Gentoo Archives: gentoo-user

From: Mark Knecht <markknecht@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Heads-up: Several kernel versions have severe EXT4 data corruption bug
Date: Sun, 28 Oct 2012 17:14:28
Message-Id: CAK2H+eeg6gQ1KkWdnTdBtb6=y_FOa-r5GeE0aQNjA9XhRQONZQ@mail.gmail.com
In Reply to: Re: [gentoo-user] Heads-up: Several kernel versions have severe EXT4 data corruption bug by Volker Armin Hemmann
1 On Sat, Oct 27, 2012 at 12:16 PM, Volker Armin Hemmann
2 <volkerarmin@××××××××××.com> wrote:
3 > Am Freitag, 26. Oktober 2012, 01:34:35 schrieb Neil Bothwick:
4 >> On Thu, 25 Oct 2012 15:10:17 -0500, Dale wrote:
5 >> > Or just don't update the kernel until it is fixed. After all, if the
6 >> > kernel you are using works and is not a serious security problem, just
7 >> > use it for a while. They will fix it pretty soon I'm sure.
8 >>
9 >> Several versions are affected, it's not a new issue, just a newly
10 >> discovered one. That in itself indicates the likelihood of being affected
11 >> by it, considering how many boxes use ext4 with these kernel versions.
12 >
13 > since only two persons ever hit it, it is a pretty save bet that this bug is
14 > so uncommon that you should not waste any sleep over it.
15 >
16 > --
17 > #163933
18 >
19
20 For fear of leading anyone down a path that eventually causes them
21 problems I won't attempt to communicate the root cause or fixes but
22 there is new information, and a potential patch verified by the only
23 person to see this problem, about what causes the corruption. Read the
24 thread if this makes any difference in your life. Don't worry about it
25 if it doesn't.
26
27 Basically, it's apparently driven by mount options and something the
28 OP (of the lkml thread) did which most users are unlikely IMO to ever
29 try.
30
31 - Mark