From: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
To: Luiz Capitulino <luizcap@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Jann Horn <jannh@google.com>, Pedro Falcato <pfalcato@suse.de>,
David Hildenbrand <david@kernel.org>,
Jakub Matena <matenajakub@gmail.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [REGRESSION] mremap() fails VMA expansion when VM_MIXEDMAP is set
Date: Fri, 23 Oct 2026 15:28:34 +0100 [thread overview]
Message-ID: <attuz_R1tZo6y1fX@gremlin> (raw)
In-Reply-To: <538f7c6f-3e16-4ab9-9b79-232b34fb4d3e@redhat.com>
On Fri, Oct 23, 2026 at 08:15:17AM -0400, Luiz Capitulino wrote:
>
>
> On 10/23/26 4:18 AM, Lorenzo Stoakes (ARM) wrote:
> > I'll dig in + get back to you.
>
> Thanks Lorenzo, I really appreciate it.
You're welcome!
This report looks valid, essentially a pure expand should be allowed for mixed
mappings (with mremap() having already asserted it is a valid expansion).
Writing a fix now.
--
Cheers, Lorenzo
next prev parent reply other threads:[~2026-10-23 14:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 2:31 [REGRESSION] mremap() fails VMA expansion when VM_MIXEDMAP is set Luiz Capitulino
2026-10-23 7:16 ` Vlastimil Babka (SUSE)
2026-10-23 8:19 ` Lorenzo Stoakes (ARM)
2026-10-23 12:16 ` Luiz Capitulino
2026-10-23 12:13 ` Luiz Capitulino
2026-10-23 13:00 ` Pedro Falcato
2026-10-23 18:16 ` Luiz Capitulino
2026-10-23 8:18 ` Lorenzo Stoakes (ARM)
2026-10-23 12:15 ` Luiz Capitulino
2026-10-23 14:28 ` Lorenzo Stoakes (ARM) [this message]
2026-10-24 2:31 ` sashiko-bot
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