[Cluster-devel] Re: [gfs2][RFC] readdir caused ls process into D (uninterruptible) state, under testing with Samba 3.0.25

[Steven Whitehouse <swhiteho@redhat.com>]

Hi,

On Mon, 2007-08-20 at 17:36 +0800, rae l wrote:
> On 8/17/07, Steven Whitehouse <swhiteho@redhat.com> wrote:
> ...
> > > the stack trace of the 'D' state `ls`:
> > >
> > >  =======================
> > > ls            D F89B83F8  2200 12018      1 (NOTLB)
> > >        f3eeadd4 00000082 f6a425c0 f89b83f8 f3eead9c f6a425d4 f6f32d80 f573a93c
> > >        00010000 f89b83f3 00000000 c40a2030 c3fa9fa0 c40aaa70 c40aab7c 00000e89
> > >        b2a4b036 000002e4 c40a2030 f3eeae1c 00000000 c3f85e98 f8e11e09 f8e11e0e
> > > Call Trace:
> > >  [<f89b83f8>] gdlm_bast+0x0/0x93 [lock_dlm]
> > >  [<f89b83f3>] gdlm_ast+0x0/0x5 [lock_dlm]
> > >  [<f8e11e09>] holder_wait+0x0/0x8 [gfs2]
> > >  [<f8e11e0e>] holder_wait+0x5/0x8 [gfs2]
> >                 ^^^^ This function doesn't exist in recent kernels, so I
> > guess you are using an older kernel. Which version is it?
> Sorry for the late,
> The kernel I'm testing is 2.6.21.7, just because our testing cluster
> suite is from the last month when cluster-2.01 from here didn't come
> out,
> ftp://sources.redhat.com/pub/cluster/releases/
> 
> So now we were keeping testing on kernel 2.6.21.y series, just for its
> stability, I don't know how about the stability of 2.6.22.y, I haven't
> tested it yet.
> 
> So the problem I said has been fixed in later kernel after 2.6.22,
> please feel free to let me know.
> 
I suspect that it might have been, but I can't say for certain. We've
fixed a number of things which look very similar, but not exactly like
the bug you seem to have hit. In the latest Linus' kernels there is a
fix for a problem in the DLM which it would be worth trying so if you
are in a position to test something more recent, then I would suggest
that as a first course of action.

Let me know if that doesn't solve the problem,

Steve.