Date: Tue, 3 Oct 2000 08:10:03 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/21723: sa device driver bug Message-ID: <200010031510.IAA30841@freefall.freebsd.org>
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The following reply was made to PR kern/21723; it has been noted by GNATS.
From: Matthew Jacob <mjacob@feral.com>
To: razuwaev@relex.ru
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: kern/21723: sa device driver bug
Date: Tue, 3 Oct 2000 08:08:01 -0700 (PDT)
Good spotting, thanks...
On Tue, 3 Oct 2000 razuwaev@relex.ru wrote:
>
> >Number: 21723
> >Category: kern
> >Synopsis: sa device driver bug
> >Confidential: no
> >Severity: non-critical
> >Priority: low
> >Responsible: freebsd-bugs
> >State: open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class: sw-bug
> >Submitter-Id: current-users
> >Arrival-Date: Tue Oct 03 02:40:00 PDT 2000
> >Closed-Date:
> >Last-Modified:
> >Originator: Andrew
> >Release: 4.1-STABLE
> >Organization:
> Relex, Ltd.
> >Environment:
> FreeBSD p227.relex.ru 4.1-STABLE
> FreeBSD 4.1-STABLE #12: Mon Sep 25 15:50:49 MSD 2000
> amass@p227.relex.ru:/usr/src/sys/compile/KERNEL-A i386
> >Description:
> f=open("/dev/nrsa0",O_RDWR);
> write(f, buf, size);
> ioctl(fd, MTIOCRDSPOS, &offs);
> This sequence hangs up the task on waiting disk operation.
> Driver waits for awake on sys/cam/cam_periph.c : cam_periph_getccb() on
> tsleep(&periph->ccb_list, PRIBIO, "cgticb", 0);
>
> >How-To-Repeat:
> f=open("/dev/nrsa0",O_RDWR);
> write(f, buf, size);
> ioctl(fd, MTIOCRDSPOS, &offs);
>
> >Fix:
> This problem is fixed by replace :
> ccb = cam_periph_getccb(periph, 1);
> if (softc->flags & SA_FLAG_TAPE_WRITTEN) {
> error = sawritefilemarks(periph, 0, 0);
> if (error && error != EACCES)
> return (error);
> }
> to :
> if (softc->flags & SA_FLAG_TAPE_WRITTEN) {
> error = sawritefilemarks(periph, 0, 0);
> if (error && error != EACCES)
> return (error);
> }
> ccb = cam_periph_getccb(periph, 1);
>
>
>
> >Release-Note:
> >Audit-Trail:
> >Unformatted:
>
>
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