Re: -git: BUG: unable to handle kernel paging request at c0100248 [CPU hotplug]

["Vegard Nossum" <vegard.nossum@gmail.com>]

On Sun, Jul 27, 2008 at 9:35 PM, Vegard Nossum <vegard.nossum@gmail.com> wrote:
> On Sun, Jul 27, 2008 at 9:23 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
>> On Sun, 27 Jul 2008, Vegard Nossum wrote:
>>> Booting processor 1/1 ip 6000
>>> Initializing CPU#1
>>> [...]
>>> Write protecting the kernel text: 5648k
>>>
>>> So it succeeds because the protection happens much later :-)
>>
>> Patch below fixes the issue. I get it to Linus ASAP.
>
> Nice :)
>
> [...]
>
>> +.section .cpuinit.data,"wa"
>> +.align 4
>> +ENTRY(initial_code)
>> +       .long i386_start_kernel
>> +
>>  .section .text
>>  /*
>>  * Real beginning of normal "text" segment
>>
>
> Hm, isn't there some kind of "section stack" that can be used to
> restore the previous section? .pushsection/.popsection directives?

Oh, never mind :-)

(Sorry for the noise.)


Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036