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segfault in eig()
From: |
Paul Kienzle |
Subject: |
segfault in eig() |
Date: |
Thu, 20 Jul 2000 11:00:39 +0100 (BST) |
To: address@hidden
Cc: pkienzle
Subject: segfault in eig()
Bug report for Octave 2.0.16.91 configured for i386-pc-linux-gnu
Description:
-----------
eig() is seg-faulting for some inputs.
Repeat-By:
---------
octave:2> eig(rand(3))
ans =
0.18953
1.72461
-0.35627
octave:3> eig([1 1 1; 1 2 3; 1 3 6])
error: Segmentation fault -- stopping myself...
attempting to save variables to `octave-core'...
save to `octave-core' complete
Segmentation fault
Configuration (please do not edit this section):
-----------------------------------------------
uname output: Linux kienzle 2.0.34 #3 Fri Oct 9 23:37:16 BST 1998 i586
unknown
configure opts: --prefix=/usr --datadir=/usr/share --libdir=/usr/lib
--libexecdir=/usr/lib --infodir=/usr/share/info --mandir=/usr/share/man
--with-g77 --enable-dl --enable-shared --enable-lite-kernel --host i386-linux
Fortran compiler: g77
FFLAGS: -O2
F2C:
F2CFLAGS:
FLIBS: -L/usr/lib/gcc-lib/i486-linux/egcs-2.90.29 -lf2c -lm
CPPFLAGS:
INCFLAGS: -I/usr/include/octave-2.0.16.91
-I/usr/include/octave-2.0.16.91/octave -I/usr/include
C compiler: gcc, version 2.7.2.3
CFLAGS: -DHAVE_CONFIG_H -mieee-fp -O2
CPICFLAG: -fPIC
C++ compiler: c++, version 2.90.29 980515 (egcs-1.0.3 release)
CXXFLAGS: -DHAVE_CONFIG_H -mieee-fp -fno-rtti -fno-exceptions
-fno-implicit-templates -O2
CXXPICFLAG: -fPIC
LDFLAGS: -s
LIBFLAGS: -L/usr/lib/octave-2.0.16.91
RLD_FLAG: -Xlinker -rpath -Xlinker /usr/lib/octave-2.0.16.91
TERMLIBS: -lncurses
LIBS:
LEXLIB:
LIBPLPLOT:
LIBDLFCN:
DEFS:
-DOCTAVE_SOURCE=1 -DSEPCHAR=':' -DSEPCHAR_STR=":" -DUSE_READLINE=1
-D__NO_MATH_INLINES=1 -DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DHAVE_LIBM=1
-DF77_APPEND_UNDERSCORE=1 -DOCTAVE_LITE=1 -DSIZEOF_SHORT=2
-DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1
-DNPOS=string::npos -DSTDC_HEADERS=1 -DHAVE_DIRENT_H=1
-DTIME_WITH_SYS_TIME=1 -DHAVE_SYS_WAIT_H=1 -DHAVE_ASSERT_H=1
-DHAVE_CURSES_H=1 -DHAVE_DLFCN_H=1 -DHAVE_FCNTL_H=1 -DHAVE_FLOAT_H=1
-DHAVE_FNMATCH_H=1 -DHAVE_GLOB_H=1 -DHAVE_GRP_H=1 -DHAVE_LIMITS_H=1
-DHAVE_MEMORY_H=1 -DHAVE_NAN_H=1 -DHAVE_NCURSES_H=1 -DHAVE_POLL_H=1
-DHAVE_PWD_H=1 -DHAVE_SGTTY_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1
-DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_PARAM_H=1 -DHAVE_SYS_POLL_H=1
-DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_SYS_STAT_H=1
-DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1 -DHAVE_SYS_TYPES_H=1
-DHAVE_SYS_UTSNAME_H=1 -DHAVE_TERMCAP_H=1 -DHAVE_TERMIO_H=1
-DHAVE_TERMIOS_H=1 -DHAVE_UNISTD_H=1 -DHAVE_VARARGS_H=1 -DHAVE_ATEXIT=1
-DHAVE_BCOPY=1 -DHAVE_BZERO=1 -DHAVE_DUP2=1 -DHAVE_ENDGRENT=1
-DHAVE_ENDPWENT=1 -DHAVE_EXECVP=1 -DHAVE_FCNTL=1 -DHAVE_FORK=1
-DHAVE_GETCWD=1 -DHAVE_GETEGID=1 -DHAVE_GETEUID=1 -DHAVE_GETGID=1
-DHAVE_GETGRENT=1 -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETHOSTNAME=1
-DHAVE_GETPGRP=1 -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1
-DHAVE_GETPWNAM=1 -DHAVE_GETPWUID=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1
-DHAVE_GETWD=1 -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1
