Bill,

you were right. libgmp.so from my desktop PC which passes all 3 tests,
isn't stripped. Therefore, it cannot be from distro. May be, it's from
previous version of j904_linux64.tar.gz . It's meta-data:
- size: 614504 bytes
- timestamp: 2022-12-15 09:17:56
- GMP version: 6.2.1

I've checked again all libgmp.so available on both PCs, and may conclude:
1) two libgmp 6.1.2 libs (from distro and built from gmplib.org tarball)
   pass (x: 1000) test but crash with (+/ .*) and (-/ .*) tests;
2) two libgmp 6.2.1 libs bundled with J (from tarballs dated 2022-12-15
   and 2023-01-15) work fine with JE j904/j64avx2/linux and crash for
   all 3 tests with JE j904/j64avx/linux;
3) libgmp 6.2.1 built from gmplib.org tarball works fine with JE
   j904/j64avx/linux (on the same PC where it was built).

Crash case (JE: j904/j64avx/linux, libgmp 6.2.1 bundled with J, current
tarball version):

user@notebook:~/j904/bin> LANG=C ./jconsole
   JVERSION
Engine: j904/j64avx/linux
Beta-j: commercial/2023-01-07T02:27:29
Library: 9.04.11
Platform: Linux 64
Installer: J904 install
InstallPath: /home/user/j904
Contact: www.jsoftware.com
   x: 1000
JE has crashed, likely due to an internal bug.  Please report the code which 
caused the crash, as well as the following printout, to the J programming forum.
00000000004030a2: ?:0:  sigsegv
00007f84a7b2dd4f: ?:0:  ?
00007f84a673ce2e: ?:0:  __gmpz_get_str
00007f84a71b6c6a: ?:0:  jtthxqe
00007f84a71b75be: ?:0:  jtthorn1main
00007f84a71bb3bb: ?:0:  jtjprx
00007f84a71bcf11: ?:0:  jtjpr1
00007f84a71bcd9b: ?:0:  jtjpr
00007f84a71db0d9: ?:0:  jtimmex
00007f84a71c7a61: ?:0:  jdo
00007f84a71c7813: ?:0:  JDo
0000000000402f9f: ?:0:  main
00007f84a7b1829c: ?:0:  __libc_start_main
00000000004024ed: ?:0:  _start
ffffffffffffffff: ?:0:  ?
-----------------------------------------------------------------------------
Aborted                 (core dumped)

user@notebook:~/j904/bin> LANG=C ./jconsole.
   (+/ .*)x: 4 4$_ __ 0 0 1 1 0 0 0 0 1 0 0 0 0 1
JE has crashed, likely due to an internal bug.  Please report the code which 
caused the crash, as well as the following printout, to the J programming forum.
00000000004030a2: ?:0:  sigsegv
00007fc29f286d4f: ?:0:  ?
00007fc29e11cc3a: ?:0:  __gmpn_mul_1
-----------------------------------------------------------------------------
Aborted                 (core dumped)

user@notebook:~/j904/bin> LANG=C ./jconsole.
   (-/ .*)x: 4 4$_ __ 0 0 1 1 0 0 0 0 1 0 0 0 0 1
JE has crashed, likely due to an internal bug.  Please report the code which 
caused the crash, as well as the following printout, to the J programming forum.
00000000004030a2: ?:0:  sigsegv
00007efd35339d4f: ?:0:  ?
00007efd341cfc3a: ?:0:  __gmpn_mul_1
-----------------------------------------------------------------------------
Aborted                 (core dumped)

user@notebook:~/j904/bin> LANG=C ./jconsole.
   load '~user/temp/gmp_ver.ijs'
   gmp_version ''
libgmp.so      569448 15-Jan-23 23:05:28
6.2.1
   exit ''

user@notebook:~/j904/bin> ./jconsole
   fread < '~user/temp/gmp_ver.ijs'
NB. nilad to get GMP version string
NB. ver=. gmp_version ''
gmp_version=: 3 : 0
  dl=. '/usr/lib64/libdl.so'
  g=. (jpath '~bin') , '/libgmp.so'
  echo dir g
  h=. 0 {:: (dl , ' dlopen * *c i') cd g ; 1  NB. lazy binding
  assert 0 ~: h
  p=. 0 {:: (dl , ' dlsym x x *c') cd h ; '__gmp_version'
  assert 0 ~: p
  c=. memr p , 0 1 4
  assert 0 ~: c
  ver=. memr c , 0 _1
)

--
Regards,
Igor


On Tue, Jan 31, 2023 at 01:24 AM bill lam <[email protected]> wrote:
> I found libgmp 6.1.2 crashed for those 2 lines, but libgmp 6.2.1 that
> bundled by J works fine.
> 
> I think libgmp 6.1.2  is buggy but the bundled 6.2.1 can't be loaded on
> your computers.
> 
> If you linux distro can provide libgmp 6.2.1 ( or 6.2.0) you should update
> to the newer version.
> 
> Can you double check the version of libgmp after OS upgrade on your desktop
> computer?



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