Please enable zswap again

Bug #1315203 reported by Gabriel de Perthuis on 2014-05-02
18
This bug affects 4 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Tim Gardner
Trusty
Undecided
Tim Gardner
Utopic
Undecided
Tim Gardner

Bug Description

CONFIG_ZSWAP was enabled in 3.11.0-5.11 (bug #1215379), then disabled without explanation on 3.13.0-21.43 (bug #1300412).
Please enable zswap again, I find it quite useful (I use it on desktops and laptops).
Linking in zswap has no effect unless zswap.enabled is passed on the kernel command line.
Thank you.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1315203

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Gabriel de Perthuis (g2p) wrote :

(no logs needed)

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
description: updated
Tim Gardner (timg-tpi) wrote :

Gabriel - ZSWAP was suspected of causing instabilities in the ppc64el kernel, but I see now that it could not have. I guess I should have looked a bit closer.

Changed in linux (Ubuntu Trusty):
assignee: nobody → Tim Gardner (timg-tpi)
status: New → In Progress
Changed in linux (Ubuntu Utopic):
assignee: nobody → Tim Gardner (timg-tpi)
status: Confirmed → In Progress
Tim Gardner (timg-tpi) on 2014-05-02
Changed in linux (Ubuntu Utopic):
status: In Progress → Fix Committed
Changed in linux (Ubuntu Trusty):
status: In Progress → Fix Committed
Brad Figg (brad-figg) 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-trusty' to 'verification-done-trusty'.

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-trusty
Gabriel de Perthuis (g2p) wrote :

Yes, zswap can be enabled at boot and it's been working well for a few days.

    sudo sh -c "grep . /sys/kernel/debug/zswap/*"

tags: added: verification-done-trusty
removed: verification-needed-trusty
Launchpad Janitor (janitor) wrote :
Download full text (11.0 KiB)

This bug was fixed in the package linux - 3.13.0-27.50

---------------
linux (3.13.0-27.50) trusty; urgency=low

  [ Brad Figg ]

  * Revert "rtlwifi: Set the link state"

linux (3.13.0-27.49) trusty; urgency=low

  [ Brad Figg ]

  * Revert "SAUCE: (no-up) HID: rmi: do not stop the device at the end of
    probe"
  * Revert "SAUCE: (no-up) HID: rmi: introduce RMI driver for Synaptics
    touchpads"
  * Revert "[Config] CONFIG_HID_RMI=m"

linux (3.13.0-26.48) trusty; urgency=low

  [ Benjamin Tissoires ]

  * SAUCE: (no-up) HID: rmi: introduce RMI driver for Synaptics touchpads
    - LP: #1305522
  * SAUCE: (no-up) HID: rmi: do not stop the device at the end of probe
    - LP: #1305522

  [ Kamal Mostafa ]

  * Merged back Ubuntu-3.13.0-24.47 security release
  * Revert "n_tty: Fix n_tty_write crash when echoing in raw mode"
    - LP: #1314762
  * Release Tracking Bug
    - LP: #1316835

  [ Tim Gardner ]

  * [Config] CONFIG_HID_RMI=m
    - LP: #1305522
  * [Config] CONFIG_CRYPTO_DEV_NX=n for ppc64el
    - LP: #1314625
  * [Config] CONFIG_ZSWAP=y
    - LP: #1315203
  * Add rpcsec_gss_krb5 to generic inclusion list
    - LP: #769527

  [ Upstream Kernel Changes ]

  * HID: hidraw: make comment more accurate and nicer
    - LP: #1305522
  * HID: remove hid_get_raw_report in struct hid_device
    - LP: #1305522
  * HID: i2c-hid: implement ll_driver transport-layer callbacks
    - LP: #1305522
  * HID: add inliners for ll_driver transport-layer callbacks
    - LP: #1305522
  * HID: Add transport-driver callbacks to the hid_ll_driver struct
    - LP: #1305522
  * drm/nouveau: fail runtime pm properly.
    - LP: #1313986
  * drm/nouveau: don't suspend/resume display on runtime s/r
    - LP: #1313986
  * n_tty: Fix n_tty_write crash when echoing in raw mode
    - LP: #1314762
    - CVE-2014-0196
  * floppy: ignore kernel-only members in FDRAWCMD ioctl input
    - LP: #1316729
    - CVE-2014-1737
  * floppy: don't write kernel-only members to FDRAWCMD ioctl output
    - LP: #1316735
    - CVE-2014-1738

linux (3.13.0-25.47) trusty; urgency=low

  [ Joseph Salisbury ]

  * Release Tracking Bug
    - LP: #1313868

  [ Adam Lee ]

  * [Config] CONFIG_RTL8723BE=m, CONFIG_RTL8723_COMMON=m
    - LP: #1240940

  [ Alex Hung ]

  * SAUCE: (no-up) dell-led: add mic mute led interface
    - LP: #1308297

  [ Andy Whitcroft ]

  * SAUCE: (no-up) powerpc: Increase COMMAND_LINE_SIZE to 2048 from 512.
    - LP: #1306677

  [ Ben Collins ]

  * [Config] Disable PAMU on Freescale kernels
    - LP: #1311738

  [ Tim Gardner ]

  * Revert "SAUCE: x86, hyperv: bypass the timer_irq_works() check"
    - LP: #1311683
  * SAUCE: (no-up) ALSA: usb-audio: Suppress repetitive debug messages from
    retire_playback_urb()
    - LP: #1305133
  * SAUCE: (no-up) 'BUG:' message unnecessarily triggers kerneloops
    - LP: #1305480
  * [Config] CONFIG_POWERNV_CPUFREQ=m
    - LP: #1309576
  * [Config] CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y for ppc64el
    - LP: #1309576
  * [Config] CONFIG_TRANSPARENT_HUGEPAGE=n for arm64
    - LP: #1309221
  * [Config] CONFIG_MEMCG_KMEM=y
    - LP: #1309586
  * [Config] CONFIG_CRASH_DUMP=y for ppc64el
    - LP: #1312783

  [ Upstream Kernel Change...

Changed in linux (Ubuntu Trusty):
status: Fix Committed → Fix Released
Changed in linux (Ubuntu):
status: Fix Committed → Invalid
Changed in linux (Ubuntu Utopic):
status: Fix Committed → Invalid
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