Re: [PATCH v3] mm: make expand_downwards symmetrical to expand_upwards

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

 



On Wed, Apr 20, 2011 at 10:22:04AM -0500, Christoph Lameter wrote:
> There is barely any testing going on at all of this since we have had this
> issue for more than 5 years and have not noticed it. The absence of bug
> reports therefore proves nothing. Code inspection of the VM shows
> that this is an issue that arises in multiple subsystems and that we have
> VM_BUG_ONs in the page allocator that should trigger for these situations.

So ... we've proven that people using these architectures use SLAB
instead of SLUB, don't enable CONFIG_DEBUG_VM and don't use hugepages
(not really a surprise ... nobody's running Oracle on these arches :-)

I don't think that qualifies as "barely any testing".  I think that's
"nobody developing the Linux MM uses one of these architectures".

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
--
To unsubscribe from this list: send the line "unsubscribe linux-parisc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux SoC]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux