Date: Thu, 15 May 2008 03:39:35 GMT From: Carlos Santos <unixmania@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: bin/123693: Workaround for burncd: ioctl(CDIOCEJECT): Input/output error Message-ID: <200805150339.m4F3dZ7B077296@www.freebsd.org> Resent-Message-ID: <200805150350.m4F3o2Gc095068@freefall.freebsd.org>
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>Number: 123693
>Category: bin
>Synopsis: Workaround for burncd: ioctl(CDIOCEJECT): Input/output error
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu May 15 03:50:02 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Carlos Santos
>Release: 7.0-STABLE
>Organization:
-
>Environment:
FreeBSD casantos 7.0-STABLE FreeBSD 7.0-STABLE #1: Fri Apr 25 03:02:38 BRT 2008 root@casantos:/share/FreeBSD/src/sys/i386/compile/HP_NX6320 i386
>Description:
I get "burncd: ioctl(CDIOCEJECT): Input/output error" each time I attempt to blank a CDRW with
burncd -f /dev/acd0 blank eject
I noticed that this does not happen when I write a data cd with
burncd -f /dev/acd0 data cd-image.iso fixate eject
I have seen the same bahavior on 4 different computers that have DVD-RW units. It seems that it is necessary to give some time to the writer in order to let it stabilize before attempting to eject the disk.
>How-To-Repeat:
Run "burncd -f /dev/acd0 blank eject" on a Compaq nx6320 notebook with FreeBSD 7.0-STABLE installed. I have seen the same problem on 6.x releases.
>Fix:
Applying the attached patch to /usr/src/usr.sbin/burncd/burncd.c solves the problem. It makes burncd attempt to eject the CD five times, sleeping for one second after each unccessful try.
Patch attached with submission follows:
--- burncd.c.orig 2005-05-13 17:06:44.000000000 -0300
+++ burncd.c 2008-05-12 01:44:30.000000000 -0300
@@ -46,6 +46,7 @@
#include <arpa/inet.h>
#define BLOCKS 16
+#define EJECT_TRIES 5
struct track_info {
int file;
@@ -316,9 +317,13 @@
err(EX_IOERR, "ioctl(CDRIOCSETBLOCKSIZE)");
}
- if (eject)
- if (ioctl(fd, CDIOCEJECT) < 0)
+ if (eject) {
+ int status, i = 0;
+ while ((status = ioctl(fd, CDIOCEJECT)) < 0 && ++i <= EJECT_TRIES)
+ sleep(1);
+ if (status < 0)
err(EX_IOERR, "ioctl(CDIOCEJECT)");
+ }
close(fd);
exit(EX_OK);
}
>Release-Note:
>Audit-Trail:
>Unformatted:
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