id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,work_issues,upstream,reviewer,author,merged,dependencies,stopgaps
12413,Sage crashes in matrix/vector multiplication with zero extents,JStarx,"jason, was","The following crashes Sage 4.8 on OS X 10.6.8 with a mysterious message:

{{{
sage: Y = (GF(3)^1)/(GF(3)^1)
sage: Y((1,))
lda must be >= MAX(N,1): lda=0 N=0Parameter 7 to routine cblas_sgemv was incorrect
Mac OS BLAS parameter error in cblas_sgemv, parameter #0, (unavailable), is 0
d-69-91-159-193:devel Starx$
}}}

I have not yet been able to find the error, the problem may be with a call to LinBox, as discussed here: http://groups.google.com/group/sage-support/browse_thread/thread/30bfc9922b26f3d7 but I am not yet sure.

Apply trac_12413_linbox_crash.patch",defect,closed,critical,sage-5.0,linear algebra,fixed,sd36,malb,,N/A,Volker Braun,Martin Albrecht,sage-5.0.beta7,,