On Fri, Nov 13, 2020 at 11:55 AM 'jonatha...@googlemail.com' via sage-devel <sage-devel@googlegroups.com> wrote: > > Thank you François. > > I was doubtful that your answer would help, but it did finally after some > googling. > > I had to run > > import matplotlib.font_manager > matplotlib.font_manager._rebuild() > > At least on the 9.2 install that did help and once my user had those fonts > installed in home (believe this is what happened) then it also fixed it on > other machines with the same install, but not with the 9.1beta5. Must be a > different problem there. > > I hope my solution also works for the students (maybe the fix can also be > applied in the jupyter notebook from the start, which would be super nice).
Calling this every time Sage starts would be a big slowdown, no? Perhaps only when ~/.sage/ is created, or something like that. > > Jonathan > > François Bissey schrieb am Freitag, 13. November 2020 um 10:34:05 UTC+1: >> >> The top of your crash log is interesting, especially with the context you >> give it. >> >> [I 08:54:47.064 NotebookApp] 302 GET >> /?token=9646f700a842467835ef92b578ebef632e86a326a85e828b (127.0.0.1) 1.53ms >> [I 08:54:56.520 NotebookApp] Kernel started: >> d273c9d9-80cb-45a6-a336-b3562f294b26, name: sagemath >> ------------------------------------------------------------------------ >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/cysignals/signals.cpython-38-x86_64-linux-gnu.so(+0x8bb8)[0x7faa181e6bb8] >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/cysignals/signals.cpython-38-x86_64-linux-gnu.so(+0x8c58)[0x7faa181e6c58] >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/cysignals/signals.cpython-38-x86_64-linux-gnu.so(+0xc89d)[0x7faa181ea89d] >> /lib/x86_64-linux-gnu/libpthread.so.0(+0x12730)[0x7faa1cb3b730] >> /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x10b)[0x7faa1c8107bb] >> /lib/x86_64-linux-gnu/libc.so.6(abort+0x121)[0x7faa1c7fb535] >> /lib/x86_64-linux-gnu/libgcc_s.so.1(+0x3358)[0x7faa1a2f8358] >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/matplotlib/ft2font.cpython-38-x86_64-linux-gnu.so(+0x7a62)[0x7fa87edd6a62] >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/matplotlib/ft2font.cpython-38-x86_64-linux-gnu.so(_ZN7FT2FontC1ER13FT_Open_Args_l+0x22b)[0x7fa87edda23b] >> /srv/public/shared/DGI-sage/local/lib/python3.8/site-packages/matplotlib/ft2font.cpython-38-x86_64-linux-gnu.so(+0xd35f)[0x7fa87eddc35f] >> >> >> I’d say it is trying to open a font file to which it has no right. >> >> François >> >> > On 13/11/2020, at 9:54 PM, 'jonatha...@googlemail.com' via sage-devel >> > <sage-...@googlegroups.com> wrote: >> > >> > Dear all, >> > >> > the jupyter notebook crashes when trying to plot unbounded polyhedra, e.g.: >> > >> > P = Polyhedron(ieqs=[(0,1,0)]) >> > P.show() >> > >> > Bounded polyhedra seem to work fine, but also plotting of the face >> > lattice, a FiniteLatticePoset, fails (even for the cube). >> > >> > The crash appears to be deterministic, but only users other than the >> > owner. (I changed the permissions to 777 inbetween, this does not seem to >> > be the issue.) >> > >> > This happens on a 9.2. install, but also on a 9.1beta5 install on a >> > different machine (both debian buster). >> > >> > It does work for prebuilt binaries (9.2 and 9.1). >> > >> > Here are the system packages picked up: (* are those that also are picked >> > up for the 9.1beta5 with the same problem). >> > >> > boost-1_66_0: using system package; SPKG will not be installed >> > boost_cropped-1.66.0.p0: using system package; SPKG will not be installed >> > *bzip2-1.0.6-20150304.p0: using system package; SPKG will not be installed >> > *cmake-3.18.2: using system package; SPKG will not be installed >> > *curl-7.62.0.p0: using system package; SPKG will not be installed >> > *gcc-9.2.0: using system package; SPKG will not be installed >> > gfan-0.6.2.p1: using system package; SPKG will not be installed >> > *gfortran-9.2.0: using system package; SPKG will not be installed >> > *git-2.11.0: using system package; SPKG will not be installed >> > *gmp-6.1.2: using system package; SPKG will not be installed >> > *iconv-1.15: using system package; SPKG will not be installed >> > *mpfr-4.0.1.p0: using system package; SPKG will not be installed >> > *mpir-3.0.0-644faf502c56f97d9accd301965fc57d6ec70868.p0:using system >> > package; SPKG will not be installed >> > *ncurses-6.0.p0: using system package; SPKG will not be installed >> > *ninja_build-1.8.2: using system package; SPKG will not be installed >> > pandoc-none: using system package; SPKG will not be installed >> > *patch-2.7.5: using system package; SPKG will not be installed >> > *pcre-8.40.p2: using system package; SPKG will not be installed >> > *perl_term_readline_gnu-1.35: using system package; SPKG will not be >> > installed >> > *pkgconf-0.9.7.p2: using system package; SPKG will not be installed >> > *readline-8.0: using system package; SPKG will not be installed >> > *xz-5.2.2.p0: using system package; SPKG will not be installed >> > *zlib-1.2.11.p0: using system package; SPKG will not be installed >> > >> > Does anyone know what might be the problem? >> > >> > In the section for installinging sagemath for multiusers there is no hint >> > https://doc.sagemath.org/html/en/installation/source.html#id11 >> > >> > The full config.log and the crash report are attached. >> > >> > Thank you, >> > >> > Jonathan >> > >> > >> > -- >> > 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+...@googlegroups.com. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msgid/sage-devel/48a9b546-c516-4969-b5f2-639964b975e4n%40googlegroups.com. >> > <crash.log><config.log> >> > -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/f76ebb2e-f0c2-4beb-b5fe-a6c90479fb9en%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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