This bug was fixed in the package lto-disabled-list - 23
---
lto-disabled-list (23) jammy; urgency=medium
* Add imgui to list as linking the static library produced with LTO enabled
into open3d crashes. (LP: #1963556)
-- Michael Hudson-Doyle Tue, 08 Mar 2022
16:44:21 +1300
> So I would propose to add imgui to the lto-disabled-list and
> recompile open3d afterwards. What do you think?
Sounds plausible. I'll try it in my PPA first though!
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: open3d (Ubuntu)
Status: New => Confirmed
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Title:
Ope
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: lto-disabled-list (Ubuntu)
Status: New => Confirmed
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T
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: imgui (Ubuntu)
Status: New => Confirmed
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Title:
Open
Hi Michael,
> tl;dr: probably an imgui bug causing an out of bounds write trashing
> malloc's internal data structures
Thanks for looking into it, sounds right.
I found that imgui in jammy is compiled with LTO and then statically linked
into open3d. Recompiling open3d (in jammy) with the imgui f
I spent a bit too long on this and I think this valgrind error is the
core of the issue:
==62437== Invalid write of size 4
==62437==at 0x685A6C0: stbrp_pack_rects (stb_rect_pack.h:548)
==62437==by 0x522A2D9: ImFontAtlasBuildWithStbTruetype(ImFontAtlas*) (in
/usr/lib/x86_64-linux-gnu/libOp
This is the traceback of how it's crashing:
(gdb) bt
#0 0x76f5779f in unlink_chunk (p=p@entry=0x55d7b380,
av=0x770cac80 ) at ./malloc/malloc.c:1628
#1 0x76f5a6ab in _int_malloc (av=av@entry=0x770cac80 ,
bytes=bytes@entry=4584) at ./malloc/malloc.c:4307
#2 0x7ff
** No longer affects: lto-disabled-list (Ubuntu)
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Title:
Open3D segfaults when compiled with LTO
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h
Turns out open3d is already in lto-disabled-list so something else is
going on.
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Title:
Open3D segfaults when compiled with LTO
To manage notifi
** Also affects: lto-disabled-list (Ubuntu)
Importance: Undecided
Status: New
** Tags added: lto
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Title:
Open3D segfaults when compile
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