Ubuntu
python-cups package

system-config-printer.py crashed with SIGSEGV in __GI_fileno()

Bug #951001 reported by M0Rph3U5 on 2012-03-09

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	python-cups (Ubuntu)	Fix Released	Medium	Unassigned	Ubuntu ubuntu-12.04-beta-2

Bug Description

I get this error on 12.04 beta (fresh installed).

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: system-config-printer-gnome 1.3.8+20120201-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu1
Architecture: amd64
CupsErrorLog:

Date: Fri Mar 9 18:17:36 2012
ExecutablePath: /usr/share/system-config-printer/system-config-printer.py
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
InterpreterPath: /usr/bin/python2.7
Lpstat: Error: command ['lpstat', '-v'] failed with exit code 1: lpstat: No destinations added.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
PackageArchitecture: all
Papersize: a4
ProcCmdline: /usr/bin/python /usr/share/system-config-printer/system-config-printer.py
ProcEnviron:
PATH=(custom, no user)
LANG=hu_HU.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-17-generic root=UUID=3b3f6d68-7bc0-4284-beae-e7a4d52b8350 ro quiet splash vt.handoff=7
SegvAnalysis:
Segfault happened at: 0x7f80893bb010 <fileno_unlocked>: mov (%rdi),%eax
PC (0x7f80893bb010) ok
source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: system-config-printer
StacktraceTop:
fileno_unlocked () from /lib/x86_64-linux-gnu/libc.so.6
?? () from /usr/lib/python2.7/dist-packages/cups.so
?? ()
PyObject_Call ()
PyEval_EvalFrameEx ()
Title: system-config-printer.py crashed with SIGSEGV in fileno_unlocked()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 02/23/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.00
dmi.board.name: G31M-VS2
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.00:bd02/23/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnG31M-VS2:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.

Tags:

Related branches

lp:ubuntu/quantal/python-cups

Revision history for this message

M0Rph3U5 (themorpheus) wrote on 2012-03-09:

BootDmesg.txt Edit (50.8 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (20.2 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.9 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (827 bytes, text/plain; charset="utf-8")
Locale.txt Edit (327 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (11.1 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (569 bytes, text/plain; charset="utf-8")
PrintingPackages.txt Edit (1.1 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (74.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (3.3 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (819 bytes, text/plain; charset="utf-8")
Registers.txt Edit (816 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (4.9 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (6.8 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (131.9 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (249.6 KiB, text/plain; charset="utf-8")

Revision history for this message

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

StacktraceTop:
__GI_fileno (fp=0x0) at fileno.c:37
PPD_dealloc (self=0x7f805dbac090) at cupsppd.c:239
type_call ()
PyObject_Call ()
PyEval_EvalFrameEx ()

Revision history for this message

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

Stacktrace.txt Edit (12.4 KiB, text/plain)

Revision history for this message

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

ThreadStacktrace.txt Edit (17.1 KiB, text/plain)

Changed in system-config-printer (Ubuntu):
importance:	Undecided → Medium
summary:	- system-config-printer.py crashed with SIGSEGV in fileno_unlocked() + system-config-printer.py crashed with SIGSEGV in __GI_fileno()
tags:	removed: need-amd64-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-18:

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

Changed in system-config-printer (Ubuntu):
status:	New → Confirmed

Till Kamppeter (till-kamppeter) on 2012-03-18

visibility:

private → public

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-22:

Missing NULL check in the pycups library.

affects:	system-config-printer (Ubuntu) → python-cups (Ubuntu)
Changed in python-cups (Ubuntu):
milestone:	none → ubuntu-12.04-beta-2
status:	Confirmed → In Progress

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-22:

cupsppd-ppd-dealloc-null-check.patch Edit (450 bytes, text/plain)

Tim, there is a debug output not protected by NULL checks in the PPD_dealloc() function in cupsppd.c. Can you apply my patch upstream? Thanks.

Revision history for this message

Till Kamppeter (till-kamppeter) wrote on 2012-03-22:

Fixed in python-cups 1.9.61-0ubuntu2:

python-cups (1.9.61-0ubuntu2) precise; urgency=low

  * debian/patches/cupsppd-ppd-dealloc-null-check.patch: Added NULL check
    to the PPD_dealloc() function in cupsppd.c.
  * debian/source/format: Set format 3.0/quilt.