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From: Petr Vorel <pvorel@suse.cz>
To: chunfuwen <chwen@redhat.com>
Cc: "Ricardo B. Marlière" <rbm@suse.com>, ltp@lists.linux.it
Subject: Re: [LTP] [PATCH v2] Add test case to cover the setting resource limit64 for process
Date: Wed, 19 Feb 2025 17:50:06 +0100	[thread overview]
Message-ID: <20250219165006.GC2590174@pevik> (raw)
In-Reply-To: <20250219064804.1313358-1-chwen@redhat.com>

Hi 
> +	if (!pid) {
> +		TEST(setrlimit_u64(RLIMIT_CPU, rlim));
> +		if (TST_RET == -1) {
> +			tst_res(TFAIL | TTERRNO,
> +				"setrlimit_u64(RLIMIT_CPU) failed");
> +			exit(1);
> +		}
> +
> +		alarm(20);
> +
> +		while (1)

FYI we have TST_CHECKPOINT_WAKE() and others, please see
"1.9 Fork() and Parent-child synchronization" in doc/old/C-Test-API.asciidoc
or online
https://github.com/linux-test-project/ltp/blob/master/doc/old/C-Test-API.asciidoc#19-fork-and-parent-child-synchronization

(still not yet converted docs to sphinx)

Also worth to read if you have time (because people would put at least some usleep() instead of plain while(1);
https://people.kernel.org/metan/why-sleep-is-almost-never-acceptable-in-tests

Kind regards,
Petr

> +			;
> +	}
> +

-- 
Mailing list info: https://lists.linux.it/listinfo/ltp

      parent reply	other threads:[~2025-02-19 16:50 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-18  2:31 [LTP] [PATCH] Add test case to cover the setting resource limit64 for process chunfuwen
2025-02-18 11:44 ` Ricardo B. Marlière
2025-02-18 13:29   ` Andrea Cervesato via ltp
2025-02-19  2:35     ` Chunfu Wen
2025-02-19  9:29       ` Andrea Cervesato via ltp
2025-02-19  6:47     ` [LTP] [PATCH v2] " chunfuwen
2025-02-19 16:44       ` Petr Vorel
2025-02-20  2:08         ` Li Wang
2025-02-20  9:35           ` Petr Vorel
2025-02-20  8:01         ` Chunfu Wen
2025-02-20  8:35         ` [LTP] [PATCH v3] " Chunfu Wen
2025-02-21 10:34           ` Andrea Cervesato via ltp
2025-02-24  3:06             ` Chunfu Wen
2025-02-24  3:07             ` [LTP] [PATCH v4] " Chunfu Wen
2025-02-26  1:15               ` Chunfu Wen
2025-02-28  3:41                 ` Li Wang
2025-02-28  7:45                   ` Andrea Cervesato via ltp
2025-02-28  8:39                     ` Li Wang
2025-02-28  9:22                       ` Li Wang
2025-02-28 11:37                         ` Petr Vorel
2025-02-26  9:21               ` Li Wang
2025-02-19 16:50       ` Petr Vorel [this message]

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