Date: Fri, 6 Dec 2002 11:23:56 -0800 (PST) From: Nate Lawson <nate@root.org> To: Yar Tikhiy <yar@freebsd.org> Cc: freebsd-scsi@freebsd.org Subject: Re: {da,sa,...}open bug? Message-ID: <Pine.BSF.4.21.0212061121290.15885-100000@root.org> In-Reply-To: <20021206145942.I80257@comp.chem.msu.su>
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On Fri, 6 Dec 2002, Yar Tikhiy wrote: > Yet another daopen() issue came to my attention. The DA_OPEN_FLAG bit > won't be reset back to 0 if daopen() has failed, thus leaving the device > marked as open. Isn't the below patch necessary? > > The rest of scsi_* modules seem to not have this bug. > > -- > Yar > > Index: scsi_da.c > =================================================================== > RCS file: /home/ncvs/src/sys/cam/scsi/scsi_da.c,v > retrieving revision 1.116 > diff -u -r1.116 scsi_da.c > --- scsi_da.c 29 Nov 2002 15:40:10 -0000 1.116 > +++ scsi_da.c 6 Dec 2002 11:49:57 -0000 > @@ -612,6 +612,7 @@ > if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) > daprevent(periph, PR_PREVENT); > } else { > + softc->flags &= ~DA_FLAG_OPEN; > cam_periph_release(periph); > } > cam_periph_unlock(periph); You are correct. Ok to commit this w/ re@ approval The other periphs don't use this flag. There is another important fix that should be made that exists in several other drivers as well: --- scsi_da.c.orig Fri Dec 6 11:07:33 2002 +++ scsi_da.c Fri Dec 6 11:10:44 2002 @@ -545,8 +545,10 @@ if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) return (error); /* error code from tsleep */ - if (cam_periph_acquire(periph) != CAM_REQ_CMP) + if (cam_periph_acquire(periph) != CAM_REQ_CMP) { + cam_periph_unlock(periph); return(ENXIO); + } softc->flags |= DA_FLAG_OPEN; if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { i.e. unlock if locked on return. Can you put together a patch for all of these? Thanks, -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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