Re:

Re:

[Chuck Gelm]

Dear Sir or Madam:

IMHO,
 It is inappropriate to post questions about development
kernels to a 'newbie' list.

HTH, Chuck

Eng Se-Hsieng wrote:
> 
> Dear all,
> 
> Is iproute2 necessary for IPv6 to work properly on 2.5.59 kernel?
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(unknown)

[heisspf]

--------
Hi,
Resent-Date: Thu, 5 Feb 2004 15:11:34 +0800
Resent-From: Peter <heisspf@skyinet.net>
Subject: Bad Sound in Slackware
Resent-Message-Id: <20040205151134.416d3286@skyinet.net>
Resent-To: linux-newbie@vger.kernel.org

In Slackware 9.1 I have a very annoying distorted sound which I am unable to 
correct.

My RH9.0 and SW9.1 have the same kernel and the same settings in sound. Both 
have the same /etc/module.conf.

SW lsmod gives:

Module                  Size  Used by    Not tainted
snd-pcm-oss            37252   0  (unused)
snd-mixer-oss          11992   0  [snd-pcm-oss]
uhci                   24496   0  (unused)
ehci-hcd               16872   0  (unused)
usbcore                58400   1  [uhci ehci-hcd]
snd-via82xx            11712   0 
snd-pcm                55904   0  [snd-pcm-oss snd-via82xx]
snd-timer              13252   0  [snd-pcm]
snd-ac97-codec         37240   0  [snd-via82xx]
snd-page-alloc          6004   0  [snd-via82xx snd-pcm]
snd-mpu401-uart         3136   0  [snd-via82xx]
snd-rawmidi            12512   0  [snd-mpu401-uart]
snd-seq-device          3920   0  [snd-rawmidi]
snd                    27460   0  [snd-pcm-oss snd-mixer-oss snd-via82xx 
snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
soundcore               3332   4  [snd]
pcmcia_core            40032   0 
ide-scsi                9424   0 
agpgart                39576   0  (unused)

RH lsmod gives:

Module                  Size  Used by    Not tainted
via82cxxx_audio        22136   0 (autoclean)
ac97_codec             15464   0 (autoclean) [via82cxxx_audio]
soundcore               5604   2 (autoclean) [via82cxxx_audio]
parport_pc             17732   1 (autoclean)
lp                      8128   0 (autoclean)
parport                32064   1 (autoclean) [parport_pc lp]
apm                    12264   2
irlan                  24276   0 (unused)
irda                  107568   0 [irlan]
ipchains               48784  13
keybdev                 2784   0 (unused)
mousedev                5396   0 (unused)
hid                    23972   0 (unused)
input                   5184   0 [keybdev mousedev hid]
ehci-hcd               19272   0 (unused)
usbcore                71488   1 [hid ehci-hcd]


What could be the reason for the distorted sound in SW and how could it be 
corrected.

Thanks & regards

-- 
Peter




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Re:

[Juan Facundo Suárez]

HI, sorry, but, i see that there are too many difference between both. The first one,
is using alsa drivers for sound, with oss emulation for those applications that
doesn't support alsa. The second one, uses oss (open sound system). I don't know
which the problem is, but, you can start with it
----- Original Message -----
From: <heisspf@skyinet.net>
To: <linux-newbie@vger.kernel.org>
Sent: Thursday, February 05, 2004 4:03 AM


