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[Bug 1477449] [NEW] kdump doesn't support network dump

 

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Problem Description
====================
kdump doesn't support dump through network. Looks like tis works fine in 15.04.
 
---uname output---
Linux pinelp2 3.19.0-22-generic #22~14.04.1-Ubuntu SMP Wed Jun 17 10:03:39 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
 
Steps to Reproduce
=====================
1. install 14.04.3
2. check /etc/default/kdump-tools, there is no options for dumping through network

Userspace tool common name: kdump-tools 
The userspace tool has the following bit modes: 64-bit 
Userspace rpm: 1.5.5-2ubuntu1 

== Comment: # - Vaishnavi Bhat <vaish123@xxxxxxxxxx> -  ==
Hi Ping Tian Han, 

Like mentioned in the bug description, I see there is no option for
dumping through network in /etc/default/kdump-tools,

Can you try manually adding NFS"<nfs location to dump vmcore>" in the
/etc/default.kdump-tools and check if this fails to dump vmcore or
successful ?

Thank you.

== Comment: # - Ping Tian Han <pthan@xxxxxxxxxx> -  ==
(In reply to comment #4)
> Hi Ping Tian Han, 
> 
> Like mentioned in the bug description, I see there is no option for dumping
> through network in /etc/default/kdump-tools,
> 
> Can you try manually adding NFS"<nfs location to dump vmcore>" in the
> /etc/default.kdump-tools and check if this fails to dump vmcore or
> successful ? 
> 
> Thank you.

I added NFS="10.33.4.4:/distros" in the file then run "service kdump-
tools restart", then triggered kdump, but it doesn't try the NFS
location, still dump to local disk.

== Comment: # - Vaishnavi Bhat <vaish123@xxxxxxxxxx> -  ==
After adding the NFS details in /etc/default/kdump-tools and restarting the kdump service, there is no NFS details while doing a 'kdump-config show'.

root@pinelp2:~# kdump-config show
USE_KDUMP:        1
KDUMP_SYSCTL:     kernel.panic_on_oops=1
KDUMP_COREDIR:    /var/crash
crashkernel addr: 
current state:    ready to kdump

kexec command:
  /sbin/kexec -p --args-linux --command-line="BOOT_IMAGE=/boot/vmlinux-3.19.0-22-generic root=UUID=8846b7fd-86b3-4823-a985-b57c279d1856 ro irqpoll maxcpus=1 nousb" --initrd=/boot/initrd.img-3.19.0-22-generic /boot/vmlinux-3.19.0-22-generic

** Affects: makedumpfile (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: architecture-ppc64le bot-comment bugnameltc-127853 severity-high targetmilestone-inin14043
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kdump doesn't support network dump
https://bugs.launchpad.net/bugs/1477449
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