Strange UDev Message from Kernel

schivmeister · 2010-01-16 20:35:31

error binding control socket, seems udevd is already running
...
waiting 10s for ...

Doesn't look harmful, as I'm booting fine and within a normal period.

In case anyone knows what this implies, I would like to know since this is, well, new.

mustill · 2010-01-16 21:10:39

Hi,
I'm getting the same message since yesterday. I thought it might have been related to my yesterday's playing around with splashy and it's initscripts-splashy. First I thought it was harmless but my system has been behaving strangely since then - it completely freezes after hitting the Return key, but not every time... :-D Usually it happens while launching commands from terminal, but it happened while composing an email or surfing the web as well. Even though the X screen is still, music keeps playing (audacious doesn't update its window though), so I think there might be some problem with HAL, which stops working and sending input events to X server...

Have you encountered these problems as well?

sneaksie · 2010-01-16 21:12:20

I got the same problem. After an update I got that message and my wlan doesn't start anymore during start-up (set up in rc.conf:

wlan_wlan0="wlan0 essid xxx key xxx"
wlan0="dhcp"

It can start it manually afterwards, though by Terminal

ifconfig wlan0 up
iwconfig wlan0 essid xxx key xxx
dhcpcd wlan0

which is a bit annoying. Perhaps somebody can help. Maybe those two problems are related.

Thanks

R00KIE · 2010-01-16 22:02:51

I have noticed this too.
I was testing a clean install with virtualbox and it can be noticed if you use the 'quiet' option in the kernel line, otherwise it gets lots in all the messages the kernel outputs.

I have also noticed this happening after updating a flash disk I have with arch and issuing 'mkinitcpio -p kernel26'. This message seems to be harmless, everything seems to be working properly.

In virtualbox I'm using arch's network daemon and getting IPs with dhcp and with the flash disk I'm using wicd and network works fine in both cases.

Without the quiet option it goes like this:

:: Loading Initramfs
:: Starting udevd...
done.
:: Running Hook [udev]
:: Loading udev...error binding control socket, seems udevd is already running
SCSI subsystem initialized

tomk · 2010-01-16 22:04:05

schivmeister, R00KIE - since mkinitcpio 0.5.27, udevd is started earlier in the boot process, before any modules are loaded, so that any required firmware is handled correctly. However, the udev hook provided by the klibc-udev package has not been updated to accommodate this, so it also tries to start udevd, resulting in that message. As you suspected, it is harmless.

Feel free to post a bug report against klibc-udev. More info here, and you can inspect /lib/initcpio/init and /lib/initcpio/hooks/udev for the actual code. For a short-term workaround, you can remove the echo and udevd lines from the hook and regenerate your image.

mustill, sneaksie - this is not the cause of your problems. Please start another thread, so that this one stays on-topic.

.:B:. · 2010-01-16 22:04:58

To me it seems harmless, I've had it for a week or so, and my box is still fully functional. Maybe somewhere during startup udev is asked to initialise twice...

sneaksie wrote:

I got the same problem. After an update I got that message and my wlan doesn't start anymore during start-up (set up in rc.conf:
wlan_wlan0="wlan0 essid xxx key xxx"
wlan0="dhcp"
It can start it manually afterwards, though by Terminal
ifconfig wlan0 up
iwconfig wlan0 essid xxx key xxx
dhcpcd wlan0
which is a bit annoying. Perhaps somebody can help. Maybe those two problems are related.
Thanks

Chances are they are not. Open a separate topic please instead of hijacking this one.

Edit: dammit tomk

sneaksie · 2010-01-16 22:59:40

Sorry, thought that might be linked, cause both came up at the same time

schivmeister · 2010-01-16 23:44:31

I suspected something like that, thanks for the fast clarification and workaround!

 /* init control socket, bind() ensures, that only one udevd instance is running */

http://gitorious.org/easyweb2/external- … ev/udevd.c

Last edited by schivmeister (2010-01-16 23:51:16)

jithin1987 · 2010-01-31 02:39:58

Hi,
I have reported a bug here http://bugs.archlinux.org/task/18081?pr … &sort=desc for fixing this.

cecilyen · 2010-02-06 16:51:30

Bump. I just found this error message today and hope it can be fixed.

jac · 2010-02-06 19:00:06

Did you read the bug report on it? It was said that it'll be fixed in the next version of mkinitcpio, and there is a work around for it in this very thread, post 5. You can also vote on the bug tracker so that actual developers know more people are bugged by it, most of the devs don't come here.

Last edited by jac (2010-02-06 19:01:08)

Arch Linux

#1 2010-01-16 20:35:31

Strange UDev Message from Kernel

#2 2010-01-16 21:10:39

Re: Strange UDev Message from Kernel

#3 2010-01-16 21:12:20

Re: Strange UDev Message from Kernel

#4 2010-01-16 22:02:51

Re: Strange UDev Message from Kernel

#5 2010-01-16 22:04:05

Re: Strange UDev Message from Kernel

#6 2010-01-16 22:04:58

Re: Strange UDev Message from Kernel

#7 2010-01-16 22:59:40

Re: Strange UDev Message from Kernel

#8 2010-01-16 23:44:31

Re: Strange UDev Message from Kernel

#9 2010-01-31 02:39:58

Re: Strange UDev Message from Kernel

#10 2010-02-06 16:51:30

Re: Strange UDev Message from Kernel

#11 2010-02-06 19:00:06

Re: Strange UDev Message from Kernel

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