here is a fix: in SAGE_ROOT (the directiry where Sage startup script, called sage, is), run ./sage -f http://boxen.math.washington.edu/home/jdemeyer/spkg/mpir-2.4.0.p4.spkg this will install a patched MPIR spkg. Then run ./sage -b to rebuild parts of Sage which depend upon MPIR (it takes a while, perhaps 15 minutes or so).
After this, Sage works as it should. The problem appears to be due to Core2 processors (e.g. in some Macbooks Air) being unable to run certain instructions that they are expected to run, and so an executable built on a "better" processor is unaware of this. On Thursday, 17 May 2012 01:11:05 UTC+2, Jim wrote: > > Hello sage team. > > I have just downloaded and installed Sage 5.0 on my system: > > Mac OS X 10.6.8 > > I downloaded sage-5.0-OSX-64bit-10.6-x86_64-Darwin.dmg. > > It keeps crashing and is unusable. > > Here is a simple session: > > ---------------------------------------------------------------------- > | Sage Version 5.0, Release Date: 2012-05-14 | > | Type notebook() for the GUI, and license() for information. | > ---------------------------------------------------------------------- > sage: # Feather parameters > sage: L_lv = 1300 # length of leading vane in microns > sage: L_tv = 2300 # length of trailing vane > sage: L_tot = L_lv + L_tv > sage: shaft_cenx = L_lv # center of shaft > sage: shaft_ceny = 0 > sage: R_shaft = 185 # radius of shaft > sage: dx = 10 # nominal spacing between grid points > sage: T_v1 = 10 # thickness of vane at edge > sage: T_v2 = 20 # thickness near center > sage: L_planar_lv = int(L_lv * .75) # length of planar segment of vane > > ------------------------------------------------------------------------ > Unhandled SIGILL: An illegal instruction occurred in Sage. > This probably occurred because a *compiled* component of Sage has a bug > in it and is not properly wrapped with sig_on(), sig_off(). You might > want to run Sage under gdb with 'sage -gdb' to debug this. > Sage will now terminate. > ------------------------------------------------------------------------ > /Applications/sage/spkg/bin/sage: line 312: 1513 Illegal instruction > sage-ipython "$@" -i > logout > > > I'm going to reinstall sage 4.8; I can't get any work done with 5.0. > > Jim Clark -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
