We have some suspicious code in src/bin/sage-env; perhaps this is a good
opportunity to review whether this should be changed.
if [ -z "$MPLCONFIGDIR" ]; then
# We hardcode a version number in the directory name. The idea is
# that we keep using the same version number as long as that is
# possible. Only when some future Matplotlib version really requires
# a new structure for the $MPLCONFIGDIR should this version
# number be changed to the new matplotlib version.
export MPLCONFIGDIR="$DOT_SAGE/matplotlib-1.5.1"
fi
On Friday, November 13, 2020 at 5:21:01 AM UTC-8, jonatha...@googlemail.com
wrote:
>
> I only ran it once and it solved it permanently, also for the other
> installations of the same version on different computers, but with same
> home-directory. But it appears every user has to call it once.
>
> dim...@gmail.com schrieb am Freitag, 13. November 2020 um 14:08:52 UTC+1:
>
>> On Fri, Nov 13, 2020 at 11:55 AM 'jonatha...@googlemail.com' via
>> sage-devel <sage-...@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.
>> >> >
>>
>
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