Desynchronized ncommit

I've noticed this message in my system log over the past few days:

Apr 17 10:14:04 schiele kernel: NFS: desynchronized value of nfs_i.ncommit.

It looks like it started appearing when the following patch was applied to 2.6.21-rc. Any suggestions on what I can do to debug this further?

NFS: Fix a list corruption problem

We must remove the request from whatever list it is currently on
before we
can add it to the dirty list.

index e5d7cac..ad2e91b 100644
@@ -280,8 +280,10 @@ static int nfs_page_mark_flush(struct page *page)
                spin_lock(req_lock);
        }
        spin_unlock(req_lock);
-       if (nfs_set_page_writeback(page) == 0)
+       if (nfs_set_page_writeback(page) == 0) {
+               nfs_list_remove_request(req);
                nfs_mark_request_dirty(req);
+       }
        ret = test_bit(PG_NEED_FLUSH, &req->wb_flags);
        nfs_unlock_request(req);
        return ret;

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Please apply patches 1 - 5 from
http://client.linux-nfs.org/Linux-2.6.x/2.6.21-rc7/
and check that they work for you too.

Trond

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The "Desynchronized ncommit" messages no longer appear, and applications overall seem more stable ("Add/remove software packages" wouldn't start at all, before, and Thunderbird seems a lot happier).

begin:vcard
fn:Chuck Lever
n:Lever;Chuck
org:Oracle Corporation;Corporate Architecture: Linux Projects Group adr:;;1015 Granger Avenue;Ann Arbor;MI;48104;USA email;internet:chuck dot lever at nospam oracle dot com title:Principal Member of Staff
tel;work:+1 248 614 5091
x-mozilla-html:FALSE
version:2.1
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