This looks suspiciously like a bug in ATLAS-devel (3.9.x) that I recently helped to track down. Is the Ubuntu PPA compiling Sage's own ATLAS library or is it using a system library? Note that Sage ships ATLAS-stable (3.8.x) for a good reason.
On Wednesday, July 4, 2012 11:03:07 AM UTC+1, Jan Groenewald wrote: > > I get, Ubuntu 12.04, PPA Sage 5.0.1, sag -gdb: > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7fffb2c17700 (LWP 15581)] > 0x00007fffeb4e0f0d in ATL_dJIK40x40x40TN40x40x0_a1_b1 () > from /usr/lib/sage/local/lib/libatlas.so > (gdb) ) bt > #0 0x00007fffeb4e0f0d in ATL_dJIK40x40x40TN40x40x0_a1_b1 () > from /usr/lib/sage/local/lib/libatlas.so > #1 0x00007fffeb550f8f in ATL_dmmIJK2 () > from /usr/lib/sage/local/lib/libatlas.so > #2 0x00007fffeb551781 in ATL_dmmIJK () > from /usr/lib/sage/local/lib/libatlas.so > #3 0x00007fffeb547be5 in ATL_dgemm () from > /usr/lib/sage/local/lib/libatlas.so > #4 0x00007fffeb97516d in ATL_dptgemm0 () > from /usr/lib/sage/local/lib/libatlas.so > #5 0x00007ffff77ece9a in start_thread () > from /lib/x86_64-linux-gnu/libpthread.so.0 > #6 0x00007ffff6e194bd in clone () from /lib/x86_64-linux-gnu/libc.so.6 > #7 0x0000000000000000 in ?? () > (gdb) > > 0 jan@muizenberg:/var/autofs/misc/home/jan/t$dmesg |tail -4 > [16092.553653] do_general_protection: 27 callbacks suppressed > [16092.553657] python[11201] general protection ip:7feb5b24cf0d > sp:7feb42679b38 error:0 in libatlas.so[7feb5b1e6000+542000] > [16171.220888] python[13548] general protection ip:7f9df58a7f0d > sp:7f9dc7ff3b38 error:0 in libatlas.so[7f9df5841000+542000] > [16233.702079] python[14560] general protection ip:7f8363b90f0d > sp:7f832b2c6b38 error:0 in libatlas.so[7f8363b2a000+542000] > 0 jan@muizenberg:/var/autofs/misc/home/jan/t$egrep 'name|flags' > /proc/cpuinfo |head -2 > model name : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz > 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 smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm > dts tpr_shadow vnmi flexpriority > 0 jan@muizenberg:/var/autofs/misc/home/jan/t$ > > > BTW, <Googling ATL_dJIK40x40x40TN40x40x0_a1_b1 () leads to (I think > unrelated?) > http://trac.sagemath.org/sage_trac/ticket/11581 > > Regards, > Jan > > > -- > .~. > /V\ Jan Groenewald > /( )\ www.aims.ac.za > ^^-^^ > > -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
