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

From: peterasplund
Date: Mon Apr 29 2013 - 05:38:30 EST

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2013-04-23 18:29 skrev Kent Yoder:

On Tue, Apr 23, 2013 at 10:03 AM, <peterasplund@xxxxxxxxx> wrote:
2013-04-23 16:43 skrev Kent Yoder:

On Tue, Apr 23, 2013 at 04:30:53PM +0200, peterasplund@xxxxxxxxx wrote:

2013-04-11 23:41 skrev Kent Yoder:
>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
>>>>>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?
>
> 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...
>
>Kent
>

Hi Kent, I'm sorry I haven't replied to this message before. I must
have missed it!

root@zepto:/sys/class/misc/tpm0# ll
drwxr-xr-x 3 root root 0 Apr 23 16:20 ./
drwxr-xr-x 3 root root 0 Apr 23 16:20 ../
-r--r--r-- 1 root root 4096 Apr 23 16:26 dev
lrwxrwxrwx 1 root root 0 Apr 23 16:26 device -> ../../../00:08/
drwxr-xr-x 2 root root 0 Apr 23 16:26 power/
lrwxrwxrwx 1 root root 0 Apr 23 16:20 subsystem ->
../../../../../class/misc/
-rw-r--r-- 1 root root 4096 Apr 23 16:20 uevent

root@zepto:/sys/class/misc/tpm0# cat dev
10:224
root@zepto:/sys/class/misc/tpm0# cat device/pcrs (prints nothing
after a delay of a second or so)
root@zepto:/sys/class/misc/tpm0# cat uevent
MAJOR=10
MINOR=224
DEVNAME=tpm0
root@zepto:/sys/class/misc/tpm0# cat device/active
root@zepto:/sys/class/misc/tpm0# cat device/cancel
cat: device/cancel: Permission denied
root@zepto:/sys/class/misc/tpm0# cat device/caps
root@zepto:/sys/class/misc/tpm0# cat device/durations
1000000 4000000 152000000 [adjusted]
root@zepto:/sys/class/misc/tpm0# cat device/enabled
root@zepto:/sys/class/misc/tpm0# cat device/id
IFX0102
PNP0c31
root@zepto:/sys/class/misc/tpm0# cat device/options
root@zepto:/sys/class/misc/tpm0# cat device/owned
root@zepto:/sys/class/misc/tpm0# cat device/pubek
root@zepto:/sys/class/misc/tpm0# cat device/resources
state = active
mem 0xfed40000-0xfed44fff
io 0x4e-0x4f
io 0x1670-0x167f
irq 11
root@zepto:/sys/class/misc/tpm0# cat device/temp_deactivated
root@zepto:/sys/class/misc/tpm0# cat device/timeouts
752000 2000000 752000 752000 [adjusted]
root@zepto:/sys/class/misc/tpm0# cat device/uevent
DRIVER=tpm_tis

To be able to do the 'cat' above, I usually need to restart my
computer, otherwise the files aren't there. That's probably after
I've put the computer in sleep mode (which works if I add tpm_tis to
the module blacklist). Perhaps the same problem is related to this
one:
I just did a grep of my dmesg and saw some new error messages (28)
in it. Perhaps they started occurring after I enabled it in BIOS.

root@zepto:/home/peter# dmesg | grep tpm_
[ 11.369198] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 11.508115] tpm_tis 00:08: Adjusting TPM timeout parameters.
[ 32.560040] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 4320.577827] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 4320.636111] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the timeouts

So the above messages happen at the time you reinsert the module
after a resume?

Kent

Sadly I don't know. Reinserting the module after a resume doesn't really seem to do much, for instance it doesn't recreate the directories I listed/cat above.

But since one of the messages is after 4320 (seconds?) I guess it must be something like that. But I didn't see them when I tried modprobing the module several times, to get the directories in /sys/ back.

/Peter

But this only seems to happen after the tpm module has been unloaded when
going to sleep. I don't get these messages after a reboot:
root@zepto:/sys/class/misc/tpm0# dmesg | grep tpm
[ 12.068202] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 12.212122] tpm_tis 00:08: Adjusting TPM timeout parameters.
[ 33.068050] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 434.500088] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 485.180079] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 511.436081] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 523.412084] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 535.396083] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 550.316068] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 559.164074] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
[ 570.028078] tpm_tis 00:08: tpm_transmit: tpm_send: error -62
/Peter

[ 4320.696081] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the durations
[ 4320.696091] tpm_tis 00:08: Could not get TPM timeouts and durations
[ 9279.692915] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[ 9279.756184] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the timeouts
[ 9279.822186] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the durations
[ 9279.822197] tpm_tis 00:08: Could not get TPM timeouts and durations
[10968.845856] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[10968.904111] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the timeouts
[10968.964100] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the durations
[10968.964111] tpm_tis 00:08: Could not get TPM timeouts and durations
[13304.341746] tpm_tis 00:08: 1.2 TPM (device-id 0xB, rev-id 16)
[13304.400093] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the timeouts
[13304.464134] tpm_tis 00:08: A TPM error (28) occurred attempting
to determine the durations
[13304.464142] tpm_tis 00:08: Could not get TPM timeouts and durations

Thank you,
Peter A

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

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