touch-packages team mailing list archive

[Seth Arnold <1446448@xxxxxxxxxxxxxxxxxx>]

Brendan Gregg has an awesome execsnoop tool that can report systemwide
execs in his perf-tools package, the whole thing is a goldmine of
amazing tools:

http://www.brendangregg.com/blog/2014-07-28/execsnoop-for-linux.html

Probably this is easier than the process accounting.

Thanks

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https://bugs.launchpad.net/bugs/1446448

Title:
  ssh-agent terminates

Status in openssh package in Ubuntu:
  Incomplete

Bug description:
  I have set-up password less ssh connectivity for my workstation.  ssh-
  agent gets started via keychain when fluxbox boots.

  When I use ssh to connect to a server, and then use scp to shuffle a
  file from that server to my workstation the ssh-agent on my
  workstation dies after the file was transferred.

  This has started happening after the upgrade  from 12.04 to 14.04.

  I have wrapped strace into the fluxbox startup to keep an eye on ssh-
  agent (I initially didn't see a pattern to the sudden death), here's
  an example of the breakdown post transfer.

  select(4, [3], [], NULL, NULL)          = 1 (in [3])
  accept(3, {sa_family=AF_LOCAL, NULL}, [2]) = 4
  getsockopt(4, SOL_SOCKET, SO_PEERCRED, {pid=21130, uid=1000, gid=1000}, [12]) = 0
  getuid()                                = 1000
  fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR)
  fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
  select(5, [3 4], [], NULL, NULL)        = 1 (in [4])
  read(4, "\0\0\0\1\v", 1024)             = 5
  select(5, [3 4], [4], NULL, NULL)       = 1 (out [4])
  write(4, "\0\0\1<\f\0\0\0\1\0\0\1\27\0\0\0\7ssh-rsa\0\0\0\3\1\0\1\0"..., 320) = 320
  select(5, [3 4], [], NULL, NULL)        = 1 (in [4])
  read(4, "", 1024)                       = 0
  close(4)                                = 0
  select(4, [3], [], NULL, NULL)          = 1 (in [3])
  accept(3, {sa_family=AF_LOCAL, NULL}, [2]) = 4
  getsockopt(4, SOL_SOCKET, SO_PEERCRED, {pid=21284, uid=1000, gid=1000}, [12]) = 0
  getuid()                                = 1000
  fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR)
  fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
  select(5, [3 4], [], NULL, NULL)        = 1 (in [4])
  read(4, "", 1024)                       = 0
  close(4)                                = 0
  select(4, [3], [], NULL, NULL)          = ? ERESTARTNOHAND (To be restarted if no handler)
  --- SIGTERM {si_signo=SIGTERM, si_code=SI_USER, si_pid=21284, si_uid=0} ---
  unlink("/tmp/ssh-DEwJJTGLUETC/agent.19556") = 0
  rmdir("/tmp/ssh-DEwJJTGLUETC")          = 0
  close(-1)                               = -1 EBADF (Bad file descriptor)
  exit_group(2)                           = ?
  +++ exited with 2 +++


  1) lsb_release -rd
  Description:    Ubuntu 14.04.2 LTS
  Release:        14.04

  
  2) apt-cache policy openssh-client
  openssh-client:
    Installed: 1:6.6p1-2ubuntu2
    Candidate: 1:6.6p1-2ubuntu2
    Version table:
   *** 1:6.6p1-2ubuntu2 0
          500 http://nz.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:6.6p1-2ubuntu1 0
          500 http://nz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

  3) I expect ssh-agent to carry on running as it did in previous
  releases.

  4) It dies when connecting back from a machine I ssh into to my
  workstation.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: openssh-client 1:6.6p1-2ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-49.81-generic 3.13.11-ckt17
  Uname: Linux 3.13.0-49-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  Date: Tue Apr 21 15:28:02 2015
  InstallationDate: Installed on 2015-02-03 (77 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  RelatedPackageVersions:
   ssh-askpass       N/A
   libpam-ssh        2.0-1
   keychain          2.7.1-1
   ssh-askpass-gnome 1:6.6p1-2ubuntu2
  SSHClientVersion: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2, OpenSSL 1.0.1f 6 Jan 2014
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)
  upstart.ssh-agent.log: ssh-agent stop/pre-start, process 1973

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