Listen on a consol

Listen on a consol

[Chuck Hast]

Folks,
I use the listen command at times remotely. When I run it as a terminal
window, I notice that I can no longer page back and look at what has
scrolled off of the screen. I am trying to figure out what I have missed,
but so far am hitting zero.

-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."

Re: Listen on a consol

[bud Thompson]

----- Original Message ----- 
From: "Chuck Hast" <wchast@gmail.com>
To: "linux-hams" <linux-hams@vger.kernel.org>
Sent: Saturday, June 03, 2006 15:48
Subject: Listen on a consol


> Folks,
> I use the listen command at times remotely. When I run it as a terminal
> window, I notice that I can no longer page back and look at what has
> scrolled off of the screen. I am trying to figure out what I have missed,
> but so far am hitting zero.
>
> -- 
> Chuck Hast  -- KP4DJT --

* * *
Chuck - I use the following from putty after logging into the Orlando Linux 
FPAC with user/password and the moving to Super User / password and cd to 
the ax25 subdirectory:

root@Orlando:/etc/ax25# listen -artc

That gets me the listen screen and a scroll-back on the right side.

However - I cannot change the size/aspect ratio of that screen once active - 
it drops the putty link if I mess with that.

Once listen -artc is running, I start a 2nd Putty session the same way and 
then:

root@Orlando:/etc/ax25# fpacnode

so i can play as a user!

73,
bud N0IA

Re: Listen on a consol

[Chuck Hast]

On 6/3/06, bud Thompson <budt@cfl.rr.com> wrote:
>
> ----- Original Message -----
> From: "Chuck Hast" <wchast@gmail.com>
> To: "linux-hams" <linux-hams@vger.kernel.org>
> Sent: Saturday, June 03, 2006 15:48
> Subject: Listen on a consol
>
>
> > Folks,
> > I use the listen command at times remotely. When I run it as a terminal
> > window, I notice that I can no longer page back and look at what has
> > scrolled off of the screen. I am trying to figure out what I have missed,
> > but so far am hitting zero.
> >
> > --
> > Chuck Hast  -- KP4DJT --
>
> * * *
> Chuck - I use the following from putty after logging into the Orlando Linux
> FPAC with user/password and the moving to Super User / password and cd to
> the ax25 subdirectory:
>
> root@Orlando:/etc/ax25# listen -artc
>
> That gets me the listen screen and a scroll-back on the right side.
>
> However - I cannot change the size/aspect ratio of that screen once active -
> it drops the putty link if I mess with that.
>
> Once listen -artc is running, I start a 2nd Putty session the same way and
> then:
>
> root@Orlando:/etc/ax25# fpacnode
>
> so i can play as a user!

That is what I am doing, but when I run listen in a consol session on a
linux machine it appears to change the terminal setup and no longer
allow me to view the history of incoming data, this is a listen vs terminal
issue, probably something that I need to set somewhere in the terminal
or the listen attributes. As soon as I start the listen session my history
slider goes away, so it is some interaction with the two apps.

-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."

Re: Listen on a consol

[Bob Nielsen]

On Jun 3, 2006, at 2:44 PM, Chuck Hast wrote:

