kernel-packages team mailing list archive

[Launchpad Bug Tracker <1543480@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug:

== Comment: #0  ==
Issue
====
The Ubuntu1510 guest abag3 was running with stress test IO Base and TCP. After 40 hrs it hung , unable to perform ssh and unable to access its console but able to ping the guest. Xmon was enable for guest but it didn't drop there.

[root@abakvm ~]# virsh list --all
 Id    Name                           State
----------------------------------------------------
 11    abag6                          running
 23    abag5                          running
 25    abag1                          running
 27    abag2                          running
 29    abag3                          running
 30    abag4                          running

Logs
===
[127112.624493] NIP [c0000000005183d8] __blk_mq_run_hw_queue+0x98/0x4c0
[127112.624953] LR [c0000000000d9320] process_one_work+0x1e0/0x560
[127112.625343] Call Trace:
[127112.625505] [c000000179adbb50] [c000000001578190] cur_cpu_spec+0x0/0x8 (unreliable)
[127112.626079] [c000000179adbc50] [c0000000000d9320] process_one_work+0x1e0/0x560
[127112.627154] [c000000179adbce0] [c0000000000d9830] worker_thread+0x190/0x660
[127112.627620] [c000000179adbd80] [c0000000000e2280] kthread+0x110/0x130
[127112.628084] [c000000179adbe30] [c000000000009538] ret_from_kernel_thread+0x5c/0xa4
[127112.628743] Instruction dump:
[127112.629080] 391e0188 eb1e0298 fb810088 fac10078 a12d0008 792ad182 792906a0 794a1f24 
[127112.630112] 7d48502a 7d494c36 792907e0 69290001 <0b090000> e93e0080 792a07e1 408202c8 
[127112.631318] ---[ end trace de34117cdb302980 ]---


XML of abag3
========
[root@abakvm ~]# virsh dumpxml abag3
<domain type='kvm' id='29'>
  <name>abag3</name>
  <uuid>4d73aa99-64f3-4d1d-af02-995abb29cfc5</uuid>
  <memory unit='KiB'>6291456</memory>
  <currentMemory unit='KiB'>6291456</currentMemory>
  <memoryBacking>
    <hugepages/>
  </memoryBacking>
  <vcpu placement='static'>48</vcpu>
  <cputune>
    <shares>4096</shares>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='ppc64' machine='pseries-2.4'>hvm</type>
    <boot dev='hd'/>
    <boot dev='network'/>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'>power8</model>
    <topology sockets='4' cores='3' threads='8'/>
  </cpu>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>coredump-restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-ppc64</emulator>
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw'/>
      <source dev='/dev/disk/by-id/dm-uuid-part3-mpath-1IBM_IPR-0_5EC08100000006A0'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/images/abag3_io1'/>
      <backingStore/>
      <target dev='vdb' bus='virtio'/>
      <alias name='virtio-disk1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/libvirt/images/abag3_io2'/>
      <backingStore/>
      <target dev='vdc' bus='virtio'/>
      <alias name='virtio-disk2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:c3:a0:b0'/>
      <source bridge='brenP1p5s0f1'/>
      <target dev='vnet2'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/10'/>
      <target type='isa-serial' port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </serial>
    <console type='pty' tty='/dev/pts/10'>
      <source path='/dev/pts/10'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </console>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='none' model='selinux'/>
</domain>


SYSTEM INFORMATION
---------------------------------
HOST 
KVM BUILD LEVEL:                  GA3 SP1 build 51
OPAL - FW840.10 - F4_1606A

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Taco Screen team (taco-screen-team)
         Status: New


** Tags: architecture-ppc64le bot-comment bugnameltc-136711 severity-critical targetmilestone-inin1510
-- 
ISST-KVM:Ubuntu1510:abakvm: abag3 guest hung while running stress test.
https://bugs.launchpad.net/bugs/1543480
You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.