Re: bugs in page colouring code

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 06/14/2012 02:03 PM, Rik van Riel wrote:
> On 06/14/2012 04:58 PM, H. Peter Anvin wrote:
>> On 06/14/2012 05:57 AM, Rik van Riel wrote:
>>>
>>> However, I expect that on x86 many applications expect
>>> MAP_FIXED to just work, and enforcing that would be
>>> more trouble than it's worth.
>>>
>>
>> MAP_FIXED, is well, fixed.  It means that performance be screwed, if we
>> can fulfill the request we MUST do so.
> 
> My codebase now has a separate arch_align_addr function
> for x86, which is surprisingly similar to the generic
> one :)

I am much more skeptical to disabling page coloring in the !PF_RANDOMIZE
case when no address hint is proposed.  I would like to at least try
running without it, perhaps with a chicken bit in a sysctl.

	-hpa

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]