*BSD News Article 89370


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Can hardware problems result in SIGSEGV and SIGBUS?
Date: 16 Feb 1997 20:58:08 GMT
Organization: Private BSD site, Dresden
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Gunther Schadow <gunther@gusw.dialup.fu-berlin.de> wrote:

> can you imagin a broken hardware as the cause of busy processes getting
> killed rather randomly with SIGSEGV and SIGBUS? For some days now, I get

Of course.  Some Linux guy even setup a ``Sig 11 home page'' for this.

>  I am completely stucked! Do I have to replace
> hardware components? A new processor? How can I test this, I mean, I do
> not have the mony to buy a new i586/133 just to see that the new one
> does not help.

It's most likely not the CPU.  The best test so far is still a ``make
world'' of a FreeBSD source tree.

It's very often bad RAM, RAM timing problems, bad cache problems, or
(with older boards) problems with write-back cache policy on broken
chipsets when using a busmaster DMA controller.

You aren't perchance overclocking your CPU?

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)