diff --git a/meta-openembedded/meta-oe/recipes-kernel/pm-graph/pm-graph/0001-sleepgraph.py-parse-unfished-cpu-exec-line.patch b/meta-openembedded/meta-oe/recipes-kernel/pm-graph/pm-graph/0001-sleepgraph.py-parse-unfished-cpu-exec-line.patch
new file mode 100644
index 0000000..3355727
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-kernel/pm-graph/pm-graph/0001-sleepgraph.py-parse-unfished-cpu-exec-line.patch
@@ -0,0 +1,51 @@
+From 9bbc991a927722439cad38c892fc9f57207089d3 Mon Sep 17 00:00:00 2001
+From: Liwei Song <liwei.song@windriver.com>
+Date: Mon, 24 May 2021 08:27:28 +0000
+Subject: [PATCH] sleepgraph.py: parse unfished cpu exec line
+
+exist the below case in ftrace file:
+sleepgraph-6508    [003] .... 18197.824037: tracing_mark_write: ps - xxx..., lock_torture_wr-94 169,lock_torture_wr-95 143,lock_tort
+sleepgraph-6508    [003] .... 18197.824043: tracing_mark_write: ure_wr-96 189,lock_torture_wr-97 174,lock_torture_wr-98 160,lock_torture_st-99 1
+
+lock_torture_wr-96 was split to different line due to limited buffer
+size(1k) set in kernel, check this case and re-parse the unfinished
+line.
+
+Upstream-Status: [Submitted: https://github.com/intel/pm-graph/pull/20]
+
+Signed-off-by: Liwei Song <liwei.song@windriver.com>
+---
+ sleepgraph.py | 17 +++++++++++++++--
+ 1 file changed, 15 insertions(+), 2 deletions(-)
+
+diff --git a/sleepgraph.py b/sleepgraph.py
+index e340d5b3f03b..38b4439db8eb 100755
+--- a/sleepgraph.py
++++ b/sleepgraph.py
+@@ -3365,8 +3365,21 @@ def parseTraceLog(live=False):
+ 					val = ps.split()
+ 					if not val:
+ 						continue
+-					name = val[0].replace('--', '-')
+-					proclist[name] = int(val[1])
++					if not len(val) < 2:
++						name = val[0].replace('--', '-')
++						proclist[name] = int(val[1])
++					else:
++						proclist = dict()
++						nextline = next(tf)
++						mcont = re.match(tp.ftrace_line_fmt, nextline)
++						n = m.group('ps') + mcont.group('msg').split(': ')[1]
++						for pscont in n.split(','):
++							val = pscont.split()
++							if not val:
++								continue
++							if not len(val) < 2:
++								name = val[0].replace('--', '-')
++								proclist[name] = int(val[1])
+ 				data.pstl[t.time] = proclist
+ 				continue
+ 		# find the end of resume
+-- 
+2.29.2
+