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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1503930 Title: zeitgeist-datahub "Freezing of tasks failed after 20.005 seconds" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zeitgeist/+bug/1503930/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
