This is a note to let you know that I've just added the patch titled
perf intel-pt: Fix missing stack clear
to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-intel-pt-fix-missing-stack-clear.patch
and it can be found in the queue-4.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 12b7080609097753fd8198cc1daf589be3ec1cca Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Date: Fri, 26 May 2017 11:17:04 +0300
Subject: perf intel-pt: Fix missing stack clear
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
commit 12b7080609097753fd8198cc1daf589be3ec1cca upstream.
The return compression stack must be cleared whenever there is a PSB. Fix
one case where that was not happening.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1495786658-18063-4-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 +
1 file changed, 1 insertion(+)
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1932,6 +1932,7 @@ static int intel_pt_walk_to_ip(struct in
break;
case INTEL_PT_PSB:
+ intel_pt_clear_stack(&decoder->stack);
err = intel_pt_walk_psb(decoder);
if (err)
return err;
Patches currently in stable-queue which might be from adrian.hunter@xxxxxxxxx are
queue-4.12/perf-intel-pt-ensure-ip-is-zero-when-state-is-intel_pt_state_no_ip.patch
queue-4.12/perf-intel-pt-ensure-never-to-set-last_ip-when-packet-count-is-zero.patch
queue-4.12/perf-intel-pt-use-fup-always-when-scanning-for-an-ip.patch
queue-4.12/perf-intel-pt-fix-last_ip-usage.patch
queue-4.12/perf-intel-pt-move-decoder-error-setting-into-one-condition.patch
queue-4.12/perf-intel-pt-clear-fup-flag-on-error.patch
queue-4.12/perf-intel-pt-improve-sample-timestamp.patch
queue-4.12/perf-intel-pt-fix-missing-stack-clear.patch