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From: Roman Gushchin To: Ivan Orlov Cc: hannes@cmpxchg.org, mhocko@kernel.org, shakeelb@google.com, 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 Subject: Re: [PATCH] selftests: cgroup: Add 'malloc' failures checks in test_memcontrol Message-ID: References: <20230226131634.34366-1-ivan.orlov0322@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230226131634.34366-1-ivan.orlov0322@gmail.com> X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Queue-Id: 6693A8001F X-Rspamd-Server: rspam01 X-Stat-Signature: 94q6oqkskbsztu475g7ddata116xkmsk X-HE-Tag: 1677521756-800760 X-HE-Meta: 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 c4ZgzcgB djfuCqRsz1NXr/Ykug/flmTKxFu+nzHk2JewH1uTfdx464eEMJskdAyf/VRDzJbf//Rvxf6Iq2ozFRa7tsxgj/g/0XoFUlW052e0l7itr0bsphXB/Ds52Y3tUCSjaURqP6MVXwbBvbxzAarVniA9cc2dJR2YA3am44f07Q9q1fJ+jSN5+qKR7yIg88287vtrhtCdsifI9zJ1Rc+2cOexLs/aDSxDFpXfdoJdeH0aeLHtpQcv4ScT2wAPNkA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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: Roman Gushchin Thanks!