| --------
| Hi,
| Resent-Date: Thu, 5 Feb 2004 15:11:34 +0800
| Resent-From: Peter <heisspf@skyinet.net>
| Subject: Bad Sound in Slackware
| Resent-Message-Id: <20040205151134.416d3286@skyinet.net>
| Resent-To: linux-newbie@vger.kernel.org
|
| In Slackware 9.1 I have a very annoying distorted sound which I am unable to
| correct.
|
| My RH9.0 and SW9.1 have the same kernel and the same settings in sound. Both
| have the same /etc/module.conf.
|
| SW lsmod gives:
|
| Module                  Size  Used by    Not tainted
| snd-pcm-oss            37252   0  (unused)
| snd-mixer-oss          11992   0  [snd-pcm-oss]
| uhci                   24496   0  (unused)
| ehci-hcd               16872   0  (unused)
| usbcore                58400   1  [uhci ehci-hcd]
| snd-via82xx            11712   0
| snd-pcm                55904   0  [snd-pcm-oss snd-via82xx]
| snd-timer              13252   0  [snd-pcm]
| snd-ac97-codec         37240   0  [snd-via82xx]
| snd-page-alloc          6004   0  [snd-via82xx snd-pcm]
| snd-mpu401-uart         3136   0  [snd-via82xx]
| snd-rawmidi            12512   0  [snd-mpu401-uart]
| snd-seq-device          3920   0  [snd-rawmidi]
| snd                    27460   0  [snd-pcm-oss snd-mixer-oss snd-via82xx
| snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
| soundcore               3332   4  [snd]
| pcmcia_core            40032   0
| ide-scsi                9424   0
| agpgart                39576   0  (unused)
|
| RH lsmod gives:
|
| Module                  Size  Used by    Not tainted
| via82cxxx_audio        22136   0 (autoclean)
| ac97_codec             15464   0 (autoclean) [via82cxxx_audio]
| soundcore               5604   2 (autoclean) [via82cxxx_audio]
| parport_pc             17732   1 (autoclean)
| lp                      8128   0 (autoclean)
| parport                32064   1 (autoclean) [parport_pc lp]
| apm                    12264   2
| irlan                  24276   0 (unused)
| irda                  107568   0 [irlan]
| ipchains               48784  13
| keybdev                 2784   0 (unused)
| mousedev                5396   0 (unused)
| hid                    23972   0 (unused)
| input                   5184   0 [keybdev mousedev hid]
| ehci-hcd               19272   0 (unused)
| usbcore                71488   1 [hid ehci-hcd]
|
|
| What could be the reason for the distorted sound in SW and how could it be
| corrected.
|
| Thanks & regards
|
| --
| Peter
|
|
|
|
| -
| To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
| the body of a message to majordomo@vger.kernel.org
| More majordomo info at  http://vger.kernel.org/majordomo-info.html
| Please read the FAQ at http://www.linux-learn.org/faqs
|

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Re:

[joy]

I have encountered people with the same problem. AFAIK, SW9.1 has some 
problems with Alsa being used as the driver( maybe a kernel problem, I 
don't know)
if you are using mpg321 as the player use the option
 mpg321 -o oss
This worked for a friend.
So ,I figure all you have to do is change the ddefault drivers to oss or 
upgrade your kernel
Joy.

>----- Original Message -----
>From: <heisspf@skyinet.net>
>To: <linux-newbie@vger.kernel.org>
>Sent: Thursday, February 05, 2004 4:03 AM
>
>
>| --------
>| Hi,
>| Resent-Date: Thu, 5 Feb 2004 15:11:34 +0800
>| Resent-From: Peter <heisspf@skyinet.net>
>| Subject: Bad Sound in Slackware
>| Resent-Message-Id: <20040205151134.416d3286@skyinet.net>
>| Resent-To: linux-newbie@vger.kernel.org
>|
>| In Slackware 9.1 I have a very annoying distorted sound which I am unable to
>| correct.
>|
>| My RH9.0 and SW9.1 have the same kernel and the same settings in sound. Both
>| have the same /etc/module.conf.
>|
>| SW lsmod gives:
>|
>| Module                  Size  Used by    Not tainted
>| snd-pcm-oss            37252   0  (unused)
>| snd-mixer-oss          11992   0  [snd-pcm-oss]
>| uhci                   24496   0  (unused)
>| ehci-hcd               16872   0  (unused)
>| usbcore                58400   1  [uhci ehci-hcd]
>| snd-via82xx            11712   0
>| snd-pcm                55904   0  [snd-pcm-oss snd-via82xx]
>| snd-timer              13252   0  [snd-pcm]
>| snd-ac97-codec         37240   0  [snd-via82xx]
>| snd-page-alloc          6004   0  [snd-via82xx snd-pcm]
>| snd-mpu401-uart         3136   0  [snd-via82xx]
>| snd-rawmidi            12512   0  [snd-mpu401-uart]
>| snd-seq-device          3920   0  [snd-rawmidi]
>| snd                    27460   0  [snd-pcm-oss snd-mixer-oss snd-via82xx
>| snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
>| soundcore               3332   4  [snd]
>| pcmcia_core            40032   0
>| ide-scsi                9424   0
>| agpgart                39576   0  (unused)
>|
>| RH lsmod gives:
>|
>| Module                  Size  Used by    Not tainted
>| via82cxxx_audio        22136   0 (autoclean)
>| ac97_codec             15464   0 (autoclean) [via82cxxx_audio]
>| soundcore               5604   2 (autoclean) [via82cxxx_audio]
>| parport_pc             17732   1 (autoclean)
>| lp                      8128   0 (autoclean)
>| parport                32064   1 (autoclean) [parport_pc lp]
>| apm                    12264   2
>| irlan                  24276   0 (unused)
>| irda                  107568   0 [irlan]
>| ipchains               48784  13
>| keybdev                 2784   0 (unused)
>| mousedev                5396   0 (unused)
>| hid                    23972   0 (unused)
>| input                   5184   0 [keybdev mousedev hid]
>| ehci-hcd               19272   0 (unused)
>| usbcore                71488   1 [hid ehci-hcd]
>|
>|
>| What could be the reason for the distorted sound in SW and how could it be
>| corrected.
>|
>| Thanks & regards
>|
>| --
>| Peter
>|
>|
>|
>|
>| -
>| To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
>| the body of a message to majordomo@vger.kernel.org
>| More majordomo info at  http://vger.kernel.org/majordomo-info.html
>| Please read the FAQ at http://www.linux-learn.org/faqs
>|
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>Please read the FAQ at http://www.linux-learn.org/faqs
>
>  
>



