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Date:   Fri, 30 Nov 2018 05:01:04 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 201685] ext4 file system corruption

https://bugzilla.kernel.org/show_bug.cgi?id=201685

--- Comment #79 from Hao Wei Tee (angelsl@...4.sg) ---
(In reply to NĂ©stor A. Marchesini from comment #78)
> Well, guys, this seems to pass the test, after several reboots every several
> hours of use, I had no more corruptions of my four partitions mdadm raid1.
> The solution was to delete the ext4 folder from my kernel 4.19.5 and copy
> the ext4 folder from my previous kernel 4.18.20 and recompiling the tree
> 4.19.5.
> 
> $ uname -a
> Linux pc-user 4.19.5-gentoo #1 SMP PREEMPT Thu Nov 29 00:45:31 2018 x86_64
> AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux
> 
> I was comparing both folders /fs/ext4 of the 4.18.20 and 4.19.5 trees with
> meld and there are several modifications, unfortunately it exceeds my
> knowledge.
> At least on this side I affirm that the problem is gone, we will see it
> happen with later patches.

If this is the case, perhaps you could bisect fs/ext4 between tags v4.18 and
v4.19?

$ git bisect start v4.19 v4.18 -- fs/ext4

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