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[Bug 1265722] Re: ppc64el: 14.04 alpha 1 build has call traces -- ERROR: Bad of_node_put() on /pci@800000020000000


Looks like a known upstream issue. A fix has been submitted:


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  ppc64el: 14.04 alpha 1 build has call traces -- ERROR: Bad
  of_node_put() on /pci@800000020000000

Status in “linux” package in Ubuntu:

Bug description:
  Install Ubuntu ppc64el guest image on Power 8 machine using kvm

  [root@lep8a Ubuntu_alpha1]# qemu-system-ppc64 -enable-kvm -M pseries
  -cpu POWER8 -smp cores=4,threads=1 -m 70G -nographic -append
  "earlyprintk root=/dev/sda console=hvc0 --no-sessions" -kernel trusty-
  server-cloudimg-ppc64el-vmlinuz-generic -device spapr-vscsi -drive
  file=trusty-server-cloudimg-ppc64el.img.qcow2 -net nic,model=e1000
  -net tap,ifname=tap0,script=qemu-ifup,downscript=no

  Ubuntu Trusty Tahr (development branch) ubuntu hvc0

  ubuntu login: ubuntu
  Last login: Tue Dec 24 18:09:11 UTC 2013 on hvc0
  Welcome to Ubuntu Trusty Tahr (development branch) (GNU/Linux 3.13.0-0-generic ppc64le)

   * Documentation:  https://help.ubuntu.com/

    System information as of Tue Dec 24 18:09:11 UTC 2013

    System load:  0.0               Processes:           86
    Usage of /:   1.4% of 49.18GB   Users logged in:     0
    Memory usage: 0%                IP address for eth0:
    Swap usage:   0%

    Graph this data and manage this system at:

    Get cloud support with Ubuntu Advantage Cloud Guest:

  0 packages can be updated.
  0 updates are security updates.

  ubuntu@ubuntu:~$ dmesg | more

  IOMMU table initialized, virtual merging enabled
  ERROR: Bad of_node_put() on /pci@800000020000000
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.13.0-0-generic #10+ppc64el-Ubuntu
  Call Trace:
  [c00000117118b570] [c00000000001553c] .show_stack+0x7c/0x1f0 (unreliable)
  [c00000117118b640] [c0000000009fc480] .dump_stack+0x88/0xb4
  [c00000117118b6c0] [c000000000854818] .of_node_release+0xd8/0xf0
  [c00000117118b750] [c00000000085a2fc] .of_irq_parse_one+0x13c/0x1f0
  [c00000117118b800] [c00000000085b42c] .of_irq_parse_pci+0x3c/0x1d0
  [c00000117118b8a0] [c00000000003abbc] .pcibios_setup_device+0x8c/0x190
  [c00000117118b970] [c00000000003bfa0] .pcibios_setup_bus_devices+0x50/0x80
  [c00000117118b9f0] [c00000000003d4a4] .__of_scan_bus+0x114/0x1b0
  [c00000117118baa0] [c00000000003ca1c] .pcibios_scan_phb+0x27c/0x2f0
  [c00000117118bb60] [c000000000e1f2c4] .pcibios_init+0x80/0xd8
  [c00000117118bbf0] [c00000000000bf84] .do_one_initcall+0x154/0x1b0
  [c00000117118bce0] [c000000000e14e30] .kernel_init_freeable+0x25c/0x33c
  [c00000117118bdb0] [c00000000000c73c] .kernel_init+0x1c/0x160
  [c00000117118be30] [c00000000000a160] .ret_from_kernel_thread+0x5c/0x7c
  PCI: Probing PCI hardware done

  The above call trace is got in the dmesg output.

  ubuntu@ubuntu:~$ dpkg --list | grep kernel
  ii  kmod                             15-0ubuntu5                      ppc64el      tools for managing Linux kernel modules
  ii  libdrm2:ppc64el                  2.4.50-1                         ppc64el      Userspace interface to kernel DRM services -- runtime
  ii  linux-headers-3.13.0-0           3.13.0-0.10+ppc64el              all          Header files related to Linux kernel version 3.13.0
  ii  linux-headers-3.13.0-0-generic   3.13.0-0.10+ppc64el              ppc64el      Linux kernel headers for version 3.13.0 on PowerPC 64el SMP
  ii  linux-headers-generic                ppc64el      Generic Linux kernel headers
  ii  linux-image-3.13.0-0-generic     3.13.0-0.10+ppc64el              ppc64el      Linux kernel image for version 3.13.0 on PowerPC 64el SMP
  ii  linux-image-virtual                  ppc64el      This package will always depend on the latest minimal generic kernel image.
  ii  linux-virtual                        ppc64el      Minimal Generic Linux kernel and headers
  ii  rsyslog                          7.4.4-1ubuntu2                   ppc64el      reliable system and kernel logging daemon

  ubuntu@ubuntu:~$ uname -a
  Linux ubuntu 3.13.0-0-generic #10+ppc64el-Ubuntu SMP Tue Dec 24 10:56:51 UTC 2013 ppc64le ppc64le ppc64le GNU/Linux
  ubuntu@ubuntu:~$ lsb_release -rd
  Description:    Ubuntu Trusty Tahr (development branch)
  Release:        14.04

  ubuntu@ubuntu:~$ apt-cache policy pkgname
  N: Unable to locate package pkgname

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