Re: [tpmdd-devel] tpm_tis driver failed to suspend, error -62
From: Kent Yoder
Date: Thu Apr 11 2013 - 17:43:50 EST
On Sat, Apr 06, 2013 at 06:00:59PM +0200, peterasplund@xxxxxxxxx wrote:
> 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
> >>>[ 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
> >>>[ 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
> >>>hidden under "embedded security device" or "system security".
> >>>Quite often you have to have a bios password set to access these
> >>>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
> 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?
Yes, these look normal. So it seems you can send commands to the TPM
up until you try to suspend? Can you try to cat other files like
/sys/class/misc/tpm0/device/pcrs? This is the simplest way to send some
command to the TPM...
> > If you're seeing similar values, can you try the attached patch?
> >>/Peter A
> >>Own the Future-Intel® Level Up Game Demo Contest 2013
> >>Rise to greatness in Intel's independent game demo contest.
> >>Compete for recognition, cash, and the chance to get your game
> >>on Steam. $5K grand prize plus 10 genre and skill prizes.
> >>Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d
> >>tpmdd-devel mailing list
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/