tm-unavailable in powerpc/tm failed on Bionic Power9

Bug #1813129 reported by Po-Hsu Lin
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Fix Released
Undecided
Po-Hsu Lin
linux (Ubuntu)
Fix Released
Undecided
Unassigned
Bionic
Fix Released
Undecided
Po-Hsu Lin

Bug Description

== Justification ==
The tm-unavailable test in powerpc from ubuntu_kernel_selftests will fail on Bionic PowerPC:
  $ sudo ./tm-unavailable
  Checking if FP/VEC registers are sane after a FP unavailable exception...
  Illegal instruction

This is because the Hardware Transactional Memory (HTM) is not supported on the revision of the processor in our PowerPC boxes.

== Fix ==
b395e55b (selftests/powerpc: Skip tm-unavailable if TM is not enabled)
With a prerequisite to make it a clean cherry-pick:
5783ee6e (selftests/powerpc: Check for pthread errors in tm-unavailable)

An extra check for this test:
   SKIP_IF(!have_htm())

Will be added to ensure we have HTM support before start testing.

This patchset has already landed in Cosmic and newer, and can be cherry-picked for Bionic.

For Xenial, we don't have this test in our tree.

== Test ==
Patch verified on a Bionic P9 system, the test will be marked as passed (skipped) with these two patches applied.

== Regression potential ==
None.
This patch is just for the kernel testing tool.

== Original Bug Report ==
$ sudo ./tm-unavailable
Checking if FP/VEC registers are sane after a FP unavailable exception...
Illegal instruction

For Power8 it's OK:

For P9 on Cosmic, this test will be skipped:
 selftests: tm: tm-unavailable
 ========================================
 test: tm_unavailable_test
 tags: git_version:unknown
 skip: tm_unavailable_test
 ok 1..10 selftests: tm: tm-unavailable [PASS]

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-44-generic 4.15.0-44.47
ProcVersionSignature: Ubuntu 4.15.0-44.47-generic 4.15.18
Uname: Linux 4.15.0-44-generic ppc64le
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Jan 24 07:22 seq
 crw-rw---- 1 root audio 116, 33 Jan 24 07:22 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: ppc64el
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Thu Jan 24 08:46:56 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0451:80ff Texas Instruments, Inc.
 Bus 001 Device 004: ID 0557:2419 ATEN International Co., Ltd
 Bus 001 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
PciMultimedia:

ProcFB: 0 astdrmfb
ProcKernelCmdLine: root=UUID=acd1a0d7-f6fc-4130-928c-c8b11ad6e4be ro console=hvc0
ProcLoadAvg: 0.15 0.10 1.47 1/1357 32937
ProcLocks:
 1: FLOCK ADVISORY WRITE 3482 00:17:520 0 EOF
 2: POSIX ADVISORY WRITE 3746 00:17:580 0 EOF
 3: POSIX ADVISORY WRITE 1800 00:17:368 0 EOF
 4: FLOCK ADVISORY WRITE 3744 00:17:568 0 EOF
 5: POSIX ADVISORY WRITE 3831 00:17:588 0 EOF
ProcSwaps:
 Filename Type Size Used Priority
 /swap.img file 8388544 0 -2
ProcVersion: Linux version 4.15.0-44-generic (buildd@bos02-ppc64el-004) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #47-Ubuntu SMP Mon Jan 14 11:26:40 UTC 2019
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-44-generic N/A
 linux-backports-modules-4.15.0-44-generic N/A
 linux-firmware 1.173.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
VarLogDump_list: total 0
cpu_cores: Number of cores present = 40
cpu_coreson: Number of cores online = 40
cpu_dscr: DSCR is 5
cpu_freq:
 min: 2.862 GHz (cpu 159)
 max: 2.862 GHz (cpu 3)
 avg: 2.862 GHz
cpu_runmode:
 Could not retrieve current diagnostics mode,
 No kernel interface to firmware
cpu_smt: SMT=4

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Tested on Bionic P9 with the latest kernel tree from upstream, this test will pass (skipped):
 selftests: tm: tm-unavailable
 ========================================
 test: tm_unavailable_test
 tags: git_version:v5.1-rc6-0-g085b77558-dirty
 [SKIP] Test skipped on line 346
 skip: tm_unavailable_test
 ok 1..10 selftests: tm: tm-unavailable [PASS]

