The following test program appears to lose the same way, but only
intermittantly.  I.e., it usually works, but once in a while it core
dumps.

If you run it like:

$ (while :; do ./foo >/dev/null; done)

you'll see something like:

...
pid 27452 (foo), uid 149: exited on signal 11 (core dumped)
Alignment error: dsfsr=00000000:00800001 dsfar=0:7 isfsr=00000000:00000000 pc=0x10206e40
pid 27755 (foo), uid 149: exited on signal 10 (core dumped)
pid 28220 (foo), uid 149: exited on signal 11 (core dumped)
Alignment error: dsfsr=00000000:00800005 dsfar=0:1020581c isfsr=00000000:00000000 pc=0x10206da8
pid 28232 (foo), uid 149: exited on signal 10 (core dumped)
Alignment error: dsfsr=00000000:00800005 dsfar=0:1020581c isfsr=00000000:00000000 pc=0x10206da8
pid 28361 (foo), uid 149: exited on signal 10 (core dumped)
Alignment error: dsfsr=00000000:00800005 dsfar=0:1020581c isfsr=00000000:00000000 pc=0x10206da8
pid 28370 (foo), uid 149: exited on signal 10 (core dumped)
...

on the console.


-----8<-----snip-----8<-----snip-----8<-----snip-----8<-----snip-----8<-----
	.text

	.global	sig
sig:
	retl
	 nop

	.global	main
main:
	save	%sp, -128, %sp

	mov	20, %o0
	sethi	%hi(sig), %o1
	or	%o1, %lo(sig), %o1
	call	signal
	 nop

	save	%sp, -128, %sp
	mov	2, %i0
	mov	3, %i1
	mov	5, %i2
	mov	7, %i3
	mov	11, %i4
	mov	13, %i5

	save	%sp, -128, %sp
	mov	17, %i0
	mov	19, %i1
	mov	23, %i2
	mov	29, %i3
	mov	31, %i4
	mov	37, %i5

	save	%sp, -128, %sp
	mov	41, %i0
	mov	43, %i1
	mov	47, %i2
	mov	53, %i3
	mov	59, %i4
	mov	61, %i5

	save	%sp, -128, %sp
	mov	67, %i0
	mov	71, %i1
	mov	73, %i2
	mov	79, %i3
	mov	83, %i4
	mov	97, %i5

	save	%sp, -128, %sp
	mov	101, %i0
	mov	103, %i1
	mov	107, %i2
	mov	109, %i3
	mov	113, %i4
	mov	127, %i5

	save	%sp, -128, %sp
	mov	131, %i0
	mov	137, %i1
	mov	139, %i2
	mov	149, %i3
	mov	151, %i4
	mov	157, %i5

	save	%sp, -128, %sp
	mov	163, %i0
	mov	167, %i1
	mov	173, %i2
	mov	179, %i3
	mov	181, %i4
	mov	191, %i5

	save	%sp, -128, %sp
	mov	193, %i0
	mov	197, %i1
	mov	199, %i2
	mov	211, %i3
	mov	223, %i4
	mov	227, %i5

	call	fork
	 nop
	cmp	%o0, 0
	be	1f
	 nop

	call	fork
	 nop
	cmp	%o0, 0
	be	1f
	 nop

	sethi	%hi(output), %g1
	or	%g1, %lo(output), %g1

	stx	%i0, [%g1 + 8*6*7 + 8*0]
	stx	%i1, [%g1 + 8*6*7 + 8*1]
	stx	%i2, [%g1 + 8*6*7 + 8*2]
	stx	%i3, [%g1 + 8*6*7 + 8*3]
	stx	%i4, [%g1 + 8*6*7 + 8*4]
	stx	%i5, [%g1 + 8*6*7 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*6 + 8*0]
	stx	%i1, [%g1 + 8*6*6 + 8*1]
	stx	%i2, [%g1 + 8*6*6 + 8*2]
	stx	%i3, [%g1 + 8*6*6 + 8*3]
	stx	%i4, [%g1 + 8*6*6 + 8*4]
	stx	%i5, [%g1 + 8*6*6 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*5 + 8*0]
	stx	%i1, [%g1 + 8*6*5 + 8*1]
	stx	%i2, [%g1 + 8*6*5 + 8*2]
	stx	%i3, [%g1 + 8*6*5 + 8*3]
	stx	%i4, [%g1 + 8*6*5 + 8*4]
	stx	%i5, [%g1 + 8*6*5 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*4 + 8*0]
	stx	%i1, [%g1 + 8*6*4 + 8*1]
	stx	%i2, [%g1 + 8*6*4 + 8*2]
	stx	%i3, [%g1 + 8*6*4 + 8*3]
	stx	%i4, [%g1 + 8*6*4 + 8*4]
	stx	%i5, [%g1 + 8*6*4 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*3 + 8*0]
	stx	%i1, [%g1 + 8*6*3 + 8*1]
	stx	%i2, [%g1 + 8*6*3 + 8*2]
	stx	%i3, [%g1 + 8*6*3 + 8*3]
	stx	%i4, [%g1 + 8*6*3 + 8*4]
	stx	%i5, [%g1 + 8*6*3 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*2 + 8*0]
	stx	%i1, [%g1 + 8*6*2 + 8*1]
	stx	%i2, [%g1 + 8*6*2 + 8*2]
	stx	%i3, [%g1 + 8*6*2 + 8*3]
	stx	%i4, [%g1 + 8*6*2 + 8*4]
	stx	%i5, [%g1 + 8*6*2 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*1 + 8*0]
	stx	%i1, [%g1 + 8*6*1 + 8*1]
	stx	%i2, [%g1 + 8*6*1 + 8*2]
	stx	%i3, [%g1 + 8*6*1 + 8*3]
	stx	%i4, [%g1 + 8*6*1 + 8*4]
	stx	%i5, [%g1 + 8*6*1 + 8*5]
	restore

	stx	%i0, [%g1 + 8*6*0 + 8*0]
	stx	%i1, [%g1 + 8*6*0 + 8*1]
	stx	%i2, [%g1 + 8*6*0 + 8*2]
	stx	%i3, [%g1 + 8*6*0 + 8*3]
	stx	%i4, [%g1 + 8*6*0 + 8*4]
	stx	%i5, [%g1 + 8*6*0 + 8*5]
	restore

	mov	1, %o0
	sethi	%hi(output), %o1
	or	%o1, %lo(output), %o1
	mov	8*6*8, %o2
	call	write
	 nop

1:
	mov	0, %o0
	call	_exit
	 nop

	.data

	.global	output
output:
	.space	8*6*8
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