Ubuntu
terminator package

terminator crashed with SIGSEGV in PyEval_EvalFrameEx()

Bug #951236 reported by Terry on 2012-03-09

This bug affects 8 people

	Status	Importance	Assigned to
Terminator	Fix Released	Undecided	Unassigned
terminator (Ubuntu)	Fix Released	High	Unassigned
Precise	Fix Released	High	Unassigned
Quantal	Won't Fix	High	Unassigned
Raring	Won't Fix	High	Unassigned

Bug Description

[Impact]
Segfaults the application when repositioning windows, taking any unsaved content with it. :-)

[Test Case]
Drag a window to a new horizontal position within another window. Only seems to work with at least 4 windows (2x2). Reproducible every time if dragged to top position of a window and to bottom position of same window without releasing it. Or just dragging a window around randomly :)

[Regression Potential]
Probably none. The patch only affects dragging functionality, so might affect behavior there, but even in such a case eliminating the crash would be worth it!

[Original Report]
$ lsb_release -rd
Description: Ubuntu precise (development branch)
Release: 12.04

$ apt-cache policy terminator
terminator:
  Installed: 0.96-0ubuntu1
  Candidate: 0.96-0ubuntu1
  Version table:
*** 0.96-0ubuntu1 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: terminator 0.96-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
ApportVersion: 1.94.1-0ubuntu1
Architecture: amd64
Date: Fri Mar 9 23:30:49 2012
Disassembly: => 0x0: Cannot access memory at address 0x0
EcryptfsInUse: Yes
ExecutablePath: /usr/share/terminator/terminator
InstallationMedia: Lubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/terminator
ProcEnviron:
LANGUAGE=en_GB:en
LANG=en_GB.UTF-8
SHELL=/bin/bash
SegvAnalysis:
Segfault happened at: 0x0: Cannot access memory at address 0x0
PC (0x00000000) not located in a known VMA region (needed executable region)!
SegvReason: executing NULL VMA
Signal: 11
SourcePackage: terminator
StacktraceTop:
?? ()
PyEval_EvalFrameEx ()
PyEval_EvalCodeEx ()
?? ()
PyObject_Call ()
Title: terminator crashed with SIGSEGV in PyEval_EvalFrameEx()
UpgradeStatus: Upgraded to precise on 2012-01-08 (61 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

See original description

Tags:

Revision history for this message

Terry (terry-kryogenic) wrote on 2012-03-09:

Dependencies.txt Edit (4.4 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (67.7 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (820 bytes, text/plain; charset="utf-8")
Registers.txt Edit (710 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (2.9 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (3.9 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-09:

StacktraceTop:
?? ()
PyEval_EvalFrameEx ()
PyEval_EvalCodeEx ()
function_call ()
PyObject_Call ()

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-09: Stacktrace.txt

Stacktrace.txt Edit (8.9 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2012-03-09: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (11.1 KiB, text/plain)

Changed in terminator (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-04-28:

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

Changed in terminator (Ubuntu):
status:	New → Confirmed

Bryce Harrington (bryce) on 2012-04-28

visibility:

private → public

Revision history for this message

Bryce Harrington (bryce) wrote on 2012-04-28:

ThreadStacktrace Edit (6.9 KiB, text/plain)

Got a similar crash just now. Also was repositioning windows, it locked up and crashed. Stacktrace is slightly different but same general theme.

Segfault happened at: 0x1: Cannot access memory at address 0x1
PC (0x00000001) not located in a known VMA region (needed executable
region)!

Changed in terminator (Ubuntu):
importance:	Medium → High
status:	Confirmed → Triaged

Revision history for this message

Terry (terry-kryogenic) wrote on 2012-04-28:

I didn't think that Python being a high level language should segfault caused by a bug in a Python script? Especially where something as low level as VMA is concerned. If this isn't the case then I would love to know. Just a thought anyway.

Revision history for this message

Chris Jones (cmsj) wrote on 2013-01-30:

I believe I have fixed the terminal dragging crasher in trunk.

