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[Launchpad Bug Tracker <1559609@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 4.4.0-16.32

---------------
linux (4.4.0-16.32) xenial; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1561727

  * fix thermal throttling due to commit "Thermal: initialize thermal zone
    device correctly"  (LP: #1561676)
    - Thermal: Ignore invalid trip points

  * Thinkpad T460: Trackpoint mouse buttons instantly generate "release" event
    on press (LP: #1553811)
    - SAUCE: (noup) Input: synaptics - handle spurious release of trackstick
      buttons, again

  * reading /sys/kernel/security/apparmor/profiles requires CAP_MAC_ADMIN
    (LP: #1560583)
    - SAUCE: apparmor: Allow ns_root processes to open profiles file
    - SAUCE: apparmor: Consult sysctl when reading profiles in a user ns

  * linux: sync virtualbox drivers to 5.0.16-dfsg-2 (LP: #1561492)
    - ubuntu: vbox -- update to 5.0.16-dfsg-2

  * s390/kconfig: CONFIG_NUMA without CONFIG_NUMA_EMU does not make any sense on
    s390x (LP: #1557690)
    - [Config] CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=n for s390x

  * spl/zfs fails to build on s390x (LP: #1519814)
    - [Config] s390x -- re-enable zfs
    - [Config] zfs -- disable powerpc until the test failures can be resolved

  * linux: sync to ZFS 0.6.5.6 stable release (LP: #1561483)
    - SAUCE: (noup) Update spl to 0.6.5.6-0ubuntu1, zfs to 0.6.5.6-0ubuntu1

  * zfs: enable zfs for 64bit powerpc kernels (LP: #1558871)
    - [Packaging] zfs -- handle rprovides via dpkg-gencontrol
    - [Config] powerpc -- convert zfs configuration to custom_override

  * Memory arena corruption with FUSE (was Memory allocation failure crashes
    kernel hard, presumably related to FUSE) (LP: #1505948)
    - SAUCE: (noup) fuse: do not use iocb after it may have been freed
    - SAUCE: (noup) fuse: Add reference counting for fuse_io_priv

  * cgroup namespaces: add a 'nsroot=' mountinfo field (LP: #1560489)
    - SAUCE: (noup) cgroup namespaces: add a 'nsroot=' mountinfo field

  * linux packaging: clear remaining redundant delta (LP: #1560445)
    - [Debian] Remove generated intermediate files on clean

  * arm64: guest hangs when ntpd is running (LP: #1549494)
    - Revert "hrtimer: Add support for CLOCK_MONOTONIC_RAW"
    - Revert "hrtimer: Catch illegal clockids"
    - Revert "KVM: arm/arm64: timer: Switch to CLOCK_MONOTONIC_RAW"

  * Need enough contiguous memory to support GICv3 ITS table (LP: #1558828)
    - [Config] CONFIG_FORCE_MAX_ZONEORDER=13 on arm64
    - SAUCE: (no-up) arm64: gicv3: its: Increase FORCE_MAX_ZONEORDER for Cavium
      ThunderX

  * update arcmsr to version v1.30.00.22-20151126 to fix card timeouts
    (LP: #1559609)
    - arcmsr: fixed getting wrong configuration data
    - arcmsr: fixes not release allocated resource
    - arcmsr: make code more readable
    - arcmsr: adds code to support new Areca adapter ARC1203
    - arcmsr: changes driver version number
    - arcmsr: more readability improvements
    - arcmsr: Split dma resource allocation to a new function
    - arcmsr: change driver version to v1.30.00.22-20151126

  * server image has no keyboard, desktop image works (LP: #1559692)
    - [Config] Rework input-modules (d-i) list

  * PMU support for Cavium ThunderX (LP: #1559349)
    - arm64: perf: Rename Cortex A57 events
    - arm64/perf: Add Cavium ThunderX PMU support
    - arm64: perf: Enable PMCR long cycle counter bit
    - arm64: perf: Extend event mask for ARMv8.1
    - arm64: dts: Add Cavium ThunderX specific PMU

  * Show ARM PMU events in perf stat (LP: #1559350)
    - drivers/perf: kill armpmu_register
    - arm: perf: Convert event enums to #defines
    - arm: perf: Add event descriptions
    - arm64: perf: Convert event enums to #defines
    - arm64: perf: Add event descriptions
    - ARM: perf: add format entry to describe event -> config mapping
    - arm64: perf: add format entry to describe event -> config mapping

