Package: libatlas3-base Version: 3.8.4-6 Severity: grave Justification: renders package unusable
I have a Core2 machine that doesn't have the latest FMA4 instructions. My understanding that the libatlas3-base package from unstable shouldn't be doing anything fancy and potentially cpu-specific unless the user rebuilds this package themselves. I have the following trivial program: #include <stdio.h> int dgetrf_(int *m, int *n, double *a, int *lda, int *ipiv, int *info); int main(void) { int three = 3; int ipiv[3]; int info; double A[9] = {1,2,5,2,3,4,5,4,3}; dgetrf_(&three, &three, A, &three, ipiv, &info); printf("info: %d\n", info); return 0; } Session that shows the issue, with some useful diagnostics: dima@shorty:/tmp$ gcc-4.7 -llapack -o tst tst.c dima@shorty:/tmp$ ./tst zsh: illegal hardware instruction (core dumped) ./tst dima@shorty:/tmp$ ldd tst linux-vdso.so.1 => (0x00007fff3bbff000) liblapack.so.3 => /usr/lib/liblapack.so.3 (0x00007f3ff4f8e000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3ff4c07000) libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f3ff453d000) libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 (0x00007f3ff4227000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f3ff4011000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3ff3df4000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f3ff3b72000) /lib64/ld-linux-x86-64.so.2 (0x00007f3ff5caf000) libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 (0x00007f3ff393d000) dima@shorty:/tmp$ update-alternatives --display liblapack.so.3 liblapack.so.3 - auto mode link currently points to /usr/lib/atlas-base/atlas/liblapack.so.3 /usr/lib/atlas-base/atlas/liblapack.so.3 - priority 35 slave liblapack.so.3gf: /usr/lib/atlas-base/atlas/liblapack.so.3 /usr/lib/lapack/liblapack.so.3 - priority 10 slave liblapack.so.3gf: /usr/lib/lapack/liblapack.so.3 Current 'best' version is '/usr/lib/atlas-base/atlas/liblapack.so.3'. dima@shorty:/tmp$ dpkg -S /usr/lib/atlas-base/atlas/liblapack.so.3 libatlas3-base: /usr/lib/atlas-base/atlas/liblapack.so.3 dima@shorty:/tmp$ dpkg -l libatlas3-base Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-=======================-=======================-============================================================== ii libatlas3-base 3.8.4-6 Automatically Tuned Linear Algebra Software, generic shared dima@shorty:/tmp$ gdb tst core GNU gdb (GDB) 7.4.1-debian Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /tmp/tst...(no debugging symbols found)...done. [New LWP 30474] warning: Can't read pathname for load map: Input/output error. [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `./tst'. Program terminated with signal 4, Illegal instruction. #0 0x00007fa03d281bb7 in ATL_dgetrfC () from /usr/lib/liblapack.so.3 (gdb) disass Dump of assembler code for function ATL_dgetrfC: 0x00007fa03d281950 <+0>: mov %rbx,-0x30(%rsp) 0x00007fa03d281955 <+5>: mov %rbp,-0x28(%rsp) .......... 0x00007fa03d281bb3 <+611>: lea (%r12,%rax,8),%rbx => 0x00007fa03d281bb7 <+615>: vmovsd (%rbx),%xmm1 0x00007fa03d281bbb <+619>: vucomisd 0x996ced(%rip),%xmm1 # 0x7fa03dc188b0 0x00007fa03d281bc3 <+627>: mov 0x38(%rsp),%r10d .......... dima@shorty:/tmp$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU T7400 @ 2.16GHz stepping : 6 cpu MHz : 2167.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm dts tpr_shadow bogomips : 4322.43 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: -- System Information: Debian Release: wheezy/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.1.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C) Shell: /bin/sh linked to /bin/dash Versions of packages libatlas3-base depends on: ii libc6 2.13-33 ii libgcc1 1:4.7.0-12 ii libgfortran3 4.7.0-12 libatlas3-base recommends no packages. Versions of packages libatlas3-base suggests: ii liblapack3 3.4.1-1 -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org