linux-kernel - Re: reboot/kexec in 2.6.38

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Message-ID: <BANLkTikZXjfD82DxoahkvUo+26cjvOKZmw@mail.gmail.com>
Date:	Tue, 12 Apr 2011 22:46:25 +0800
From:	Eric Miao <eric.y.miao@...il.com>
To:	Cyril Hrubis <metan@....cz>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Pavel Machek <pavel@....cz>, rpurdie@...ys.net,
	lenz@...wisc.edu, kernel list <linux-kernel@...r.kernel.org>,
	arminlitzel@....de, thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com, utx@...guin.cz,
	zaurus-devel@....linuxtogo.org,
	Marek Vasut <marek.vasut@...il.com>,
	Kexec Mailing List <kexec@...ts.infradead.org>
Subject: Re: reboot/kexec in 2.6.38

On Tue, Apr 12, 2011 at 10:43 PM, Cyril Hrubis <metan@....cz> wrote:
> Hi!
>> >> I think it's config issue. Never heard of this.
>> >
>> > I've just compiled and booted 2.6.38. The kernel boots without problems when
>> > flashed in. But I've had no success with kexec, the last lines I see are:
>> >
>> > Starting new kernel
>>
>> Enable early_printk to a serial port if you can.
>>
>> There is definitely an issue in 2.6.38 where kdump doesn't work, that
>> right now looks like a memblock issue.
>
> Finaly got time to solder serial adapter...
>
> And now, after I configured kernel to print to both ttyS0 serial console and
> tty0 the kexec started to work.

Cool. Please help check why it didn't work, and see if we have something
broken.

>
> --
> metan
>
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