Well... I discovered and fixed one problem (an off by 2 error with AC(z)).
Ironically, fixing this problem had no effect on the problem I've been
trying to isolate.
Which seems strange...
--
Raul
On Sat, Nov 25, 2023 at 8:43 AM Raul Miller <rauldmil...@gmail.com> wrote:
>
> I think I figured out the problem, given Henry's hints and what I'm seeing.
>
> No need for anyone else to spend time on this.
>
> Thanks,
>
> --
> Raul
>
> On Fri, Nov 24, 2023 at 10:12 PM Bill Heagy <whe...@bell.net> wrote:
> >
> > Probably not helpful. This produced the right answer, but complained a
> > lot. I just recompiled with gcc, which produced the wrong answer, but
> > didn't complain.
> >
> > Bill H.
> >
> > On 11/24/23 22:01, Bill Heagy wrote:
> > > Does this help:
> > >
> > > I've compiled with sanitize:
> > > CC='clang -g -fsanitize=address -fno-omit-frame-pointer
> > > -fsanitize-recover=address' jplatform=linux j64x=j64avx2
> > > make2/build_all.sh
> > >
> > >
> > > $ USE_OPENMPI=2 ASAN_OPTIONS=halt_on_error=0 ./jlibrary/bin/jconsole
> > > [various complaints starting up]
> > > .......
> > > 0j30 ": (*%) 11 c. 665142606648569600281099799288x
> > > =================================================================
> > > ==136587==ERROR: AddressSanitizer: global-buffer-overflow on address
> > > 0x7eff18c54180 at pc 0x7eff18611c52 bp 0x7ffc21b2e3f0 sp 0x7ffc21b2e3e8
> > > READ of size 8 at 0x7eff18c54180 thread T0
> > > #0 0x7eff18611c51 in mvc
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/u.c:345:8
> > > #1 0x7eff18571535 in jtfmte
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:224:94
> > > #2 0x7eff18571535 in jtfmt1
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:244:13
> > > #3 0x7eff1856d943 in jtth2a
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:287:3
> > > #4 0x7eff1856d943 in jtthorn2
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:390:3
> > > #5 0x7eff185c964f in jtparsea
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/p.c:751:10
> > > #6 0x7eff185c817b in jtparse
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/p.c:290:4
> > > #7 0x7eff185d6afb in jtimmex
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/px.c:54:28
> > > #8 0x7eff1858f47c in jtimmexexecct
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/io.c:386:2
> > > #9 0x7eff1858f47c in jdo
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/io.c:422:111
> > > #10 0x7eff1858ee62 in JDo
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/io.c:527:9
> > > #11 0x563c3aa02bff in main
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/jconsole.c:393:28
> > > #12 0x7eff1fe286c9 in __libc_start_call_main
> > > csu/../sysdeps/nptl/libc_start_call_main.h:58:16
> > > #13 0x7eff1fe28784 in __libc_start_main csu/../csu/libc-start.c:360:3
> > > #14 0x563c3a92b440 in _start
> > > (/home/wheagy/git/jsource/jlibrary/bin/jconsole+0x23440) (BuildId:
> > > 5cef6dfdd9af34a072711de8a792780461088bc1)
> > >
> > > 0x7eff18c54180 is located 32 bytes before global variable '.str.13'
> > > defined in
> > > '/home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:104'
> > > (0x7eff18c541a0) of size 2
> > > '.str.13' is ascii string '*'
> > > 0x7eff18c54182 is located 0 bytes after global variable '.str.12'
> > > defined in
> > > '/home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/f2.c:98'
> > > (0x7eff18c54180) of size 2
> > > '.str.12' is ascii string '0'
> > > SUMMARY: AddressSanitizer: global-buffer-overflow
> > > /home/wheagy/git/jsource/make2/obj/linux/j64avx2/../../../../jsrc/u.c:345:8
> > > in mvc
> > > Shadow bytes around the buggy address:
> > > 0x7eff18c53f00: 00 00 00 02 f9 f9 f9 f9 00 00 00 00 00 00 00 00
> > > 0x7eff18c53f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 0x7eff18c54000: 00 05 f9 f9 00 07 f9 f9 00 06 f9 f9 04 f9 f9 f9
> > > 0x7eff18c54080: 03 f9 f9 f9 02 f9 f9 f9 04 f9 f9 f9 03 f9 f9 f9
> > > 0x7eff18c54100: 05 f9 f9 f9 04 f9 f9 f9 03 f9 f9 f9 02 f9 f9 f9
> > > =>0x7eff18c54180:[02]f9 f9 f9 02 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9
> > > 0x7eff18c54200: 00 00 06 f9 f9 f9 f9 f9 03 f9 f9 f9 00 00 00 00
> > > 0x7eff18c54280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 0x7eff18c54300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 0x7eff18c54380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > 0x7eff18c54400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> > > Shadow byte legend (one shadow byte represents 8 application bytes):
> > > Addressable: 00
> > > Partially addressable: 01 02 03 04 05 06 07
> > > Heap left redzone: fa
> > > Freed heap region: fd
> > > Stack left redzone: f1
> > > Stack mid redzone: f2
> > > Stack right redzone: f3
> > > Stack after return: f5
> > > Stack use after scope: f8
> > > Global redzone: f9
> > > Global init order: f6
> > > Poisoned by user: f7
> > > Container overflow: fc
> > > Array cookie: ac
> > > Intra object redzone: bb
> > > ASan internal: fe
> > > Left alloca redzone: ca
> > > Right alloca redzone: cb
> > > 1.000000000000000000000000000000
> > >
> > >
> > > On 11/24/23 21:41, Raul Miller wrote:
> > >> So... near as I can tell, the problem occurs inside plusXX which
> > >> resides between jtva2 and jtxplus.
> > >>
> > >> Specifically, an audittstack in jtva2 like this:
> > >> {if(MEMAUDIT&2)audittstack(jt);}
> > >> {I lrc=((AHDR2FN*)aadocv->f)(n,m,av,wv,zv,jt); // run one
> > >> section. Result of 0 means error
> > >> {if(MEMAUDIT&2)audittstack(jt);}
> > >>
> > >> and in jtplusx like this:
> > >>
> > >> XF2(jtxplus){ // a+w
> > >> {if(MEMAUDIT&2)audittstack(jt);}
> > >>
> > >> gives me a segfault with a stack trace on that first line of jtxplus,
> > >> with plusXX between jtva2 and jtxplus, and of course with the above
> > >> lrc= line on the stack for jtva2 (but only after the 150 seconds of
> > >> scripting to trigger the problem).
> > >>
> > > ----------------------------------------------------------------------
> > > For information about J forums see http://www.jsoftware.com/forums.htm
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
