On Tue, Feb 16, 2021 at 09:26:49AM +0100, Paul Menzel wrote: > Dear Jarkko, > > > Am 16.02.21 um 09:17 schrieb Jarkko Sakkinen: > > From: Lukasz Majczak <lma@xxxxxxxxxxxx> > > > > This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2 > > (SLB 9670): > > > > [ 4.324298] TPM returned invalid status > > [ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f > > > > Background > > ========== > > > > TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO > > Interface Locality Usage per Register, Table 39 Register Behavior Based on > > Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns > > 0xFF in case of lack of locality. The described situation manifests itself > > with the following warning trace: > > Did you miss to paste the trace? > > […] > > > Kind regards, > > Paul There is partial trace, which I took from the Lukasz patch. IMHO that is sufficient. And I have no means to generate the full trace anyway. /Jarkko
