Hi, In fact I think this is the well known SBCL message: « heap is exhausted, augment dynamic space size » or something like that. But Julia catchs the signal and stops all apparently. I have rebuilt the SBCL deb file with a modified debian/rules (8 Gb of dynamic space size) and now I can compile, use polynomials and even no longer have to use a modified .fricasrc file. All seems right.
By the way, many thanks for all advices I'll use them, I need to look deeper in signals handler in Julia. Yes, Julia us open source (MIT licence). __ Greg Le jeu. 29 déc. 2022 à 20:27, Tim Daly <axiom...@gmail.com> a écrit : > If you want to find a SIGSEGV trap run the whole thing under GDB. > This link might help. > > http://www.unknownroad.com/rtfm/gdbtut/gdbsegfault.html > > Set the trap on the line issuing the error message. It will let you > see the stack. > > Good programming practice for setting things like SIGSEGV is to > remember the current setting, install your handler, and then call > the saved setting. This creates a chain of handlers. > > I believe Julia is open source. If Julia isn't doing that, then fix it > and post a patch. > > An easier path is to just comment out the SIGSEGV setting code > and see if the fault goes away. > > Tim > > > On Thursday, December 29, 2022 at 11:01:26 AM UTC-5 g.va...@gmail.com > wrote: > >> Le mar. 27 déc. 2022 à 14:41, Waldek Hebisch >> <de...@fricas.math.uni.wroc.pl> a écrit : >> > >> > On Tue, Dec 27, 2022 at 10:52:04AM +0100, Grégory Vanuxem wrote: >> > > Hello Waldek, >> > > >> > > Le mar. 27 déc. 2022 à 02:43, Waldek Hebisch >> > > <de...@fricas.math.uni.wroc.pl> a écrit : >> > > > >> > > > On Wed, Dec 21, 2022 at 12:38:15PM +0100, Grégory Vanuxem wrote: >> > > > > Hello Waldek, hello all, >> > > [SNIPPET] >> > > >> > > >> The base is done for me, but... The Julia library requires an >> > > >> initialisation and I can't figure out how to initialize its >> environment at >> > > >> startup, I always encounter a fatal error: ReadOnlyMemoryError >> > > >> > > > I have never seen such a message. >> > > >> > > Me too, and, difficult to debug in fact. >> > <snip> >> > > > > fatal: error thrown and no exception handler available. >> > > > > ReadOnlyMemoryError() >> > > > > unknown function (ip: 0x52f7062f) >> > > > <snip> >> > >> > Just a little remark: Google says that "error thrown and no >> > exception handler available" is Julia error message. Since >> > you are _not_ calling Julia this must be exception handler >> > installed by Julia. But sbcl depends on exceptions and >> > its execetions should go to sbcl handlers. If Julia and >> > sbcl wants to take over the same signal (likely SIGSEGV), >> > then you are in trouble. >> >> You're in touch with God I believe*, thanks. I believe something is right >> here. >> __ >> Greg >> * not yo be taken literally (SIGTRAP for info) >> > -- > You received this message because you are subscribed to the Google Groups > "FriCAS - computer algebra system" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to fricas-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/fricas-devel/955b588c-3404-4969-be57-f15bb94fdcc3n%40googlegroups.com > <https://groups.google.com/d/msgid/fricas-devel/955b588c-3404-4969-be57-f15bb94fdcc3n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/fricas-devel/CAHnU2dY_C-kJSQiM_PX%2BZgfdVM%2B8MzsL6j4uDjGwexF9PgR8fw%40mail.gmail.com.
