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[Bug 1503930] [NEW] zeitgeist-datahub "Freezing of tasks failed after 20.005 seconds"

To: dx-packages@xxxxxxxxxxxxxxxxxxx
From: Bryce Nesbitt <1503930@xxxxxxxxxxxxxxxxxx>
Date: Thu, 08 Oct 2015 00:45:47 -0000
Reply-to: Bug 1503930 <1503930@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

My system no longer properly goes to sleep.  The logs are filled with
variants of:

[114631.282599] PM: Syncing filesystems ... done.
[114631.328752] PM: Preparing system for mem sleep
[114631.896631] Freezing user space processes ... 
[114651.913199] Freezing of tasks failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0):
[114651.913321] zeitgeist-datah D ffff88033fc33180     0  4659   4142 0x00000004
[114651.913325]  ffff8802d6a05aa8 0000000000000086 ffff8802f3c4c800 ffff8802d6a05fd8
[114651.913328]  0000000000013180 0000000000013180 ffff8802f3c4c800 ffff88032a3bbe28
[114651.913330]  ffff8800b0366000 ffff8802d6a05ad0 ffff88032a3bbf08 ffff88032a3bbe28
[114651.913333] Call Trace:
[114651.913340]  [<ffffffff817280c9>] schedule+0x29/0x70
[114651.913345]  [<ffffffff812add35>] __fuse_request_send+0x115/0x280
[114651.913350]  [<ffffffff810ab390>] ? prepare_to_wait_event+0x100/0x100
[114651.913352]  [<ffffffff812adeb2>] fuse_request_send+0x12/0x20
[114651.913355]  [<ffffffff812b27f4>] fuse_dentry_revalidate+0x194/0x350
[114651.913360]  [<ffffffff811c8fed>] lookup_fast+0x26d/0x2c0
[114651.913363]  [<ffffffff811cabc3>] link_path_walk+0x1a3/0x880
[114651.913365]  [<ffffffff810a543d>] ? enqueue_entity+0x2ad/0xbb0
[114651.913368]  [<ffffffff811cb54b>] path_lookupat+0x5b/0x790
[114651.913372]  [<ffffffff81098499>] ? ttwu_do_wakeup+0x19/0xc0
[114651.913376]  [<ffffffff811a3425>] ? kmem_cache_alloc+0x35/0x1e0
[114651.913378]  [<ffffffff811ce39f>] ? getname_flags+0x4f/0x190
[114651.913381]  [<ffffffff811cbcab>] filename_lookup+0x2b/0xc0
[114651.913384]  [<ffffffff811cf074>] user_path_at_empty+0x54/0x90
[114651.913388]  [<ffffffff810f44d2>] ? from_kgid_munged+0x12/0x20
[114651.913390]  [<ffffffff811c360d>] ? cp_new_stat+0x13d/0x160
[114651.913393]  [<ffffffff811cf0c1>] user_path_at+0x11/0x20
[114651.913395]  [<ffffffff811c31b0>] vfs_fstatat+0x50/0xa0
[114651.913397]  [<ffffffff811c364f>] SYSC_newstat+0x1f/0x40
[114651.913400]  [<ffffffff811c389e>] SyS_newstat+0xe/0x10
[114651.913403]  [<ffffffff8173489d>] system_call_fastpath+0x1a/0x1f
[114651.913432] 
[114651.913433] Restarting tasks ... done.

and the occasional

[46466.515860] INFO: task zeitgeist-datah:4659 blocked for more than 120 seconds.
[46466.515868]       Tainted: P           OX 3.13.0-63-generic #103-Ubuntu
[46466.515870] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[46466.515873] zeitgeist-datah D ffff88033fc33180     0  4659   4142 0x00000004
[46466.515880]  ffff8802d6a05aa8 0000000000000086 ffff8802f3c4c800 ffff8802d6a05fd8
[46466.515886]  0000000000013180 0000000000013180 ffff8802f3c4c800 ffff88032a3bbe28
[46466.515890]  ffff8800b0366000 ffff8802d6a05ad0 ffff88032a3bbf08 ffff88032a3bbe28
[46466.515895] Call Trace:
[46466.515906]  [<ffffffff817280c9>] schedule+0x29/0x70
[46466.515913]  [<ffffffff812add35>] __fuse_request_send+0x115/0x280
[46466.515922]  [<ffffffff810ab390>] ? prepare_to_wait_event+0x100/0x100
[46466.515926]  [<ffffffff812adeb2>] fuse_request_send+0x12/0x20
[46466.515932]  [<ffffffff812b27f4>] fuse_dentry_revalidate+0x194/0x350
[46466.515939]  [<ffffffff811c8fed>] lookup_fast+0x26d/0x2c0
[46466.515944]  [<ffffffff811cabc3>] link_path_walk+0x1a3/0x880
[46466.515949]  [<ffffffff810a543d>] ? enqueue_entity+0x2ad/0xbb0
[46466.515954]  [<ffffffff811cb54b>] path_lookupat+0x5b/0x790
[46466.515960]  [<ffffffff81098499>] ? ttwu_do_wakeup+0x19/0xc0
[46466.515966]  [<ffffffff811a3425>] ? kmem_cache_alloc+0x35/0x1e0
[46466.515971]  [<ffffffff811ce39f>] ? getname_flags+0x4f/0x190
[46466.515976]  [<ffffffff811cbcab>] filename_lookup+0x2b/0xc0
[46466.515981]  [<ffffffff811cf074>] user_path_at_empty+0x54/0x90
[46466.515988]  [<ffffffff810f44d2>] ? from_kgid_munged+0x12/0x20
[46466.515992]  [<ffffffff811c360d>] ? cp_new_stat+0x13d/0x160
[46466.515997]  [<ffffffff811cf0c1>] user_path_at+0x11/0x20
[46466.516001]  [<ffffffff811c31b0>] vfs_fstatat+0x50/0xa0
[46466.516005]  [<ffffffff811c364f>] SYSC_newstat+0x1f/0x40
[46466.516010]  [<ffffffff811c389e>] SyS_newstat+0xe/0x10
[46466.516015]  [<ffffffff8173489d>] system_call_fastpath+0x1a/0x1f

