| From: | Pavel Borisov <pashkin(dot)elfe(at)gmail(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Cc: | "Andrey M(dot) Borodin" <x4mmm(at)yandex-team(dot)ru>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Darafei Komяpa Praliaskouski <me(at)komzpa(dot)net>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Yet another fast GiST build |
| Date: | 2020-10-06 11:05:42 |
| Message-ID: | CALT9ZEHoDE_gteWRuCNpHee26fpr0SRh8nmYuicWUXc4DufqEw@mail.gmail.com |
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| Lists: | pgsql-hackers |
I've been making tests with memory sanitizer and got one another error in
regression test create_index:
CREATE INDEX gpointind ON point_tbl USING gist (f1);
server closed the connection unexpectedly
with logfile:
gistproc.c:1714:28: runtime error: 1e+300 is outside the range of
representable values of type 'float'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior gistproc.c:1714:28
gistproc.c:
1714 z = point_zorder_internal(p->x, p->y);
Consider this a minor issue but unrelated to the other issues discussed. It
is reproduced on the last master
commit 0a3c864c32751fd29d021929cf70af421fd27370 after all changes into Gist
committed.
cflags="-DUSE_VALGRIND -Og -O0 -fsanitize=address -fsanitize=undefined
-fno-sanitize-recover=all -fno-sanitize=alignment -fstack-protector"
--
Best regards,
Pavel Borisov
Postgres Professional: http://postgrespro.com <http://www.postgrespro.com>
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