linux-kernel - RE: [PATCH] ia64: Make stack VMA anonymous

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Date:   Wed, 1 Aug 2018 15:32:28 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
CC:     Dmitry Vyukov <dvyukov@...gle.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] ia64: Make stack VMA anonymous

> 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@...el.com>

-Tony