Re: [PATCH] slub: Avoid direct compaction if possible

[David Rientjes]

On Mon, 17 Jun 2013, Roman Gushchin wrote:

> > FWIW, there were some compaction locking related patches merged
> > around 3.7. See 2a1402aa044b55c2d30ab0ed9405693ef06fb07c and follow ups.
> 
> Thanks, Michal.
> I've already tried to backport some of those patches, but it didn't help
> (may be it wasn't enough).

They certainly aren't enough, the kernel you're running suffers from a 
couple different memory compaction issues that were fixed in 3.7.  I 
couldn't sympathize with your situation more, I faced the same issue 
because of thp and not slub (we use slab).

> I'll try to reproduce the issue on raw 3.9.
> 

Thanks.  If you need to go back to 3.4, try using these, they 
significantly helped our issues:

bb13ffeb9f6bfeb301443994dfbf29f91117dfb3
627260595ca6abcb16d68a3732bac6b547e112d6
c89511ab2f8fe2b47585e60da8af7fd213ec877e
62997027ca5b3d4618198ed8b1aba40b61b1137b
a9aacbccf3145355190d87f0df1731fb84fdd8c8
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/