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

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Message-ID: <20080415204500.GD1677@cs181133002.pp.htv.fi>
Date:	Tue, 15 Apr 2008 23:45:00 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	"Carlos R. Mafra" <crmafra2@...il.com>,
	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 Tue, Apr 15, 2008 at 10:33:38PM +0200, Rafael J. Wysocki wrote:
> On Tuesday, 15 of April 2008, Carlos R. Mafra wrote:
> > 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).
> 
> I dropped the bug from the list of recent regressions, so it doesn't block
> bug #9832 any more.  However, this still is a bug and regression, so the
> bugzilla entry remains open.

Soerens original report was a 2.6.25 regression.

And #10377 that was closed as a duplicate of #10117 was also reported as 
a 2.6.25 regression.

#10117 seems to suffer from the common disease of people hijacking an 
existing bug, but Soeren's issue that was what was originally tracked in 
#10117 is (or was) a 2.6.25 regression.

If other people have similar problems that already existed in 2.6.24 
these are different issues that should be tracked in their own bugs.

> Thanks,
> Rafael

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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