[Bug 1764246] Re: kdump kernel panics on Bionic

2018-09-26 Thread Janghoon-Paul Sim
A console screen when I triggered.

** Attachment added: "trigger.png"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1764246/+attachment/5193476/+files/trigger.png

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Title:
  kdump kernel panics on Bionic

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[Bug 1764246] Re: kdump kernel panics on Bionic

2018-09-26 Thread Janghoon-Paul Sim
kdump is not still working on 18.04.

Kernel : 4.15.0-34-generic
linux-crashdump : 4.15.0.34.36
ubuntu@u-VM-07:~$ cat /var/crash/kexec_cmd 
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-4.15.0-34-generic 
root=UUID=51adaf62-9023-4c45-bf94-889906e3d2d2 ro net.ifnames=0 biosdevname=0 
nr_cpus=1 systemd.unit=kdump-tools.service irqpoll nousb 
ata_piix.prefer_ms_hyperv=0" --initrd=/var/lib/kdump/initrd.img 
/var/lib/kdump/vmlinuz

If I trigger, the machine gets hold and no response at all.
$echo c > /proc/sysrq-trigger

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Title:
  kdump kernel panics on Bionic

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[Bug 1547463] Re: openvswitch-dpdk starting with DPDK_OPTS parameter

2016-02-19 Thread Janghoon-Paul Sim
This issue happens since DPDK_OPTS parameter is not forwarded to ovs-
ctl.

To make it working,
/etc/init/openvswitch-switch.conf should be modified like the following so that 
DPDK_OPTS parameter can be forwarded to ovs-ctl

if test X"$FORCE_COREFILES" != X; then 
set "$@" --force-corefiles="$FORCE_COREFILES" 
fi 
set "$@" $OVS_CTL_OPTS 

# To enable openvswitch-dpdk
if test X"$DPDK_OPTS" != X; then 
set "$@" --dpdk-opts="$DPDK_OPTS" 
fi

This patch works fine on my machine.

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Title:
  openvswitch-dpdk starting with DPDK_OPTS parameter

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[Bug 1547463] [NEW] openvswitch-dpdk starting with DPDK_OPTS parameter

2016-02-19 Thread Janghoon-Paul Sim
Public bug reported:

To start OpenvSwitch in DPDK mode,
Users can use parameter DPDK_OPTS in /etc/default/openvswitch-switch.
However, OpenvSwitch-dpdk doesn't start although DPDK_OPTS parameter is 
uncomment.
For example,
# DPDK options - see /usr/share/doc/openvswitch-common/INSTALL.DPDK.md.gz   

  
DPDK_OPTS='--dpdk -c 0x1 -n 4' 

What I did was,

#install openvswitch-dpdk package
$sudo apt-get install openvswitch-switch-dpdk

#enable hugepage
on /etc/default/grub
GRUB_CMDLINE_LINUX="transparent_hugepage=never hugepagesz=1G hugepages=4 
default_hugepagesz=1G"
$sudo update-grub
$sudo reboot

#mount hugepage
$sudo mount -t hugetlbfs -o pagesize=1G none /dev/hugepages

# DPDK setup
$sudo modprobe uio_pci_generic
$sudo dpdk_nic_bind --bind=uio_pci_generic p1p1

#uncomment DPDK_OPTS on /etc/default/openvswitch-switch
DPDK_OPTS='--dpdk -c 0x1 -n 4'

# update alternatives ovs-vswitchd and start openvswitch  
$sudo update-alternatives --set ovs-vswitchd 
/usr/lib/openvswitch-switch-dpdk/ovs-vswitchd-dpdk
$sudo start openvswitch-switch

# check if openvswitch-dpdk enabled
ps -ef doesn't show ovs-vswitchd process running with --dpdk option.
Also, /var/log/openvswitch/ovs-ctl.log doesn't show any DPDK relevant message.

Package version :
ubuntu@ubuntu:~$ dpkg -l | grep openvswitch 

  
ii  openvswitch-common  2.4.0-0ubuntu4~cloud0amd64  
  Open vSwitch common components
  
ii  openvswitch-switch  2.4.0-0ubuntu4~cloud0amd64  
  Open vSwitch switch implementations   
  
ii  openvswitch-switch-dpdk 2.4.0-0ubuntu1~cloud0amd64  
  DPDK enabled Open vSwitch switch implementation

** Affects: openvswitch-dpdk (Ubuntu)
 Importance: Undecided
 Status: New

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Title:
  openvswitch-dpdk starting with DPDK_OPTS parameter

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[Bug 1246236] Re: pxe boot from maas fails due to time out

2014-10-17 Thread Janghoon-Paul Sim
** Changed in: maas
   Status: Expired = New

** Changed in: maas (Ubuntu)
   Status: Expired = New

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Title:
  pxe boot from maas fails due to time out

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[Bug 1246236] Re: pxe boot from maas fails due to time out

2014-10-17 Thread Janghoon-Paul Sim
** Changed in: maas
   Status: Expired = New

** Changed in: maas (Ubuntu)
   Status: Expired = New

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Title:
  pxe boot from maas fails due to time out

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