no msg when linux-kernel boot.

no msg when linux-kernel boot.

[louie miranda]

Hi,

I saw this server twice. When she boots, it does not show extra kernel
"echo, requests" (Initializations)

ex:


LILO: linux...
Booting the kernel

and after that it pauses for a little while

and just shows the login prompt


Linux

Login:


---

Any ideas on this is much appreciated..





Thanks,
Louie...

Re: no msg when linux-kernel boot.

[Roy Sigurd Karlsbakk]

you wouødn't have a 'console=ttyS0' line or something in LILO/GRUB, would you?

On Friday 12 July 2002 10:21, louie miranda wrote:
> Hi,
>
> I saw this server twice. When she boots, it does not show extra kernel
> "echo, requests" (Initializations)
>
> ex:
>
>
> LILO: linux...
> Booting the kernel
>
> and after that it pauses for a little while
>
> and just shows the login prompt
>
>
> Linux
>
> Login:
>
>
> ---
>
> Any ideas on this is much appreciated..
>
>
>
>
>
> Thanks,
> Louie...
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" 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.tux.org/lkml/

-- 
Roy Sigurd Karlsbakk, Datavaktmester

Computers are like air conditioners.
They stop working when you open Windows.

Re: Disk IO statistics still buggy

[Andries Brouwer]

On Sat, Jul 06, 2002 at 12:15:47AM -0400, Bill Davidsen wrote:

> > Marcelos' BK repository (that will become 2.4.19-rc2) includes a patch to
> > remove these statistics completely from /proc/partitions...
> 
> Is this the new Linux way of life? Removing modules is hard, GET RID OF
> THE FEATURE! Stats in /proc/partitions are not always correct, GET RID OF
> THE FEATURE!

Shouting and exclamation marks - a bad sign.

You are mistaken. This has never been a feature.
It is not in 2.4.18, and it looks like it will not be in 2.4.19.

It is in some vendor kernels, but it is ugly and causes various problems.
If somebody cares about having statistics she should submit a patch
adding /proc/diskstat.

Andries

Re: Disk IO statistics still buggy

[Thunder from the hill]

Hi,

On Sat, Jul 06, 2002 at 12:15:47AM -0400, Bill Davidsen wrote:
> > Marcelos' BK repository (that will become 2.4.19-rc2) includes a patch to
> > remove these statistics completely from /proc/partitions...
> 
> Is this the new Linux way of life? Removing modules is hard, GET RID OF
> THE FEATURE! Stats in /proc/partitions are not always correct, GET RID OF
> THE FEATURE!

You misunderstood. It was nothing incorrect about the stats in 
/proc/partitions, it was just moved because it just didn't belong into 
/proc/partitions.

							Regards,
							Thunder
-- 
(Use http://www.ebb.org/ungeek if you can't decode)
------BEGIN GEEK CODE BLOCK------
Version: 3.12
GCS/E/G/S/AT d- s++:-- a? C++$ ULAVHI++++$ P++$ L++++(+++++)$ E W-$
N--- o?  K? w-- O- M V$ PS+ PE- Y- PGP+ t+ 5+ X+ R- !tv b++ DI? !D G
e++++ h* r--- y- 
------END GEEK CODE BLOCK------

[PATCH] Re: Disk IO statistics still buggy

[Jochen Suckfuell]

Hi!

On Sat, Jul 06, 2002 at 07:42:42AM -0600, Thunder from the hill wrote:
> On Sat, Jul 06, 2002 at 12:15:47AM -0400, Bill Davidsen wrote:
> > > Marcelos' BK repository (that will become 2.4.19-rc2) includes a patch to
> > > remove these statistics completely from /proc/partitions...
> > 
> > Is this the new Linux way of life? Removing modules is hard, GET RID OF
> > THE FEATURE! Stats in /proc/partitions are not always correct, GET RID OF
> > THE FEATURE!
> 
> You misunderstood. It was nothing incorrect about the stats in 
> /proc/partitions, it was just moved because it just didn't belong into 
> /proc/partitions.