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Re: sound problem (was: [no subject])

[Ray Olszewski]

First a preliminary suggestion: Please use Subject: lines in your mail to 
this list. Since the lack of a Subject: line is a characteristic of SPAM 
and virus messages, I usually discard unread any such messages ... I only 
read this one because I happened to recognize your e-mail address.

As to your actual problem ... you will have to tell us a bit more.

First, if the two setups -- Slackware and Red Hat -- use the same kernel 
and the same modules.conf, why do they end up loading different modules? 
The init scripts must be doing something quite different.

Second, what kernel is involved? Does your calling them "the same" mean 
just that they have the same number, or that you compiled them with the 
same .config files?

Third, what sound card (or mobo sound) is involved?

Fourth, if I remember my modules names correctly, your Slackware kernel is 
using ALSA sound modules, while your Red Hat kernel is using OSS sound 
modules. This would imply the need to use different apps to adjust the 
sound settings -- ALSA uses amixer or alsamixer; while OSS uses rexima (and 
maybe others) -- so I wonder in what sense the two setups can have "the 
same settings in sound" (and, for that matter, what "in sound" means).

Finally, what use is producing the "very annoying distorted sound" and what 
else can you tell us about its characteristics? (I've had problems here 
with VIA-chip sound under both Linux and Windows -- suggesting a harware 
problem -- but only when using the sound system to record, not for playback.)

At 03:03 PM 2/5/2004 +0800, heisspf@skyinet.net wrote:
>--------
>Hi,
>Resent-Date: Thu, 5 Feb 2004 15:11:34 +0800
>Resent-From: Peter <heisspf@skyinet.net>
>Subject: Bad Sound in Slackware
>Resent-Message-Id: <20040205151134.416d3286@skyinet.net>
>Resent-To: linux-newbie@vger.kernel.org
>
>In Slackware 9.1 I have a very annoying distorted sound which I am unable to
>correct.
>
>My RH9.0 and SW9.1 have the same kernel and the same settings in sound. Both
>have the same /etc/module.conf.
>
>SW lsmod gives:
>
>Module                  Size  Used by    Not tainted
>snd-pcm-oss            37252   0  (unused)
>snd-mixer-oss          11992   0  [snd-pcm-oss]
>uhci                   24496   0  (unused)
>ehci-hcd               16872   0  (unused)
>usbcore                58400   1  [uhci ehci-hcd]
>snd-via82xx            11712   0
>snd-pcm                55904   0  [snd-pcm-oss snd-via82xx]
>snd-timer              13252   0  [snd-pcm]
>snd-ac97-codec         37240   0  [snd-via82xx]
>snd-page-alloc          6004   0  [snd-via82xx snd-pcm]
>snd-mpu401-uart         3136   0  [snd-via82xx]
>snd-rawmidi            12512   0  [snd-mpu401-uart]
>snd-seq-device          3920   0  [snd-rawmidi]
>snd                    27460   0  [snd-pcm-oss snd-mixer-oss snd-via82xx
>snd-pcm snd-timer snd-ac97-codec snd-mpu401-uart snd-rawmidi snd-seq-device]
>soundcore               3332   4  [snd]
>pcmcia_core            40032   0
>ide-scsi                9424   0
>agpgart                39576   0  (unused)
>
>RH lsmod gives:
>
>Module                  Size  Used by    Not tainted
>via82cxxx_audio        22136   0 (autoclean)
>ac97_codec             15464   0 (autoclean) [via82cxxx_audio]
>soundcore               5604   2 (autoclean) [via82cxxx_audio]
>parport_pc             17732   1 (autoclean)
>lp                      8128   0 (autoclean)
>parport                32064   1 (autoclean) [parport_pc lp]
>apm                    12264   2
>irlan                  24276   0 (unused)
>irda                  107568   0 [irlan]
>ipchains               48784  13
>keybdev                 2784   0 (unused)
>mousedev                5396   0 (unused)
>hid                    23972   0 (unused)
>input                   5184   0 [keybdev mousedev hid]
>ehci-hcd               19272   0 (unused)
>usbcore                71488   1 [hid ehci-hcd]
>
>
>What could be the reason for the distorted sound in SW and how could it be
>corrected.





