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Message-ID: <692fafae9842a9b15b7b4a033bb7dc800784d4aa.camel@surriel.com>
Subject: Re: [PATCH 3/3] hugetlbfs: replace hugetlb_vma_lock with
 invalidate_lock
From:   Rik van Riel <riel@surriel.com>
To:     kernel test robot <lkp@intel.com>, linux-kernel@vger.kernel.org
Cc:     oe-kbuild-all@lists.linux.dev, kernel-team@meta.com,
        linux-mm@kvack.org, akpm@linux-foundation.org,
        muchun.song@linux.dev, mike.kravetz@oracle.com, leit@meta.com,
        willy@infradead.org
Date:   Mon, 25 Sep 2023 15:22:29 -0400
In-Reply-To: <202309250923.NEPT0ip2-lkp@intel.com>
References: <20230922190552.3963067-4-riel@surriel.com>
         <202309250923.NEPT0ip2-lkp@intel.com>
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On Mon, 2023-09-25 at 10:04 +0800, kernel test robot wrote:
> Hi,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on akpm-mm/mm-everything]
> [also build test ERROR on linus/master v6.6-rc3 next-20230921]
> [If your patch is applied to the wrong git tree, kindly drop us a
> note.
> And when submitting patch, we suggest to use '--base' as documented
> in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]

OK, so I have a fix for patch 3/3 that gets rid of the
compile error, but the libhugetlbfs test cases show that
patch 3/3 opens up a condition where resv_hugepages 
underflows.

I have not figured out the cause of that yet, but
patches 1 & 2 seem to survive all tests fine.

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