RNG: Hardware error. hwrng: no data available

Embedded Devices Linux
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1

Since the last update I get the following errors on some Devices:

…
caam_jr 2141000.jr0: 2000025b: CCB: desc idx 2: RNG: Hardware error.
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
…
…
report_ccb_status: 91 callbacks suppressed
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
hwrng: no data available
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
hwrng: no data available
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
hwrng: no data available
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
hwrng: no data available
caam_jr 2141000.jr0: 2000005b: CCB: desc idx 0: RNG: Hardware error.
hwrng: no data available

The errors do not occur with every boot.
Sometimes the error is issued only a few times, sometimes it comes every few seconds.

Can anybody help me with that?

2

Are you using TrustFence and encrypted partitions or locked hardware? => contact Digi Technical Support.

Maybe this NXP help applies:
https://community.nxp.com/t5/i-MX-Processors/RNG-Hardware-error/m-p/612406