Bug 714805

Summary: [abrt] system-config-printer-1.2.8-1.fc14: assign_version_tag: Process /usr/bin/python was killed by signal 11 (SIGSEGV)
Product: [Fedora] Fedora Reporter: Shane Kerr <shane>
Component: system-config-printerAssignee: Tim Waugh <twaugh>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 14CC: jpopelka, twaugh
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:f5225ad0d9e245dcab4221860e590417c92e5002
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-06-21 09:52:54 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Flags
File: backtrace none

Description Shane Kerr 2011-06-20 20:15:14 UTC 
abrt version: 1.1.18
architecture: x86_64
Attached file: backtrace, 36948 bytes
cmdline: /usr/bin/python /usr/share/system-config-printer/applet.py
component: system-config-printer
Attached file: coredump, 14184448 bytes
crash_function: assign_version_tag
executable: /usr/bin/python
kernel: 2.6.35.13-92.fc14.x86_64
package: system-config-printer-1.2.8-1.fc14
rating: 4
reason: Process /usr/bin/python was killed by signal 11 (SIGSEGV)
release: Fedora release 14 (Laughlin)
time: 1308599071
uid: 500

How to reproduce
-----
1. Walked away from the computer
2. Printer thingy had apparently crashed in my absence
3.
Comment 1 Shane Kerr 2011-06-20 20:15:17 UTC 
Created attachment 505689 [details]
File: backtrace
Comment 2 Tim Waugh 2011-06-21 09:52:54 UTC 
Look at the value of 'type' as it is passed to a nested function:

#0  assign_version_tag (type=0x90007faf3e37ba40) at
                             ~~~~~~
/usr/src/debug/Python-2.7/Objects/typeobject.c:152
        i = <value optimized out>
        n = <value optimized out>
        bases = <value optimized out>
        __PRETTY_FUNCTION__ = "assign_version_tag"
#1  0x00000039faea48c3 in _PyType_Lookup (type=0xb0007faf3e37ba40, 
                                               ~~~~~~
name='get_interface') at /usr/src/debug/Python-2.7/Objects/typeobject.c:2494
        i = <value optimized out>
        n = 3
        mro = (<type at remote 0x7faf3e37ba40>, <type at remote 0x7faf3e37b3c0>, <type at remote 0x39fb1a2a00>)
        res = <value optimized out>
        base = <value optimized out>
        dict = <value optimized out>
        h = <value optimized out>
        __PRETTY_FUNCTION__ = "_PyType_Lookup"

The difference between the two addresses is a single binary digit (0x9 == 1001b, 0xb = 1011b).  Looks very much like a result of faulty memory...