6831104 Oct  6 16:57 activity.sqlite
3271680 Sep 17  2014 activity.sqlite.bck
163840 Oct  7 17:15 activity.sqlite-shm
288943064 Oct  7 17:15 activity.sqlite-wal
322 Nov 10  2013 datasources.pickle
4096 Oct  7 14:03 fts.index

Going to settings and selecting "Clear usage data" and "All time" resulted in no change of file sizes
and no improvement to suspend.  Turning "record file and usage" to "off" left the zeitgeist-datahub running.

A "kill -9" of the datahub process results in no change (the task does
not die)

# ps -F 4659
UID        PID  PPID  C    SZ   RSS PSR STIME TTY      STAT   TIME CMD
xxxxxx  4659  4142  0 105023 11872  1 Oct06 ?        D      0:33 zeitgeist-datahub


See also
http://linuxaria.com/howto/how-to-remove-zeitgeist-in-ubuntu-and-why

** Affects: zeitgeist (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1503930

Title:
  zeitgeist-datahub "Freezing of tasks failed after 20.005 seconds"

Status in zeitgeist package in Ubuntu:
  New

Bug description:
  My system no longer properly goes to sleep.  The logs are filled with
  variants of:

  [114631.282599] PM: Syncing filesystems ... done.
  [114631.328752] PM: Preparing system for mem sleep
  [114631.896631] Freezing user space processes ... 
  [114651.913199] Freezing of tasks failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0):
  [114651.913321] zeitgeist-datah D ffff88033fc33180     0  4659   4142 0x00000004
  [114651.913325]  ffff8802d6a05aa8 0000000000000086 ffff8802f3c4c800 ffff8802d6a05fd8
  [114651.913328]  0000000000013180 0000000000013180 ffff8802f3c4c800 ffff88032a3bbe28
  [114651.913330]  ffff8800b0366000 ffff8802d6a05ad0 ffff88032a3bbf08 ffff88032a3bbe28
  [114651.913333] Call Trace:
  [114651.913340]  [<ffffffff817280c9>] schedule+0x29/0x70
  [114651.913345]  [<ffffffff812add35>] __fuse_request_send+0x115/0x280
  [114651.913350]  [<ffffffff810ab390>] ? prepare_to_wait_event+0x100/0x100
  [114651.913352]  [<ffffffff812adeb2>] fuse_request_send+0x12/0x20
  [114651.913355]  [<ffffffff812b27f4>] fuse_dentry_revalidate+0x194/0x350
  [114651.913360]  [<ffffffff811c8fed>] lookup_fast+0x26d/0x2c0
  [114651.913363]  [<ffffffff811cabc3>] link_path_walk+0x1a3/0x880
  [114651.913365]  [<ffffffff810a543d>] ? enqueue_entity+0x2ad/0xbb0
  [114651.913368]  [<ffffffff811cb54b>] path_lookupat+0x5b/0x790
  [114651.913372]  [<ffffffff81098499>] ? ttwu_do_wakeup+0x19/0xc0
  [114651.913376]  [<ffffffff811a3425>] ? kmem_cache_alloc+0x35/0x1e0
  [114651.913378]  [<ffffffff811ce39f>] ? getname_flags+0x4f/0x190
  [114651.913381]  [<ffffffff811cbcab>] filename_lookup+0x2b/0xc0
  [114651.913384]  [<ffffffff811cf074>] user_path_at_empty+0x54/0x90
  [114651.913388]  [<ffffffff810f44d2>] ? from_kgid_munged+0x12/0x20
  [114651.913390]  [<ffffffff811c360d>] ? cp_new_stat+0x13d/0x160
  [114651.913393]  [<ffffffff811cf0c1>] user_path_at+0x11/0x20
  [114651.913395]  [<ffffffff811c31b0>] vfs_fstatat+0x50/0xa0
  [114651.913397]  [<ffffffff811c364f>] SYSC_newstat+0x1f/0x40
  [114651.913400]  [<ffffffff811c389e>] SyS_newstat+0xe/0x10
  [114651.913403]  [<ffffffff8173489d>] system_call_fastpath+0x1a/0x1f
  [114651.913432] 
  [114651.913433] Restarting tasks ... done.

