Bug 472760 - large number division produces floating-point assist faults on ia64
Summary: large number division produces floating-point assist faults on ia64
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: python
Version: 5.3
Hardware: ia64
OS: Linux
medium
medium
Target Milestone: rc
: ---
Assignee: Dave Malcolm
QA Contact: BaseOS QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-11-24 12:51 UTC by Petr Šplíchal
Modified: 2013-03-14 21:36 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-03-14 21:36:13 UTC
Target Upstream Version:
Embargoed:


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Description Petr Šplíchal 2008-11-24 12:51:44 UTC
Description of problem:
test_long_future.py (one of the python unit tests) produces floating-point assist faults on ia64 architecture.

Version-Release number of selected component (if applicable):
python-2.4.3-21.el5
python-2.4.3-24.el5

How reproducible:
Always

Steps to Reproduce:
from __future__ import division
huge = 1L << 40000
1L / huge
  
Actual results:
/var/log/messages: kernel: python(9903):
floating-point assist fault at ip 20000000003cd542, isr 0000020000001001

Expected results:
no floating-point assist faults

Additional info:
It seems that future implementation of division in python will need some adjustment to work on ia64 flawlessly.

For detailed description of FPA faults see:
http://i-cluster2.inrialpes.fr/doc/misc/fpswa.txt

Comment 2 RHEL Program Management 2009-03-26 17:22:08 UTC
This request was evaluated by Red Hat Product Management for
inclusion, but this component is not scheduled to be updated in
the current Red Hat Enterprise Linux release. If you would like
this request to be reviewed for the next minor release, ask your
support representative to set the next rhel-x.y flag to "?".

Comment 5 RHEL Program Management 2013-03-14 21:36:13 UTC
Development Management has reviewed and declined this request.
You may appeal this decision by reopening this request.


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