Fifth crashes when I try to go to any URL

[jorgicio]

Hi!
I'm the maintainer of the fifth package in Gentoo. I built it (with its dependencies webkitfltk and urlmatch using GCC 7.3.0), and everything went fine.
However, everytime I want to go to any URL, this happens:

hackenherr:~ jorgicio% fifth [21:57:27]
Crash recovery
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: profile 'Photoshop ICC profile': 'RGB ': RGB color space not permitted on grayscale PNG
ASSERTION FAILED: !m_deletionHasBegun
../WTF/wtf/RefCounted.h(44) : void WTF::RefCountedBase::ref()
1 0x5634974092e8
2 0x563497694382
3 0x56349755412a
4 0x5634974c35ed
5 0x5634972cf3ea
6 0x5634971aada2
7 0x5634971aaf86
8 0x5634971db692
9 0x5634988b4576
10 0x5634988b4696
11 0x5634970cbb46
12 0x5634976eadb2
13 0x7f7cd565546d Fl::wait(double)
14 0x56349702d6f4
15 0x7f7cd3cd60b1 __libc_start_main
16 0x56349702e53a
Crashing with signal Violación de segmento (11)
LEAK: 1 RenderObject
LEAK: 434 WebCoreNode
LEAK: 42 SubresourceLoader
LEAK: 44 CachedResource
LEAK: 1 Frame
LEAK: 1 Page

Also, I tried with gdb:

hackenherr:~ jorgicio% gdb fifth [20:42:36]
zsh: correct 'fifth' to '.fifth' [nyae]? n
GNU gdb (Gentoo 8.1 p1) 8.1
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from fifth...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/fifth
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Crash recovery
[New Thread 0x7ffff2c2b700 (LWP 9930)]
[New Thread 0x7ffff2b99700 (LWP 9931)]
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: profile 'Photoshop ICC profile': 'RGB ': RGB color space not permitted on grayscale PNG
[New Thread 0x7ffff2992700 (LWP 9932)]
[New Thread 0x7fffafffd700 (LWP 9975)]
[New Thread 0x7fffafdfc700 (LWP 9976)]
[New Thread 0x7fffafbfb700 (LWP 9977)]
[New Thread 0x7fffaf9fa700 (LWP 9978)]
[Thread 0x7fffaf9fa700 (LWP 9978) exited]
[New Thread 0x7fffaf9fa700 (LWP 9979)]
[Thread 0x7fffaf9fa700 (LWP 9979) exited]
[New Thread 0x7fffaf9fa700 (LWP 9994)]
[New Thread 0x7fffaede1700 (LWP 9995)]
[New Thread 0x7fffae5e0700 (LWP 9996)]
[New Thread 0x7fffadddf700 (LWP 9997)]
[Thread 0x7fffaede1700 (LWP 9995) exited]
[Thread 0x7fffaf9fa700 (LWP 9994) exited]
[Thread 0x7fffae5e0700 (LWP 9996) exited]
[Thread 0x7fffadddf700 (LWP 9997) exited]
[New Thread 0x7fffadddf700 (LWP 9998)]
[Thread 0x7fffadddf700 (LWP 9998) exited]
ASSERTION FAILED: !m_deletionHasBegun
../WTF/wtf/RefCounted.h(44) : void WTF::RefCountedBase::ref()
1 0x555555d172e8
2 0x555555fa2382
3 0x555555e6212a
4 0x555555dd15ed
5 0x555555bdd3ea
6 0x555555ab8da2
7 0x555555ab8f86
8 0x555555ae9692
9 0x5555571c2576
10 0x5555571c2696
11 0x5555571c2696
12 0x5555559d9b46
13 0x555555ff8db2
14 0x7ffff78f446d Fl::wait(double)
15 0x55555593b6f4
16 0x7ffff5f5d0b1 __libc_start_main
17 0x55555593c53a

Thread 1 "fifth" received signal SIGSEGV, Segmentation fault.
0x00005555564df41c in ?? ()
(gdb) kill
Kill the program being debugged? (y or n) y
(gdb) quit

I think the problem is with WTF.

Thanks.

[clbr]

It's known that webkit built with asserts crashes on most websites. The asserts are rather zealous, or if you prefer, webkit code is not up to the standards of the asserts. So for a production browser comparable to Safari or others, please disable the asserts; other webkit projects also do so.

I should also mention that LTO with GCC 7 causes issues, so you should disable LTO for that version in the ebuild, if that is possible.

[jorgicio]

@clbr In fact I don't have enabled LTO in GCC7, so I'll try disabling the asserts to see if it works. I guess may do it in both packages (webkitfltk and fifth)