Re: [tpmdd-devel] tpm_tis driver failed to suspend, error -62

[peterasplund]

2013-04-02 16:03 skrev Kent Yoder:
> Hi Peter,
>
> On Mon, Apr 1, 2013 at 4:17 PM,  <peterasplund@xxxxxxxxx> wrote:
> > 2013-03-28 14:12 skrev Peter.Huewe@xxxxxxxxxxxx:
> > > What also might be worth a look - in your bugzilla it states:
> > > [ 0.225891] pnp 00:0a: Plug and Play ACPI device, IDs IFX0102 
> > > PNP0c31
> > > (active)
> > > [ 9.150673] tpm_tis 00:0a: 1.2 TPM (device-id 0xB, rev-id 16)
> > > [ 9.292148] tpm_tis 00:0a: Adjusting TPM timeout parameters.
> > > [ 10.084067] tpm_tis 00:0a: A TPM error (7) occurred attempting to
> > > read a pcr
> > > value
> > > [ 10.084077] tpm_tis 00:0a: TPM is disabled/deactivated (0x7)
> > >
> > >
> > > Can you perhaps try to enable your TPM in the BIOS? It's quite 
> > > often
> > > hidden under "embedded security device" or "system security".
> > > Quite often you have to have a bios password set to access these
> > > settings.
> > > If your system does not have bios support for TPMs, please tell me 
> > > so
> > > and I'll try to help you out.
> >
> > I've enabled it in BIOS now, and the output seems to be a bit
> > different. Not too uplifting though...
> >
> > root@zepto:/home/peter# dmesg | grep tpm
> > [   14.631662] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
> > [   14.748276] tpm_tis 00:08: Adjusting TPM timeout parameters.
> > [   34.908128] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
> > [  125.992108] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
> > [  212.908502] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
> > root@zepto:/home/peter# tpm_version
> > Tspi_Context_Connect failed: 0x00003011 - layer=tsp, code=0011 (17),
> > Communication failure
> > root@zepto:/home/peter# tcsd -f
> > TCSD TDDL ioctl: (25) Inappropriate ioctl for device
> > TCSD TDDL Falling back to Read/Write device support.
> > TCSD TDDL ERROR: write to device /dev/tpm0 failed: Timer expired
> > TCSD TCS ERROR: TCS GetCapability failed with result = 0x1087
>
>   Can you cat /sys/class/misc/tpm0/device/timeouts? Ivan Pryvalov
> reported that his TPM showed values that were too small to keep from
> causing timeouts waiting on TPM commands, but too big to trigger the
> driver's code to scale them.  (He saw 12000 for the 3 timeout 
> values.)
Hi Kent

The values I'm seeing are:

root@zepto:~# cat /sys/class/misc/tpm0/device/timeouts
752000 2000000 752000 752000 [adjusted]

So I guess these are within a normal range?

Thanks,
Peter

>  If you're seeing similar values, can you try the attached patch?
>
> Thanks,
> Kent
>
> > /Peter A
> >
> >
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