-DHAVE_MKFIFO=1 -DHAVE_ON_EXIT=1 -DHAVE_PIPE=1 -DHAVE_PUTENV=1
-DHAVE_RENAME=1 -DHAVE_RINDEX=1 -DHAVE_RMDIR=1 -DHAVE_SELECT=1
-DHAVE_SETGRENT=1 -DHAVE_SETPWENT=1 -DHAVE_SETVBUF=1 -DHAVE_SIGACTION=1
-DHAVE_SIGPENDING=1 -DHAVE_SIGPROCMASK=1 -DHAVE_SIGSUSPEND=1
-DHAVE_STAT=1 -DHAVE_STRCASECMP=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1
-DHAVE_STRNCASECMP=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNLINK=1
-DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 -DHAVE_WAITPID=1
-DSMART_PUTENV=1 -DHAVE_PROGRAM_INVOCATION_NAME=1 -DHAVE_LIBDL=1
-DHAVE_DLOPEN=1 -DHAVE_DLSYM=1 -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1
-DWITH_DL=1 -DWITH_DYNAMIC_LINKING=1 -DHAVE_FINITE=1 -DHAVE_ISNAN=1
-DHAVE_ISINF=1 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1 -DHAVE_ERF=1
-DHAVE_ERFC=1 -DHAVE_ST_BLKSIZE=1 -DHAVE_ST_BLOCKS=1 -DHAVE_ST_RDEV=1
-DHAVE_TM_ZONE=1 -DHAVE_GR_PASSWD=1 -DEXCEPTION_IN_MATH=1
-DRETSIGTYPE=void -DSYS_SIGLIST_DECLARED=1 -DHAVE_SYS_SIGLIST=1
-DHAVE_POSIX_SIGNALS=1 -DHAVE_GETRUSAGE=1 -DHAVE_TIMES=1
-DGNUPLOT_HAS_MULTIPLOT=1 -DGNUPLOT_HAS_FRAMES=1
User-preferences (please do not edit this section):
--------------------------------------------------
EDITOR = "vi"
EXEC_PATH =
"/home/pkienzle/octave/audio::/scratch/programs/audio/package/pipewave.1.3/bin:/scratch/programs/audio/pitch/POWERpv1.1G/bin:/home/pkienzle/pantome/bin:/home/pkienzle/sfs/bin:/scratch/usr/bin:/home/pkienzle/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games"
IMAGEPATH = ".:/usr/share/octave/2.0.16.91/imagelib//"
INFO_FILE = "/usr/share/info/octave.info"
INFO_PROGRAM = "info"
LOADPATH = "/home/pkienzle/matcompat//:/home/pkienzle/octave//::"
PAGER = "less"
PS1 = "\\s:\\#> "
PS2 = "> "
PS4 = "+ "
auto_unload_dot_oct_files = 1
automatic_replot = 0
beep_on_error = 0
completion_append_char = " "
default_eval_print_flag = 1
# default_global_variable_value = <no value or error in displaying it>
default_return_value = []
default_save_format = "ascii"
define_all_return_values = 0
do_fortran_indexing = 0
echo_executing_commands = 0
empty_list_elements_ok = "warn"
fixed_point_format = 0
gnuplot_binary = "gnuplot"
gnuplot_has_frames = 1
gnuplot_has_multiplot = 1
history_file = "/home/pkienzle/.octave_hist"
history_size = 1024
ignore_function_time_stamp = "system"
implicit_num_to_str_ok = 0
implicit_str_to_num_ok = 0
initialize_global_variables = 0
max_recursion_depth = 256
ok_to_lose_imaginary_part = "warn"
output_max_field_width = 10
output_precision = 5
page_output_immediately = 0
page_screen_output = 1
prefer_column_vectors = 1
prefer_zero_one_indexing = 0
print_answer_id_name = 1
print_empty_dimensions = 1
propagate_empty_matrices = 1
resize_on_range_error = 1
return_last_computed_value = 0
save_precision = 15
saving_history = 1
silent_functions = 0
split_long_rows = 1
string_fill_char = " "
struct_levels_to_print = 2
suppress_verbose_help_message = 1
treat_neg_dim_as_zero = 0
warn_assign_as_truth_value = 1
warn_comma_in_global_decl = 1
warn_divide_by_zero = 1
warn_function_name_clash = 1
warn_missing_semicolon = 0
warn_reload_forces_clear = 1
warn_variable_switch_label = 0
whitespace_in_literal_matrix =
- segfault in eig(),
Paul Kienzle <=