Hello, list,
I have a little problem, with netconsole.
It does not work for me.
On the "client":
modprobe netconsole netconsole=@/,[email protected]/
dmesg:
netconsole: local port 6665
netconsole: interface eth0
netconsole: remote port 514
netconsole: remote IP 192.168.2.100
netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
netconsole: local IP 192.168.2.50
netconsole: network logging started
(kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
On the server:
]# netcat -u -l -v -s 192.168.2.100 -p 514
192.168.2.100: inverse host lookup failed: Unknown host
listening on [192.168.2.100] 514 ...
And nothing comes.
The firewall is off on both system.
The ping comes from any direction.
If i try the remote and local syslog, it works well, two.
And in this case, the netlog only displays what the syslog is sends.
What can be the problem?
Thanks,
Janos
On Fri, Feb 10, 2006 at 03:23:23PM +0100, JaniD++ wrote:
> Hello, list,
>
> I have a little problem, with netconsole.
> It does not work for me.
>
> On the "client":
>
> modprobe netconsole netconsole=@/,[email protected]/
> dmesg:
> netconsole: local port 6665
> netconsole: interface eth0
> netconsole: remote port 514
> netconsole: remote IP 192.168.2.100
> netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
> netconsole: local IP 192.168.2.50
> netconsole: network logging started
>
> (kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
>
> On the server:
> ]# netcat -u -l -v -s 192.168.2.100 -p 514
> 192.168.2.100: inverse host lookup failed: Unknown host
> listening on [192.168.2.100] 514 ...
>
> And nothing comes.
>
> The firewall is off on both system.
> The ping comes from any direction.
>
> If i try the remote and local syslog, it works well, two.
> And in this case, the netlog only displays what the syslog is sends.
>
> What can be the problem?
Perhaps your console log level is set too low. Fedora for instance is
very quiet by default.
--
Mathematics is the supreme nostalgia of our time.
----- Original Message -----
From: "Matt Mackall" <[email protected]>
To: "JaniD++" <[email protected]>
Cc: <[email protected]>
Sent: Sunday, February 12, 2006 6:46 PM
Subject: Re: netconsole problem
> On Fri, Feb 10, 2006 at 03:23:23PM +0100, JaniD++ wrote:
> > Hello, list,
> >
> > I have a little problem, with netconsole.
> > It does not work for me.
> >
> > On the "client":
> >
> > modprobe netconsole netconsole=@/,[email protected]/
> > dmesg:
> > netconsole: local port 6665
> > netconsole: interface eth0
> > netconsole: remote port 514
> > netconsole: remote IP 192.168.2.100
> > netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
> > netconsole: local IP 192.168.2.50
> > netconsole: network logging started
> >
> > (kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
> >
> > On the server:
> > ]# netcat -u -l -v -s 192.168.2.100 -p 514
> > 192.168.2.100: inverse host lookup failed: Unknown host
> > listening on [192.168.2.100] 514 ...
> >
> > And nothing comes.
> >
> > The firewall is off on both system.
> > The ping comes from any direction.
> >
> > If i try the remote and local syslog, it works well, two.
> > And in this case, the netlog only displays what the syslog is sends.
> >
> > What can be the problem?
>
> Perhaps your console log level is set too low. Fedora for instance is
> very quiet by default.
Sorry, i was not clear enough....
The system, what i want to debug is RedHat 9.0, with kernel 2.6.15, 2.6.16-*
The syslog server is Fedora, and the syslog to syslog messages is works, but
netconsole to syslog (and netconsole to netcat) is the problem, including
the init-message!
At this time i try to receive with another redhat 9, but it looks like the
netconsole did not working properly for me. :(
Thanks,
Janos
>
> --
> Mathematics is the supreme nostalgia of our time.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
On Sun, Feb 12, 2006 at 11:45:52PM +0100, JaniD++ wrote:
> > On Fri, Feb 10, 2006 at 03:23:23PM +0100, JaniD++ wrote:
> > > Hello, list,
> > >
> > > I have a little problem, with netconsole.
> > > It does not work for me.
> > >
> > > On the "client":
> > >
> > > modprobe netconsole netconsole=@/,[email protected]/
> > > dmesg:
> > > netconsole: local port 6665
> > > netconsole: interface eth0
> > > netconsole: remote port 514
> > > netconsole: remote IP 192.168.2.100
> > > netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
> > > netconsole: local IP 192.168.2.50
> > > netconsole: network logging started
> > >
> > > (kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
> > >
> > > On the server:
> > > ]# netcat -u -l -v -s 192.168.2.100 -p 514
> > > 192.168.2.100: inverse host lookup failed: Unknown host
> > > listening on [192.168.2.100] 514 ...
> > >
> > > And nothing comes.
> > >
> > > The firewall is off on both system.
> > > The ping comes from any direction.
> > >
> > > If i try the remote and local syslog, it works well, two.
> > > And in this case, the netlog only displays what the syslog is sends.
> > >
> > > What can be the problem?
> >
> > Perhaps your console log level is set too low. Fedora for instance is
> > very quiet by default.
>
> Sorry, i was not clear enough....
> The system, what i want to debug is RedHat 9.0, with kernel 2.6.15, 2.6.16-*
> The syslog server is Fedora, and the syslog to syslog messages is works, but
> netconsole to syslog (and netconsole to netcat) is the problem, including
> the init-message!
>
> At this time i try to receive with another redhat 9, but it looks like the
> netconsole did not working properly for me. :(
Netconsole logging level is based off the _console log level_, which
defaults to quiet on recent Redhat releases. If it doesn't show up on
the console, netconsole doesn't see it either.
--
Mathematics is the supreme nostalgia of our time.
