kernel-packages team mailing list archive

[Serge Hallyn <1448269@xxxxxxxxxxxxxxxxxx>]

Quoting Chris J Arges (1448269@xxxxxxxxxxxxxxxxxx):
> 1) Can you dump the domain XML (if using libvirt), or qemu command used to invoke the VM. I'm wondering if there is some cpu feature mismatch going on.

<domain type='kvm'>
  <name>p9</name>
  <uuid>558ac100-65d0-437b-b19b-7d8946b92b8d</uuid>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>4</vcpu>
  <os>
    <type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='unsafe'/>
      <source file='/var/lib/uvtool/libvirt/images/p9.qcow'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='unsafe'/>
      <source file='/var/lib/uvtool/libvirt/images/p9-ds.qcow'/>
      <target dev='vdb' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <interface type='network'>
      <mac address='52:54:00:0b:4c:35'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'>
      <listen type='address' address='127.0.0.1'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </memballoon>
  </devices>
</domain>

> 2) Can you do 'tail /sys/module/kvm_intel/parameters/*'?

==> /sys/module/kvm_intel/parameters/emulate_invalid_guest_state <==
Y

==> /sys/module/kvm_intel/parameters/enable_apicv <==
N

==> /sys/module/kvm_intel/parameters/enable_shadow_vmcs <==
N

==> /sys/module/kvm_intel/parameters/ept <==
Y

==> /sys/module/kvm_intel/parameters/eptad <==
N

==> /sys/module/kvm_intel/parameters/fasteoi <==
Y

==> /sys/module/kvm_intel/parameters/flexpriority <==
Y

==> /sys/module/kvm_intel/parameters/nested <==
Y

==> /sys/module/kvm_intel/parameters/ple_gap <==
0

==> /sys/module/kvm_intel/parameters/ple_window <==
4096

==> /sys/module/kvm_intel/parameters/unrestricted_guest <==
N

==> /sys/module/kvm_intel/parameters/vmm_exclusive <==
Y

==> /sys/module/kvm_intel/parameters/vpid <==
Y

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https://bugs.launchpad.net/bugs/1448269

Title:
  qemu guest hangs on nested kvm startup with host kernel oops

Status in linux package in Ubuntu:
  Triaged

Bug description:
  I'm creating a vivid qemu guest on a trusty host with
  3.13.0-48-generic kernel.  When I start a guest inside that guest, I
  get the oops below on the host while the first guest hangs and must be
  (virsh) destroyed.

  Apr 24 20:40:08 sergeh2 kernel: [1575627.844208] ------------[ cut here ]------------
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844227] WARNING: CPU: 2 PID: 17176 at /build/buildd/linux-3.13.0/arch/x86/kvm/vmx.c:8414 nested_vmx_vmexit+0x11c/0x150 [kvm_intel]()
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844229] Modules linked in: vhost_net vhost macvtap macvlan xts gf128mul xt_conntrack ipt_REJECT ip6table_filter ip6_tables ebtable_nat ebtables veth xt_nat xt_CHECKSUM iptable_mangle ipt_MASQUERADE
  iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables dm_crypt gpio_ich coretemp kvm_intel kvm i7core_edac edac_core lpc_ich shpchp mac_hid serio_raw lp parp
  ort btrfs libcrc32c raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear dm_snapshot raid1 nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper drm ahci r8169 libahci mii wmi
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844281] CPU: 2 PID: 17176 Comm: qemu-system-x86 Not tainted 3.13.0-48-generic #80-Ubuntu
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844283] Hardware name: MSI MS-7522/MSI X58 Pro (MS-7522)  , BIOS V8.14B8 11/09/2012
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844286]  0000000000000009 ffff880907561c98 ffffffff81721506 0000000000000000
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844290]  ffff880907561cd0 ffffffff810677dd ffff880bfa808000 0000000000000014
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844293]  ffff8806da7a7000 ffff880bfca9c800 0000000000000000 ffff880907561ce0
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844297] Call Trace:
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844305]  [<ffffffff81721506>] dump_stack+0x45/0x56
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844310]  [<ffffffff810677dd>] warn_slowpath_common+0x7d/0xa0
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844314]  [<ffffffff810678ba>] warn_slowpath_null+0x1a/0x20
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844321]  [<ffffffffa081f8ec>] nested_vmx_vmexit+0x11c/0x150 [kvm_intel]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844327]  [<ffffffffa081fafd>] vmx_queue_exception+0xfd/0x140 [kvm_intel]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844347]  [<ffffffffa03b7020>] vcpu_enter_guest+0x9f0/0xce0 [kvm]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844364]  [<ffffffffa03bb2d8>] kvm_arch_vcpu_ioctl_run+0x1e8/0x460 [kvm]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844376]  [<ffffffffa03a5042>] kvm_vcpu_ioctl+0x2a2/0x5e0 [kvm]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844381]  [<ffffffff810aaa38>] ? __wake_up_common+0x58/0x90
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844387]  [<ffffffff811ffc91>] ? fsnotify+0x241/0x320
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844391]  [<ffffffff811d11c0>] do_vfs_ioctl+0x2e0/0x4c0
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844406]  [<ffffffffa03b0504>] ? kvm_on_user_return+0x74/0x80 [kvm]
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844409]  [<ffffffff811d1421>] SyS_ioctl+0x81/0xa0
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844414]  [<ffffffff81731fbd>] system_call_fastpath+0x1a/0x1f
  Apr 24 20:40:08 sergeh2 kernel: [1575627.844416] ---[ end trace 351396e62b6ef224 ]---
  Apr 24 20:48:29 sergeh2 dnsmasq-dhcp[1409]: DHCPREQUEST(lxcbr0) 10.0.3.104 00:16:3e:72:73:32

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-48-generic 3.13.0-48.80
  ProcVersionSignature: Ubuntu 3.13.0-48.80-generic 3.13.11-ckt16
  Uname: Linux 3.13.0-48-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Apr 10 14:22 seq
   crw-rw---- 1 root audio 116, 33 Apr 10 14:22 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Fri Apr 24 20:59:31 2015
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  MachineType: MSI MS-7522
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-48-generic root=UUID=d1920c3b-419d-484b-b1f2-5cbc69ef62f5 ro nomodeset intel_pstate=enable nomdmonddf nomdmonisw
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 11/09/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V8.14B8
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: MSI X58 Pro (MS-7522)
  dmi.board.vendor: MSI
  dmi.board.version: 3.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.chassis.version: 3.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV8.14B8:bd11/09/2012:svnMSI:pnMS-7522:pvr3.0:rvnMSI:rnMSIX58Pro(MS-7522):rvr3.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr3.0:
  dmi.product.name: MS-7522
  dmi.product.version: 3.0
  dmi.sys.vendor: MSI

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