kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.

Can you test the following kernels and report back? We are looking for
the first kernel version that exhibits this bug:

3.8 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-raring/
v3.9 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-saucy
v3.10-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-rc1-saucy/

You don't have to test every kernel, just up until the kernel that first
has this bug.  I don't expect 3.8 final to exhibit the bug, but it would
be good to test 3.8 on a Saucy install to confirm the issue is in the
kernel.

Thanks in advance!

** Tags added: regression-release

** Tags added: performing-bisect

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https://bugs.launchpad.net/bugs/1202700

Title:
  saucy kernel 300 second hang before root mounted rw on azure

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Saucy:
  Confirmed

Bug description:
  on azure saucy images
  (b39f27a8b8c64d52b05eac6a62ebad85__Ubuntu_DAILY_BUILD-saucy-
  13_10-amd64-server-20130718-en-us-30GB in 'US East' location). I get a
  300 second timeout before / is mounted RW.

  See attached dmesg for full dmesg.  snippet here.

  
  [    6.974849] scsi3 : storvsc_host_t
  [    6.977249] scsi 3:0:1:0: Direct-Access     Msft     Virtual Disk     1.0  PQ: 0 ANSI: 4
  [    6.981087]  sda: sda1
  [    6.983419] sd 3:0:1:0: Attached scsi generic sg2 type 0
  [    6.986119] sd 3:0:1:0: [sdb] 41943040 512-byte logical blocks: (21.4 GB/20.0 GiB)
  [    6.989874] sd 3:0:1:0: [sdb] Write Protect is off
  [    6.992325] sd 3:0:1:0: [sdb] Mode Sense: 0f 00 00 00
  [    6.992353] sd 2:0:0:0: [sda] Attached SCSI disk
  [    6.995243] sd 3:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
  [    6.999603] scsi4 : storvsc_host_t
  [    7.002527] scsi scan: INQUIRY result too short (5), using 36
  [    7.006224] scsi scan: INQUIRY result too short (5), using 36
  [    7.009942]  sdb: sdb1
  [    7.011837] scsi5 : storvsc_host_t
  [    7.015888] scsi scan: INQUIRY result too short (5), using 36
  [    7.019459] sd 3:0:1:0: [sdb] Attached SCSI disk
  [    7.022017] scsi scan: INQUIRY result too short (5), using 36
  [  303.184698] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
  [  305.379387] EXT4-fs (sda1): re-mounted. Opts: discard
  --- 
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jul 18 14:08 seq
   crw-rw---- 1 root audio 116, 33 Jul 18 14:08 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.11-0ubuntu1
  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: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CurrentDmesg: [  356.806779] init: cloud-config main process (1126) terminated with status 1
  DistroRelease: Ubuntu 13.10
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: Microsoft Corporation Virtual Machine
  MarkForUpload: True
  Package: linux (not installed)
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 hyperv_fb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-3-generic root=UUID=19f8b960-2ffd-4241-befd-fc605380cba6 ro console=tty1 console=ttyS0 earlyprintk=ttyS0 rootdelay=300
  ProcVersionSignature: User Name 3.10.0-3.12-generic 3.10.1
  RelatedPackageVersions:
   linux-restricted-modules-3.10.0-3-generic N/A
   linux-backports-modules-3.10.0-3-generic  N/A
   linux-firmware                            1.112
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  saucy uec-images
  Uname: Linux 3.10.0-3-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip floppy netdev plugdev video
  dmi.bios.date: 05/23/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 090006
  dmi.board.name: Virtual Machine
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 7.0
  dmi.chassis.asset.tag: 2175-9033-8610-7819-8007-6304-66
  dmi.chassis.type: 3
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 7.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr090006:bd05/23/2012:svnMicrosoftCorporation:pnVirtualMachine:pvr7.0:rvnMicrosoftCorporation:rnVirtualMachine:rvr7.0:cvnMicrosoftCorporation:ct3:cvr7.0:
  dmi.product.name: Virtual Machine
  dmi.product.version: 7.0
  dmi.sys.vendor: Microsoft Corporation

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