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From: Vivek Goyal <vgoyal@redhat.com>
To: "Huang, Ying" <ying.huang@intel.com>
Cc: nigel@nigel.suspend2.net,
	Kexec Mailing List <kexec@lists.infradead.org>,
	linux-kernel@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Pavel Machek <pavel@ucw.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-pm@lists.linux-foundation.org
Subject: Re: [PATCH -mm 1/2] kexec jump -v11: kexec jump
Date: Fri, 13 Jun 2008 14:00:59 -0400	[thread overview]
Message-ID: <20080613180059.GA4906@redhat.com> (raw)
In-Reply-To: <1213319040.20431.8.camel@caritas-dev.intel.com>

On Fri, Jun 13, 2008 at 09:04:00AM +0800, Huang, Ying wrote:
> On Thu, 2008-06-12 at 15:20 -0400, Vivek Goyal wrote:
> > On Tue, Jun 10, 2008 at 03:15:04PM +0800, Huang, Ying wrote:
> > > This patch provides an enhancement to kexec/kdump. It implements
> > > the following features:
> > > 
> > > - Backup/restore memory used by the original kernel before/after
> > >   kexec.
> > > 
> > > - Save/restore CPU state before/after kexec.
> > > 
> > > The features of this patch can be used as a general method to call
> > > program in physical mode (paging turning off). This can be used to
> > > call BIOS code under Linux.
> > > 
> > > 
> > 
> > Hi Huang,
> > 
> > I was testing these patches and I get following error on my machine.
> > 
> > Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> > Suspending console(s) (use no_console_suspend to debug)
> > PM: Device i8042 failed to freeze: error -22
> > Restarting tasks ... done.
> > 
> > Any idea why keyboard controller would not freeze?
> 
> Which kernel version do you use?
> 

2.6.26-rc5-mm1.

> Does original hibernation work? It can be setup easily. Just add
> following parameters to kernel command line:
> 

Ok, I found that in my config CONFIG_HIBERNATION was not enabled. After
enabling CONFIG_HIBERNATION, both suspend to disk and kjump started
working.

Does that mean there is some dependency on code under CONFIG_HIBERNATION.
If yes, I think this dependency should be resolved during compile time.
May be addtional config option (CONFIG_KEXEC_JUMP), which also selects
the CONFIG_HIBERNATION automatically etc...

Thanks
Vivek

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kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: "Huang, Ying" <ying.huang@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Pavel Machek <pavel@ucw.cz>,
	nigel@nigel.suspend2.net, "Rafael J. Wysocki" <rjw@sisk.pl>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org,
	linux-pm@lists.linux-foundation.org,
	Kexec Mailing List <kexec@lists.infradead.org>
Subject: Re: [PATCH -mm 1/2] kexec jump -v11: kexec jump
Date: Fri, 13 Jun 2008 14:00:59 -0400	[thread overview]
Message-ID: <20080613180059.GA4906@redhat.com> (raw)
In-Reply-To: <1213319040.20431.8.camel@caritas-dev.intel.com>

On Fri, Jun 13, 2008 at 09:04:00AM +0800, Huang, Ying wrote:
> On Thu, 2008-06-12 at 15:20 -0400, Vivek Goyal wrote:
> > On Tue, Jun 10, 2008 at 03:15:04PM +0800, Huang, Ying wrote:
> > > This patch provides an enhancement to kexec/kdump. It implements
> > > the following features:
> > > 
> > > - Backup/restore memory used by the original kernel before/after
> > >   kexec.
> > > 
> > > - Save/restore CPU state before/after kexec.
> > > 
> > > The features of this patch can be used as a general method to call
> > > program in physical mode (paging turning off). This can be used to
> > > call BIOS code under Linux.
> > > 
> > > 
> > 
> > Hi Huang,
> > 
> > I was testing these patches and I get following error on my machine.
> > 
> > Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> > Suspending console(s) (use no_console_suspend to debug)
> > PM: Device i8042 failed to freeze: error -22
> > Restarting tasks ... done.
> > 
> > Any idea why keyboard controller would not freeze?
> 
> Which kernel version do you use?
> 

2.6.26-rc5-mm1.

> Does original hibernation work? It can be setup easily. Just add
> following parameters to kernel command line:
> 

Ok, I found that in my config CONFIG_HIBERNATION was not enabled. After
enabling CONFIG_HIBERNATION, both suspend to disk and kjump started
working.

Does that mean there is some dependency on code under CONFIG_HIBERNATION.
If yes, I think this dependency should be resolved during compile time.
May be addtional config option (CONFIG_KEXEC_JUMP), which also selects
the CONFIG_HIBERNATION automatically etc...

Thanks
Vivek

  parent reply	other threads:[~2008-06-13 18:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-10  7:15 [PATCH -mm 1/2] kexec jump -v11: kexec jump Huang, Ying
2008-06-10  7:15 ` Huang, Ying
2008-06-12 19:20 ` Vivek Goyal
2008-06-12 19:20 ` Vivek Goyal
2008-06-12 19:20   ` Vivek Goyal
2008-06-13  1:04   ` Huang, Ying
2008-06-13  1:04     ` Huang, Ying
2008-06-13 18:00     ` Vivek Goyal
2008-06-13 18:00     ` Vivek Goyal [this message]
2008-06-13 18:00       ` Vivek Goyal
2008-06-16  1:52       ` Huang, Ying
2008-06-16  1:52         ` Huang, Ying
2008-06-16  1:52       ` Huang, Ying
2008-06-13  1:04   ` Huang, Ying
  -- strict thread matches above, loose matches on Subject: below --
2008-06-10  7:15 Huang, Ying

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