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[Octave-bug-tracker] [bug #44285] "test eigs" never returns when built w

From: Mike Miller
Subject: [Octave-bug-tracker] [bug #44285] "test eigs" never returns when built with SuiteSparse 4.4.3
Date: Tue, 17 Feb 2015 22:57:57 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.91 Safari/537.36

Follow-up Comment #2, bug #44285 (project octave):

All tests in the "Complex hermitian tests" block that are marked with
HAVE_UMFPACK hang. If I comment them all out, `test eigs` finishes
successfully. All of them are blocked in the function cholmod_divcomplex,
which never returns (Ctrl-C followed by the `finish` command to gdb shows that
the function never returns).

Example top of the stack:

#0  cholmod_divcomplex (ar=-0, ai=-1, br=4, bi=0, cr=0xdde838, ci=0xdde840)
    at ../Core/cholmod_complex.c:60
#1  0x00007ffff1460a8b in umfzi_scale (n=<optimized out>, pivot=...,
X=<optimized out>)
    at ../Source/umf_scale.c:78
#2  0x00007ffff1459023 in umfzi_scale_column (address@hidden,

    address@hidden) at ../Source/umf_scale_column.c:384
#3  0x00007ffff14535a9 in umfzi_kernel (Ap=<optimized out>, Ai=<optimized
    Ax=<optimized out>, Az=<optimized out>, Numeric=0xe6ac40,
    Symbolic=0xe54f30) at ../Source/umf_kernel.c:223
#4  0x00007ffff1463d13 in umfpack_zi_numeric (Ap=0xdde838, Ai=0xdde840,
Ax=0x0, Az=0x0, 
    SymbolicHandle=0xe54f30, NumericHandle=0x4010000000000000, Control=0x14, 
    User_Info=0xe8a910) at ../Source/umfpack_numeric.c:289
#5  0x00007ffff5feb194 in SparseComplexLU::SparseComplexLU
(this=0x7fffffff6ae0, a=..., 
    piv_thres=..., scale=<optimized out>) at

It could be a bug in the library, or it could be something we need to call or
configure differently before using the same functions that used to work.


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