AE_NO_HARDWARE_RESPONSE problems

[Andrew Thompson]

Hi,


On my HP Omnibook 6000 I get the following right after boot

acpi_ec0: EcRead: Failed waiting for EC to send data.
    ACPI-0502: *** Error: Handler for [EmbeddedControl] returned AE_NO_HARDWARE_RESPONSE
    ACPI-1303: *** Error: Method execution failed [\\_SB_.PCI0.ISA0.EC0_._Q20] (Node 0xc1350220), AE_NO_HARDWARE_RESPONSE
acpi_ec0: evaluation of GPE query method _Q20 failed - AE_NO_HARDWARE_RESPONSE


etc... I changed the loop on line 829 of acpi_ec.c from 1000 to 10000 and
everything seems to be working fine. Is this a valid fix or will it cause
problems elsewhere? One issue I can see is holding Giant for this length of 
time.



dmesg: 
 http://andy.masaclaw.co.nz/dmesg

dmesg with patch:
 http://andy.masaclaw.co.nz/dmesg-patched

ASL:
 http://andy.masaclaw.co.nz/hp6000.asl 


FreeBSD hudson.fire.org.nz 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Sat Jun 26
16:58:12 NZST 2004     root at hudson.fire.org.nz:/usr/obj/usr/src/sys/HUDSON
i386


--- /sys/dev/acpica/acpi_ec.c   Mon Jun 14 10:52:30 2004
+++ /sys/dev/acpica/acpi_ec.c   Wed Jun 23 13:00:12 2004
@@ -826,7 +826,7 @@
      * command.  First, wait up to 1 ms in chunks of sc->ec_polldelay
      * microseconds.
      */
-    for (i = 0; i < 1000 / sc->ec_polldelay; i++) {
+    for (i = 0; i < 10000 / sc->ec_polldelay; i++) {
        EcStatus = EC_GET_CSR(sc);
        if (EVENT_READY(Event, EcStatus)) {
            Status = AE_OK;