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Patch "perf intel-pt: Fix missing stack clear" has been added to the 4.12-stable tree

PATCH [email protected] 1 participant 1 message Jul 22, 2017

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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 <[email protected]> know about it.

Quoted 1 line

From 12b7080609097753fd8198cc1daf589be3ec1cca Mon Sep 17 00:00:00 2001

From: Adrian Hunter <[email protected]>
Date: Fri, 26 May 2017 11:17:04 +0300
Subject: perf intel-pt: Fix missing stack clear

From: Adrian Hunter <[email protected]>

commit 12b7080609097753fd8198cc1daf589be3ec1cca upstream.

The return compression stack must be cleared whenever there is a PSB. Fix one case where that was not happening.

---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c |    1 +
 1 file changed, 1 insertion(+)
tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +1 -0
@@ -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 [email protected] 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