On Wed, 2020-10-14 at 19:57 +0200, Dirk Gouders wrote: > On my laptop the check introduced with 55707d531af62b (tpm_tis: Add a > check for invalid status) triggered the warning (output below). > > So, my laptop seems to be a candidate for testing. I'm afraid this is a known problem on a wide range of TIS TPMs ... it's fixed by the patch set I'm trying to get upstream: https://lore.kernel.org/linux-integrity/20201001180925.13808-1-James.Bottomley@xxxxxxxxxxxxxxxxxxxxx/ But in the meantime, it's harmless. The TIS code at the point in the trace is trying to send a TPM2_GetCapability() command which fails because the locality isn't listening, but the design of that command is only to trigger an interrupt to probe the interrupt handling nothing else depends on it succeeding. James
