Package: octave-ltfat Version: 2.0.1-1 Severity: important Dear Maintainer,
I've had inconsistent Octave seg-faults on several jessie machines that I've traced to at least the octave-ltfat package. The seg-faults are triggered calls to the Octave function rcond. Installing octave-ltfat makes it break, uninstalling restores expected behavior (i.e. not crashing Octave). I discovered this problem when chasing down a segmentation fault in octave-optim's leasqr function. rcond breaks only on matrices of size greater than 9 (31 is used below), so it will only turn up when fitting functions of ten or more parameters. Example breakage: cah49@charlie:~$ octave --quiet octave:1> rcond(magic(31)) ans = 0.030391 octave:2> cah49@charlie:~$ cah49@charlie:~$ sudo apt-get install octave-ltfat Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: octave-ltfat 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/561 kB of archives. After this operation, 7,074 kB of additional disk space will be used. Selecting previously unselected package octave-ltfat. (Reading database ... 100497 files and directories currently installed.) Preparing to unpack .../octave-ltfat_2.0.1-1_amd64.deb ... Unpacking octave-ltfat (2.0.1-1) ... Setting up octave-ltfat (2.0.1-1) ... cah49@charlie:~$ octave --quiet octave:1> rcond(magic(31)) Segmentation fault cah49@charlie:~$ sudo apt-get remove octave-ltfat Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: octave-ltfat-common Use 'apt-get autoremove' to remove it. The following packages will be REMOVED: octave-ltfat 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. After this operation, 7,074 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 100544 files and directories currently installed.) Removing octave-ltfat (2.0.1-1) ... cah49@charlie:~$ octave --quiet octave:1> rcond(magic(31)) ans = 0.030391 octave:2> I will update this bug report if I find any other packages that break *** Reporter, please consider answering these questions, where appropriate *** * What was the outcome of this action? * What outcome did you expect instead? *** End of the template - remove these template lines *** -- System Information: Debian Release: 8.0 APT prefers testing-updates APT policy: (500, 'testing-updates'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages octave-ltfat depends on: ii libblas3 [libblas.so.3] 1.2.20110419-10 ii libc6 2.19-18 ii libfftw3-double3 3.3.4-2 ii libfftw3-single3 3.3.4-2 ii libgcc1 1:4.9.2-10 ii libgfortran3 4.9.2-10 ii liblapack3 [liblapack.so.3] 3.5.0-4 ii liboctave2 3.8.2-4 ii libopenblas-base [liblapack.so.3] 0.2.12-1 ii libquadmath0 4.9.2-10 ii libstdc++6 4.9.2-10 ii octave 3.8.2-4 ii octave-ltfat-common 2.0.1-1 octave-ltfat recommends no packages. octave-ltfat suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