  * [Bug]HSW/BDW EDAC driver reports wrong DIMM (LP: #1559904)
    - EDAC/sb_edac: Fix computation of channel address

  * 5-10 second delay in kernel boot with kernel command line ip= (LP: #1259861)
    - [Config] disable CONFIG_IP_PNP

  * Miscellaneous Ubuntu changes
    - [Debian] Silence the reconstruct script

 -- Tim Gardner <tim.gardner@xxxxxxxxxxxxx>  Mon, 21 Mar 2016 10:15:31
-0600

** Changed in: linux (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1559609

Title:
  arcmsr times out with ARC1882 RAID card

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released

Bug description:
  tested the latest xenial iso on a file server featuring an ARC-
  1882ix-24 RAID controller, and got weird timeout issues, followed by
  complete loss of access to anything connected to the RAID controller.
  The timeouts occur after a random amount of uptime (sometimes minutes,
  sometimes days), for example:

  kernel: [1665409.969229] arcmsr2: abort device command of scsi id = 0 lun = 1
  kernel: [1665411.727535] arcmsr2: scsi id = 0 lun = 1 ccb = '0xffff884fe008e780' poll command abort successfully
  kernel: [1665411.727885] arcmsr2: abort device command of scsi id = 0 lun = 1
  kernel: [1665411.727898] arcmsr2: abort device command of scsi id = 0 lun = 1
  kernel: [1665413.138235] arcmsr2: scsi id = 0 lun = 1 ccb = '0xffff884fe0012300' poll command abort successfully
  ...
  kernel: [1665445.804546] arcmsr: executing bus reset eh.....num_resets = 2, num_aborts = 146
  kernel: [1665455.851353] arcmsr2: pCCB ='0xffff884fe002a700' isr got aborted command
  kernel: [1665455.851366] arcmsr2: pCCB ='0xffff884fe01c0a00' isr got aborted command
  kernel: [1665455.851373] arcmsr2: isr get an illegal ccb command #011#011#011#011done acb = '0xffff884fe0b8c798'ccb = '0xffff884fe00e9680' ccbacb = '0xffff884fe0b8c798' startdone = 0x0 ccboutstandingcount = -1
  kernel: [1665455.851378] arcmsr2: isr get an illegal ccb command #011#011#011#011done acb = '0xffff884fe0b8c798'ccb = '0xffff884fe0070280' ccbacb = '0xffff884fe0b8c798' startdone = 0x0 ccboutstandingcount = -1
  ...
  kernel: [1665455.852655] sd 2:0:0:3: [sdd] Medium access timeout failure. Offlining disk!
  kernel: [1665455.890032] sd 2:0:0:4: [sde] Medium access timeout failure. Offlining disk!
  kernel: [1665455.926613] sd 2:0:0:1: [sdb] Medium access timeout failure. Offlining disk!
  kernel: [1665455.963288] sd 2:0:0:2: [sdc] Medium access timeout failure. Offlining disk!

  some digging revealed that mainline 4.4 as well as xenial's
  4.4.0-14-generic still feature an old, buggy arcmsr driver
  v1.30.00.04-20140919, which claims to "supports" the 1882, but does
  not really...

  Areca seems to have managed to get a fixed driver into mainline 4.5
  (version v1.30.00.22-20151126), and it seems to be a small patch on
  arcmsr.h and a large one on arcmsr_hba.c, and upon a first glance, I
  didn't see anything 4.5-specific in the code:

  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/diff/drivers/scsi/arcmsr/arcmsr.h?id=v4.5&id2=v4.4
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/diff/drivers/scsi/arcmsr/arcmsr_hba.c?id=v4.5&id2=v4.4

  Note that we are using v1.30.0X.21-20151016 (as provided by
  Areca.com.tw) on productive 14.04.4 LTS servers featuring ARC1882
  controllers, so chances are good that version 22 (as included in 4.5
  mainline) to work well.

  This would not only allow ARC-188x controllers to work properly with
  Xenial out-of-the-box, it should also add support for the (somewhat
  popular?) ARC-1203 series

  ===
  Kernel-Description: update arcmsr to version v1.30.00.22-20151126 to fix card timeouts

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