From: Thomas Heinz <thomasheinz@gmx.net>
To: linux-hotplug@vger.kernel.org
Subject: Re: cdrom_id (udev) causes "No disk in drive" warning for ide devices with removable media
Date: Wed, 14 Sep 2005 22:34:47 +0000 [thread overview]
Message-ID: <200509150034.47906.thomasheinz@gmx.net> (raw)
In-Reply-To: <200509081443.29756.thomasheinz@gmx.net>
Hi Kay
You wrote:
> > Interestingly, I found out that the kernel message is generated on
> > close(fd) (line 151).
>
> Hmm, no idea. I tested it remotely on a few boxes with a SCSI cdrom
> and none of them prints anything on a cdrom_id run.
On close(), scsi_set_medium_removal() is called which again calls
ioctl_internal_command(). The scsi request is initiated here:
http://lxr.linux.no/source/drivers/scsi/scsi_ioctl.c#L109
It "returns" NOT_READY which effectively causes the kernel message.
In order to avoid the message during bootup, I have defined some rules
before the default rule set which mimic the effect of executing cdrom_id
without actually doing it. The execution of the default rule set for the
specific scsi device is avoided by the last_rule option.
Since only one of my scsi cdrom devices behaves like this (and moreover you
could not reproduce the behaviour), it is probably not a general problem.
What do you suggest to further track the problem down?
Regards,
Thomas
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next prev parent reply other threads:[~2005-09-14 22:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-08 12:43 cdrom_id (udev) causes "No disk in drive" warning for ide devices with removable media Thomas Heinz
2005-09-08 14:11 ` Kay Sievers
2005-09-08 15:11 ` Thomas Heinz
2005-09-08 15:38 ` Thomas Heinz
2005-09-08 19:18 ` Kay Sievers
2005-09-08 21:26 ` Thomas Heinz
2005-09-09 11:17 ` Kay Sievers
2005-09-14 22:34 ` Thomas Heinz [this message]
2005-09-14 23:21 ` Kay Sievers
2005-09-15 7:51 ` Thomas Heinz
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