From: Masayoshi Mizuma <msys.mizuma@gmail.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Masayoshi Mizuma <msys.mizuma@gmail.com>,
Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH] ktest: Add workaround to avoid unexpected power cycle
Date: Wed, 17 Apr 2019 16:14:42 -0400 [thread overview]
Message-ID: <20190417201442.15030-1-msys.mizuma@gmail.com> (raw)
From: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Unexpected power cycle occurs while the installation of the
kernel.
That is because the default reboot command, "ssh $SSH_USER@$MACHINE
reboot" exits as 255 even if the reboot is successfully done,
like as:
]# ssh root@Test reboot
Connection to Test closed by remote host.
]# echo $?
255
]#
To avoid the unexpected power cycle, the reboot is considered as
successfully done if the reboot is the default command and the
return code is 255.
Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
---
tools/testing/ktest/ktest.pl | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index ea07d43856b8..765c6bc83ab4 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1737,6 +1737,11 @@ sub run_command {
my $dord = 0;
my $dostdout = 0;
my $pid;
+ my $is_default_reboot = 0;
+
+ if ($command eq $default{REBOOT}) {
+ $is_default_reboot = 1;
+ }
$command =~ s/\$SSH_USER/$ssh_user/g;
$command =~ s/\$MACHINE/$machine/g;
@@ -1791,6 +1796,10 @@ sub run_command {
# shift 8 for real exit status
$run_command_status = $? >> 8;
+ if ($run_command_status == 255 && $is_default_reboot) {
+ $run_command_status = 0;
+ }
+
close(CMD);
close(LOG) if ($dolog);
close(RD) if ($dord);
--
2.20.1
next reply other threads:[~2019-04-17 20:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-17 20:14 Masayoshi Mizuma [this message]
2019-04-17 20:29 ` [PATCH] ktest: Add workaround to avoid unexpected power cycle Steven Rostedt
2019-04-17 20:59 ` Masayoshi Mizuma
2019-04-18 2:22 ` Steven Rostedt
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