> On 6/3/06, bud Thompson <budt@cfl.rr.com> wrote:
>>
>> ----- Original Message -----
>> From: "Chuck Hast" <wchast@gmail.com>
>> To: "linux-hams" <linux-hams@vger.kernel.org>
>> Sent: Saturday, June 03, 2006 15:48
>> Subject: Listen on a consol
>>
>>
>> > Folks,
>> > I use the listen command at times remotely. When I run it as a  
>> terminal
>> > window, I notice that I can no longer page back and look at what  
>> has
>> > scrolled off of the screen. I am trying to figure out what I  
>> have missed,
>> > but so far am hitting zero.
>> >
>> > --
>> > Chuck Hast  -- KP4DJT --
>>
>> * * *
>> Chuck - I use the following from putty after logging into the  
>> Orlando Linux
>> FPAC with user/password and the moving to Super User / password  
>> and cd to
>> the ax25 subdirectory:
>>
>> root@Orlando:/etc/ax25# listen -artc
>>
>> That gets me the listen screen and a scroll-back on the right side.
>>
>> However - I cannot change the size/aspect ratio of that screen  
>> once active -
>> it drops the putty link if I mess with that.
>>
>> Once listen -artc is running, I start a 2nd Putty session the same  
>> way and
>> then:
>>
>> root@Orlando:/etc/ax25# fpacnode
>>
>> so i can play as a user!
>
> That is what I am doing, but when I run listen in a consol session  
> on a
> linux machine it appears to change the terminal setup and no longer
> allow me to view the history of incoming data, this is a listen vs  
> terminal
> issue, probably something that I need to set somewhere in the terminal
> or the listen attributes. As soon as I start the listen session my  
> history
> slider goes away, so it is some interaction with the two apps.

Trying listen via a ssh connection from my Mac Mini, it appears that  
if I don't use the 'c' parameter (which invokes ncurses) it will  
scroll back properly, but if 'c' invoked, the whole screen scrolls  
out of the window.  The slider is there in either case.

Bob, N7XY

Re: Listen on a consol

[Jim Bayer]

Or your terminal type is set to linux.  Try "echo $TERM" at a shell
prompt.  If it is not vt100, try "export TERM=vt100".  I assume you
are using bash or ksh.  Otherwise use "setenv term vt100" for csh.

That may be all you need.  Also, sometimes it works if you hit the
scroll lock, make sure the scroll lock light is lit, and then hit page
up.  If that fails, make sure to hit scroll lock again to get your
terminal back to normal scroll (unlocked) mode.

Jim, KC9AOP


On 6/3/06, Bob Nielsen <nielsen@oz.net> wrote:
>
> On Jun 3, 2006, at 2:44 PM, Chuck Hast wrote:
>
> > On 6/3/06, bud Thompson <budt@cfl.rr.com> wrote:
> >>
> >> ----- Original Message -----
> >> From: "Chuck Hast" <wchast@gmail.com>
> >> To: "linux-hams" <linux-hams@vger.kernel.org>
> >> Sent: Saturday, June 03, 2006 15:48
> >> Subject: Listen on a consol
> >>
> >>
> >> > Folks,
> >> > I use the listen command at times remotely. When I run it as a
> >> terminal
> >> > window, I notice that I can no longer page back and look at what
> >> has
> >> > scrolled off of the screen. I am trying to figure out what I
> >> have missed,
> >> > but so far am hitting zero.
> >> >
> >> > --
> >> > Chuck Hast  -- KP4DJT --
> >>
> >> * * *
> >> Chuck - I use the following from putty after logging into the
> >> Orlando Linux
> >> FPAC with user/password and the moving to Super User / password
> >> and cd to
> >> the ax25 subdirectory:
> >>
> >> root@Orlando:/etc/ax25# listen -artc
> >>
> >> That gets me the listen screen and a scroll-back on the right side.
> >>
> >> However - I cannot change the size/aspect ratio of that screen
> >> once active -
> >> it drops the putty link if I mess with that.
> >>
> >> Once listen -artc is running, I start a 2nd Putty session the same
> >> way and
> >> then:
> >>
> >> root@Orlando:/etc/ax25# fpacnode
> >>
> >> so i can play as a user!
> >
> > That is what I am doing, but when I run listen in a consol session
> > on a
> > linux machine it appears to change the terminal setup and no longer
> > allow me to view the history of incoming data, this is a listen vs
> > terminal
> > issue, probably something that I need to set somewhere in the terminal
> > or the listen attributes. As soon as I start the listen session my
> > history
> > slider goes away, so it is some interaction with the two apps.
>
> Trying listen via a ssh connection from my Mac Mini, it appears that
> if I don't use the 'c' parameter (which invokes ncurses) it will
> scroll back properly, but if 'c' invoked, the whole screen scrolls
> out of the window.  The slider is there in either case.
>
> Bob, N7XY
>
>
>
> -
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>

