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[Ren�alendy <rene@xxxxxxxxxxx>]

Public bug reported:

After unmounting a dropped sftp connection, gvfsd-sftp crashes.

Steps to reproduce the error:
1) connect to LAN
2) use gvfs-mount to mount an sftp server
3) disconnect LAN -> the sftp connection is now interrupted
4) unmount the sftp server via gvfs-mount -u
5) unmount will succeed but gvfsd-sftp will crash soon after issuing the unmount command.
6) the sftp mounting functionality does not seem to be affected, but gvfsd should better not crash if it cannot cleanly shutdown the connection because it got dropped.


Summing up, gvfsd-sftp should have a way to handle broken connections. If it cannot disconnect from the server by cleanly terminating the connection, the connection should be silently dropped.


Using nautilus as GUI, more problems occur (nautilus freezes): see bug #1361846

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gvfs-backends 1.20.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Nov  3 20:12:49 2014
InstallationDate: Installed on 2013-10-10 (389 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gvfs
UpgradeStatus: Upgraded to trusty on 2014-04-18 (198 days ago)

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


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1388951

Title:
  gvfsd-sftp crashed with SIGABRT when unmounting dropped sftp
  connection

Status in “gvfs” package in Ubuntu:
  New

Bug description:
  After unmounting a dropped sftp connection, gvfsd-sftp crashes.

  Steps to reproduce the error:
  1) connect to LAN
  2) use gvfs-mount to mount an sftp server
  3) disconnect LAN -> the sftp connection is now interrupted
  4) unmount the sftp server via gvfs-mount -u
  5) unmount will succeed but gvfsd-sftp will crash soon after issuing the unmount command.
  6) the sftp mounting functionality does not seem to be affected, but gvfsd should better not crash if it cannot cleanly shutdown the connection because it got dropped.

  
  Summing up, gvfsd-sftp should have a way to handle broken connections. If it cannot disconnect from the server by cleanly terminating the connection, the connection should be silently dropped.

  
  Using nautilus as GUI, more problems occur (nautilus freezes): see bug #1361846

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: gvfs-backends 1.20.1-1ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
  Uname: Linux 3.13.0-39-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Nov  3 20:12:49 2014
  InstallationDate: Installed on 2013-10-10 (389 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  ProcEnviron:
   LANGUAGE=de_DE
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: gvfs
  UpgradeStatus: Upgraded to trusty on 2014-04-18 (198 days ago)

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