>Number:         36615
>Category:       kern
>Synopsis:       acpitz(4) prints "-273.-3C"
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 08 10:20:00 +0000 2007
>Originator:     Tetsuya Isaki
>Release:        NetBSD 3.0.2
>Organization:
>Environment:
No uname because I have not had the board any longer.

>Description:
I found a strange message in dmesg on VIA C7 board
using 3.0.2/i386.

	acpitz0: critical 60.0C passive -273.-3C
	                                ^^^^^^^^

It has 2 problem, I think.
The first one is format issue ("-273.-3").
And second one is that -273.3C is -0.1K. That is,
it's called as acpitz_celcius_string(-1).

>How-To-Repeat:

>Fix:
How about this?  This patch is for -current.
However, I cannot confirm it, because I have not
had the board any longer.

--- sys/dev/acpi/acpi_tz.c	1 Jul 2007 07:37:12 -0000	1.22
+++ sys/dev/acpi/acpi_tz.c	8 Jul 2007 05:38:18 -0000
@@ -314,9 +314,10 @@
 acpitz_celcius_string(int dk)
 {
 	static char buf[10];
+	int dc;
 
-	snprintf(buf, sizeof(buf), "%d.%d", (dk - ATZ_ZEROC) / 10,
-	    (dk - ATZ_ZEROC) % 10);
+	dc = dk - ATZ_ZEROC;
+	snprintf(buf, sizeof(buf), "%d.%d", dc / 10, abs(dc) % 10);
 
 	return buf;
 }

--- sys/dev/acpi/acpi_tz.c	1 Jul 2007 07:37:12 -0000	1.22
+++ sys/dev/acpi/acpi_tz.c	8 Jul 2007 06:02:03 -0000
@@ -491,7 +491,7 @@
 			    acpitz_celcius_string(sc->sc_zone.hot));
 		if (sc->sc_zone.psv != ATZ_TMP_INVALID)
 			printf(" passive %sC",
-			    acpitz_celcius_string(sc->sc_zone.tmp));
+			    acpitz_celcius_string(sc->sc_zone.psv));
 		printf("\n");
 	}