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From: "Luck, Tony" <tony.luck@intel.com>
Subject: RE: [PATCH] ia64: Make stack VMA anonymous
Date: Wed, 1 Aug 2018 15:32:28 +0000
Message-ID: <3908561D78D1C84285E8C5FCA982C28F7D38B551@ORSMSX110.amr.corp.intel.com>
References: <20180801130801.30095-1-kirill.shutemov@linux.intel.com>
In-Reply-To: <20180801130801.30095-1-kirill.shutemov@linux.intel.com>
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To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Andrew Morton <akpm@linux-foundation.org>, Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dmitry Vyukov <dvyukov@google.com>, Oleg Nesterov <oleg@redhat.com>, Andrea Arcangeli <aarcange@redhat.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>

> IA64 allocates stack in a custom way. Stack has to be marked as
> anonymous otherwise the process will be killed with SIGBUS on the first
> access to the stack.
>
> Add missing vma_set_anonymous().

That does the trick. Applied this patch on top of -rc7 and ia64 boots again=
.

Tested-by: Tony Luck <tony.luck@intel.com>

-Tony