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Comments: In-reply-to Andrew MacIntyre <andymac@bullseye.apana.org.au>
   message dated "Thu, 29 Jan 2004 21:28:56 +1100."
From: Berry Kercheval <berry@panasas.com>
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Subject: Re: Signal 10? 
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andymac@bullseye.apana.org.au said:
> The pthreads implementation on 4.x (-lc_r) will also provoke a bus
> error if the primary thread's stack (which is hard coded at 1MB) is
> exhausted.

I've also seen a bus error when one replaces the binary of a running program 
and it eventually pages in a page that doesn't match what's running; things 
that were previously aligned aren't any more, or a jump from the old code goes 
to the middle of an instruction in the new code.  This is one of the reasons 
attempting to open() a running program's executable file for write returns 
ETXTBUSY.