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From: Jung-uk Kim <jkim@FreeBSD.org>
To: Pawel Worach <pawel.worach@gmail.com>
Date: Fri, 16 Nov 2007 18:01:39 -0500
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Cc: freebsd-acpi@FreeBSD.org, freebsd-current@FreeBSD.org
Subject: Re: [Call for Testers] ACPI-CA 20071114
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On Friday 16 November 2007 04:41 pm, Pawel Worach wrote:
> Jung-uk Kim wrote:
> > Please test the following patch on -CURRENT:
> >
> > http://people.freebsd.org/~jkim/acpica-import-20071114.diff.gz
>
> Hi,
>
> Looks good here on a ThinkPad T60 except for a new LOR.
>
> acpi_ibm0: <IBM ThinkPad ACPI Extras> on acpi0
> lock order reversal: (sleepable after non-sleepable)
>   1st 0xc083cb00 LED mtx (LED mtx) @ /usr/src/sys/dev/led/led.c:263
>   2nd 0xc09cc304 ACPI IBM extras (ACPI IBM extras) @
> /usr/src/sys/modules/acpi/acpi_ibm/../../../dev/acpi_support/acpi_i
>bm.c:311 KDB: stack backtrace:

--- >8 --- SKIP --- >8 ---

I have to admit that I haven't really tested anything under 
sys/dev/acpi_support because I don't own any of these laptops. :-(
Anyway, can you test the following?

--- sys/dev/acpi_support/acpi_ibm.c     25 Oct 2007 17:30:18 -0000
+++ sys/dev/acpi_support/acpi_ibm.c     16 Nov 2007 22:43:39 -0000
@@ -300,7 +300,7 @@
 	sc->led_busy = 1;
 	sc->led_state = onoff;
 
-	AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
+	acpi_queue_task(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
 }
 
 static void

Thanks,

Jung-uk Kim