Date: Tue, 3 Oct 2000 02:30:09 -0700 (PDT) From: razuwaev@relex.ru To: freebsd-gnats-submit@FreeBSD.org Subject: kern/21723: sa device driver bug Message-ID: <20001003093009.CEF7637B503@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
>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:
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20001003093009.CEF7637B503>