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

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Message-ID: <20080415162533.GA7354@localhost.ift.unesp.br>
Date:	Tue, 15 Apr 2008 13:25:33 -0300
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	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 17:25:45 -0300, Carlos R. Mafra wrote:
> 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.


>From what Mark Lord said in his comments #33 to #35 in 
http://bugzilla.kernel.org/show_bug.cgi?id=10117
it appears that this is a much older regression, from april 2007.

So this is a regression, but not from 2.6.24 (although somehow
it never hit me before). I don't know about the policy of closing
regressions that come from way before the previous kernel version, 
if there is any. Then I will let you manage the bugzilla #10117
as you see fit (but I will be "there" to hopefuly test any 
proposed patches).

Thanks,
Carlos
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