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Mon, 27 Feb 2023 09:00:03 -0800 (PST) Date: Mon, 27 Feb 2023 17:00:01 +0000 In-Reply-To: <20230226131634.34366-1-ivan.orlov0322@gmail.com> Mime-Version: 1.0 References: <20230226131634.34366-1-ivan.orlov0322@gmail.com> Message-ID: <20230227170001.ka5eyfscvdypc2oc@google.com> Subject: Re: [PATCH] selftests: cgroup: Add 'malloc' failures checks in test_memcontrol From: Shakeel Butt To: Ivan Orlov Cc: hannes@cmpxchg.org, mhocko@kernel.org, roman.gushchin@linux.dev, muchun.song@linux.dev, tj@kernel.org, lizefan.x@bytedance.com, shuah@kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org Content-Type: text/plain; charset="us-ascii" X-Rspamd-Queue-Id: 401961A001B X-Stat-Signature: f73xcjrp53fa35wh9bwrtri68fbhxcmh X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1677517205-374798 X-HE-Meta: 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 RJP/WilI 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.019042, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sun, Feb 26, 2023 at 04:16:33PM +0300, Ivan Orlov wrote: > There are several 'malloc' calls in test_memcontrol, which can be > unsuccessful. This patch will add 'malloc' failures checking to > give more details about test's fail reasons and avoid possible > undefined behavior during the future null dereference (like the > one in alloc_anon_50M_check_swap function). > > Signed-off-by: Ivan Orlov Acked-by: Shakeel Butt