  and the occasional

  [46466.515860] INFO: task zeitgeist-datah:4659 blocked for more than 120 seconds.
  [46466.515868]       Tainted: P           OX 3.13.0-63-generic #103-Ubuntu
  [46466.515870] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [46466.515873] zeitgeist-datah D ffff88033fc33180     0  4659   4142 0x00000004
  [46466.515880]  ffff8802d6a05aa8 0000000000000086 ffff8802f3c4c800 ffff8802d6a05fd8
  [46466.515886]  0000000000013180 0000000000013180 ffff8802f3c4c800 ffff88032a3bbe28
  [46466.515890]  ffff8800b0366000 ffff8802d6a05ad0 ffff88032a3bbf08 ffff88032a3bbe28
  [46466.515895] Call Trace:
  [46466.515906]  [<ffffffff817280c9>] schedule+0x29/0x70
  [46466.515913]  [<ffffffff812add35>] __fuse_request_send+0x115/0x280
  [46466.515922]  [<ffffffff810ab390>] ? prepare_to_wait_event+0x100/0x100
  [46466.515926]  [<ffffffff812adeb2>] fuse_request_send+0x12/0x20
  [46466.515932]  [<ffffffff812b27f4>] fuse_dentry_revalidate+0x194/0x350
  [46466.515939]  [<ffffffff811c8fed>] lookup_fast+0x26d/0x2c0
  [46466.515944]  [<ffffffff811cabc3>] link_path_walk+0x1a3/0x880
  [46466.515949]  [<ffffffff810a543d>] ? enqueue_entity+0x2ad/0xbb0
  [46466.515954]  [<ffffffff811cb54b>] path_lookupat+0x5b/0x790
  [46466.515960]  [<ffffffff81098499>] ? ttwu_do_wakeup+0x19/0xc0
  [46466.515966]  [<ffffffff811a3425>] ? kmem_cache_alloc+0x35/0x1e0
  [46466.515971]  [<ffffffff811ce39f>] ? getname_flags+0x4f/0x190
  [46466.515976]  [<ffffffff811cbcab>] filename_lookup+0x2b/0xc0
  [46466.515981]  [<ffffffff811cf074>] user_path_at_empty+0x54/0x90
  [46466.515988]  [<ffffffff810f44d2>] ? from_kgid_munged+0x12/0x20
  [46466.515992]  [<ffffffff811c360d>] ? cp_new_stat+0x13d/0x160
  [46466.515997]  [<ffffffff811cf0c1>] user_path_at+0x11/0x20
  [46466.516001]  [<ffffffff811c31b0>] vfs_fstatat+0x50/0xa0
  [46466.516005]  [<ffffffff811c364f>] SYSC_newstat+0x1f/0x40
  [46466.516010]  [<ffffffff811c389e>] SyS_newstat+0xe/0x10
  [46466.516015]  [<ffffffff8173489d>] system_call_fastpath+0x1a/0x1f

  6831104 Oct  6 16:57 activity.sqlite
  3271680 Sep 17  2014 activity.sqlite.bck
  163840 Oct  7 17:15 activity.sqlite-shm
  288943064 Oct  7 17:15 activity.sqlite-wal
  322 Nov 10  2013 datasources.pickle
  4096 Oct  7 14:03 fts.index

  Going to settings and selecting "Clear usage data" and "All time" resulted in no change of file sizes
  and no improvement to suspend.  Turning "record file and usage" to "off" left the zeitgeist-datahub running.

  A "kill -9" of the datahub process results in no change (the task does
  not die)

  # ps -F 4659
  UID        PID  PPID  C    SZ   RSS PSR STIME TTY      STAT   TIME CMD
  xxxxxx  4659  4142  0 105023 11872  1 Oct06 ?        D      0:33 zeitgeist-datahub


  See also
  http://linuxaria.com/howto/how-to-remove-zeitgeist-in-ubuntu-and-why

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zeitgeist/+bug/1503930/+subscriptions
Follow ups

[Bug 1503930] Re: zeitgeist-datahub "Freezing of tasks failed after 20.005 seconds"
From: Launchpad Bug Tracker, 2021-07-28
[Bug 1503930] Re: zeitgeist-datahub "Freezing of tasks failed after 20.005 seconds"
From: Bryce Nesbitt, 2015-12-24