[Bug 1303649] Re: systemd-logind high cpu consumption

[James Page]

#0  0x00007fad4e680700 in __write_nocancel () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fad4efbe377 in nih_main_loop_interrupt () from /lib/x86_64-linux-gnu/libnih.so.1
No symbol table info available.
#2  0x00007fad4eb8464b in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#3  0x00007fad4eb84f8e in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#4  0x00007fad4eb85626 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#5  0x00007fad4eb843ff in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#6  0x00007fad4eb6e9dc in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#7  0x00007fad4eb6f389 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#8  0x00007fad4eb6f94d in dbus_connection_send_with_reply_and_block () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#9  0x00007fad4f1d0a85 in cgmanager_ping_sync () from /lib/x86_64-linux-gnu/libcgmanager.so.0
No symbol table info available.
#10 0x00000000004223a3 in ?? ()
No symbol table info available.
#11 0x000000000041647f in ?? ()
No symbol table info available.
#12 0x000000000041655d in ?? ()
No symbol table info available.
#13 0x000000000040f3ed in ?? ()
No symbol table info available.
#14 0x00000000004107dc in ?? ()
No symbol table info available.
#15 0x000000000040c4d3 in ?? ()
No symbol table info available.
#16 0x00007fad4eb7de26 in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#17 0x00007fad4eb70a01 in dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#18 0x0000000000409467 in ?? ()
No symbol table info available.
#19 0x000000000040622c in ?? ()
No symbol table info available.
#20 0x00007fad4e5b5ec5 in __libc_start_main (main=0x4060d0, argc=1, argv=0x7fff596b4ca8, init=<optimised out>, fini=<optimised out>, 
    rtld_fini=<optimised out>, stack_end=0x7fff596b4c98) at libc-start.c:287
        result = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5644452072334886061, 4219731, 140734693592224, 0, 0, -5644226841702234963, -5688182704516430675}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fff596b4cb8, 0x7fad5004c1c8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1500204216}}}
        not_first_call = <optimised out>
#21 0x000000000040637c in ?? ()
No symbol table info available.

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https://bugs.launchpad.net/bugs/1303649

Title:
  systemd-logind spins in cgmanager_ping_sync()

Status in “systemd” package in Ubuntu:
  New

Bug description:
  systemd-logind is consuming a high level of cpu on a continual basis:

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                
    676 root      20   0   43644   2144   1568 R 100.0  0.0  74:43.77 systemd-logind

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: systemd-services 204-5ubuntu17
  ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
  Uname: Linux 3.13.0-22-generic x86_64
  ApportVersion: 2.14.1-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Apr  7 09:09:37 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-04-23 (348 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423)
  SourcePackage: systemd
  UpgradeStatus: Upgraded to trusty on 2013-11-11 (146 days ago)

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