05-udev-early.rules

05-udev-early.rules

[Alexander E. Patrakov]

Hello,

which of the rules in 05-udev-early.rules are actually relevant for 
linux-2.6.16.13? I am asking because the following has been reported:

udevd-event[992]: wait_for_sysfs: waiting for
'/sys/devices/platform/i8042/serio0/serio2/bus' failed

Right after it, the kernel reports:

IBM TrackPoint firmware: 0x0e, buttons: 3/3
input: TPPS/2 IBM TrackPoint as /class/input/input3

How to deal with this wait_for_sysfs failure?

The uevents are:

UDEV_LOG=3
ACTION­d
DEVPATH=/class/input/input3
SUBSYSTEM=input
SEQNUMW2
PHYSDEVPATH=/devices/platform/i8042/serio0/serio2
PHYSDEVBUS=serio
PHYSDEVDRIVER=psmouse
PRODUCT\x11/2/a/0
NAME="TPPS/2 IBM TrackPoint"
PHYS="synaptics-pt/serio0/input0"
EV=7
KEYp000 0 0 0 0 0 0 0 0
REL=3
MODALIAS=input:b0011v0002p000Ae0000-e0,1,2,k110,111,112,r0,1,amlsfw
UDEVD_EVENT=1

UDEV_LOG=3
ACTION­d
DEVPATH=/class/input/input3/mouse2
SUBSYSTEM=input
SEQNUMW3
PHYSDEVPATH=/devices/platform/i8042/serio0/serio2
PHYSDEVBUS=serio
PHYSDEVDRIVER=psmouse
MAJOR\x13
MINOR4
UDEVD_EVENT=1
DEVNAME=/dev/input/mouse2

UDEV_LOG=3
ACTION­d
DEVPATH=/class/input/input3/event3
SUBSYSTEM=input
SEQNUMW4
PHYSDEVPATH=/devices/platform/i8042/serio0/serio2
PHYSDEVBUS=serio
PHYSDEVDRIVER=psmouse
MAJOR\x13
MINORg
UDEVD_EVENT=1
DEVNAME=/dev/input/event3

-- 
Alexander E. Patrakov


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Re: 05-udev-early.rules

[Kay Sievers]

On Thu, May 04, 2006 at 12:03:16PM +0600, Alexander E. Patrakov wrote:
> which of the rules in 05-udev-early.rules are actually relevant for 
> linux-2.6.16.13? I am asking because the following has been reported:

There are two rules in the file in the source tree, both are needed.
If that:
  http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h”69d458b90bfb9117cbb488cfa645d94c3921b1
isn't in, you may need something to work around the netdev
race too.

> udevd-event[992]: wait_for_sysfs: waiting for
> '/sys/devices/platform/i8042/serio0/serio2/bus' failed
> 
> Right after it, the kernel reports:
> 
> IBM TrackPoint firmware: 0x0e, buttons: 3/3
> input: TPPS/2 IBM TrackPoint as /class/input/input3
> 
> How to deal with this wait_for_sysfs failure?

"input" is kind of weird regarding this timing. There is nothing you can
do besides increasing the timeout in the source code, or adding the same
rule a second time for "input". This may prevent it from happen in the
future:
  http://www.kernel.org/git/?p=linux/kernel/git/gregkh/patches.git;a=blob;hb=HEAD;f=driver/driver-core-bus-device-event-delay.patch

Kay


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