IIRC I have seen this while working on https://trac.sagemath.org/ticket/18920 (and it's reported upstream - this is a Maxima or Maxima/ECL bug)
see also https://trac.sagemath.org/wiki/symbolics On Sunday, January 15, 2017 at 2:27:32 PM UTC, Peleg Michaeli wrote: > > The following attempt: > > sage: var('c,n') > sage: (1/(c*n^6))^log(n,2/3).limit(n=infinity) > > Is ok (raises ValueError), but the following attempt: > > sage: var('c,n') > sage: f = (1/(c*n^6))^log(n,2/3) > sage: f.limit(n=infinity) > > hangs a little while, the prints a lot of times > > ;;; > ;;; Detected access to protected memory, also kwown as 'bus or > segmentation fault'. > ;;; Jumping to the outermost toplevel prompt > ;;; > > and ends with a segmentation fault (core dumped). > > This is on SageMath version 7.5.beta5, Release Date: 2016-12-01, built on > my Ubuntu. > > Should I open a ticket? > > > Thanks, > Peleg. > > ---- > > System info: > > * Ubuntu 14.04.5 LTS (trusty) > * Architecture: 64 bit > * Kernel version: 4.4.0-57-generic > * Dell E7440 > * Bios version: A14 > > ---- > > Build info: > > * gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4 > * GNU Make 3.81 > * m4 (GNU M4) 1.4.17 > * perl v5.18.2 > * GNU ar (GNU Binutils for Ubuntu) 2.24 > * GNU ranlib (GNU Binutils for Ubuntu) 2.24 > * tar (GNU tar) 1.27.1 > * Python 2.7.6 > > ---- > > Additional software: > > * dvipng (dvipng (TeX Live)) 1.15 > * pdfTeX 3.14159265-2.6-1.40.16 (TeX Live 2015) > > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
