[tpm2] Re: Error: "Could not initialize TCTI file" when calling tpm2_nvreadpublic

[tpm2] Re: Error: "Could not initialize TCTI file" when calling tpm2_nvreadpublic

[Tadeusz Struk]

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On 6/1/20 12:19 AM, Chenxi Z wrote:
> ~$ tpm2_nvreadpublic
> 
> ** (process:3426476): CRITICAL **: 23:52:45.971: CreateConnection expected to return 1 handles, received 2
> WARNING:tcti:src/tss2-tcti/tctildr.c:62:tcti_from_init() TCTI init for function 0x7f5a0003da10 failed with a0001
> WARNING:tcti:src/tss2-tcti/tctildr.c:92:tcti_from_info() Could not initialize TCTI named: tcti-abrmd
> ERROR:tcti:src/tss2-tcti/tctildr-dl.c:150:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-tabrmd.so.0
> 0x1c00002:
> ... ...
> 
> if I do a restart "service tpm2-abrmd restart", then this issue can be resolved. I would like to resolve this without using the workaround.

What do you get when you run "service tpm2-abrmd status" before calling tpm2_nvreadpublic?

[tpm2] Re: Error: "Could not initialize TCTI file" when calling tpm2_nvreadpublic

[Chenxi Z]

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Thanks Tadeusz for helping me look into this issue.
Below is the log i got.

$ service tpm2-abrmd status
Redirecting to /bin/systemctl status tpm2-abrmd.service
● tpm2-abrmd.service - TPM2 Access Broker and Resource Management Daemon
     Loaded: loaded (/etc/systemd/system/tpm2-abrmd.service; enabled; vendor preset: disabled)
     Active: active (running) since Mon 2020-06-01 01:05:27 PDT; 13h ago
   Main PID: 3544664 (tpm2-abrmd)
         IO: 0B read, 0B written
      Tasks: 6
     Memory: 2.0M
        CPU: 4.194s
     CGroup: /system.slice/tpm2-abrmd.service
             └─3544664 /usr/sbin/tpm2-abrmd

Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.