linux-ext4 - [Bug 201631] WARNING: CPU: 11 PID: 29593 at fs/ext4/inode.c:3927 .ext4_set_page

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Message-ID: <bug-201631-13602-vgwy47pQyP@https.bugzilla.kernel.org/>
Date:   Wed, 07 Nov 2018 22:09:13 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 201631] WARNING: CPU: 11 PID: 29593 at fs/ext4/inode.c:3927
 .ext4_set_page_dirty+0x70/0xb0

https://bugzilla.kernel.org/show_bug.cgi?id=201631

Theodore Tso (tytso@....edu) changed:

           What    |Removed                     |Added
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                 CC|                            |tytso@....edu

--- Comment #2 from Theodore Tso (tytso@....edu) ---
Can you reproduce this?   

And you may also want to send a report to linux-mm@...ck.org, since although it
was tripped in ext4_set_page_dirty, the WARN_ON check which is it doing are
fundamentally page specific, so this may very well be an mm problem:


static int ext4_set_page_dirty(struct page *page)
{
        WARN_ON_ONCE(!PageLocked(page) && !PageDirty(page));
        WARN_ON_ONCE(!page_has_buffers(page));
        return __set_page_dirty_buffers(page);
}

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