recoverable_problem crashed with ValueError in add_proc_info(): invalid process

Bug #1345569 reported by Lukasz Grzesik on 2014-07-20
This bug affects 2 people
Affects Status Importance Assigned to Milestone
apport (Ubuntu)
Brian Murray

Bug Description

Well, I'm not a system engineer and I haven't knowlegde why that trouble happen here.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: apport 2.14.4-0ubuntu2
Uname: Linux 3.16.0-031600rc4-generic x86_64
ApportVersion: 2.14.4-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Jul 20 13:54:54 2014
ExecutablePath: /usr/share/apport/recoverable_problem
InstallationDate: Installed on 2014-07-05 (15 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140520)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/share/apport/recoverable_problem -p 14110
 PATH=(custom, no user)
PythonArgs: ['/usr/share/apport/recoverable_problem', '-p', '14110']
SourcePackage: apport
Title: recoverable_problem crashed with ValueError in add_proc_info(): invalid process
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

Lukasz Grzesik (qnebra) wrote :
tags: removed: need-duplicate-check
Changed in apport (Ubuntu):
importance: Undecided → Medium
Sebastien Bacher (seb128) wrote :

that's ranked 4 on the e.u.c weekly reports for 14.10, setting as high

information type: Private → Public
Changed in apport (Ubuntu):
importance: Medium → High
Sebastien Bacher (seb128) wrote :

Martin, could you have a look?

Changed in apport (Ubuntu):
assignee: nobody → Martin Pitt (pitti)
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in apport (Ubuntu):
status: New → Confirmed
Brian Murray (brian-murray) wrote :

This is fixed in trunk but hasn't landed in Utopic yet.

 $ bzr log -r2858.1.1 -p
revno: 2858.1.1
committer: Evan Dandrea <email address hidden>
branch nick: handle-disappearing-processes
timestamp: Mon 2014-09-22 15:45:54 +0100
  Handle the parent process going away while we're attempting to read from proc.
=== modified file 'data/recoverable_problem'
--- data/recoverable_problem 2014-05-14 20:58:42 +0000
+++ data/recoverable_problem 2014-09-22 14:45:54 +0000
@@ -37,7 +37,13 @@ = os.getppid()

     # Grab PID info right away, as we don't know how long it'll stick around
- report.add_proc_info(
+ try:
+ report.add_proc_info(
+ except ValueError as e:
+ # The process may have gone away before we could get to it.
+ if e.message == 'invalid process':
+ return

     # Get the info on the bug
     items ='\0')

Changed in apport (Ubuntu):
assignee: Martin Pitt (pitti) → Brian Murray (brian-murray)
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package apport - 2.14.7-0ubuntu5

apport (2.14.7-0ubuntu5) utopic; urgency=medium

  [ Evan Dandrea]
  * data/recoverable_problem: Handle the parent process going away while
    we're attempting to read from proc. (LP: #1345569)
 -- Brian Murray <email address hidden> Tue, 07 Oct 2014 15:26:30 -0700

Changed in apport (Ubuntu):
status: Confirmed → Fix Released
Steve Langasek (vorlon) wrote :
Changed in apport (Ubuntu):
status: Fix Released → Triaged
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package apport - 2.14.7-0ubuntu6

apport (2.14.7-0ubuntu6) utopic; urgency=medium

  * data/recoverable_problem: Fix a Traceback with how the ValueError was
    matched. (LP: #1345569)
 -- Brian Murray <email address hidden> Mon, 13 Oct 2014 10:02:21 -0700

Changed in apport (Ubuntu):
status: Triaged → Fix Released
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