with 11.3-factory with xen dom0 kernel I getplenty of these messages below. /etc/udev/rules.d/79-yast2-drivers.rules does exist but it's empty:

    # ll /etc/udev/rules.d/79-yast2-drivers.rules
    -rw-r--r-- 1 root root 0 Apr 13 16:13 /etc/udev/rules.d/79-yast2-drivers.rules

why does udevd complain about an existing (but empty) file ?


os4:/etc/xen # uname -a
Linux os4 2.6.34-rc6-7-xen #1 SMP 2010-05-04 23:21:35 +0200 x86_64 x86_64 x86_64 GNU/Linux

os4:/etc/xen # rpm -qf /sbin/udevd 
udev-153-1.2.x86_64




one reason that there are so many of these messages (~10/sec after boot) is related to some USB problems with the usb keyboard from the IPMI interface on this main board:


May 12 14:55:23 os4 kernel: klogd 1.4.1, log source = /proc/kmsg started.
May 12 14:55:23 os4 kernel: [   10.576518] usb 1-7: new high speed USB device using ehci_hcd and address 40
May 12 14:55:23 os4 kernel: [   10.648293] hub 1-0:1.0: unable to enumerate USB device on port 7
May 12 14:55:23 os4 kernel: [   10.896029] usb 1-7: new high speed USB device using ehci_hcd and address 41
May 12 14:55:23 os4 kernel: [   10.964286] hub 1-0:1.0: unable to enumerate USB device on port 7
May 12 14:55:23 os4 kernel: [   11.208022] usb 1-7: new high speed USB device using ehci_hcd and address 42
May 12 14:55:23 os4 kernel: [   11.280305] hub 1-0:1.0: unable to enumerate USB device on port 7


after resetting the IMPI board those usb messages stopped (and the ipmi console keyboard support starts working), but even now without any usb problems I get some few to tens of those udev messages er minute:


May 12 15:07:59 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:07:59 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:07:59 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:07:59 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:07:59 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:00 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'
May 12 15:08:01 os4 udevd[481]: can not read '/etc/udev/rules.d/79-yast2-drivers.rules'


grep /etc/udev/rules.d/79-yast2-drivers.rules /var/log/messages| cut -d: -f-2| uniq -c | less
     75 May 12 14:55
    276 May 12 14:56
    176 May 12 14:57
     28 May 12 14:59
    443 May 12 15:00
    636 May 12 15:01
    614 May 12 15:02
    662 May 12 15:03
    771 May 12 15:04
    658 May 12 15:05
    674 May 12 15:06
    699 May 12 15:07
    612 May 12 15:08
    559 May 12 15:09
    459 May 12 15:10
    391 May 12 15:11
     25 May 12 15:12
      4 May 12 15:13
     13 May 12 15:14
      4 May 12 15:15
      3 May 12 15:19
      2 May 12 15:20
      1 May 12 15:25
      4 May 12 15:30
      1 May 12 15:35
      2 May 12 15:36
     10 May 12 15:37
     12 May 12 15:38
     57 May 12 15:40
     35 May 12 15:41
      8 May 12 15:45
      6 May 12 15:46
     14 May 12 15:47
     21 May 12 15:48
      2 May 12 15:49
     56 May 12 15:50
     12 May 12 15:51
      3 May 12 15:52
      2 May 12 15:54
      1 May 12 15:55