Deciphering strace output [WAS: Sudden Emacs Error]

[Mark Wagnon <mwagnon1@home.com>]

Okay, I ran across strace, and I invoked it like so:

  strace -o emacs.err emacs

and I got a binch of `stuff' that I have no idea how to decipher.
Does anyone know what this means? Here's the last bit of the
error file:

---snip---

sigreturn()                             = ? (mask now [])
ioctl(5, FIONREAD, [64])                = 0
read(5, "\26\304\231\0\31\0\300\2\31\0\300"..., 64) = 64
gettimeofday({937072212, 769611}, NULL) = 0
select(6, [5], [], [], {5, 0})          = 1 (in [5], left {5, 0})
gettimeofday({937072212, 770391}, NULL) = 0
ioctl(5, FIONREAD, [32])                = 0
read(5, "\26\0\235\0\27\0\300\2\27\0\300\2"..., 32) = 32
--- SIGILL (Illegal Instruction) ---
sigaction(SIGILL, {SIG_DFL}, {0x8094210, [], SA_RESTART}) = 0
getpgrp()                               = 16645
ioctl(0, TIOCGPGRP, [16644])            = 0
sigaction(SIGIO, {SIG_IGN}, {0x809b5e0, [], SA_RESTART}) = 0
sigprocmask(SIG_UNBLOCK, [ILL], [ILL])  = 0
getpid()                                = 16645
kill(16645, SIGILL)                     = 0
--- SIGILL (Illegal Instruction) ---
+++ killed by SIGILL +++

---snip---

Any ideas? Should I try to remove and re-install emacs? Also, I
seem to have both emacs19 and emacs20 on my system. Is that
normal? If so, I've never noticed before, but that seems odd.

tia
-- 
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Mark Wagnon       )     Debian GNU/ -o) / /  (_)__  __ ____  __
Chula Vista, CA  (                  /\\/ /__/ / _ \/ // /\ \/ /
mwagnon1@home.com ) www.debian.org _\_v____/_/_//_/\_,_/ /_/\_\