linux-kernel - RE: scsi_set_medium

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Message-ID: <Pine.LNX.4.44L0.1811141027420.1637-100000@iolanthe.rowland.org>
Date:   Wed, 14 Nov 2018 10:35:28 -0500 (EST)
From:   Alan Stern <stern@...land.harvard.edu>
To:     Martin Petersen <martin.petersen@...cle.com>,
        "Zengtao (B)" <prime.zeng@...ilicon.com>
cc:     "jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "usb-storage@...ts.one-eyed-alien.net" 
        <usb-storage@...ts.one-eyed-alien.net>
Subject: RE: scsi_set_medium_removal timeout issue 

On Wed, 14 Nov 2018, Zengtao (B) wrote:

> I just enabled the scsi log in the middle of the umount operation, otherwise I can't
> reproduce the issue when the scsi log is enabled.
> 
> >from the beginning.  In any case, it wasn't what I wanted.  I asked you to
> >post the dmesg log, not the SCSI log.
> 
> Please refer to the new attachment for dmesg log.

Heh, yes, I see now.

Martin, shouldn't sd_release() call sd_sync_cache() in the same way
that sd_shutdown() does, before it calls scsi_set_medium_removal()?

Alan Stern