Opened 9 years ago

Closed 9 years ago

#12918 closed defect (duplicate)

segmentation fault with multivariate polynomial factorization

Reported by: zimmerma Owned by: tbd
Priority: major Milestone: sage-duplicate/invalid/wontfix
Component: factorization Keywords:
Cc: Merged in:
Authors: Reviewers: Jeroen Demeyer
Report Upstream: Fixed upstream, in a later stable release. Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Status badges

Description

with Sage 4.8 I get:

sage: U.<x,y> = GF(2)[]  
sage: factor(x^6 + y^5 + x^5 + y^4,proof=False)
/usr/local/sage-4.8-linux-64bit-ubuntu_10.04.3_lts-x86_64-Linux/local/lib/libcsage.so(print_backtrace+0x31)[0x2b670685e3a3]
...

------------------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred in Sage.
This probably occurred because a *compiled* component of Sage has a bug
in it and is not properly wrapped with sig_on(), sig_off(). You might
want to run Sage under gdb with 'sage -gdb' to debug this.
Sage will now terminate.
------------------------------------------------------------------------
local/bin/sage-sage: line 303:  7365 Segmentation fault      sage-ipython "$@" -i

Change History (7)

comment:1 Changed 9 years ago by zimmerma

  • Report Upstream changed from N/A to Reported upstream. Little or no feedback.

comment:2 Changed 9 years ago by zimmerma

  • Report Upstream changed from Reported upstream. Little or no feedback. to Fixed upstream, in a later stable release.

fixed upstream. I asked if they plan a new release of Singular soon.

Paul

comment:3 Changed 9 years ago by zimmerma

answer from the Singular developers: There will be a minor release 3-1-4-3 next week.

Paul

comment:4 Changed 9 years ago by zimmerma

here is another test case which Seg. faults with Sage 5.0:

sage: U.<tt,xx> = GF(2)[]
sage: factor(xx^6 + tt^5 + tt^4 + tt*xx^3,proof=False)
...
Unhandled SIGSEGV: A segmentation fault occurred in Sage.

Paul

comment:5 Changed 9 years ago by jdemeyer

  • Milestone changed from sage-5.3 to sage-duplicate/invalid/wontfix
  • Reviewers set to Jeroen Demeyer
  • Status changed from new to needs_review

Fixed by #13237.

comment:6 Changed 9 years ago by jdemeyer

  • Status changed from needs_review to positive_review

comment:7 Changed 9 years ago by jdemeyer

  • Resolution set to duplicate
  • Status changed from positive_review to closed
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