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Old 04-19-09, 04:34 AM   #25
kernelOfTruth
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Default Re: Floating point exception with > 180.29

twisted_fall, guys take a look at the following thread:

Re: 180.50 -> 180.51 differences

if you're running gentoo and have cairo compiled with glitz-support this should fix your system and prevent those libGL.so crashes I got (if you're encountering them too)


for those "Floating point exception" messages it could be a toolchain problem (the newer toolchain uses pie and -D_FORTIFY_SOURCE=2)
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Old 04-22-09, 01:39 PM   #26
twisted_fall
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Default Re: Floating point exception with > 180.29

Well, I tried newest rc of Ubuntu 9.04 and latest stable NVIDIA drivers 180.51 do work. Firefox starts ok at least. Could please somebody point me into the right direction of debugging my system to find out what is wrong? I'm now thinking of trying to rebuild everything with safe CFLAGS, but it will take hell of a time...
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Old 04-23-09, 08:26 AM   #27
kernelOfTruth
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Default Re: Floating point exception with > 180.29

safe cflags/cxxflags/ldflags aren't necessarily needed

the only "triggers" so far (at least for me) seem to be:

*) cairo compiled with glitz-support

*) pie-support (which is included in the new gcc ?)

fstack-protector-all and -D_FORTIFY_SOURCE=2 seem to be fine

(I can't tell for sure)
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gcc version 4.4.0 (Gentoo Hardened 4.4.0-r1, espf-0.2.1)
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Old 04-26-09, 05:54 PM   #28
twisted_fall
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Default Re: Floating point exception with > 180.29

I kinda solved it. I removed my LDFLAGS and PORTAGE_STRIP_FLAGS and started rebuilding the whole world from scratch. Somewhere about the 400th package I tried to upgrade the driver and it ceased throwing SIGFPE. So tomorrow I'm gonna try to find out which package and with what LDFLAGS causes problems.

My LDFLAGS were "-Wl,-O3,--as-needed,--sort-common,--enable-new-dtags,--hash-style=gnu" and PORTAGE_STRIP_FLAGS — "--strip-all --discard-all -R .comment -R .note -R .note.ABI-tag".
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Old 04-27-09, 07:35 AM   #29
twisted_fall
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Default Re: Floating point exception with > 180.29

Well, I can't say I didn't expect this. Now my ldflags and stripflags are back and nothing sigfpes. So I think that that was some old library problem in my system, that was fixed when I rebuild some packages. Sorry for the fuss. Problem closed.
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Old 04-27-09, 07:54 AM   #30
NvFuchs
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Default Re: Floating point exception with > 180.29

That's why gentoo users should never be allowed to post bug reports

*ducks and hides*
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Old 05-01-09, 07:14 AM   #31
kernelOfTruth
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Default Re: Floating point exception with > 180.29

Quote:
That's why gentoo users should never be allowed to post bug reports
yeah right

we gentoo users in fact do most of all the testing due to our (sometimes) exotic combinations of apps and libraries so we ensure that everything works the best

take care that you aren't affected by this problem in the near future NvFuchs
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gcc version 4.4.0 (Gentoo Hardened 4.4.0-r1, espf-0.2.1)
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