From: David Miller <davem@davemloft.net>
To: nitin.m.gupta@oracle.com
Cc: akpm@linux-foundation.org, dingel@linux.vnet.ibm.com,
schwidefsky@de.ibm.com, kirill.shutemov@linux.intel.com,
sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] sparc64: Fix pagetable freeing for hugepage regions
Date: Thu, 28 Jul 2016 21:00:48 -0700 (PDT) [thread overview]
Message-ID: <20160728.210048.165773321219658930.davem@davemloft.net> (raw)
In-Reply-To: <1466719639-143815-2-git-send-email-nitin.m.gupta@oracle.com>
From: Nitin Gupta <nitin.m.gupta@oracle.com>
Date: Thu, 23 Jun 2016 15:05:36 -0700
> 8M pages now allocate page tables till PMD level only.
> So, when freeing page table for 8M hugepage backed region,
> make sure we don't try to access non-existent PTE level.
>
> Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
The manner in which you have submitted this change breaks
bisectability.
The "problem" you are fixing here is introduced by you in patch #1.
You need to combine these two changes together, otherwise there is
an intermediate state where the kernel is broken by your changes.
prev parent reply other threads:[~2016-07-29 4:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-23 22:05 [PATCH v2 1/2] sparc64: Trim page tables for 8M hugepages Nitin Gupta
2016-06-23 22:05 ` [PATCH v2 2/2] sparc64: Fix pagetable freeing for hugepage regions Nitin Gupta
2016-07-29 4:00 ` David Miller [this message]
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