linux-kernel - reiserfs broken "unknown uniqueness" (commit c1eaa26b671299b3ec01d40c6c71ee19a4f81517)

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Date:	Sun, 4 Jan 2009 03:24:36 -0800
From:	"Robin H. Johnson" <robbat2@...too.org>
To:	linux-kernel@...r.kernel.org
Cc:	viro@...iv.linux.org.uk, robbat2@...too.org
Subject: reiserfs broken "unknown uniqueness" (commit
	c1eaa26b671299b3ec01d40c6c71ee19a4f81517)

(Please CC, not on LKML).

Reiserfs broken recently, git bisect narrows it down to commit
c1eaa26b671299b3ec01d40c6c71ee19a4f81517.

[   52.365262] ReiserFS: warning: vs-500: unknown uniqueness -30719
...
[27630.378732] ReiserFS: warning: vs-500: unknown uniqueness -30720
(and many more of the same with one of those two numbers on the end).

Manifests as various file creation operations failing, like:
(my /usr/src is on reiserfs with tail-packing enabled)
cd /usr/src && git clone --local file://`pwd`/linux linux.testcase

Git fails at creating the .config file in this example.

I had originally thought that my filesystem was corrupt, but fsck showed me to
be clean, and a different kernel caused the problem to go away.

I don't know enough of inode internals to understand why it broke like this.
(Anybody looking to confirm the string, it's from the uniqueness2type function
defined in "include/linux/reiserfs_fs.h").

-- 
Robin Hugh Johnson
Gentoo Linux Developer & Infra Guy
E-Mail     : robbat2@...too.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

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