Debian Bug report logs - #427572
pciutils: 'pcimodules' shows hyphen where 'lsmod' shows underscore

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: "A. Costa" <agcosta@gis.net>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: pciutils: 'pcimodules' shows hyphen where 'lsmod' shows underscore

Date: Mon, 4 Jun 2007 18:46:39 -0400

Package: pciutils
Version: 1:2.2.4-1
Severity: normal


Apologies in advance -- I doubt this is a 'pciutils' bug, but am not
sure what package it belongs to, and hope that somebody reading this
can figure it out, and reassign it to the correct package, (sorry!), if
necessary.

    # 'intel-agp' with a hyphen
    % locate -r 'intel.agp'
    /lib/modules/2.6.18-4-686/kernel/drivers/char/agp/intel-agp.ko
    /lib/modules/2.6.21-1-686/kernel/drivers/char/agp/intel-agp.ko

    # what packages are those in?
    % dlocate agp.ko | egrep 'intel.agp'
    linux-image-2.6.18-4-686: /lib/modules/2.6.18-4-686/kernel/drivers/char/agp/intel-agp.ko
    linux-image-2.6.21-1-686: /lib/modules/2.6.21-1-686/kernel/drivers/char/agp/intel-agp.ko

    # another hyphen
    % pcimodules  | egrep 'intel.agp'
    intel-agp

    # no hyphen?
    % lsmod  | egrep '^intel.agp'
    intel_agp              23004  1 

I don't understand where the underscore (_) on that last line came
from.

Note: I discovered this bug, (if it's a bug), by piping the output of
'pcimodules' into a search routine of installed modules.  My 'grep'
code kept missing 'intel-agp', even though it seemed to be installed
-- then I noticed the underscore.

Hope this helps...



-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.21-1-686 (SMP w/1 CPU core)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/dash

Versions of packages pciutils depends on:
ii  libc6                         2.5-9+b1   GNU C Library: Shared libraries
ii  libpci2                       2:2.1.11-3 Obsolete shared library for access
ii  zlib1g                        1:1.2.3-15 compression library - runtime

pciutils recommends no packages.

-- no debconf information

Message #10 received at 427572-done@bugs.debian.org (full text, mbox, reply):

From: Aníbal Monsalve Salazar <anibal@debian.org>

To: "A. Costa" <agcosta@gis.net>, 427572-done@bugs.debian.org

Subject: Re: [Pkg-pciutils-discuss] Bug#427572: pciutils: 'pcimodules' shows hyphen where 'lsmod' shows underscore

Date: Sat, 26 Apr 2008 15:56:26 +1000

[Message part 1 (text/plain, inline)]

Version: 1:2.2.4-1

If you run "strace pcimodules" you'll see a line similar to:

open("/lib/modules/2.6.18-4-686/modules.pcimap", O_RDONLY) = 3

and on my laptopt, /lib/modules/2.6.18-4-686/modules.pcimap

grep intel-agp /lib/modules/2.6.18-4-686/modules.pcimap
intel-agp            0x00008086 0x00007180 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00007190 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x000071a0 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00007120 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00007122 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00007124 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00001130 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002500 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002501 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00003575 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00001a21 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00001a30 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002560 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002530 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00003340 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00003580 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002531 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002570 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002578 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002550 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x0000255d 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002580 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002590 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x00002770 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0
intel-agp            0x00008086 0x000027a0 0xffffffff 0xffffffff 0x00060000 0xffffffff 0x0

So, for pcimodules, intel-agp comes from /lib/modules/2.6.18-4-686/modules.pcimap
on my laptop.

As for lsmod, I don't know. Sorry.

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Message #15 received at 427572@bugs.debian.org (full text, mbox, reply):

From: "A. Costa" <agcosta@gis.net>

To: 427572@bugs.debian.org

Subject: Re: [Pkg-pciutils-discuss] Bug#427572: pciutils: 'pcimodules' shows hyphen where 'lsmod' shows underscore

Date: Tue, 29 Apr 2008 02:34:09 -0400

On Sat, 26 Apr 2008 15:56:26 +1000
Aníbal Monsalve Salazar <anibal@debian.org> wrote:

> ...So, for pcimodules, intel-agp comes
> from /lib/modules/2.6.18-4-686/modules.pcimap on my laptop.
> 
> As for lsmod, I don't know. Sorry.

After reading your message the other day I discovered:

	% man modprobe | grep -m 1 -n -C 1 _
	21-       modprobe intelligently adds or removes a module from the Linux  kernel:
	22:       note  that  for  convenience, there is no difference between _ and - in
	23-       module  names.   modprobe  looks  in  the  module  directory  /lib/mod-

It's not mentioned in the man pages for 'lsmod' or 'modinfo', yet.

A "convenient" kludge for kernel guys presumably, but it breaks *nix
custom of unique character meanings.  'grep' users take note: you gotta
use a character class (or '.'  and risk a false hit) to parse these
utils outputs now:

	# fails	
	% lsmod  | grep 'via-agp' ; echo $?
	1

	# works
	% lsmod  | grep 'via[_-]agp'
	via_agp                 9952  1 
	agpgart                31688  3 nvidia,drm,via_agp

	# fails
	% pcimodules  | grep 'via_agp' ; echo $?
	1

	# works
	% pcimodules  | grep 'via[_-]agp'
	via-agp

HTH...

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