Udev Warning - wait_for_sysfs

Udev Warning - wait_for_sysfs

[jonathan westlake]

Udev Support

Problems with a dev not found ....

From dmesg ...
 
wait_for_sysfs[6744]: either wait_for_sysfs (udev 039) needs an update
to handle the device '/class/net/nlv0' properly (no device symlink) or
the sysfs-support of your device's driver needs to be fixed, please
report to <linux-hotplug-devel@lists.sourceforge.net <mailto:linux-hotplug-devel@lists.sourceforge.net>>
Nov 29 23:51:38 ldnukslx38502 kernel: Unable to handle kernel NULL
pointer dereference at virtual address 0000002c
Nov 29 23:51:38 ldnukslx38502 kernel:  printing eip:
...
...

When starting Apani netlock VPN service using net device nlv0
unhappiness reigns! Whether kernel is 2.6.9-1.667 (FC3) or kernel is custom
built and is PREEMPT using 2.6.10-rc2 error occurs on dev-up.

Package Version-Release: udev-039-8.FC3

Additional info:

Nov 29 23:50:28 ldnukslx38502 wait_for_sysfs[6744]: either
wait_for_sysfs (udev 039) needs an update to handle the device
'/class/net/nlv0' properly (no device symlink) or the sysfs-support of
your device's driver needs to be fixed, please report to
<linux-hotplug-devel@lists.sourceforge.net <mailto:linux-hotplug-devel@lists.sourceforge.net>>
Nov 29 23:51:38 ldnukslx38502 kernel: Unable to handle kernel NULL
pointer dereference at virtual address 0000002c
Nov 29 23:51:38 ldnukslx38502 kernel:  printing eip:
Nov 29 23:51:38 ldnukslx38502 kernel: c02a5351
Nov 29 23:51:38 ldnukslx38502 kernel: *pde = 00000000
Nov 29 23:51:38 ldnukslx38502 kernel: Oops: 0000 [#1]
Nov 29 23:51:38 ldnukslx38502 kernel: PREEMPT
Nov 29 23:51:38 ldnukslx38502 kernel: Modules linked in: nlvcard
mishim ipt_LOG ipt_multiport ipt_state ip_conntrack_tftp
ip_conntrack_proto_sctp ip_conntrack_irc ip_conntrack_ftp
ip_conntrack_amanda ip_conntrack iptable_filter ip_tables ndiswrapper
i915 md5 ipv6 parport_pc lp parport autofs4 sunrpc dm_mod video button
battery ac ohci1394 hci_usb bluetooth ieee1394 uhci_hcd ehci_hcd
i2c_i801 i2c_core snd_intel8x0m snd_intel8x0 snd_ac97_codec
snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore
snd_page_alloc tg3 ext3 jbd
Nov 29 23:51:38 ldnukslx38502 kernel: CPU:    0
Nov 29 23:51:38 ldnukslx38502 kernel: EIP:    0060:[<c02a5351>]   
Tainted: P    VLI
Nov 29 23:51:38 ldnukslx38502 kernel: EFLAGS: 00210202   (2.6.10-rc2)
...
...

Udev entry before actually tunneling, but after service is started:

[root@ldnukslx38502 cvc_linux-rh-gcc3-3.1.1e]# udevinfo  -a -p
/sys/class/net/nlv0/

udevinfo starts with the device the node belongs to and then walks up the
device chain, to print for every device found, all possibly useful
attributes
in the udev key format.
Only attributes within one device section may be used together in one
rule,
to match the device for which the node will be created.

  looking at class device '/sys/class/net/nlv0':
    SYSFS{addr_len}="6"
    SYSFS{address}="00:00:00:00:00:00"
    SYSFS{broadcast}="ff:ff:ff:ff:ff:ff"
    SYSFS{features}="0x0"
    SYSFS{flags}="0x82"
    SYSFS{ifindex}="6"
    SYSFS{iflink}="6"
    SYSFS{mtu}="1500"
    SYSFS{tx_queue_len}="0"
    SYSFS{type}="1"

Hope this helps.
Jon



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Re: Udev Warning - wait_for_sysfs

[Kay Sievers]

On Thu, 2004-12-02 at 09:18 +0000, jonathan westlake wrote:
> Udev Support
> 
> Problems with a dev not found ....
> 
> From dmesg ...
>  
> wait_for_sysfs[6744]: either wait_for_sysfs (udev 039) needs an update
> to handle the device '/class/net/nlv0' properly (no device symlink) or
> the sysfs-support of your device's driver needs to be fixed, please
> report to <linux-hotplug-devel@lists.sourceforge.net <mailto:linux-hotplug-devel@lists.sourceforge.net>>

That's already fixed. A later version of udev will not print this.

Thanks,
Kay



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Discover which products truly live up to the hype. Start reading now. 
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