----- Original Message -----
From: "Matt Mackall" <[email protected]>
To: "JaniD++" <[email protected]>
Cc: <[email protected]>
Sent: Sunday, February 12, 2006 11:43 PM
Subject: Re: netconsole problem
> On Sun, Feb 12, 2006 at 11:45:52PM +0100, JaniD++ wrote:
> > > On Fri, Feb 10, 2006 at 03:23:23PM +0100, JaniD++ wrote:
> > > > Hello, list,
> > > >
> > > > I have a little problem, with netconsole.
> > > > It does not work for me.
> > > >
> > > > On the "client":
> > > >
> > > > modprobe netconsole netconsole=@/,[email protected]/
> > > > dmesg:
> > > > netconsole: local port 6665
> > > > netconsole: interface eth0
> > > > netconsole: remote port 514
> > > > netconsole: remote IP 192.168.2.100
> > > > netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
> > > > netconsole: local IP 192.168.2.50
> > > > netconsole: network logging started
> > > >
> > > > (kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
> > > >
> > > > On the server:
> > > > ]# netcat -u -l -v -s 192.168.2.100 -p 514
> > > > 192.168.2.100: inverse host lookup failed: Unknown host
> > > > listening on [192.168.2.100] 514 ...
> > > >
> > > > And nothing comes.
> > > >
> > > > The firewall is off on both system.
> > > > The ping comes from any direction.
> > > >
> > > > If i try the remote and local syslog, it works well, two.
> > > > And in this case, the netlog only displays what the syslog is sends.
> > > >
> > > > What can be the problem?
> > >
> > > Perhaps your console log level is set too low. Fedora for instance is
> > > very quiet by default.
> >
> > Sorry, i was not clear enough....
> > The system, what i want to debug is RedHat 9.0, with kernel 2.6.15,
2.6.16-*
> > The syslog server is Fedora, and the syslog to syslog messages is works,
but
> > netconsole to syslog (and netconsole to netcat) is the problem,
including
> > the init-message!
> >
> > At this time i try to receive with another redhat 9, but it looks like
the
> > netconsole did not working properly for me. :(
>
> Netconsole logging level is based off the _console log level_, which
> defaults to quiet on recent Redhat releases. If it doesn't show up on
> the console, netconsole doesn't see it either.
The netconsole had worked for me some months ago, but i have made some
changes on the system... (some software, more hardware)
OK, i will see it.
Where can i get/set this loglevel?
Thanks,
Janos
>
> --
> Mathematics is the supreme nostalgia of our time.
On Mon, 13 Feb 2006 00:42:00 +0100 JaniD++ wrote:
>
> ----- Original Message -----
> From: "Matt Mackall" <[email protected]>
> To: "JaniD++" <[email protected]>
> Cc: <[email protected]>
> Sent: Sunday, February 12, 2006 11:43 PM
> Subject: Re: netconsole problem
>
>
> > On Sun, Feb 12, 2006 at 11:45:52PM +0100, JaniD++ wrote:
> > > > On Fri, Feb 10, 2006 at 03:23:23PM +0100, JaniD++ wrote:
> > > > > Hello, list,
> > > > >
> > > > > I have a little problem, with netconsole.
> > > > > It does not work for me.
> > > > >
> > > > > On the "client":
> > > > >
> > > > > modprobe netconsole netconsole=@/,[email protected]/
> > > > > dmesg:
> > > > > netconsole: local port 6665
> > > > > netconsole: interface eth0
> > > > > netconsole: remote port 514
> > > > > netconsole: remote IP 192.168.2.100
> > > > > netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
> > > > > netconsole: local IP 192.168.2.50
> > > > > netconsole: network logging started
> > > > >
> > > > > (kernel: 2.6.15-rc5, and 2.6.16-rc1,2)
> > > > >
> > > > > On the server:
> > > > > ]# netcat -u -l -v -s 192.168.2.100 -p 514
> > > > > 192.168.2.100: inverse host lookup failed: Unknown host
> > > > > listening on [192.168.2.100] 514 ...
> > > > >
> > > > > And nothing comes.
> > > > >
> > > > > The firewall is off on both system.
> > > > > The ping comes from any direction.
> > > > >
> > > > > If i try the remote and local syslog, it works well, two.
> > > > > And in this case, the netlog only displays what the syslog is sends.
> > > > >
> > > > > What can be the problem?
> > > >
> > > > Perhaps your console log level is set too low. Fedora for instance is
> > > > very quiet by default.
> > >
> > > Sorry, i was not clear enough....
> > > The system, what i want to debug is RedHat 9.0, with kernel 2.6.15,
> 2.6.16-*
> > > The syslog server is Fedora, and the syslog to syslog messages is works,
> but
> > > netconsole to syslog (and netconsole to netcat) is the problem,
> including
> > > the init-message!
> > >
> > > At this time i try to receive with another redhat 9, but it looks like
> the
> > > netconsole did not working properly for me. :(
> >
> > Netconsole logging level is based off the _console log level_, which
> > defaults to quiet on recent Redhat releases. If it doesn't show up on
> > the console, netconsole doesn't see it either.
>
> The netconsole had worked for me some months ago, but i have made some
> changes on the system... (some software, more hardware)
> OK, i will see it.
> Where can i get/set this loglevel?
via Magic Sysrq + number (e.g., alt-sysrq-9)
or via (as root) "echo 9 > /proc/sysrq-trigger"
or via (as root) "echo 9 4 1 7 > /proc/sys/kernel/printk"
(first "cat /proc/sys/kernel/printk" and increase the first value).
For the first one, you need a kernel that has
CONFIG_MAGIC_SYSRQ=y
and also has /proc/sys/kernel/sysrq = 1
(echo 1 > /proc/sys/kernel/sysrq # to enable it)
---
~Randy