linux-ext4 - [Bug 193431] inline_data + journal_data == segfaults/buserrors in userspace mmap

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Message-ID: <bug-193431-13602-UJQM9TIAuk@https.bugzilla.kernel.org/>
Date:   Mon, 30 Jan 2017 16:07:04 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 193431] inline_data + journal_data == segfaults/buserrors in
 userspace mmap

https://bugzilla.kernel.org/show_bug.cgi?id=193431

Peter Rabbitson <rabbit@...bit.us> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |INSUFFICIENT_DATA

--- Comment #5 from Peter Rabbitson <rabbit@...bit.us> ---
But it *is* ext4 specific - in
https://bugzilla.kernel.org/show_bug.cgi?id=193431#c3 I repeatably demonstrate
different behavior of a chroot depending solely on whether a fs is mounted with
data=journal or without. That is with a userspace that is as new as it gets (
debian stretch-to-be ).

In the coming days I will try to distill this down further to a standalone
program, but the chance is high I will fail: my C-fu is virtually nonexistent.

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