[cmucl-imp] Re: Running on Linux kernels compiled with COMPAT_BRK disabled

[Raymond Toy]

On 2/1/10 4:26 AM, Stelian Ionescu wrote:
> On Mon, 2010-02-01 at 09:09 +0100, Stelian Ionescu wrote:
>   
>> On Sun, 2010-01-31 at 21:15 -0500, Raymond Toy wrote:
>>     
>>> On 1/31/10 3:45 PM, Stelian Ionescu wrote:
>>>       
>>>> When run on a kernel compiled without COMPAT_BRK CMUCL segfaults, so I
>>>> copied the kludge used by SBCL - check the current personality, and if
>>>> necessary, enable ADDR_NO_RANDOMIZE and re-exec itself.
>>>> Patch attached.
>>>>
>>>>   
>>>>         
>>> Thanks for the patch. 
>>>
>>> Did you try compiling CMUCL with this patch?  I ask because it doesn't
>>> compile for me.  __x86 doesn't exist on my Suse box.  (There are a
>>> couple of other issues like p=name.release, but name is a pointer, and
>>> check_personality references argv and envp, which don't exist.)  I don't
>>> think my Suse box has such a kernel, so I can't test the result either.
>>>       
>> I did compile it and it worked, but probably because __x86 isn't
>> defined. I'll fix this later today
>>     
> New patch attached.
>
>   
Thanks for the new patch.  I had done basically the same thing to get it
to compile on my SuSE box, so I was wondering what I was missing in your
original patch.

I'll apply this soon, but I'll need you to test the result since I don't
have a kernel without COMPAT_BRK.

Ray