** Changed in: linux (Ubuntu Zesty)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1709964
Title:
Ubuntu 16.04.03: perf tool does not count pm_run_inst_cmpl with rcode
on POWER9 DD2.0
Status in The Ubuntu-power-systems project:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Zesty:
Fix Committed
Bug description:
== SRU Justification ==
Ubuntu 16.04.03: perf tool does not count pm_run_inst_cmpl with rcode on
POWER9 DD2.0.
This is a regression introduced by mainline commit 8d911904f3ce. This
regression
is resolved by commit 8c218578fcbbbdb10416c8614658bf32e3bf1655.
Commit 8c218578fc is available in mailine as of 4.12-rc5.
---Problem Description---
Unable to count pm_run_inst_cmpl using perf tool on boston dd2.0
root@isvbos3:~# perf stat -e r500fa,r600f4 -a sleep 1
Performance counter stats for 'system wide':
<not supported> r500fa
8,162,912 r600f4
1.001562716 seconds time elapsed
---uname output---
Linux isvbos3 4.10.0-29-generic #33~16.04.1-Ubuntu SMP Tue Jul 25 18:17:06
UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
Machine Type = p9 dd2.0
---Steps to Reproduce---
root@isvbos3:~# perf stat -e r500fa,r600f4 -a sleep 1
Performance counter stats for 'system wide':
<not supported> r500fa
8,162,912 r600f4
1.001562716 seconds time elapsed
> Also we need this upstream fix 8c218578fcbbbdb10416c8614658bf32e3bf1655 in
> the distro.
$ git log 8c218578fcbbbdb10416c8614658 -1
commit 8c218578fcbbbdb10416c8614658bf32e3bf1655
Author: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
Date: Fri May 26 13:38:27 2017 +0530
powerpc/perf: Fix Power9 test_adder fields
Commit 8d911904f3ce4 ('powerpc/perf: Add restrictions to PMC5 in power9
DD1')
was added to restrict the use of PMC5 in Power9 DD1. Intention was to
disable
the use of PMC5 using raw event code. But instead of updating the
power9_isa207_pmu structure (used on DD1), the commit incorrectly updated
the
power9_pmu structure. Fix it.
Fixes: 8d911904f3ce ("powerpc/perf: Add restrictions to PMC5 in power9
DD1")
Reported-by: Shriya <shri...@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
Tested-by: Shriya <shri...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
$ git describe --contains 8c218578fcbbbdb
v4.12-rc7~9^2~13
$
Commit 8c218578fc is available with kernel 4.12-rc7 afterwards.
I don't see this fix in the Ubuntu 16.04.3 Zesty tree (the P9 hwe
kernel, 4.10 based).
Need to mirror to Canonical to request they pull in:
8c218578fcbbbdb10416c8614658bf32e3bf1655
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