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Sun, 15 Jun 2025 23:38:35 -0700 (PDT) MIME-Version: 1.0 References: <20250501163827.2598-1-ujwal.kundur@gmail.com> <20250531074625.478-1-ujwal.kundur@gmail.com> In-Reply-To: From: Ujwal Kundur Date: Mon, 16 Jun 2025 12:08:24 +0530 X-Gm-Features: AX0GCFt56CmERt6ve4-ANd9_KWfMkOS73gp_KuYLfTvWYMofoQ8g_CgjlTWpnow Message-ID: Subject: Re: [PATCH v4 1/1] selftests/mm/uffd: Refactor non-composite global vars into struct To: Brendan Jackman Cc: akpm@linux-foundation.org, peterx@redhat.com, shuah@kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 1D4FF1C000A X-Stat-Signature: 8hage9u6o5zaz85fz8b8mrax9653rxo8 X-Rspam-User: X-HE-Tag: 1750055916-348832 X-HE-Meta: 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 k9gXbSQq aHuJNEIDoK5wBR9Q= 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: List-Subscribe: List-Unsubscribe: > And I hit this: > > # ------------------------- > # running ./uffd-unit-tests > # ------------------------- > # Testing UFFDIO_API (with syscall)... done > # Testing UFFDIO_API (with /dev/userfaultfd)... done > # Testing register-ioctls on anon... ERROR: munmap (errno=22, @uffd-common.c:277) > # done > # [FAIL] > not ok 6 uffd-unit-tests # exit=1 > > It reproduced on a second run but I haven't dug any further at all. I haven't been able to reproduce this -- both with and without my patch on mm-new and mainline; I see why you've commented out uffd-tests in your test script :) I ran into this *once* earlier when liburing wasn't installed, perhaps that could be related? Will send a v5 soon retaining the test_uffdio_copy_eexist variable as suggested. Thanks, Ujwal