Re: specjbb2005 fails with 2.6.29-rc4

From: Linus Torvalds
Date: Wed Feb 11 2009 - 20:36:39 EST




On Thu, 12 Feb 2009, Lin Ming wrote:
>
> Test with Jrockit VM fails. And it works well if OpenJDK is used
> instead.

I suspect maybe it uses hugetlbs?

There were a couple of commits to fix VM_ACCOUNT for hugepage areas
recently. See

- 5a6fe125950676015f5108fb71b2a67441755003: "Do not account for the
address space used by hugetlbfs using VM_ACCOUNT"

- 17c9d12e126cb0de8d535dc1908c4819d712bc68: "Do not account for hugetlbfs
quota at mmap() time if mapping [SHM|MAP]_NORESERVE"

because hugetlb mappings have their own magical VM accounting.

So can you check if current -git fixes it?

Linus
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