And it hasn't been removed either. Only the output has been removed; the
data is still collected. Meanwhile I found the bug that leads to wrong
ios_in_flight values on SCSI systems:

The accounting was done on a copy of the request _after_ the request has
been dequeued and the irq_request_lock released. I fixed this by taking
this lock again while calling the accounting function (see the patch
below).

** This patch is relevant regardless where the statistics will finally
be printed. **

One issue is still left: on my non-SCSI machine, the ios_in_flight value
is at -1 when although requests are running. It doesn't get any more
wrong than that it seems, and I'm not sure where that happened. Maybe
something went wrong when initializing this value at boot time? I have a
workaround that corrects negative ios_in_flight values to zero each time
/proc/partitions is read. After further testing I will post it to the
list.

Bye
Jochen Suckfüll

-- 
Jochen Suckfuell  ---  http://www.suckfuell.net/jochen/  ---

--- linux/drivers/scsi/scsi_lib.c Mon Jul  8 16:15:27 2002
+++ linux_work/drivers/scsi/scsi_lib.c Tue Jul  9 17:56:39 2002
@@ -426,7 +426,9 @@
   if (req->waiting != NULL) {
    complete(req->waiting);
   }
+  spin_lock_irq(&io_request_lock);
   req_finished_io(req);
+  spin_unlock_irq(&io_request_lock);
   add_blkdev_randomness(MAJOR(req->rq_dev));
 
         SDpnt = SCpnt->device;

Re: [PATCH] Re: Disk IO statistics still buggy

[Jens Axboe]

On Tue, Jul 09 2002, Jochen Suckfuell wrote:
> --- linux/drivers/scsi/scsi_lib.c Mon Jul  8 16:15:27 2002
> +++ linux_work/drivers/scsi/scsi_lib.c Tue Jul  9 17:56:39 2002
> @@ -426,7 +426,9 @@
>    if (req->waiting != NULL) {
>     complete(req->waiting);
>    }
> +  spin_lock_irq(&io_request_lock);
>    req_finished_io(req);
> +  spin_unlock_irq(&io_request_lock);
>    add_blkdev_randomness(MAJOR(req->rq_dev));
>  
>          SDpnt = SCpnt->device;

good spotting, that's definitely a bug

-- 
Jens Axboe

no msg when linux-kernel boot.

[louie miranda]

Hi,

I saw this server twice. When she boots, it does not show extra kernel
"echo, requests" (Initializations)

ex:


LILO: linux...
Booting the kernel

and after that it pauses for a little while

and just shows the login prompt


Linux

Login:


---

Any ideas on this is much appreciated..





Thanks,
Louie...

Re: no msg when linux-kernel boot.

[Tigran Aivazian]

check /proc/cmdline to see if there is a "quiet" option listed there. If
so, edit /etc/lilo.conf and get rid of it from "append=" line and rerun
lilo and reboot.

Regards
Tigran

On Fri, 12 Jul 2002, louie miranda wrote:

> Hi,
>
> I saw this server twice. When she boots, it does not show extra kernel
> "echo, requests" (Initializations)
>
> ex:
>
>
> LILO: linux...
> Booting the kernel
>
> and after that it pauses for a little while
>
> and just shows the login prompt
>
>
> Linux
>
> Login:
>
>
> ---
>
> Any ideas on this is much appreciated..
>
>
>
>
>
> Thanks,
> Louie...
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" 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.tux.org/lkml/
>

Re: no msg when linux-kernel boot.

[szonyi calin]

 --- louie miranda <louie@chikka.com> a écrit : > Hi,
> 
> I saw this server twice. When she boots, it does not
> show extra kernel
> "echo, requests" (Initializations)
> 
> ex:
> 
> 
> LILO: linux...
> Booting the kernel
> 
> and after that it pauses for a little while
> 
> and just shows the login prompt
> 
> 
> Linux
> 
> Login:
> 

He could be ashamed so he hides himself :-)
You can play with linux and make him really quiet :-)
It's actually a feature :-)



=====
--
The UNIX Hierarchy - Beginner
- insecure with the concept of a terminal 
- has yet to learn the basics of "vi" 
- has not figured out how to get a directory 
- still has trouble with typing <RETURN> after each line of input

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