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Re: sound problem (was: [no subject])

[Peter]

Thanks!

ray@comarre.com said:
> First a preliminary suggestion: Please use Subject: lines in your mail
> to  this list. Since the lack of a Subject: line is a characteristic
> of SPAM  and virus messages, I usually discard unread any such
> messages ... I only  read this one because I happened to recognize
> your e-mail address.

Sorry for that. My ISP was down for 2 days. Now that I can connect again I 
have problems sending mail with my mailer exmh, the mail just goes into the 
queue and sits there. I then switch to sylpheed which integrates the exmh 
folders and forward the mail by which process I overlooked that the Subject: 
was left out.

ray@comarre.com said:
> First, if the two setups -- Slackware and Red Hat -- use the same
> kernel  and the same modules.conf, why do they end up loading
> different modules?  The init scripts must be doing something quite
> different.

ray@comarre.com said:
> for that matter, what "in sound" means

/usr/src/linux make xconfig, then klick on sound

Well, when I had installed RH9.0 I could not open siam office which I could 
with SW9.1. So I installed the SW 2.4.22 kernel in RH and siam office opened. 
Having the distorted sound in SW to which distro I am planning to migrate 
eventually I put the same sound settings in SW found in RH using make xconfig 
sound. Then I copied the /etc/modules.conf of RH to SW /etc/. That did not 
change anuthing in SW as for distorted sound.

ray@comarre.com said:
> Third, what sound card (or mobo sound) is involved?

The motherboard is P4VMM2 ,
the chipset P4M266/A Northbridge and VT8235 Southbridge,
Audio - AC'97 Audio Codec on the mobo.
Celeron 4 processor


ray@comarre.com said:
> Finally, what use is producing the "very annoying distorted sound" and
> what  else can you tell us about its characteristics?

All the .wav files I use for sounds such as opening, closing, iconify etc. 
windows.
Playing a video CD is plain impossible whereas playing a music CD has no 
distortion.
The distortion is a continuous scratching and a tapering-off really annoying 
sound.

I went now back into SW9.1 did a make xconfig sound and klicked yes for OSS.
Now the tapering-off sound is gone, however, the annoying scratch persists. It 
is like an electrical static sound only harder on both speakers. I check the 
wires, the plug, changed speakers; they must be all fine since there is now 
such scratch with the RH9.0 sound system.

Hope some solution can be found.

Regards



-- 
Peter

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Re: sound problem (was: [no subject])

[joy]

Peter wrote:

>All the .wav files I use for sounds such as opening, closing, iconify etc. 
>windows.
>Playing a video CD is plain impossible whereas playing a music CD has no 
>distortion.
>The distortion is a continuous scratching and a tapering-off really annoying 
>sound.
>
>I went now back into SW9.1 did a make xconfig sound and klicked yes for OSS.
>Now the tapering-off sound is gone, however, the annoying scratch persists. It 
>is like an electrical static sound only harder on both speakers. I check the 
>wires, the plug, changed speakers; they must be all fine since there is now 
>such scratch with the RH9.0 sound system.
>  
>
Did you disable alsa during xconfig? If  no,  please do so. A person I 
know had the same problem (while playing mp3's, but should apply anyways)
he had to run his music player with the OSS drivers (mpg321 -o oss ) for 
the sound to work fine.

