linux-kernel - Re: [tpmdd-devel] [REGRESSION] Suspend fails because of TPM modules

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Date:	Mon, 29 Nov 2010 17:22:45 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Michael Doube <michael@...be.net>
Cc:	Debora Velarde <debora@...ux.vnet.ibm.com>,
	Rajiv Andrade <srajiv@...ux.vnet.ibm.com>,
	Marcel Selhorst <m.selhorst@...rix.com>,
	"Rafael J. Wysocki" <rjw@...e.com>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: [tpmdd-devel] [REGRESSION] Suspend fails because of TPM
 modules

On Mon, 29 Nov 2010, Michael Doube wrote:

> > I just found out, that if I modprobe tpm_tis module with
> > 
> > 	itpm=1
> > 
> > parameter, the problem doesn't happen any more and suspend works fine.
> 
> Not here unfortunately. Suspend still fails with itpm=1, and I get this
> in my logs
> 
> Nov 29 15:52:32 doris kernel: [  649.110923] tpm_tis 00:09: 1.2 TPM (device-id 0xB, rev-id 16)
> Nov 29 15:52:32 doris kernel: [  649.110929] tpm_tis 00:09: Intel iTPM workaround enabled
> Nov 29 15:54:34 doris kernel: [  771.360067] tpm_tis 00:09: tpm_transmit: tpm_send: error -62

That looks like a completely separate issue -- in your case, 
wait_for_stat() times out while waiting for _READY.

Is this regressions from older kernels as well?

> Looks for a string that is absent from my Vaio SZ650, so the workaround
> is not applied (and if it was, it probably wouldn't work, right?).

Yeah, it's workaround for symptoms different from than what you are 
seeing.

-- 
Jiri Kosina
SUSE Labs, Novell Inc.
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