linux-kernel - [lkp-robot] [tpm] b008bd39b1: kmsg.tpm_tpm#:A_TPM_error(#)occurred_attempting_get

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Date:   Wed, 27 Dec 2017 10:55:32 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Jason Gunthorpe <jgg@...pe.ca>
Cc:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp-robot] [tpm]  b008bd39b1:
 kmsg.tpm_tpm#:A_TPM_error(#)occurred_attempting_get_random


FYI, we noticed the following commit (built with gcc-7):

commit: b008bd39b1c0e32818ecb0ad86f7afc2a3160899 ("tpm: Move Linux RNG connection to hwrng")
git://git.infradead.org/users/jjs/linux-tpmdd next

in testcase: vm-scalability
with following parameters:

	runtime: 300s
	size: 1T
	test: msync-mt
	cpufreq_governor: performance

test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us.
test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/


on test machine: 4 threads Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz with 4G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

[    5.903660] tpm_tis 00:05: 1.2 TPM (device-id 0xFE, rev-id 70)
[    5.934271] tpm tpm0: A TPM error (7) occurred attempting to read a pcr value
[    5.941471] tpm tpm0: TPM is disabled/deactivated (0x7)
[    5.953053] tpm tpm0: A TPM error (7) occurred attempting get random


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Xiaolong

View attachment "config-4.15.0-rc3-00012-gb008bd3" of type "text/plain" (163807 bytes)

View attachment "job-script" of type "text/plain" (7087 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (22636 bytes)

View attachment "vm-scalability" of type "text/plain" (24602 bytes)

View attachment "job.yaml" of type "text/plain" (4737 bytes)

View attachment "reproduce" of type "text/plain" (11977 bytes)