From mboxrd@z Thu Jan  1 00:00:00 1970
From: "V.A." <miles123@gmx.de>
Date: Mon, 14 Feb 2005 14:51:34 +0000
Subject: Problem CompactFlash Card via PCMCIA Adapter
Message-Id: <4210BAF6.1000904@gmx.de>
List-Id: <linux-hotplug.vger.kernel.org>
MIME-Version: 1.0
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To: linux-hotplug@vger.kernel.org

Hello,

following Problem:
Whenever I insert a CompactFlash Card/Microdrive/SD Card
via an PCMCIA Card Adapter the system becomes very slow.
(I have tryed several PCMCIA Adapters and Card Types)

There is permanent logging in the /var/log/messages that looks
like follows:
.
.
.
Jan 20 10:51:48 DE111 /etc/dev.d/block/50-hwscan.dev[1087]: new block
device /block/hde
Jan 20 10:51:48 DE111 /etc/dev.d/block/51-subfs.dev[1099]: mount block
device /block/hde/hde1
Jan 20 10:51:48 DE111 /etc/dev.d/block/51-subfs.dev[1109]: mount block
device /block/hde
Jan 20 10:51:49 DE111 /etc/dev.d/block/51-subfs.dev[1194]: umount block
device /block/hde/hde1
.
.
.
Mounting the device manually fails, with the error message that
/dev/hde1 does not exists.

I am using SuSE 9.2 with 2.6.8-24.11-default kernel. I also tryed a vanilla
kernel from kernel.org (2.6.10) but it did not solve the problem.
udev version is udev-030-9

After some experiments I could  change this behaviour by
out-commenting
BUS="ide", PROGRAM="/sbin/udev.get_persistent_device_name.sh", NAME="%k" 
SYMLINK="%c{1+}"
in /etc/udev/rules.d/50-udev.rules. After that at least /dev/hde1 does 
not dissapear and there
aren't anymore errors logged in /var/log/messages. The device can be 
easily mounted manually.

The second alternative is by changing the /etc/dev.d/block/51-subfs.dev.
BUS="ide", PROGRAM="/sbin/udev.get_persistent_device_name.sh", NAME="%k" 
SYMLINK="%c{1+}"
has to be active (not out-commentet) in /etc/udev/rules.d/50-udev.rules
In /etc/sysconfig/hotplug
HOTPLUG_DO_MOUNT="yes"
and
HOTPLUG_MOUNT_TYPE="fstab"
(with other values it won't work)

I have put following block in the 51-subfs.dev

if [ -n "$dname" -a -z "$do_mount" ]; then
  pt_name=${DEVNAME##*/}
  path_name=$dname/block/$pt_name
  if [ -d $path_name ]; then
     do_mount=whynot
  fi
fi

before the final case
.
.
case $ACTION in
  add)
  mesg "mount block device $DEVPATH"
.
.

and after the block responsible for the USB devices.

Now the Flashcard get's also automatically mounted.

I consider both approaches as being a workaround.

What's here the problem ? I mean the CF Cards when used as with
PCMCIA adapter are handled as IDE devices, but somehow there
seems to be a problem with those. The same devices used
via an USB Card Reader work without any problem.

Thanky ou in advance!
Best Regards,
Vlad


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