Currently, watchdog-test keep running until it gets a SIGINT. However,
when watchdog-test is executed from the kselftests framework, where it
launches test via timeout which will send SIGTERM in time up. This could
lead to
1. watchdog haven't stop, a watchdog reset is triggered to reboot the OS
in silent.
2. kselftests gets an timeout exit code, and judge watchdog-test as
'not ok'
This patch is prepare to fix above 2 issues
Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
---
Hey,
Cover letter is here.
It's notice that a OS reboot was triggerred after ran the watchdog-test
in kselftests framwork 'make run_tests', that's because watchdog-test
didn't stop feeding the watchdog after enable it.
In addition, current watchdog-test didn't adapt to the kselftests
framework which launchs the test with /usr/bin/timeout and no timeout
is expected.
---
tools/testing/selftests/watchdog/watchdog-test.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index bc71cbca0dde..2f8fd2670897 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -27,7 +27,7 @@
int fd;
const char v = 'V';
-static const char sopts[] = "bdehp:st:Tn:NLf:i";
+static const char sopts[] = "bdehp:st:Tn:NLf:c:i";
static const struct option lopts[] = {
{"bootstatus", no_argument, NULL, 'b'},
{"disable", no_argument, NULL, 'd'},
@@ -42,6 +42,7 @@ static const struct option lopts[] = {
{"gettimeleft", no_argument, NULL, 'L'},
{"file", required_argument, NULL, 'f'},
{"info", no_argument, NULL, 'i'},
+ {"count", required_argument, NULL, 'c'},
{NULL, no_argument, NULL, 0x0}
};
@@ -95,6 +96,7 @@ static void usage(char *progname)
printf(" -n, --pretimeout=T\tSet the pretimeout to T seconds\n");
printf(" -N, --getpretimeout\tGet the pretimeout\n");
printf(" -L, --gettimeleft\tGet the time left until timer expires\n");
+ printf(" -c, --count\tStop after feeding the watchdog count times\n");
printf("\n");
printf("Parameters are parsed left-to-right in real-time.\n");
printf("Example: %s -d -t 10 -p 5 -e\n", progname);
@@ -174,7 +176,7 @@ int main(int argc, char *argv[])
unsigned int ping_rate = DEFAULT_PING_RATE;
int ret;
int c;
- int oneshot = 0;
+ int oneshot = 0, stop = 1, count = 0;
char *file = "/dev/watchdog";
struct watchdog_info info;
int temperature;
@@ -307,6 +309,9 @@ int main(int argc, char *argv[])
else
printf("WDIOC_GETTIMELEFT error '%s'\n", strerror(errno));
break;
+ case 'c':
+ stop = 0;
+ count = strtoul(optarg, NULL, 0);
case 'f':
/* Handled above */
break;
@@ -336,8 +341,8 @@ int main(int argc, char *argv[])
signal(SIGINT, term);
- while (1) {
- keep_alive();
+ while (stop || count--) {
+ exit_code = keep_alive();
sleep(ping_rate);
}
end:
--
2.44.0
