Date: Fri, 12 Sep 2003 15:56:02 -0400 From: culverk@yumyumyum.org To: Scott Reese <sreese@codysbooks.com> Cc: freebsd-current@freebsd.org Subject: Re: GCC tickling obscure hardware bug or...? Message-ID: <1063396562.945f4dc2da041@mailhub.yumyumyum.org> In-Reply-To: <1063396282.9261.18.camel@borges> References: <1063396282.9261.18.camel@borges>
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Quoting Scott Reese <sreese@codysbooks.com>: > Hello all, I'm rephrasing my previous question to reflect new findings > in my situation in the hopes that someone may have an idea of what's > going on here (see thread "Internal compiler error in > reload_cse_simplify_operands" from earlier this week). > > In a nutshell, I have upgraded my machine to a PIV 2.4 GHz processor on > a VIA P4B 400 motherboard with 512 MB Samsung 2700 DDRAM. I have a 300 > Watt power supply with a ball-bearing fan and a Seagate 40 GB HD. The > problem I'm having that I did not see with my PIII is that I'm getting > intermittent internal compiler errors when attempting to compile > anything (again, see previous thread for an example). I even did a > fresh install of the system yesterday in order to rule out something > random getting hosed causing problems with my compiler. Through > experimentation, I've found that toggling the CFLAGS from -O to -O2 or > vice-versa works around the problem (actually, I've had greater success > leaving my CFLAGS set to -O2 -pipe and occasionally bringing them back > to -O -pipe when I run into an ICE and then setting them back again). > My hunch is that some hardware bug is being tickled by gcc somehow. I > don't think it's the standard "broken hardware" thing because I've not > received any signal 11/7/4 errors at all and the system runs > wonderfully. So far it's been up for over 24 hours, compiling ports and > running without a hitch. The only strangeness is the compiler's > behavior. Also, I should mention that I added > > options DISABLE_PSE > options DISABLE_PG_G > > to my kernel config but the ICE's still persist, though they seem to be > less frequent now. > > Attached is my dmesg, please let me know if anyone would like any more > information about this or if you have any idea what might be going on > here. > > Thank you, > Scott > Whenever I've had problems like this, it's been either bad memory, or bad memory settings in bios. I'd check both of those things. Ken
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