linux-ext4 - [Bug 203107] Bad page map in process during boot

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Message-ID: <bug-203107-13602-9poDJptzpK@https.bugzilla.kernel.org/>
Date:   Tue, 02 Apr 2019 13:00:04 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 203107] Bad page map in process during boot

https://bugzilla.kernel.org/show_bug.cgi?id=203107

--- Comment #2 from echto1@...il.com ---
Thank you.

On April 2, 2019 3:33:49 AM PDT, bugzilla-daemon@...zilla.kernel.org wrote:
>https://bugzilla.kernel.org/show_bug.cgi?id=203107
>
>--- Comment #1 from Jan Kara (jack@...e.cz) ---
>Switching to email...
>
>On Fri 29-03-19 20:46:22, bugzilla-daemon@...zilla.kernel.org wrote:
>> https://bugzilla.kernel.org/show_bug.cgi?id=203107
>> 
>>             Bug ID: 203107
>>            Summary: Bad page map in process during boot
>>            Product: File System
>>            Version: 2.5
>>     Kernel Version: 5.0.5
>>           Hardware: All
>>                 OS: Linux
>>               Tree: Mainline
>>             Status: NEW
>>           Severity: normal
>>           Priority: P1
>>          Component: ext4
>>           Assignee: fs_ext4@...nel-bugs.osdl.org
>>           Reporter: echto1@...il.com
>>         Regression: No
>> 
>> Error occurs randomly at boot after upgrading kernel from 5.0.0 to
>5.0.4.
>> 
>> https://justpaste.it/387uf
>
>I don't think this is an ext4 error. Sure this is an error in file
>mapping
>of libblkid.so.1.1.0 (which is handled by ext4) but the filesystem has
>very
>little to say wrt how or which PTEs are installed. And the problem is
>that
>invalid PTE (dead000000000100) is present in page tables. So this looks
>more like a problem in MM itself. Adding MM guys to CC.
>
>                                                                Honza
>
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