* linux-next 20110831 - netconsole startup issue
@ 2011-09-01 15:14 Valdis.Kletnieks
2011-09-02 5:54 ` Américo Wang
0 siblings, 1 reply; 2+ messages in thread
From: Valdis.Kletnieks @ 2011-09-01 15:14 UTC (permalink / raw)
To: David S. Miller; +Cc: netdev, linux-kernel
Chasing a kernel panic in linux-next, and hit an unrelated issue
starting up netconsole that's bogging me down.
On linux-next-20110823, I had this:
[ 7.078099] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k
[ 7.078102] e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
[ 7.078158] e1000e 0000:00:19.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[ 7.078171] e1000e 0000:00:19.0: setting latency timer to 64
[ 7.078354] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 7.269439] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:21:70:de:b6:fd
[ 7.269443] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[ 7.269469] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 4003FF-0FF
[ 7.293569] netconsole: network logging started
Bring up the ethernet, then the console. Works great,
However, on -20110831, I get this:
[ 0.983149] netconsole: local port 9909
[ 0.983254] netconsole: local IP 128.173.14.107
[ 0.983358] netconsole: interface 'eth0'
[ 0.983461] netconsole: remote port 9909
[ 0.983564] netconsole: remote IP 128.173.14.108
[ 0.983668] netconsole: remote ethernet address 00:14:22:5a:79:d3
[ 0.983776] netconsole: eth0 doesn't exist, aborting.
[ 0.983897] netconsole: cleaning up
[ 1.176429] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:21:70:de:b6:fd
[ 1.176557] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[ 1.176688] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 4003FF-0FF
Whoops. No netconsole.
Even more annoying (and quite possibly related), the kernel is built with
CONFIG_NETCONSOLE_DYNAMIC. On -20110823, I have a /sys/kernel/config/netconsole
directory and can use it to configure netconsole on the fly. However, on
-20110831, /sys/kernel/config is empty - no netconsole subdirectory. So I
couldn't even boot to single-user, configure netconsole, and then continue to
multiuser and capture the crash.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: linux-next 20110831 - netconsole startup issue
2011-09-01 15:14 linux-next 20110831 - netconsole startup issue Valdis.Kletnieks
@ 2011-09-02 5:54 ` Américo Wang
0 siblings, 0 replies; 2+ messages in thread
From: Américo Wang @ 2011-09-02 5:54 UTC (permalink / raw)
To: Valdis.Kletnieks; +Cc: David S. Miller, netdev, linux-kernel
On Thu, Sep 1, 2011 at 11:14 PM, <Valdis.Kletnieks@vt.edu> wrote:
> Chasing a kernel panic in linux-next, and hit an unrelated issue
> starting up netconsole that's bogging me down.
>
> On linux-next-20110823, I had this:
>
> [ 7.078099] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k
> [ 7.078102] e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
> [ 7.078158] e1000e 0000:00:19.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> [ 7.078171] e1000e 0000:00:19.0: setting latency timer to 64
> [ 7.078354] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
> [ 7.269439] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:21:70:de:b6:fd
> [ 7.269443] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
> [ 7.269469] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 4003FF-0FF
> [ 7.293569] netconsole: network logging started
>
> Bring up the ethernet, then the console. Works great,
>
> However, on -20110831, I get this:
>
> [ 0.983149] netconsole: local port 9909
> [ 0.983254] netconsole: local IP 128.173.14.107
> [ 0.983358] netconsole: interface 'eth0'
> [ 0.983461] netconsole: remote port 9909
> [ 0.983564] netconsole: remote IP 128.173.14.108
> [ 0.983668] netconsole: remote ethernet address 00:14:22:5a:79:d3
> [ 0.983776] netconsole: eth0 doesn't exist, aborting.
> [ 0.983897] netconsole: cleaning up
> [ 1.176429] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:21:70:de:b6:fd
> [ 1.176557] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
> [ 1.176688] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 4003FF-0FF
>
> Whoops. No netconsole.
This is because your eth0 came up after netconsole, I guess
you need to wait for some seconds to let eth0 come up before
activating netconsole.
But I don't see any changes of netconsole between 20110823
and 20110831...
^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-09-02 5:54 ` Américo Wang
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