Re: TPM driver breaks S3 suspend

Chris Chiu
2017-12-21T09:43:42Z

On Thu, Dec 21, 2017 at 5:22 PM, Paul Menzel <pmenzel@molgen.mpg.de> wrote:
> Dear Chris,
>
>
> Thank you for bringin gup the issue.
>
>> We have a desktop which has S3 suspend (to RAM) problem due to
>> error messages as follows.
>> [ 198.908282] tpm tpm0: Error (38) sending savestate before suspend
>> [ 198.908289] __pnp_bus_suspend(): tpm_pm_suspend+0x0/0x160 returns 38
>> [ 198.908293] dpm_run_callback(): pnp_bus_suspend+0x0/0x20 returns 38
>> [ 198.908298] PM: Device 00:0b failed to suspend: error 38
>>
>> However, the first suspend after boot is working although it still
>> shows an interesting message during resume.
>> [ 155.789945] tpm tpm0: A TPM error (38) occurred continue selftest
>>
>> The error code 38 in definition is TPM_ERR_INVALID_POSTINIT. I
>> found some explanations which said this error code means that this
>> command was received in the wrong sequence relative to a TPM_Startup
>> command. Don't really know what happens here and how should I deal
>> with this? Any suggestions? Please let me know what else information
>> should I provide.
>
>
> Please provide more information. Tell us your Linux version, attach your
> config and tell us the system name and if you know it the TPM version.

Sorry for the missing information. This is reproducible in kernel 4.14
and latest
4.15-rc2 with all TPM drivers selected. What system name do you need? It's
Acer Desktop Veriton 4410G. The TPM version shows in dmesg is
[ 0.640244] tpm_tis 00:0b: 1.2 TPM (device-id 0xFE, rev-id 71)

Chris