[lkml]   [2005]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Factor in buddy allocator alignment requirements in node memory alignment
On Mon, 2005-05-16 at 12:55 -0700, christoph wrote:
> On Mon, 16 May 2005, Dave Hansen wrote:
> > > Because the buddy allocator is complaining about wrongly allocated zones!
> >
> > Just because it complains doesn't mean that anything is actually
> > wrong :)
> >
> > Do you know which pieces of code actually break if the alignment doesn't
> > meet what that warning says?
> I have seen nothing break but 4 MB allocations f.e. will not be allocated
> on a 4MB boundary with a 2 MB zone alignment. The page allocator always
> returnes properly aligned pages but 4MB allocations are an exception?

I wasn't aware there was an alignment exception in the allocator for 4MB
pages. Could you provide some examples?

-- Dave

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-05-16 23:03    [W:0.054 / U:2.064 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site