Re: Listen on a consol

[Ralf Baechle DL5RB]

On Sat, Jun 03, 2006 at 03:48:42PM -0400, Chuck Hast wrote:

> Folks,
> I use the listen command at times remotely. When I run it as a terminal
> window, I notice that I can no longer page back and look at what has
> scrolled off of the screen. I am trying to figure out what I have missed,
> but so far am hitting zero.

I suggest you run it in screen, which will give you scrollback even if the
OS doesn't such as in case of the limited scrollback abilities of the
Linux console.

  Ralf

spinlock in kernel 2.6.17.1

[Bernard Pidoux]

Hi Ralf,

I installed linux kernel 2.6.17.1 on my ROSE-FPAC switch box and get 
systematically spinlocks within a few minutes, that did not came out 
with previous 2.6.16.18 and your patched applied.

After enabling compilation of sysrq for spinlocks and allowing sysrq 
options (see linux/Documentation/sysrq.txt) I found that rose module was 
involved.

Here is a summary of the screen dump obtained using console level 5 and 
't' key action :

            softlockup_tick
            update_process_times
            timer_interrupt
            handle_IRQ_event
            __do_IRQ
            do_IRQ
            common_interrupt
            delay_tsc
            delay_tsc
            _raw_spin_lock
            _spin_lock_bh
<c8a25646> rose_get_neigh   +0x16 /0xa0  [rose]
<c8a25c2c> rose_route_frame +0x41c/0x580 [rose]
<c89d3bfe> ax25_check_iframes_acked +0x5e/0x70 [ax25]
<c89d55e1> ax25_std_frame_in +0x741/0x7e0 [ax25]
            ax25_find_cb
            ax25_kiss_rcv
            autoremove_wake_function

Since spinlock address is always lock: c8a2b3a4
I guess that the problem is in rose_route_frame ?

What other report can I provide in order to help ?

73 de Bernard, f6bvp

http://f6bvp.org
http://rose.fpac.free.fr/MINI-HOWTO/
http://rose.fpac.free.fr/MINI-HOWTO-FR/

spinlock in ROSE module with kernel 2.6.17

[Bernard Pidoux]

Hi Ralf,

I amnot sure this message go through, so I send it again.

I installed linux kernel 2.6.17.1 (now -3) on my ROSE-FPAC switch box 
and got systematically spinlocks within a few minutes, that did not came 
out with previous 2.6.16.23 and your patched applied.

After enabling compilation of sysrq for spinlocks and allowing sysrq
options (see linux/Documentation/sysrq.txt) I found that rose module was
involved.

Here is a summary of the screen dump obtained using console level 5 and
't' key action :

            softlockup_tick
            update_process_times
            timer_interrupt
            handle_IRQ_event
            __do_IRQ
            do_IRQ
            common_interrupt
            delay_tsc
            delay_tsc
            _raw_spin_lock
            _spin_lock_bh
<c8a25646> rose_get_neigh   +0x16 /0xa0  [rose]
<c8a25c2c> rose_route_frame +0x41c/0x580 [rose]
<c89d3bfe> ax25_check_iframes_acked +0x5e/0x70 [ax25]
<c89d55e1> ax25_std_frame_in +0x741/0x7e0 [ax25]
            ax25_find_cb
            ax25_kiss_rcv
            autoremove_wake_function

Since spinlock address is always lock: c8a2b3a4
I guess that the problem is in rose_route_frame ?

EIP is at delay_tsc + 0x16/0x20

What other report can I provide in order to help ?

73 de Bernard, f6bvp

http://f6bvp.org
http://rose.fpac.free.fr/MINI-HOWTO/
http://rose.fpac.free.fr/MINI-HOWTO-FR/