[SRU][Zesty][PATCH 0/1] powerpc/64s: Handle data breakpoints in Radix mode

Joseph Salisbury joseph.salisbury at canonical.com
Wed Sep 27 15:32:40 UTC 2017


BugLink: http://bugs.launchpad.net/bugs/1706033

== SRU Justification ==
IBM found this bug while running the perftool testsuite. The perf hw 
breakpoint fails and it result in call traces, which then causes
the system to reboot.

This bug is fixed by commit d89ba5353f301971dd7d2f9fdf25c4432728f38e which is
in mainline as of v4.12-rc7.  This commit was also cc'd to upstream stable, but
Zesty never recieved it because upstream 4.10 is EOL.


== Fix ==
commit d89ba5353f301971dd7d2f9fdf25c4432728f38e
Author: Naveen N. Rao <naveen.n.rao at linux.vnet.ibm.com>
Date:   Wed Jun 14 00:12:00 2017 +0530

    powerpc/64s: Handle data breakpoints in Radix mode

== Regression Potential ==
Specific to powerpc.  Also, this commit was also cc'd to stable and accepted, so additional upstream review
was performed.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

Naveen N. Rao (1):
  powerpc/64s: Handle data breakpoints in Radix mode

 arch/powerpc/kernel/exceptions-64s.S | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

-- 
2.7.4





More information about the kernel-team mailing list