[Bug 818177] Re: boot failures caused by udev race

Wed Oct 5 21:22:51 UTC 2011

analysis of the two logs shows the following events missing from udev in
the failed case.

UDEV  [4.229209] add      /devices/pci0000:00/0000:00:01.1/host2/target2:0:1/2:0:1:0/block/sdc (block)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/host2/target2:0:1/2:0:1:0/block/sdc
SUBSYSTEM=block
DEVNAME=/dev/sdc
DEVTYPE=disk
SEQNUM=770
ID_ATA=1
ID_TYPE=disk
ID_BUS=ata
ID_MODEL=QEMU_HARDDISK
ID_MODEL_ENC=QEMU\x20HARDDISK\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
ID_REVISION=0.14.0
ID_SERIAL=QEMU_HARDDISK_QM00004
ID_SERIAL_SHORT=QM00004
ID_ATA_WRITE_CACHE=1
ID_ATA_WRITE_CACHE_ENABLED=0
ID_ATA_FEATURE_SET_SMART=1
ID_ATA_FEATURE_SET_SMART_ENABLED=1
ID_SCSI_COMPAT=SATA_QEMU_HARDDISK_QM00004
ID_PATH=pci-0000:00:01.1-scsi-1:0:1:0
ID_PATH_TAG=pci-0000_00_01_1-scsi-1_0_1_0
ID_FS_UUID=4qMaMd-jD2v-vzpj-ScTe-Rsz7-CDw0-3DCuLn
ID_FS_UUID_ENC=4qMaMd-jD2v-vzpj-ScTe-Rsz7-CDw0-3DCuLn
ID_FS_VERSION=LVM2\x20001
ID_FS_TYPE=LVM2_member
ID_FS_USAGE=raid
MAJOR=8
MINOR=32
DEVLINKS=/dev/disk/by-id/ata-QEMU_HARDDISK_QM00004 /dev/disk/by-id/scsi-SATA_QEMU_HARDDISK_QM00004 /dev/disk/by-path/pci-0000:00:01.1-scsi-1:0:1:0

UDEV  [4.229522] add      /devices/pci0000:00/0000:00:01.1 (pci)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1
SUBSYSTEM=pci
DRIVER=ata_piix
PCI_CLASS=10180
PCI_ID=8086:7010
PCI_SUBSYS_ID=1AF4:1100
PCI_SLOT_NAME=0000:00:01.1
MODALIAS=pci:v00008086d00007010sv00001AF4sd00001100bc01sc01i80
SEQNUM=851

UDEV  [4.230831] add      /devices/pci0000:00/0000:00:01.1/ata1/ata_port/ata1 (ata_port)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/ata_port/ata1
SUBSYSTEM=ata_port
SEQNUM=852

UDEV  [4.230937] add      /devices/pci0000:00/0000:00:01.1/ata1/link1/ata_link/link1 (ata_link)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/link1/ata_link/link1
SUBSYSTEM=ata_link
SEQNUM=853

UDEV  [4.229854] add      /devices/pci0000:00/0000:00:01.1/ata1/link1/dev1.0/ata_device/dev1.0 (ata_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/link1/dev1.0/ata_device/dev1.0
SUBSYSTEM=ata_device
SEQNUM=854

UDEV  [4.229959] add      /devices/pci0000:00/0000:00:01.1/ata1/link1/dev1.1/ata_device/dev1.1 (ata_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata1/link1/dev1.1/ata_device/dev1.1
SUBSYSTEM=ata_device
SEQNUM=855

UDEV  [4.230742] add      /devices/pci0000:00/0000:00:01.1/ata2/ata_port/ata2 (ata_port)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata2/ata_port/ata2
SUBSYSTEM=ata_port
SEQNUM=856

UDEV  [4.230209] add      /devices/pci0000:00/0000:00:01.1/ata2/link2/ata_link/l
ink2 (ata_link)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata2/link2/ata_link/link2
SUBSYSTEM=ata_link
SEQNUM=857

UDEV  [4.230318] add      /devices/pci0000:00/0000:00:01.1/ata2/link2/dev2.0/ata
_device/dev2.0 (ata_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata2/link2/dev2.0/ata_device/dev2.0
SUBSYSTEM=ata_device
SEQNUM=858

UDEV  [4.230428] add      /devices/pci0000:00/0000:00:01.1/ata2/link2/dev2.1/ata_device/dev2.1 (ata_device)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/ata2/link2/dev2.1/ata_device/dev2.1
SUBSYSTEM=ata_device
SEQNUM=859

UDEV  [4.230531] add      /devices/pci0000:00/0000:00:01.1/host1 (scsi)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/host1
SUBSYSTEM=scsi
DEVTYPE=scsi_host
SEQNUM=860

UDEV  [4.230638] add      /devices/pci0000:00/0000:00:01.1/host2 (scsi)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/host2
SUBSYSTEM=scsi
DEVTYPE=scsi_host
SEQNUM=868

UDEV  [4.231230] add      /devices/pci0000:00/0000:00:01.1/host2/scsi_host/host2 (scsi_host)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/host2/scsi_host/host2
SUBSYSTEM=scsi_host
SEQNUM=869

UDEV  [4.231140] add      /devices/pci0000:00/0000:00:01.1/host2/target2:0:1 (scsi)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:01.1/host2/target2:0:1
SUBSYSTEM=scsi
DEVTYPE=scsi_target
SEQNUM=870

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https://bugs.launchpad.net/bugs/818177

Title:
  boot failures caused by udev race

Status in “linux” package in Ubuntu:
  Incomplete
Status in “udev” package in Ubuntu:
  Confirmed
Status in “linux” source package in Oneiric:
  Incomplete
Status in “udev” source package in Oneiric:
  Confirmed

Bug description:
  After running a do-release-upgrade -d on a natty server, I'm unable to
  boot the machine properly.

  It looks like it doesn't see the local disks anymore.

  I think this looks quite a lot like the debbug linked from here:
  https://bugs.launchpad.net/ubuntu/oneiric/+source/linux/+bug/746751

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-7-server 3.0.0-7.8
  ProcVersionSignature: Ubuntu 3.0.0-7.8-server 3.0.0
  Uname: Linux 3.0.0-7-server x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 2011-07-29 13:34 seq
   crw-rw---- 1 root audio 116, 33 2011-07-29 13:34 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Date: Fri Jul 29 13:40:10 2011
  HibernationDevice: RESUME=UUID=844d17fa-ff69-4250-844b-33b930236c56
  IwConfig:
   lo        no wireless extensions.

   eth0      no wireless extensions.

   eth1      no wireless extensions.
  MachineType: HP ProLiant DL380 G5
  PciMultimedia:

  ProcEnviron:
   LANGUAGE=en_US:
   PATH=(custom, user)
   LANG=en_US
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-7-server root=/dev/mapper/User Name-root ro INIT_VERBOSE=yes
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-7-server N/A
   linux-backports-modules-3.0.0-7-server  N/A
   linux-firmware                          1.56
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: Upgraded to oneiric on 2011-07-29 (0 days ago)
  dmi.bios.date: 06/28/2007
  dmi.bios.vendor: HP
  dmi.bios.version: P56
  dmi.chassis.type: 23
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrP56:bd06/28/2007:svnHP:pnProLiantDL380G5:pvr:cvnHP:ct23:cvr:
  dmi.product.name: ProLiant DL380 G5
  dmi.sys.vendor: HP

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