Comment 6 for bug 1746299

------- Comment From <email address hidden> 2018-02-15 05:50 EDT-------
(In reply to comment #10)
> Hi, Hari.
>
> It's already in bionic. However, due to some of the changes on kpti patches,
> it might fail to properly work, and there is no upstream makedumpfile fix in
> the works yet, so I am debugging and working on it, so we will get something
> that will also work for those latest kernels we have released.
>
> Thanks.
> Cascardo.

Thannk you cascardo for the update,
Yes though v1.6.3 is present in 18.04 makedumpfile still fails during dump..
===console log===
kernel used on Bionic is 4.13.0-32-generic
||/ Name Version Architecture Description
+++-====================-===============-===============-=============================================
ii makedumpfile 1:1.6.3-1 ppc64el VMcore extraction tool

Starting Kernel crash dump capture service...
[ 22.094036] kdump-tools[1360]: Starting kdump-tools: * running makedumpfile -c -d 31 /proc/vmcore /var/crash/201802150350/dump-incomplete
Checking for memory holes : [100.0 %] | readpage_elf: Attempt to read non-existent page at 0x4d39b30000.
[ 22.378312] kdump-tools[1360]: readmem: type_addr: 0, addr:c000004d39b37140, size:16384
[ 22.378411] kdump-tools[1360]: __exclude_unnecessary_pages: Can't read the buffer of struct page.
[ 22.378538] kdump-tools[1360]: create_2nd_bitmap: Can't exclude unnecessary pages.
Checking for memory holes : [100.0 %] - readpage_elf: Attempt to read non-existent page at 0x4d39b30000.
[ 22.378708] kdump-tools[1360]: readmem: type_addr: 0, addr:c000004d39b37140, size:16384
[ 22.378779] kdump-tools[1360]: __exclude_unnecessary_pages: Can't read the buffer of struct page.
[ 22.378853] kdump-tools[1360]: create_2nd_bitmap: Can't exclude unnecessary pages.
[ 22.378924] kdump-tools[1360]: makedumpfile Failed.
[ 22.379014] kdump-tools[1360]: * kdump-tools: makedumpfile failed, falling back to 'cp'