>Hope some solution can be found.
>
>Regards
>
>
>
>  
>



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Re: sound problem (was: [no subject])

[Ray Olszewski]

At 02:59 PM 2/6/2004 +0800, Peter wrote:
[...]
>ray@comarre.com said:
> > for that matter, what "in sound" means
>
>/usr/src/linux make xconfig, then klick on sound

This cannot be a complete description of what you did with respect to the 
info you posted before  ... since the modules lists you showed us indicated 
that Slack was using ALSA sound while RH was using OSS sound ... or if it 
is complete, it hides some omission of consequence.


>Well, when I had installed RH9.0 I could not open siam office which I could
>with SW9.1. So I installed the SW 2.4.22 kernel in RH and siam office opened.
>Having the distorted sound in SW to which distro I am planning to migrate
>eventually I put the same sound settings in SW found in RH using make xconfig
>sound. Then I copied the /etc/modules.conf of RH to SW /etc/. That did not
>change anuthing in SW as for distorted sound.

"put" them where? And what "sound settings" do you mean? Do you mean you 
took the portion of the ./.config file created my "make xconfig" under RH 
into the ./.config file for the Slackware system, then recompiled its 
kernel? If you don't mean that, you need to be explicit about what you did 
... all "make xconfig" affects is the ,/.config file used for kernel 
(including module) conpilation.

After you used make xconfig to tedit ./.config (then recompiled the kernel, 
then installed the new one, of course), did the list of modules installed 
by Slackware (output of lsmod, I mean) change to match the RH list? If not, 
you did something wrong or incomplete here ... your description is too 
abbreviated for me to guess what.

But put all that aside. Your problem in Slackware may simply be that you 
have not used amixer or alsamixer to configure the sound modules correctly. 
Out of the box, they typically accept input from too many sources, which 
can cause the kinds of sound problems you are describing. Run alsamixer and 
make sure that all inputs, except the ones you are actually using -- 
probably either "line" or "PCM" -- are muted. Then see if that eliminates 
your problem.


>ray@comarre.com said:
> > Third, what sound card (or mobo sound) is involved?
>
>The motherboard is P4VMM2 ,
>the chipset P4M266/A Northbridge and VT8235 Southbridge,
>Audio - AC'97 Audio Codec on the mobo.
>Celeron 4 processor
>
>
>ray@comarre.com said:
> > Finally, what use is producing the "very annoying distorted sound" and
> > what  else can you tell us about its characteristics?
>
>All the .wav files I use for sounds such as opening, closing, iconify etc.
>windows.
>Playing a video CD is plain impossible whereas playing a music CD has no
>distortion.
>The distortion is a continuous scratching and a tapering-off really annoying
>sound.
>
>I went now back into SW9.1 did a make xconfig sound and klicked yes for OSS.
>Now the tapering-off sound is gone, however, the annoying scratch 
>persists. It
>is like an electrical static sound only harder on both speakers. I check the
>wires, the plug, changed speakers; they must be all fine since there is now
>such scratch with the RH9.0 sound system.

With this change in procedure, do the same modules now load in Slack as in 
RH? How is this different from what you did the first time (and described 
above as "I put the same sound settings in SW found in RH using make 
xconfig") -- did "klicked yes for OSS" not count as part of "the same" the 
first time around?

Peter -- It's really hard to give you meaningful help when your messages 
contain inconsistencies like that last one ... you really need to provide 
more careful and exact descriptions. I've no doubt your actual problem is 
simple to fix, and it's only this playing of an e-mail analog to blind 
man's bluff that makes it seem hard or obscure.

First time around, it was clear that even if you thought you set the two 
distros up "the same", they were loading different modules. The lsmod 
output you provided before showed that beyond any debate. This time around, 
we again need to know if they are now really both running the OSS modules, 
or if Slack is still trying to use ALSA.

Assuming Slack is still using ALSA, you have two choices --

         1. Recompile the Slack kernel, and modify Slack's init scripts, so 
that Slack uses OSS. For this, you may need help from a Slack user, since 
its init-script system is far more different from all the other main 
distros than any two of them are from eaxh other.

