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[Joel <joel@xxxxxxxxxxx>]

Not here, still seeing the same problem, and not just with vsftpd:

No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.04 LTS
Release:	14.04
Codename:	trusty

Linux ip-10-0-0-46 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux


Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615216] BUG: Bad page map in process vsftpd  pte:8000000000000965 pmd:031b1067
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615228] page:ffffea0000000000 count:-34 mapcount:-34 mapping:          (null) index:0x0
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615232] page flags: 0x14(referenced|dirty)
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615237] addr:00007fd10f153000 vm_flags:08100071 anon_vma:ffff88000314d8c0 mapping:          (null) index:7fd10f153
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615242] CPU: 0 PID: 1927 Comm: vsftpd Tainted: G    B        3.13.0-27-generic #50-Ubuntu
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615244]  ffff8800e86b8540 ffff880003387c70 ffffffff817199c4 00007fd10f153000
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615247]  ffff880003387cb8 ffffffff81174503 8000001c689fe965 00000007fd10f153
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615248]  ffff8800031b1a98 ffffea0000000000 00007fd10f153000 00007fd10f154000
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615250] Call Trace:
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615256]  [<ffffffff817199c4>] dump_stack+0x45/0x56
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615260]  [<ffffffff81174503>] print_bad_pte+0x1a3/0x250
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615262]  [<ffffffff81175ee7>] unmap_page_range+0x717/0x7f0
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615264]  [<ffffffff81176041>] unmap_single_vma+0x81/0xf0
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615266]  [<ffffffff811770b9>] unmap_vmas+0x49/0x90
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615268]  [<ffffffff8118026c>] exit_mmap+0x9c/0x170
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615270]  [<ffffffff8106482c>] mmput+0x5c/0x120
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615273]  [<ffffffff81069bbc>] do_exit+0x26c/0xa50
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615275]  [<ffffffff8109dd84>] ? vtime_account_user+0x54/0x60
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615279]  [<ffffffff8114d51f>] ? context_tracking_user_exit+0x4f/0xc0
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615280]  [<ffffffff8106a41f>] do_group_exit+0x3f/0xa0
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615282]  [<ffffffff8106a494>] SyS_exit_group+0x14/0x20
Jun  4 07:35:05 ip-10-0-0-46 kernel: [  217.615285]  [<ffffffff8172a5bf>] tracesys+0xe1/0xe6

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https://bugs.launchpad.net/bugs/1313450

Title:
  Unable to start vsftpd on Ubuntu 14.04 (Amazon/EC2 or Xen) with
  default configuration

Status in “linux” package in Ubuntu:
  Confirmed
Status in “vsftpd” package in Ubuntu:
  Invalid
Status in “linux” source package in Trusty:
  Confirmed
Status in “vsftpd” source package in Trusty:
  Invalid

Bug description:
  The configuration submitted was modified during testing, but this also
  failed with the default configuration. The only solution I have found
  so far was to delete the configuration, this would allow the service
  to start, but obviously not work as intended.

  If I try to start the service manually using vsftpd or sudo vsftpd I receive the following error message:
  500 OOPS: munmap

  I also tried the default commands
  /etc/init.d/vsftpd or service vsftpd start

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: vsftpd 3.0.2-1ubuntu2
  ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  Date: Sun Apr 27 21:23:18 2014
  Ec2AMI: ami-896c96fe
  Ec2AMIManifest: (unknown)
  Ec2AvailabilityZone: eu-west-1b
  Ec2InstanceType: t1.micro
  Ec2Kernel: aki-52a34525
  Ec2Ramdisk: unavailable
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: vsftpd
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.vsftpd.conf: [modified]
  mtime.conffile..etc.vsftpd.conf: 2014-04-27T21:16:28.222467
  --- 
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  DistroRelease: Ubuntu 14.04
  Ec2AMI: ami-896c96fe
  Ec2AMIManifest: (unknown)
  Ec2AvailabilityZone: eu-west-1b
  Ec2InstanceType: t1.micro
  Ec2Kernel: aki-52a34525
  Ec2Ramdisk: unavailable
  Package: vsftpd 3.0.2-1ubuntu2
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9
  Tags:  trusty ec2-images
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
  _MarkForUpload: True
  modified.conffile..etc.vsftpd.conf: [modified]
  mtime.conffile..etc.vsftpd.conf: 2014-04-29T19:03:28.834467

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