OCFS2 mainline state?

From: Richard Weinberger
Date: Mon Feb 25 2013 - 15:34:00 EST


Hi!

Today I encountered the following problem on v3.8:
[ 28.940032] general protection fault: 0000 [#1] PREEMPT SMP
...
[ 28.984953] Call Trace:
[ 28.986628 [<ffffffffa04cb200>] ocfs2_fast_symlink_readpage+0x70/0x1b0 [ocfs2]
[ 28.988302] [<ffffffff8110dc49>] ? add_to_page_cache_lru+0x29/0x40
[ 28.989942] [<ffffffff8110ddca>] do_read_cache_page+0x7a/0x170
[ 28.991573] [<ffffffff8110def4>] read_cache_page_async+0x14/0x20
[ 28.993212] [<ffffffff8110df09>] read_cache_page+0x9/0x20
[ 28.994827] [<ffffffff81170ae5>] page_getlink.isra.9+0x25/0x80
[ 28.996442] [<ffffffff81170b61>] page_follow_link_light+0x21/0x40
[ 28.998049] [<ffffffff8117090d>] generic_readlink+0x3d/0xa0
[ 28.999653] [<ffffffff8116c0db>] sys_readlinkat+0xfb/0x130
[ 29.001246] [<ffffffff8116c126>] sys_readlink+0x16/0x20
[ 29.002839] [<ffffffff815d8dad>] system_call_fastpath+0x1a/0x1f

To my utter astonishment I found out that the issue is known since August 2012.
And there is also a trivial fix for it.[0]
The said fix found it's way into Oracle Unbreakable Linux very quickly,
but not into mainline.[1]

Now I'm wondering how much Oracle really cares about OCFS2 in mainline?
Maybe there are some more unfixed vulnerabilities?

Not amused,
//richard

[0] http://www.mail-archive.com/ocfs2-devel@xxxxxxxxxxxxxx/msg07774.html
[1] https://oss.oracle.com/pipermail/el-errata/2012-October/003103.html
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