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Message-ID: <1549640986.34241.78.camel@acm.org>
Subject: Re: dd hangs when reading large partitions
From:   Bart Van Assche <bvanassche@acm.org>
To:     Marc Gonzalez <marc.w.gonzalez@free.fr>,
        linux-mm <linux-mm@kvack.org>,
        linux-block <linux-block@vger.kernel.org>
Cc:     Jianchao Wang <jianchao.w.wang@oracle.com>,
        Christoph Hellwig <hch@infradead.org>,
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        fsdevel <linux-fsdevel@vger.kernel.org>,
        SCSI <linux-scsi@vger.kernel.org>,
        Joao Pinto <jpinto@synopsys.com>,
        Jeffrey Hugo <jhugo@codeaurora.org>,
        Evan Green <evgreen@chromium.org>,
        Matthias Kaehlcke <mka@chromium.org>,
        Douglas Anderson <dianders@chromium.org>,
        Stephen Boyd <swboyd@chromium.org>,
        Tomas Winkler <tomas.winkler@intel.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Alim Akhtar <alim.akhtar@samsung.com>,
        Avri Altman <avri.altman@wdc.com>,
        Bart Van Assche <bart.vanassche@wdc.com>,
        Martin Petersen <martin.petersen@oracle.com>,
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        Ming Lei <ming.lei@redhat.com>, Omar Sandoval <osandov@fb.com>,
        Roman Gushchin <guro@fb.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.com>
Date:   Fri, 08 Feb 2019 07:49:46 -0800
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On Fri, 2019-02-08 at 16:33 +-0100, Marc Gonzalez wrote:
+AD4 Does anyone see what's going sideways in the no-flag case?

Hi Marc,

Does this problem only occur with block devices backed by the UFS driver
or does this problem also occur with other block drivers?

Thanks,

Bart.