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[193.40.6.72]) by mx.google.com with ESMTPS id w16si13316933lfl.41.2019.02.19.22.31.08 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 Feb 2019 22:31:08 -0800 (PST) Received-SPF: neutral (google.com: 193.40.6.72 is neither permitted nor denied by best guess record for domain of mroos@linux.ee) client-ip=193.40.6.72; Authentication-Results: mx.google.com; spf=neutral (google.com: 193.40.6.72 is neither permitted nor denied by best guess record for domain of mroos@linux.ee) smtp.mailfrom=mroos@linux.ee Subject: Re: ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28 To: Matthew Wilcox , Jan Kara Cc: "Theodore Y. Ts'o" , linux-alpha@vger.kernel.org, LKML , linux-block@vger.kernel.org, linux-mm@kvack.org References: <1c26eab4-3277-9066-5dce-6734ca9abb96@linux.ee> <076b8b72-fab0-ea98-f32f-f48949585f9d@linux.ee> <20190216174536.GC23000@mit.edu> <20190218120209.GC20919@quack2.suse.cz> <4e015688-8633-d1a0-308b-ba2a78600544@linux.ee> <20190219132026.GA28293@quack2.suse.cz> <20190219144454.GB12668@bombadil.infradead.org> From: Meelis Roos Message-ID: Date: Wed, 20 Feb 2019 08:31:05 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: <20190219144454.GB12668@bombadil.infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: et-EE Content-Transfer-Encoding: 7bit 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: > Could > https://lore.kernel.org/linux-mm/20190219123212.29838-1-larper@axis.com/T/#u > be relevant? Tried it, still broken. I wrote: > But my kernel config had memory compaction (that turned on page migration) and > bounce buffers. I do not remember why I found them necessary but I will try > without them. First, I found out that both the problematic alphas had memory compaction and page migration and bounce buffers turned on, and working alphas had them off. Next, turing off these options makes the problematic alphas work. -- Meelis Roos