[CRIU] [PATCH] test: check, that parasite can rollback itself

[Pavel Emelyanov]

On 06/14/2013 03:31 PM, Andrey Vagin wrote:
> This test uses systemtap to replace the fourth parasite command on

I don't like "the fourth" part. Can we randomize it?

> 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.
> 
> Signed-off-by: Andrey Vagin <avagin at openvz.org>
> ---
>  test/Makefile                     |  9 ++++++++-
>  test/fault-injection/Makefile     |  2 ++
>  test/fault-injection/parasite.stp | 32 ++++++++++++++++++++++++++++++++
>  3 files changed, 42 insertions(+), 1 deletion(-)
>  create mode 100644 test/fault-injection/Makefile
>  create mode 100644 test/fault-injection/parasite.stp
> 
> diff --git a/test/Makefile b/test/Makefile
> index df46688..3e6e656 100644
> --- a/test/Makefile
> +++ b/test/Makefile
> @@ -3,12 +3,19 @@ EXP = '^ns/(?!.*(tty|pty))'
>  
>  .FORCE:
>  
> +all: .FORCE
> +	$(MAKE) zdtm
> +	$(MAKE) -C fault-injection
> +
>  zdtm: .FORCE
>  	$(MAKE) zdtm_ns
>  	for t in $(shell echo "$(TST)" | tr ' ' '\n' | grep -Pv $(EXP)); do \
>  		$(MAKE) $$t || break;	\
>  	done
> -	
> +
> +fault-injection: .FORCE
> +	$(MAKE) -C fault-injection
> +
>  zdtm_ns: $(shell echo "$(TST)" | tr ' ' '\n' | grep -P $(EXP))
>  $(TST):
>  	./zdtm.sh $(@) &> $(subst /,_,$@).log
> diff --git a/test/fault-injection/Makefile b/test/fault-injection/Makefile
> new file mode 100644
> index 0000000..501e37f
> --- /dev/null
> +++ b/test/fault-injection/Makefile
> @@ -0,0 +1,2 @@
> +all:
> +	stap -g -d ../../criu parasite.stp -c 'bash -x ../zdtm.sh -d static/sigpending'
> diff --git a/test/fault-injection/parasite.stp b/test/fault-injection/parasite.stp
> new file mode 100644
> index 0000000..0b1a400
> --- /dev/null
> +++ b/test/fault-injection/parasite.stp
> @@ -0,0 +1,32 @@
> +global i
> +
> +probe process("../../criu").begin
> +{
> +	i = 0;
> +}
> +
> +probe process("../../criu").function("__parasite_execute_daemon")
> +{
> +	printf("%s\n", $$parms);
> +
> +	if (i++ > 3) {
> +		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", $return);
> +	if ($return)
> +		$return = 0;
> +	else {
> +		printf("criu exited with zero code\n");
> +		$return = 1;
> +	}
> +}
>