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-arVvDxGYbS@https.bugzilla.kernel.org/>
Date:   Thu, 20 Dec 2018 09:10:34 +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

--- Comment #31 from Jan Kara (jack@...e.cz) ---
(In reply to Aneesh Kumar KV from comment #30)
> Dez 19 23:53:25 T1000 kernel: Clean page (index 72, ino 681324, i_size
> 715000, flags 3ffe0000002016) with dirty PTE (pte_val c0000006d3ea9186) on
> unmap!
> 
> Those pte bits value doesn't look correct. We expect the pfn value to be 
> 64k aligned. ie, I should have found the last 4 values to be 0186. What is
> the page size configured? is that 64K?

There's .config attached to this bugzilla. It has:

CONFIG_PPC_4K_PAGES=y
# CONFIG_PPC_64K_PAGES is not set

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