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[2003:ef:2f4f:c900:9ff2:6ae1:d404:2002]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43b644bf1c5sm39775394f8f.14.2026.03.24.02.08.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2026 02:08:14 -0700 (PDT) Message-ID: <69c2547e.df0a0220.3512dd.98fb@mx.google.com> To: "Petr Vorel" In-Reply-To: <20260324082047.GA36627@pevik> Date: Tue, 24 Mar 2026 09:08:12 +0000 X-Virus-Scanned: clamav-milter 1.0.9 at in-4.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH] dio_read: fix infinite loop when readsize >= filesize X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Andrea Cervesato via ltp Reply-To: Andrea Cervesato Cc: Linux Test Project MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi Petr, > As a fix for indefinite loop LGTM. But why it happen readsize >= filesize? These > are related to -r and -s values, but we always use -r 512k -w 512k -s 32M. > I wonder why this happen only on s390x? (I'd expect ppc64le which has different > page size. > > Also that means that pread() is skipped when this happen. I was trying to fix this sporadic failure on s390x and I discovered this bug in the test so I send a patch. As you said, the DOR000 might still fail. What happens at the moment is that children seem to stuck. This fix should reduce the amount of messages and debug it a bit better. Let's see.. -- Andrea Cervesato SUSE QE Automation Engineer Linux andrea.cervesato@suse.com -- Mailing list info: https://lists.linux.it/listinfo/ltp