From: Thomas Richter <tmricht@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
acme@kernel.org, hca@linux.ibm.com, gor@linux.ibm.com,
sumanthk@linux.ibm.com
Cc: svens@linux.ibm.com, Thomas Richter <tmricht@linux.ibm.com>
Subject: [PATCH 2/2] perf/test: Fix perf test 89 on x86
Date: Tue, 13 Dec 2022 11:57:29 +0100 [thread overview]
Message-ID: <20221213105729.1447368-2-tmricht@linux.ibm.com> (raw)
In-Reply-To: <20221213105729.1447368-1-tmricht@linux.ibm.com>
perf test '89: probe libc's inet_pton & backtrace it with ping'
fails on x86. Debugging revealed a changed stack trace for the
ping command using probes:
ping 35729 [002] 8006.365063: probe_libc:inet_pton: (3ff9603e7c0)
12be50 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
4fca main+0x139b (/usr/bin/ping)
The line getaddrinfo.... in the call stack is gone.
It was introduced with glibc version 2.36.8 released
with Fedora 37.
Output before on x86
# ./perf test 89
89: probe libc's inet_pton & backtrace it with ping : FAILED!
#
Output after on x86:
# ./perf test 89
89: probe libc's inet_pton & backtrace it with ping : Ok
#
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
---
tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 1 -
1 file changed, 1 deletion(-)
diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
index 0f01c62cbee9..51ae8b906055 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -50,7 +50,6 @@ trace_libc_inet_pton_backtrace() {
;;
*)
eventattr='max-stack=3'
- echo "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc\)$" >> $expected
echo ".*(\+0x[[:xdigit:]]+|\[unknown\])[[:space:]]\(.*/bin/ping.*\)$" >> $expected
;;
esac
--
2.38.1
next prev parent reply other threads:[~2022-12-13 10:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-13 10:57 [PATCH 1/2] perf/test: Fix perf test 84 on s390 Thomas Richter
2022-12-13 10:57 ` Thomas Richter [this message]
2022-12-13 14:46 ` [PATCH 2/2] perf/test: Fix perf test 89 on x86 Arnaldo Carvalho de Melo
2022-12-14 10:40 ` Thomas Richter
2022-12-14 14:34 ` Arnaldo Carvalho de Melo
-- strict thread matches above, loose matches on Subject: below --
2022-12-13 10:37 [PATCH 1/2] perf/test: Fix perf test 84 on s390 Thomas Richter
2022-12-13 10:37 ` [PATCH 2/2] perf/test: Fix perf test 89 on x86 Thomas Richter
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