WebPositive crashes on Pentium III laptop

[ckgrier2]

Possible WebKit issue with SSE/SSE2 op-codes. Attached is the debug log file. I've tried several of the recent nightly builds and they all have this problem.

Shouldn't the architecture for WebKit/Webpositive work for all pentium class PCs? ​http://sprunge.us/aDIV

[ckgrier2]

debug log

[pulkomandy]

Could you try the latest nightly? I modified the build files to target the i686 CPU, but I don't know if this will be enough, as WebKit also uses generated assembler code for the javascript interpreter.

[ckgrier2]

OK, I'll try it and get back to you. If it starts, I assume you'd like me to try a website with javascript ... right? Do you have any specific site you want me to test?

[pulkomandy]

Got feedback on IRC, adding it here before I forget: Even after adding the -march=i686 flag to WebKit, this doesn't work. My guess is the JavaScript engine is going to use SSE opcodes anyway. I'm afraid we can't do much more.

[ckgrier2]

log 1

[ckgrier2]

log 2

[ckgrier2]

It is strange how all the other applications work fine, like wonderbrush, beam, vision, OpenGL demo, etc.

As I understand it, the Pentium III has the P6 core and SSE, just not SSE2.

I'm attaching the debug logs for build version 46670 and 46656.

[korli]

It seems GCC uses SSE2 instructions for floating point operations. Either target the pentium/pentium3 archs or use "-mno-sse2".

[pulkomandy]

We're already compiling with -march=i686, but I'll try adding -mno-sse2...

[pulkomandy]

Fixed in ​https://github.com/haiku/webkit/commit/9619b6badfee396439e44291e41411845e72743e. One of the build scripts was enabling sse2 behid our back.