Debian Bug report logs - #274456
alsa-utils: please make alsactl store/restore more devfs-friendly

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Message #5 received at [email protected] (full text, mbox, reply):

From: Ryan Underwood <[email protected]>

To: Debian Bug Tracking System <[email protected]>

Subject: alsa-utils: please make alsactl store/restore more devfs-friendly

Date: Fri, 01 Oct 2004 16:55:28 -0500

Package: alsa-utils
Version: 1.0.4-1
Severity: minor


alsactl restore takes a long time on a slow devfs machine.  The problem
is the following:
open("/dev/snd/controlC1", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/dev/aloadC1", O_RDONLY)          = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC2", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/dev/aloadC2", O_RDONLY)          = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC3", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/dev/aloadC3", O_RDONLY)          = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC4", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/dev/aloadC4", O_RDONLY)          = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC5", O_RDONLY)    = -1 ENOENT (No such file or directory)
open("/dev/aloadC5", O_RDONLY)          = -1 ENOENT (No such file or directory)
open("/dev/snd/controlC6", O_RDONLY)    = -1 ENOENT (No such file or directory)
.....

Each of these attempts causes about a 1 second delay on my machine
(P120).  I presume this is due to devfs trying to modprobe stuff in the
background.

A more efficient method would probably be to opendir() and scan through
the directory entries to check for existence.


-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 2.4.25
Locale: LANG=en_US, LC_CTYPE=en_US

Versions of packages alsa-utils depends on:
ii  alsa-base                1.0.4-3         ALSA sound driver common files
ii  dialog                   0.9b-20040421-1 Displays user-friendly dialog boxe
ii  libasound2               1.0.5-1         Advanced Linux Sound Architecture 
ii  libc6                    2.3.2.ds1-12    GNU C Library: Shared libraries an
ii  libncurses5              5.4-4           Shared libraries for terminal hand
ii  module-init-tools        3.0-pre10-4     tools for managing Linux kernel mo
ii  modutils                 2.4.26-1        Linux module utilities
ii  pciutils                 1:2.1.11-8      Linux PCI Utilities (for 2.*.* ker
ii  whiptail                 0.51.6-3        Displays user-friendly dialog boxe

-- no debconf information

Message #8 received at [email protected] (full text, mbox, reply):

From: Thomas Hood <[email protected]>

To: [email protected]

Subject: Re: [Pkg-alsa-devel] Bug#274456: alsa-utils: please make alsactl store/restore more devfs-friendly

Date: Sat, 02 Oct 2004 10:10:11 +0200

On Fri, 2004-10-01 at 23:55, Ryan Underwood wrote:
> alsactl restore takes a long time on a slow devfs machine.


As devfs is obsolete I don't expect that this will be fixed.

-- 
Thomas Hood <[email protected]>

Message #13 received at [email protected] (full text, mbox, reply):

From: Ryan Underwood <[email protected]>

To: Thomas Hood <[email protected]>, [email protected]

Subject: Re: Bug#274456: [Pkg-alsa-devel] Bug#274456: alsa-utils: please make alsactl store/restore more devfs-friendly

Date: Sat, 2 Oct 2004 13:27:34 -0500

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

On Sat, Oct 02, 2004 at 10:10:11AM +0200, Thomas Hood wrote:
> On Fri, 2004-10-01 at 23:55, Ryan Underwood wrote:
> > alsactl restore takes a long time on a slow devfs machine.
> 
> 
> As devfs is obsolete I don't expect that this will be fixed.

Well, the 2.4 kernel is not obsolete yet, and its dynamic device
filesystem is devfs until someone ports udev.  Would the similar problem
occur with udev on a slow machine?  I'm not familiar with its operation.

-- 
Ryan Underwood, <[email protected]>

[signature.asc (application/pgp-signature, inline)]

Message #22 received at [email protected] (full text, mbox, reply):

From: Thomas Hood <[email protected]>

To: [email protected]

Subject: closing

Date: Tue, 05 Jul 2005 17:08:23 +0200

devfs is starting to be rather ancient history now.

-- 
Thomas Hood

Message #33 received at [email protected] (full text, mbox, reply):

From: "Andreas Schulz Ltd" <[email protected]>

To: "274456" <[email protected]>

Subject: Stellenbeschreibungen zur Durchsicht

Date: ---, 25 May 2014 21:39:38 GMT

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