Date: Thu, 07 Apr 2011 10:19:48 -0700 From: Matthew Jacob <mj@feral.com> To: freebsd-scsi@freebsd.org Subject: Re: retry mounting with ro when rw fails Message-ID: <4D9DF234.2070803@feral.com> In-Reply-To: <4D9DEDF7.2070107@FreeBSD.org> References: <4D9DEDF7.2070107@FreeBSD.org>
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> The first part is in CAM/SCSI to make sure that ENODEV is consistently returned to > signal that an operation is not supported by a device (in accordance to intro(2)) > and specifically to return ENODEV on write attempt to a read-only or > write-protected media. Making this change in SCSI should cover real SCSI devices, > as well as ATAPI through ahci/siis/atapicam or similar, plus majority (all?) of > USB Mass Storage devices. This may be the right thing to do (which is debatable) but I can tell you here and now this will break a lot of commercial usages of FreeBSD with SANS which depend (foolishly) on existing error codes.
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