         2. Make ALSA work (probably by using alsamixer, as I said above).

One minor aside ... though we customarily treat all 2.4.22 (for example) 
kernel sources as the same in these discussions, that is not exactly true. 
I know that Debian kernels ship with a set of standard Debian patches that 
make them a bit different from "pure" kernel source obtained from, say, 
kernel.org ... and I *think* the same is true of other big name distros too 
... RH at least, if not also Slack. This probably does not affect today's 
problem, but we should remember that kernel sources from different distros 
are not always exactly the same.



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Re: sound problem (was: [no subject])

[Peter]

Thanks! I made it, I have now normal sound in Slackware 9.1

First I did make modules, then make modules_install after which I had no more 
sound. Doing /sbin/insmod soundcore it spit back no such file. Then I found 
that there is no .../drivers/sound folder. I copied it over from RedHat9. Did 
insmod soundcore, ac97_codec, via82cxxx_audio and all sounded normally. Then I 
put those insmod commands into rc.local. Using modprobe I get error no such 
file soundcore etc.

I do not know if this is a professional solution, but it works.

Now to some of your questions:

In RedHat xconfig Sound has only one setting, sound card support yes. That is 
what I put in Slackware and put 'no' on all the other settings which were 
there. When you mentioned OSS I put that on 'yes' in SW.

ray@comarre.com said:
> Your problem in Slackware may simply be that you have not used amixer
> or alsamixer to configure the sound modules correctly

I tried tried all kinds of different settings on alsamixer before I went on 
the list. According to Richard of pa3gcu my problem is well know of ALSA 
drivers.

ray@comarre.com said:
> though we customarily treat all 2.4.22 (for example)  kernel sources
> as the same in these discussions, that is not exactly true

As I mentioned I took the SW kernel 2.4.22 from the Slackware Installation 
Disk and installed it in RH9 and even in RH7.3. Therefore, I assume that they 
are the same.

In RH7.3 I had the kernel 2.4.18-7 and could open siag office. When I 
installed RH9.0 with kernel 2.4.18-9 siag office would not open; don't ask me 
why and by now I forgot the error message. Since siag office opens in SW9.1 
with kernel 2.4.22 I put that kernel into RH9.0 and siag office runs again.

Thanks to your help and patience I am almost ready to fully switch to SW9.1. 
Sorry for my sometimes not too professional descriptions of facts.

Regards

-- 
Peter

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Re:

[Peter Teoh]

On Mon, May 19, 2008 at 6:57 PM, Alexei Babich <a.babich@rez.ru> wrote:
> Hi all,
> How I can disable printk() output bufferization ? I need that printk() prints symbol-by-symbol or line-by-line.
>

Check this out - since it has similar embedded requirements like yours
(what is a chematic engineer?):

http://tree.celinuxforum.org/pipermail/celinux-dev/2006-July/001261.html

Read the comments part of kernel/printk.c - printk() is an amazing
function, because it can be called in ANY CONTEXT.....which also means
that it cannot sleep.   But since u know many I/O function involved
some form of waiting, therefore printk() necessarily HAVE TO WRITE TO
A BUFFER, and it only write to the screen/console whenever it is
allowed to sleep (which involved holding a  console semaphore).

In short, printk() sometimes will output to screen directly, esp when
u are not in the interrupt context.   Otherwise it may just buffer for
later delivery.

> Thank you.
> --
> Regards,
> Alexei Babich, chematic engineer, OOO NPP "Rezonans", Chelyabinsk, Russia
> http://www.rez.ru
> Jabber ID: impatt@jabber.ru
> --


-- 
Regards,
Peter Teoh
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Re:

[Alexei Babich]

> Check this out - since it has similar embedded requirements like yours
> (what is a chematic engineer?):
I ment circuit, not schematic, and that's a misprint in addition :)

> http://tree.celinuxforum.org/pipermail/celinux-dev/2006-July/001261.html
Thank you for link.

> 
> Read the comments part of kernel/printk.c - printk() is an amazing
> function, because it can be called in ANY CONTEXT.....which also means
> that it cannot sleep.   But since u know many I/O function involved
> some form of waiting, therefore printk() necessarily HAVE TO WRITE TO
> A BUFFER,
OK, I need decrease buffer depth.
Thank you.

-- 
Regards,
Alexei Babich, circuit engineer, OOO NPP "Rezonans", Chelyabinsk, Russia
http://www.rez.ru
Jabber ID: impatt@jabber.ru
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