Re: Possible udev bug and some questions

[Kay Sievers <kay.sievers@vrfy.org>]

On Thu, Dec 25, 2003 at 10:35:37PM +0200, Martin Schlemmer wrote:
> On Thu, 2003-12-25 at 22:00, Kay Sievers wrote:
> > On Thu, Dec 25, 2003 at 09:52:53PM +0200, Martin Schlemmer wrote:
> > > > here is a patch for the script and a small fix for namedev to work with...
> > > > 
> > > 
> > > BTW, there is a slight issue with your version of the script - it drops
> > > the /dev/discs/part* symlinks.  Patch against your version attached.
> > 
> > Are you sure devfs does partitions in there?
> > It only lists the discs on my machine:
> > 
> >   kay@pim:~/src/udev.kay$ tree /devfs/discs/
> >   /devfs/discs/
> >   |-- disc0 -> ../ide/host0/bus0/target0/lun0
> >   |-- disc1 -> ../ide/host0/bus0/target1/lun0
> >   `-- disc2 -> ../ide/host2/bus0/target0/lun0
> > 
> 
> Well, seems like you modified some other things to the script as
> well.  Here is a 2.4 box (and we have been using /dev/discs/*/disc
> to call hdparm for ages on 2.4 boxes):
> 
> --
> $ ls -l /dev/discs/disc0/
> total 0
> brw-------    1 root     root       3,   0 Jan  1  1970 disc
> brw-------    1 root     root       3,   1 Jan  1  1970 part1
> brw-------    1 root     root       3,   2 Jan  1  1970 part2
> brw-------    1 root     root       3,   3 Jan  1  1970 part3
> azarah@gateway azarah $ uname -a
> Linux gateway.lan 2.4.17 #2 Wed Aug 20 22:32:11 SAST 2003 i686 Pentium
> III (Katmai) GenuineIntel GNU/Linux
> azarah@gateway azarah $


What the hell is this?
Is it something in your devfs.conf, that creates this?
On 2.4.20 I get:

  puk:~# tree /devfs/discs/
  /devfs/discs/
  `-- disc0 -> ../ide/host0/bus0/target0/lun0



> Patch is attached to fix the other issue.  It is a new version of
> previous patch.  Also note that /proc/ide/*/media contain 'disk'
> for hdd's, so the call to get_dev_number() should have 'disk'
> as second argument, and not 'disc' ...

Yes, it should be 'disk' - i'm confused now :)

If you call get_dev_number() with hda1 it will newer break at the current device,
cause there is is no hda1 in the iterated list. So it's ever the last dis[ck]

pim:/home/kay# ls -la /proc/ide/*/media
-r--r--r--    1 root     root            0 Dec 25 21:54 /proc/ide/hda/media
-r--r--r--    1 root     root            0 Dec 25 21:54 /proc/ide/hdb/media
-r--r--r--    1 root     root            0 Dec 25 21:54 /proc/ide/hdc/media
-r--r--r--    1 root     root            0 Dec 25 21:54 /proc/ide/hde/media


thanks,
Kay


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