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[SRU,Artful,0/3] Fixes for LP:1776211

Message ID cover.1528729715.git.joseph.salisbury@canonical.com
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Series Fixes for LP:1776211 | expand

Message

Joseph Salisbury June 13, 2018, 3:54 p.m. UTC
BugLink: http://bugs.launchpad.net/bugs/1776211

== SRU Justification ==
IBM has requested these three commits in Artful.  In Artful, kdump fails to
capture dump when smt=2 or off.

Including these three commits allows kdump to work properly.

== Fixes ==
4388c9b3a6ee ("powerpc: Do not send system reset request through the oops path")
04b9c96eae72 ("powerpc/crash: Remove the test for cpu_online in the IPI callback")
4552d128c26e ("powerpc: System reset avoid interleaving oops using die synchronisation")

== Regression Potential ==
Low.  Fixes are limited to powerpc.

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

Balbir Singh (1):
  powerpc/crash: Remove the test for cpu_online in the IPI callback

Nicholas Piggin (2):
  powerpc: Do not send system reset request through the oops path
  powerpc: System reset avoid interleaving oops using die
    synchronisation

 arch/powerpc/kernel/crash.c |  3 ---
 arch/powerpc/kernel/traps.c | 45 ++++++++++++++++++++++++++++++---------------
 2 files changed, 30 insertions(+), 18 deletions(-)

Comments

Thadeu Lima de Souza Cascardo June 13, 2018, 5:28 p.m. UTC | #1
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Stefan Bader June 18, 2018, 7:12 a.m. UTC | #2
On 13.06.2018 17:54, Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1776211
> 
> == SRU Justification ==
> IBM has requested these three commits in Artful.  In Artful, kdump fails to
> capture dump when smt=2 or off.
> 
> Including these three commits allows kdump to work properly.
> 
> == Fixes ==
> 4388c9b3a6ee ("powerpc: Do not send system reset request through the oops path")
> 04b9c96eae72 ("powerpc/crash: Remove the test for cpu_online in the IPI callback")
> 4552d128c26e ("powerpc: System reset avoid interleaving oops using die synchronisation")
> 
> == Regression Potential ==
> Low.  Fixes are limited to powerpc.
> 
> == Test Case ==
> A test kernel was built with these patches and tested by the original bug reporter.
> The bug reporter states the test kernel resolved the bug.
> 
> Balbir Singh (1):
>   powerpc/crash: Remove the test for cpu_online in the IPI callback
> 
> Nicholas Piggin (2):
>   powerpc: Do not send system reset request through the oops path
>   powerpc: System reset avoid interleaving oops using die
>     synchronisation
> 
>  arch/powerpc/kernel/crash.c |  3 ---
>  arch/powerpc/kernel/traps.c | 45 ++++++++++++++++++++++++++++++---------------
>  2 files changed, 30 insertions(+), 18 deletions(-)
> 
Artful reaches EOL and this issue does not sound like a critical one to me. If
those changes are not yet in Bionic, we should get them applied there instead.

-Stefan