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test: check, that parasite can rollback itself (v2)

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This test uses systemtap to replace random parasite command on
invalide command. The parasite code received this command and should
rollback itself. CRIU didn't recived ack, should understand that
something wrong and exits. The systemtap inverts exit code of criu.

"zdtm.sh -d" is used for executing tests and testing that the state of
processes don't corrupted.

criu should be compiled without optimizations (make DEBUG=1)

v2: randomize a command, which will be replaced
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2013-08-06 15:11:12 +04:00
committed by Pavel Emelyanov
parent 0a1b70bb23
commit b95407e264
3 changed files with 53 additions and 1 deletions
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8
test/Makefile
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@@ -3,12 +3,18 @@ EXP = '^ns/(?!.*(tty|pty))'
.FORCE:
all: .FORCE
$(MAKE) zdtm
zdtm: .FORCE
$(MAKE) zdtm_ns
for t in $(shell echo "$(TST)" | tr ' ' '\n' | grep -Pv $(EXP)); do \
$(MAKE) $$t || break; \
done
fault-injection: .FORCE
$(MAKE) -C fault-injection
zdtm_ns: $(shell echo "$(TST)" | tr ' ' '\n' | grep -P $(EXP))
$(TST):
./zdtm.sh $(@) &> $(subst /,_,$@).log

2
test/fault-injection/Makefile Normal file
View File

@@ -0,0 +1,2 @@
all:
stap -g -d ../../criu parasite.stp $$RANDOM -c 'bash -x ../zdtm.sh -d -x socket-tcp'

44
test/fault-injection/parasite.stp Normal file
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@@ -0,0 +1,44 @@
global i, n, fini_cmd = -1, last_cmd
probe process("../../criu").begin
{
i = 0;
/* randint() returns numbers multiple of 5 */
n = randint(20 * 5) / 5
printf("The %d command will be replaced on -1\n", n);
}
probe process("../../criu").function("__parasite_execute_daemon")
{
printf("%s\n", $$parms);
last_cmd = $cmd;
if (++i > n) {
printf("Send invalid command to parasite\n");
$cmd = -1;
}
}
probe process("../../criu").function("__parasite_execute_daemon").return
{
printf("%d\n", $return);
}
probe process("../../criu").function("main").return
{
printf("CRIU exits with code %d\n", $return);
if ( i > n) {
if ($return)
$return = 0;
else {
printf("CRIU exited with zero code\n");
if (fini_cmd < 0 || fini_cmd == last_cmd) {
printf("%d looks like FINI command\n", n);
fini_cmd = last_cmd
} else {
printf("This is the second FINI command %d (%d)",
n, fini_cmd);
$return = 1;
}
}
}
}