From: Matthew Wilcox <willy@infradead.org>
To: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Zi Yan <ziy@nvidia.com>, Kairui Song <ryncsn@gmail.com>,
Jan Kara <jack@suse.cz>, David Hildenbrand <david@kernel.org>,
Kiryl Shutsemau <kas@kernel.org>,
Chris Arges <carges@cloudflare.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH] mm/filemap: __filemap_add_folio() restore index before retrying
Date: Tue, 28 Jul 2026 14:22:05 +0100 [thread overview]
Message-ID: <amis_VNEmkifOAoI@casper.infradead.org> (raw)
In-Reply-To: <562fbfa6-dd6d-0b6a-2461-ed2ff1173bc8@google.com>
On Mon, Jul 27, 2026 at 10:24:14PM -0700, Hugh Dickins wrote:
> Production was suffering from rare SIGILLs and SIGSEGVs, executable text
> found a page away from where it belonged, !folio_contains() bug hit when
> debug enabled: symptoms not seen since this patch went in.
That can't have been fun to find. Thanks, Hugh!
> Fixes: 200a89c159a7 ("mm/filemap: use xas_try_split() in __filemap_add_folio()")
> Signed-off-by: Hugh Dickins <hughd@google.com>
> Cc: stable@vger.kernel.org
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
next prev parent reply other threads:[~2026-07-28 13:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-28 5:24 [PATCH] mm/filemap: __filemap_add_folio() restore index before retrying Hugh Dickins
2026-07-28 10:24 ` Kiryl Shutsemau
2026-07-28 13:22 ` Matthew Wilcox [this message]
2026-07-28 15:29 ` Zi Yan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=amis_VNEmkifOAoI@casper.infradead.org \
--to=willy@infradead.org \
--cc=akpm@linux-foundation.org \
--cc=carges@cloudflare.com \
--cc=david@kernel.org \
--cc=hughd@google.com \
--cc=jack@suse.cz \
--cc=kas@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ryncsn@gmail.com \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.