I am experiencing the same problem on the AMD64 kernel. It seems udev is continuously discovering my CD/DVD drive. Stopping udev solves the problem but this is undesirable as a long term solution.
Output of "sudo udevadm monitor --property" shows the following repeating several times per second: KERNEL[1274866057.958054] change /devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0/block/sr0 (block) UDEV_LOG=3 ACTION=change DEVPATH=/devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0/block/sr0 SUBSYSTEM=block DEVNAME=sr0 DEVTYPE=disk SEQNUM=43253 MAJOR=11 MINOR=0 UDEV [1274866057.958095] change /devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0 (scsi) UDEV_LOG=3 ACTION=change DEVPATH=/devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0 SUBSYSTEM=scsi SDEV_MEDIA_CHANGE=1 DEVTYPE=scsi_device DRIVER=sr MODALIAS=scsi:t-0x05 SEQNUM=43252 KERNEL[1274866057.997645] change /devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0 (scsi) UDEV_LOG=3 ACTION=change DEVPATH=/devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0 SUBSYSTEM=scsi SDEV_MEDIA_CHANGE=1 DEVTYPE=scsi_device DRIVER=sr MODALIAS=scsi:t-0x05 SEQNUM=43254 UDEV [1274866058.035694] change /devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0/block/sr0 (block) UDEV_LOG=3 ACTION=change DEVPATH=/devices/pci0000:00/0000:00:1f.2/host4/target4:0:0/4:0:0:0/block/sr0 SUBSYSTEM=block DEVNAME=/dev/sr0 DEVTYPE=disk SEQNUM=43253 ID_CDROM=1 ID_CDROM_CD_R=1 ID_CDROM_CD_RW=1 ID_CDROM_DVD=1 ID_CDROM_DVD_R=1 ID_CDROM_DVD_RW=1 ID_CDROM_DVD_RAM=1 ID_CDROM_DVD_PLUS_R=1 ID_CDROM_DVD_PLUS_RW=1 ID_CDROM_DVD_PLUS_R_DL=1 ID_CDROM_MRW=1 ID_CDROM_MRW_W=1 ID_SCSI=1 ID_VENDOR=Optiarc ID_VENDOR_ENC=Optiarc\x20 ID_MODEL=DVD_RW_AD-7560S ID_MODEL_ENC=DVD\x20RW\x20AD-7560S\x20 ID_REVISION=SX01 ID_TYPE=cd ID_BUS=scsi ID_PATH=pci-0000:00:1f.2-scsi-4:0:0:0 ACL_MANAGE=1 GENERATED=1 UDISKS_PRESENTATION_NOPOLICY=0 MAJOR=11 MINOR=0 DEVLINKS=/dev/block/11:0 /dev/scd0 /dev/disk/by-path/pci-0000:00:1f.2-scsi-4:0:0:0 /dev/cdrom /dev/cdrw /dev/dvd /dev/dvdrw -- Ubuntu 10.04 32bit. Udev high cpu usage when it is started also on AMD64 debian testing https://bugs.launchpad.net/bugs/578180 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
