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Wizumwalt
Guru
Joined: 20 Aug 2006
Posts: 547
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 Posted: Thu Jun 02, 2011 1:53 am Post subject: netconsole, not receiving msgs |
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Can anyone help out w/ this netconsole configuration. I have a guest OS in a vm running and I'm trying to capture log messages to the host OS which is running 'ncat -u -l 6666'. Any help much appreciated.
Here's output from the guest OS booting w/ netconsole.
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[ 6.342326] netconsole: local port 6665
[ 6.342329] netconsole: local IP 192.168.100.21
[ 6.342330] netconsole: interface 'eth0'
[ 6.342332] netconsole: remote port 6666
[ 6.342333] netconsole: remote IP 192.168.1.11
[ 6.342338] netconsole: remote ethernet address 00:1a:4d:59:ef:04
[ 6.342353] netconsole: device eth0 not up yet, forcing it
[ 6.342834] 8021q: adding VLAN 0 to HW filter on device eth0
[ 6.342844] netconsole: carrier detect appears untrustworthy, waiting 4 seconds
[ 10.343272] console [netcon0] enabled
[ 10.343274] netconsole: network logging started
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Here's /etc/conf.d/modules from the guest OS.
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modules_2_6="netconsole"
module_netconsole_args_2_6="netconsole=6665@192.168.100.21/eth0,6666@192.168.1.11/00:1a:4d:59:ef:04"
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This is setup on the host OS.
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$ ifconfig
br0 Link encap:Ethernet HWaddr 22:f0:ff:cf:f8:57
inet addr:192.168.100.254 Bcast:192.168.100.255 Mask:255.255.255.0
inet6 addr: fe80::85:e3ff:fe6e:b735/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:23305 errors:0 dropped:0 overruns:0 frame:0
TX packets:28180 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:17759789 (16.9 MiB) TX bytes:14595253 (13.9 MiB)
eth0 Link encap:Ethernet HWaddr 00:1a:4d:59:ef:04
inet addr:192.168.1.11 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21a:4dff:fe59:ef04/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:62580 errors:0 dropped:0 overruns:0 frame:0
TX packets:66503 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:30026119 (28.6 MiB) TX bytes:7462282 (7.1 MiB)
Interrupt:40 Base address:0xc000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
qtap0 Link encap:Ethernet HWaddr 5a:34:8b:1e:d0:4b
inet6 addr: fe80::5834:8bff:fe1e:d04b/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:479 errors:0 dropped:0 overruns:0 frame:0
TX packets:7777 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:46178 (45.0 KiB) TX bytes:620723 (606.1 KiB)
qtap1 Link encap:Ethernet HWaddr 22:f0:ff:cf:f8:57
inet6 addr: fe80::20f0:ffff:fecf:f857/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets
:24222 errors:0 dropped:0 overruns:0 frame:0
TX packets:30861 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:18217655 (17.3 MiB) TX bytes:14822118 (14.1 MiB)
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23087
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| Posted: Thu Jun 02, 2011 10:37 pm Post subject: |
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| Do you need to do this over netconsole or is the requirement only that you capture guest output to storage on the host? If the latter, you might have more luck directing the guest to use a serial console and having the hypervisor redirect the serial console to a file. |
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