Public bug reported:

== Comment: #0 - Ping Tian Han <pt...@cn.ibm.com> - 2017-01-09 02:51:00 ==
---Problem Description---
Vmcore cannot be saved when triggering bug 150353 on roselp4:

Copying data                       : [  2.0 %] \/usr/sbin/kdump-config: line 
591:  5502 Bus error               makedumpfile $MAKEDUMP_ARGS $vmcore_file 
$KDUMP_CORETEMP
[  512.833872] kdump-tools[5450]:  * kdump-tools: makedumpfile failed, falling 
back to 'cp'
[  573.595449] kdump-tools[5450]: cp: error reading '/proc/vmcore': Bad address
[  573.605717] kdump-tools[5450]:  * kdump-tools: failed to save vmcore in 
/var/crash/201701090223
[  573.765417] kdump-tools[5450]:  * running makedumpfile --dump-dmesg 
/proc/vmcore /var/crash/201701090223/dmesg.201701090223
[  574.285506] kdump-tools[5450]: The kernel version is not supported.
[  574.285672] kdump-tools[5450]: The makedumpfile operation may be incomplete.
[  574.285767] kdump-tools[5450]: The dmesg log is saved to 
/var/crash/201701090223/dmesg.201701090223.
[  574.305422] kdump-tools[5450]: makedumpfile Completed.
[  574.315363] kdump-tools[5450]:  * kdump-tools: saved dmesg content in 
/var/crash/201701090223
[  574.615688] kdump-tools[5450]: Mon, 09 Jan 2017 02:24:26 -0600
[  574.705384] kdump-tools[5450]: Rebooting.
         Stopping ifup for ib0...
[  OK  ] Stopped ifup for ib0.
[ 1008.579897] reboot: Restarting system
 
Contact Information = Ping Tian Han/pt...@cn.ibm.com Carrie 
Mitsuyoshi/carri...@us.ibm.com 
 
---uname output---
Linux roselp4 4.8.0-34-generic #36~16.04.1-Ubuntu SMP Wed Dec 21 18:53:20 UTC 
2016 ppc64le ppc64le ppc64le GNU/Linux
 
Machine Type = lpar 
 
---Debugger---
A debugger is not configured
 
---Steps to Reproduce---
 1. config kdump on roselp4
2. try to trigger bug 150353

 
*Additional Instructions for Ping Tian Han/pt...@cn.ibm.com Carrie 
Mitsuyoshi/carri...@us.ibm.com: 
-Post a private note with access information to the machine that the bug is 
occuring on.

== Comment: #3 - Brahadambal Srinivasan <brsri...@in.ibm.com> -
2017-01-10 02:42:25 ==

root@roselp4:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinux-4.8.0-34-generic 
root=UUID=0bcf3431-df8b-499c-9a13-33070f242e0c ro splash quiet 
crashkernel=384M-:512M

root@roselp4:~# dmesg | grep Reser
[    0.000000] Reserving 512MB of memory at 128MB for crashkernel (System RAM: 
21760MB)

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


** Tags: architecture-ppc64le bugnameltc-150355 severity-high 
targetmilestone-inin---

** Tags added: architecture-ppc64le bugnameltc-150355 severity-high
targetmilestone-inin---

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https://bugs.launchpad.net/bugs/1655280

Title:
  ISST-LTE:pVM:roselp4:ubuntu 16.04.2: cp: error reading '/proc/vmcore':
  Bad address when trying to dump vmcore

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