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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Tags added: kernel-da-key

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https://bugs.launchpad.net/bugs/1585668

Title:
  Random file corruption when writing large files to hba mounted volume

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  We have an Ubuntu 16.04 LTS server with a 3Par volume via QLogic HBA.
  When mounted, writing large files to it repeatedly produces the
  following errors:

  [435753.554230] sd 5:0:0:1: [sde] tag#10 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  [435753.554232] sd 5:0:0:1: [sde] tag#10 Sense Key : Illegal Request [current]
  [435753.554233] sd 5:0:0:1: [sde] tag#10 Add. Sense: Invalid field in cdb
  [435753.554235] sd 5:0:0:1: [sde] tag#10 CDB: Write same(16) 93 08 00 00 00 00 04 7f ff f7 00 7f ff ff 00 00
  [435753.554236] blk_update_request: critical target error, dev sde, sector 75497463

  We see similar errors with XFS and EXT4. ZFS seems to work fine
  though.  Here's how to recreate:

  // create a large file
  $ sudo dd if=/dev/urandom of=/random_file.bin bs=1048576 count=800

  // 3Par volume is /dev/sde
  $ sudo mkfs.xfs /dev/sde

  // mount to /test
  $ sudo mount /dev/sde /test

  // watch syslog
  $ tail -f /var/log/syslog &

  $ sudo cp /random_file.bin /test

  WORKAROUND: sudo sh -c 'echo 16384 >
  /sys/block/sde/queue/max_sectors_kb'

  We made this permanent by adding a udev rule:
  $ cat /etc/udev/rules.d/61-block-max-sectors.rules
  ACTION=="add|change", KERNEL=="sd[a-z]", SUBSYSTEM=="block", DRIVERS=="qla2xxx", RUN+="/bin/sh -c '/bin/echo 16384 > /sys/block/%k/queue/max_sectors_kb'"

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.40
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 May 24 12:30 seq
   crw-rw---- 1 root audio 116, 33 May 24 12:30 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Wed May 25 10:18:33 2016
  HibernationDevice: RESUME=UUID=8e53840e-3198-4383-ac8b-0a811ed2d0b0
  InstallationDate: Installed on 2016-05-19 (5 days ago)
  InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3)
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. PowerEdge R310
  PciMultimedia:

  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=459ae48a-619a-4e7e-8001-bbdf1968a944 ro
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/17/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.2
  dmi.board.name: 05XKKK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R310
  dmi.sys.vendor: Dell Inc.

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