On 9/6/07, Bill Nottingham <[email protected]> wrote:
> Jan Engelhardt ([email protected]) said:
> > >dear all,
> > >I'm trying to track down a problem on a Sun V40Z server with 4 network
> > >devices grabbing random ethX device names. now, trying to force the
> > >device names to what I want, I got a __tmpXXXXX form of device name,
> > >which I think is a half-configured device... but which piece of
> > >software is to blame ??? kernel, udev, hotplug
> >
> > Look into dmesg. If the device was once known as ethX or similar,
> > then it is userspace to blame.
>
> It's userspace.
while we are at it.... could you briefly help me describe the 'code
sequence' involved in the naming of an interface ? with it we could
write a small doc...
for instance I'm tracking tg3.c code as:
alloc_etherdev()
--> sets net_device->name="eth%d"
register_netdev()
--> register_netdevice()
--> netdev_register_sysfs(struct net_device *net)
struct device *dev = &(net->dev)
dev->class = &net_class
--> device_add(dev)
here I stopped... but I guess that device_add builds and event for udev.
anyway, on my system it produces such a sysfs device:
$> udevinfo -p /sys/class/net/__tmp1930643048 -a
looking at device '/class/net/__tmp1930643048':
KERNEL=="__tmp1930643048"
SUBSYSTEM=="net"
SYSFS{weight}=="64"
SYSFS{tx_queue_len}=="1000"
SYSFS{flags}=="0x1002"
SYSFS{mtu}=="1500"
SYSFS{operstate}=="down"
SYSFS{broadcast}=="ff:ff:ff:ff:ff:ff"
SYSFS{address}=="00:04:23:ca:bc:cb"
SYSFS{link_mode}=="0"
SYSFS{type}=="1"
SYSFS{features}=="0x113a9"
SYSFS{ifindex}=="5"
SYSFS{iflink}=="5"
SYSFS{addr_len}=="6"
> <off-topic for l-k, but while I'm here...>
>
> I'm assuming you're running some sort of Fedora/RHEL/
> derivative; this is what you get when you have a device that starts
> out named ethX, but which needed to be renamed so that an already
> configured ethX could be changed to that name.
yes, it's FC6.
> For the new device, either add a HWADDR in a ifcfg-ethX file for
> that interface, add something to /etc/mactab, or add a udev rule.
seems like HWADDR is incompatible with bonding.... there is some
message using HWADDR as well as MASTER=bond0 and SLAVE=yes.
davide
--
[email protected] ICQ:290677265 SKYPE:d.rossetti
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