Changed in linux (Ubuntu Bionic):
status: New → Confirmed
Po-Hsu Lin (cypressyew)
Changed in linux (Ubuntu):
status: Confirmed → Fix Released
Po-Hsu Lin (cypressyew)
Changed in linux (Ubuntu Bionic):
assignee: nobody → Po-Hsu Lin (cypressyew)
Changed in ubuntu-kernel-tests:
assignee: nobody → Po-Hsu Lin (cypressyew)
status: New → In Progress
Changed in linux (Ubuntu Bionic):
status: Confirmed → In Progress
Po-Hsu Lin (cypressyew)
description: updated
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :
Changed in linux (Ubuntu Bionic):
status: In Progress → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

tags: added: verification-needed-bionic
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Passed with Bionic PowerPC

tags: added: verification-done-bionic
removed: verification-needed-bionic
Changed in ubuntu-kernel-tests:
status: In Progress → Fix Released
Revision history for this message
Launchpad Janitor (janitor) wrote :
Download full text (3.8 KiB)

This bug was fixed in the package linux - 4.15.0-51.55

---------------
linux (4.15.0-51.55) bionic; urgency=medium

  * linux: 4.15.0-51.55 -proposed tracker (LP: #1829219)

  * disable a.out support (LP: #1818552)
    - [Config] Disable a.out support

  * [UBUNTU] qdio: clear intparm during shutdown (LP: #1828394)
    - s390/qdio: clear intparm during shutdown

  * ftrace in ubuntu_kernel_selftests hang with Cosmic kernel (LP: #1826385)
    - kprobes/x86: Fix instruction patching corruption when copying more than one
      RIP-relative instruction

  * touchpad not working on lenovo yoga 530 (LP: #1787775)
    - Revert "UBUNTU: SAUCE: i2c:amd Depends on ACPI"
    - Revert "UBUNTU: SAUCE: i2c:amd move out pointer in union i2c_event_base"
    - Revert "UBUNTU: SAUCE: i2c:amd I2C Driver based on PCI Interface for
      upcoming platform"
    - i2c: add helpers to ease DMA handling
    - i2c: add a message flag for DMA safe buffers
    - i2c: add extra check to safe DMA buffer helper
    - i2c: Add drivers for the AMD PCIe MP2 I2C controller
    - [Config] Update config for AMD MP2 I2C driver
    - [Config] Update I2C_AMD_MP2 annotations

  * tm-unavailable in powerpc/tm failed on Bionic Power9 (LP: #1813129)
    - selftests/powerpc: Check for pthread errors in tm-unavailable
    - selftests/powerpc: Skip tm-unavailable if TM is not enabled

  * cp_abort in powerpc/context_switch from ubunut_kernel_selftests failed on
    Bionic P9 (LP: #1813134)
    - selftests/powerpc: Remove redundant cp_abort test

  * bionic/linux: completely remove snapdragon files from sources (LP: #1827880)
    - [Packaging] remove snapdragon dead files
    - [Config] update configs after snapdragon removal

  * The noise keeps occurring when Headset is plugged in on a Dell machine
    (LP: #1827972)
    - ALSA: hda/realtek - Fixed Dell AIO speaker noise

  * Geneve tunnels don't work when ipv6 is disabled (LP: #1794232)
    - geneve: correctly handle ipv6.disable module parameter

  * There are 4 HDMI/Displayport audio output listed in sound setting without
    attach any HDMI/DP monitor (LP: #1827967)
    - ALSA: hda/hdmi - Read the pin sense from register when repolling
    - ALSA: hda/hdmi - Consider eld_valid when reporting jack event

  * Headphone jack switch sense is inverted: plugging in headphones disables
    headphone output (LP: #1824259)
    - ASoC: rt5645: Headphone Jack sense inverts on the LattePanda board

  * CTAUTO:DevOps:860.50:devops4fp1:Error occurred during LINUX Dmesg error
    Checking for all LINUX clients for devops4p10 (LP: #1766201)
    - SAUCE: integrity: downgrade error to warning

  * Screen freeze after resume from S3 when HDMI monitor plugged on Dell
    Precision 7740 (LP: #1825958)
    - PCI: Restore resized BAR state on resume

  * potential memory corruption on arm64 on dev release (LP: #1827437)
    - driver core: Postpone DMA tear-down until after devres release

  * powerpc/pmu/ebb test in ubuntu_kernel_selftest failed with "error while
    loading shared libraries" on Bionic/Cosmic PowerPC (LP: #1812805)
    - selftests/powerpc/pmu: Link ebb tests with -no-pie

  * unnecessary request_queue freeze (LP: #1815733)
    - block: av...

Read more...

Changed in linux (Ubuntu Bionic):
status: Fix Committed → Fix Released
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.