Changed in terminator:
status:	New → Fix Committed

Revision history for this message

Vincent Fortier (th0ma7) wrote on 2013-01-30:

Great! Will the fix be backported to LTS ? thnx btw!

Chris Jones (cmsj) on 2013-04-30

Changed in terminator:
status:	Fix Committed → Fix Released

Revision history for this message

Bryce Harrington (bryce) wrote on 2013-09-12:

#10

The crash is not present in saucy's terminator. I performed a bisection search to isolate r1357 as the fix. I can fairly easily crash r1356, but could not repro the crash in r1357 or newer.

r1357 indicates it is a fix for upstream bug #1089190, which seems to describe this same problem.

Changed in terminator (Ubuntu):
status:	Triaged → Fix Released
Changed in terminator (Ubuntu Precise):
status:	New → In Progress
Changed in terminator (Ubuntu Quantal):
status:	New → In Progress
Changed in terminator (Ubuntu Raring):
status:	New → In Progress
Changed in terminator (Ubuntu Quantal):
importance:	Undecided → High
Changed in terminator (Ubuntu Raring):
importance:	Undecided → High
Changed in terminator (Ubuntu Precise):
importance:	Undecided → High

Bryce Harrington (bryce) on 2013-09-12

description:

updated

Revision history for this message

Bryce Harrington (bryce) wrote on 2013-09-12:

#11

Uploaded patch to precise, quantal, and raring.

Changed in terminator (Ubuntu Precise):
status:	In Progress → Fix Committed
Changed in terminator (Ubuntu Quantal):
status:	In Progress → Fix Committed
Changed in terminator (Ubuntu Raring):
status:	In Progress → Fix Committed

Revision history for this message

Brian Murray (brian-murray) wrote on 2013-09-19: Please test proposed package

#12

Hello Terry, or anyone else affected,

Accepted terminator into raring-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/terminator/0.96-2ubuntu0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

tags:

added: verification-needed

Revision history for this message

Brian Murray (brian-murray) wrote on 2013-09-20:

#13

Hello Terry, or anyone else affected,

Accepted terminator into quantal-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/terminator/0.96-0ubuntu1.1 in a few hours, and then in the -proposed repository.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Revision history for this message

Brian Murray (brian-murray) wrote on 2013-09-23:

#14

Hello Terry, or anyone else affected,

Accepted terminator into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/terminator/0.96-0ubuntu1.0.1 in a few hours, and then in the -proposed repository.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Simon Déziel (sdeziel) on 2013-09-23

tags:

added: verification-done-precise

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-01-24:

#15

This bug was fixed in the package terminator - 0.96-0ubuntu1.0.1

---------------
terminator (0.96-0ubuntu1.0.1) precise-proposed; urgency=low

  * Add drag_crash.patch: Cherrypicked patch (rev 1357), "Extra guarding
    against crashy gtk functions", to fix crash when dragging a terminal
    window to a new horizontal position within another window.
    (LP: #951236)
-- Bryce Harrington <email address hidden> Wed, 11 Sep 2013 18:42:37 -0700

Changed in terminator (Ubuntu Precise):
status:	Fix Committed → Fix Released

Bryce Harrington (bryce) on 2014-10-30

tags:	added: verification-done-quantal verification-done-raring
tags:	removed: verification-needed

Revision history for this message

Rolf Leggewie (r0lf) wrote on 2014-12-03:

#16

quantal has seen the end of its life and is no longer receiving any updates. Marking the quantal task for this ticket as "Won't Fix".

Changed in terminator (Ubuntu Quantal):
status:	Fix Committed → Won't Fix

Revision history for this message

Rolf Leggewie (r0lf) wrote on 2014-12-05:

#17

raring has seen the end of its life and is no longer receiving any updates. Marking the raring task for this ticket as "Won't Fix".

Changed in terminator (Ubuntu Raring):
status:	Fix Committed → Won't Fix

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terminator crashed with SIGSEGV in PyEval_EvalFrameEx()

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