------- Comment From [email protected] 2018-06-15 04:33 EDT-------
The proposed Bionic kernel enables the 'Implement reliable stack tracing for 
the consistency model' patch.

In brief:
------------
After upgrading the system by enabling bionic-proposed to sources.list:
deb http://archive.ubuntu.com/ubuntu/ bionic-proposed restricted main 
multiverse universe

system booted into kernel version 4.15.0-24-generic, using 4.15.0-24-generic 
sources (apt source linux) to build livepatch modules:
# insmod ./livepatch-0001-mm-thp-Do-not-make-page-table-dir.ko
# dmesg
.....
[ 1827.037453] livepatch_0001_mm_thp_Do_not_make_page_table_dir: loading 
out-of-tree module taints kernel.
[ 1827.037458] livepatch_0001_mm_thp_Do_not_make_page_table_dir: tainting 
kernel with TAINT_LIVEPATCH
[ 1827.043106] livepatch_0001_mm_thp_Do_not_make_page_table_dir: module 
verification failed: signature and/or required key missing - tainting kernel
[ 1827.176933] livepatch: enabling patch 
'livepatch_0001_mm_thp_Do_not_make_page_table_dir'
[ 1827.179784] livepatch: 'livepatch_0001_mm_thp_Do_not_make_page_table_dir': 
starting patching transition
[ 1827.179785] livepatch: 'livepatch_0001_mm_thp_Do_not_make_page_table_dir': 
patching complete
[ 2526.521348] livepatch: 'livepatch_0001_mm_thp_Do_not_make_page_table_dir': 
starting unpatching transition
[ 2526.525554] livepatch: 'livepatch_0001_mm_thp_Do_not_make_page_table_dir': 
unpatching complete

** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic

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https://bugs.launchpad.net/bugs/1771844

Title:
  powerpc/livepatch: Implement reliable stack tracing for the
  consistency model

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