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Re: [BUG] File system corruption with 4.4-rc3 and beyond

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On Tue, Dec 22, 2015 at 4:09 PM, Steven Rostedt <rostedt@goodmis.org> wrote:
>
> Since it seemed very reliable, I started my bisect. It came down to this
> patch:
>
> From 578270bfbd2803dc7b0b03fbc2ac119efbc73195 Mon Sep 17 00:00:00 2001
> From: Ming Lei <ming.lei@canonical.com>
> Date: Tue, 24 Nov 2015 10:35:29 +0800
> Subject: [PATCH] block: fix segment split

We *just* fixed this. It was pretty subtle, and the debugging went on
for several days. But the fixed got applied to the block tree earlier
today, and I just pulled it only 15 minutes ago and pushed it out just
now.

So check current -git, it should work for you.

(And if you care about the particular fix: it's commit 23688bf4f830:
"block: ensure to split after potentially bouncing a bio").

And yes, the way to trigger it seems to be to run a 32-bit kernel and have PAE.

               Linus
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Re: [BUG] File system corruption with 4.4-rc3 and beyond Linus Torvalds <torvalds@linux-foundation.org> - 2015-12-23 01:20 +0100
  Re: [BUG] File system corruption with 4.4-rc3 and beyond Steven Rostedt <rostedt@goodmis.org> - 2015-12-23 02:30 +0100

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