linux-kernel - Re: [Bug #10117] 2.6.25-current-git sometimes hangs on boot

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Message-ID: <20080413202545.GA7111@localhost.ift.unesp.br>
Date:	Sun, 13 Apr 2008 17:25:45 -0300
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Soeren Sonnenburg <kernel@....de>
Subject: Re: [Bug #10117] 2.6.25-current-git sometimes hangs on boot -
	dual-core Sony Vaio

On Sun 13.Apr'08 at 20:56:41 +0200, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.24.  Please verify if it still should be listed.
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=10117
> Subject		: 2.6.25-current-git sometimes hangs on boot - dual-core Sony Vaio
> Submitter	: Soeren Sonnenburg <kernel@....de>
> Date		: 2008-02-23 18:55 (51 days old)
> References	: http://lkml.org/lkml/2008/2/23/263
> 		  http://lkml.org/lkml/2008/4/4/41
> 		  http://lkml.org/lkml/2008/4/9/69

Soeren said it no longer happens to him in http://lkml.org/lkml/2008/4/9/53
but unfortunately it still happens with me using -rc9. So I kidnapped his 
bugzilla report :-)

In the bugzilla entry I said earlier today that "hpet=disable" apparently
makes the problem go away (42 boots OK so far, whereas without this
boot option it hangs ~90% using vga=6 and ~10% using vga=0x0364)

I tried to bisect it, but sometimes in pre 2.6.25-rc1 kernels it takes
30 boots before the first hang to occur. So bisection is not reliable...

If someone proposes a patch I will be glad to test it!

PS: The similar bug in buzilla 10377 also appears to be "fixed"
by using hpet=disable, see comment #17 in that bug.
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