linux-kernel - Re: [PATCH v2] mm: khugepaged: Fix kernel BUG in hpage_collapse_scan

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Message-Id: <20230418142843.4ef62be30f529458344fa0e0@linux-foundation.org>
Date:   Tue, 18 Apr 2023 14:28:43 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Ivan Orlov <ivan.orlov0322@...il.com>
Cc:     Zach O'Keefe <zokeefe@...gle.com>, Yang Shi <shy828301@...il.com>,
        himadrispandya@...il.com, linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org, linux-mm@...ck.org,
        skhan@...uxfoundation.org,
        syzbot+9578faa5475acb35fa50@...kaller.appspotmail.com,
        Mike Kravetz <mike.kravetz@...cle.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: [PATCH v2] mm: khugepaged: Fix kernel BUG in
 hpage_collapse_scan_file

On Mon, 17 Apr 2023 22:28:51 +0400 Ivan Orlov <ivan.orlov0322@...il.com> wrote:

> Tested today on the latest rc7, the bug still exists.

OK, thanks.  I'll send this patch upstream during the next merge window. 
If you, Zach or someone else decides to remove SCAN_STORE_FAILED and
perhaps those WARN_ON_ONCE()es then we can address these things later.