Date: Fri, 1 Oct 1999 16:16:33 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: Peter Wemm <peter@netplex.com.au> Cc: phk@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: BEWARE: CAM changes broke AHC! Message-ID: <Pine.BSF.4.10.9910011615021.50024-100000@beppo.feral.com> In-Reply-To: <19991001220348.A90A71CA7@overcee.netplex.com.au>
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While I don't dispute that the change rolling/rollout fixed what you see, I'd have to say that if they're related there are *far* more serious problems in there. > (da0:ahc0:0:0:0) data overrun detected in Data-In phase. Tag = 0x8 > (da0:ahc0:0:0:0) Have seen Data Phase. Length = 0, NumSGs = 1 > > Backing out the following sys/cam/scsi change set: > > revision 1.39 > date: 1999/10/01 09:34:09; author: phk; state: Exp; lines: +47 -117 > Introduce the disk mini-layer and devstat_end_transaction_buf() in cam/scsi. > > ..and the other files touched at the same time revived it and made the > system bootable again. > > I am particularly suspicious about this: > > @@ -284,26 +283,14 @@ > return (error); /* error code from tsleep */ > } > > - if ((softc->flags & DA_FLAG_OPEN) == 0) { > - if (cam_periph_acquire(periph) != CAM_REQ_CMP) > - return(ENXIO); > - softc->flags |= DA_FLAG_OPEN; > - } > + if (cam_periph_acquire(periph) != CAM_REQ_CMP) > + return(ENXIO); > + softc->flags |= DA_FLAG_OPEN; > > At first glance, it would appear it's re-inquiring on each open instead of > the first open, including while it's mounted. I wasn't sure, so rather than > risk disks, I backed the lot out and it worked again. > > Cheers, > -Peter > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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