added 0 devices.
[ 5.508927] md: autorun ...
[ 5.509557] md: ... autorun DONE.
[ 100.534698] VFS: Unable to mount root fs via NFS, trying floppy.
[ 100.536140] VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
[ 100.537437] Please append a correct "root=" boot option; here are the available partitions:
[ 100.538999] fc00 262144000 nullb0 (driver?)
[ 100.540338] fc01 262144000 nullb1 (driver?)
[ 100.541538] 0b00 1048575 sr0 driver: sr
[ 100.542691] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[ 100.544281] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.2-gentoo #3
[ 100.544281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.544281] 00000000fffffffa ffff88011aa53d28 ffffffff81b2e749 ffff88011aa53e28
[ 100.544281] ffffffff81b2e250 0000003000000010 ffff88011aa53e38 ffff88011aa53d58
[ 100.544281] ffffffff81e7c618 ffff88011aa53da8 ffff88011aa53e48 0000000000000000
[ 100.544281] Call Trace:
[ 100.544281] [<ffffffff81b2e749>] dump_stack+0x6a/0x76
[ 100.544281] [<ffffffff81b2e250>] panic+0xf8/0x237
[ 100.544281] [<ffffffff811eb7e8>] ? SyS_mount+0x58/0xe0
[ 100.544281] [<ffffffff8211a871>] mount_block_root+0x21f/0x24b
[ 100.544281] [<ffffffff8211a8f5>] mount_root+0x58/0x109
[ 100.544281] [<ffffffff8211aaa1>] prepare_namespace+0xfb/0x16a
[ 100.544281] [<ffffffff82119bc4>] kernel_init_freeable+0x250/0x272
[ 100.544281] [<ffffffff82119be6>] ? kernel_init_freeable+0x272/0x272
[ 100.544281] [<ffffffff81b29e70>] ? rest_init+0x80/0x80
[ 100.544281] [<ffffffff81b29e79>] kernel_init+0x9/0x130
[ 100.544281] [<ffffffff81b3ca4c>] ret_from_fork+0x7c/0xb0
[ 100.544281] [<ffffffff81b29e70>] ? rest_init+0x80/0x80
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spacewalker
n00b
Joined: 28 Jan 2004
Posts: 7
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| Posted: Fri Feb 14, 2014 3:23 pm Post subject: |
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Solved.
Short answer: Wrong NFS version.
Tricky: By default, Linux seems to mount an NFS root using NFS-V2, even with recent Kernels. I could not find any Documentation about this. Also, in recent editions of NFS-Utils, NFS V2 is disabled by default. Result: Protocol is not supported. No such error messages are displayed anywhere - not on Host NFS logs and not in DMESG of guest Kernel.
Solution here: Appended ",vers=3" to nfsroot kernel parameter in KVM startup script:
| Code: | | -kernel /storage/_VM/gentoo.blank/sda1.boot/Kernel-3.13.1-Virtual-V1 -append "root=/dev/nfs rw rootdelay=1 ip=192.168.0.55:192.168.0.21:192.168.0.2:255.255.255.0:gentoovm:eth0:off nfsroot=192.168.0.21:/storage/_VM/gentoo.blank/sda3.root,vers=3 nfsrootdebug" |
works.
Background: In an older installation of nfs-utils, the same VM would come up. After emerge world, nfs-utils got upgraded too and the VM broke. Since all other clients I have natively support all kinds of NFS versions, there seemed to be no error on NFS. And actually, there is none. The way I figured it out was to manually mount a NFS share from the client with the same options my guest kernel used while booting (these are displayed). So, forcing a NFS V2 mount on a client would fail. |
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Kernel & Hardware
