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Message-ID: <3E300BCE.9080909@alvie.com>
Date: Thu, 23 Jan 2003 15:35:42 +0000
From: Alvaro Lopes <alvieboy@alvie.com>
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To: "Grover, Andrew" <andrew.grover@intel.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: [ACPI] 2.5.58 hangs at boot
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Hi Andrew, all.

I have the same problem here with 2.5.57/8/9 with a Toshiba 2410 Laptop. 
Very funny also. The exact system lockup varies according to printk's 
inserted in the code.

>Can you stick a printk in ev_sci_handler and see if that's being called
>repeatedly?
>
Yes it is.

do_IRQ() is called for irq line 9, calls handle_IRQ_event() which then 
calls acpi_irq and finally ev_sci_handler().

This repeats 'ad infinitum'. Didn't wait for more than a few minutes, 
but it looks like it will.

The interrupts are handled at acpi_ev_gpe_detect (), which returns 1. At 
this point in_irq() returns 0x00010000 (or 0x00001000, don't have a 
serial console :/)

Any ideas ??? Need some more debugging ?

Funny enough, without the printk's it usually hangs at 
create_workqueue(), while doing wait_for_completion() - seems the kernel 
thread simply fails to get run.

-- 

?lvaro Lopes 
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