linux-kernel - [LKP] [tpm] b885537f7e: kmsg.tpm_tpm#:A_TPM_error(-#)occurred_attempting_to_determine_the

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Date:   Wed, 5 Dec 2018 13:01:44 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     James Bottomley <James.Bottomley@...senPartnership.com>,
        Stefan Berger <stefanb@...ux.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [LKP] [tpm]  b885537f7e:
 kmsg.tpm_tpm#:A_TPM_error(-#)occurred_attempting_to_determine_the_timeouts

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

commit: b885537f7e920dd4e72e6170cf39f7117465d3f9 ("tpm: call tpm2_flush_space() on error in tpm_try_transmit()")
git://git.infradead.org/users/jjs/linux-tpmdd nested

in testcase: ftq
with following parameters:

	nr_task: 100%
	samples: 6000ss
	test: cache
	freq: 20
	ucode: 0xb00002e
	cpufreq_governor: powersave

test-description: The FTQ benchmarks measure hardware and software interference or 'noise' on a node from the applications perspective.
test-url: https://github.com/rminnich/ftq


on test machine: 192 threads Intel(R) Xeon(R) CPU E7-8890 v4 @ 2.20GHz with 512G memory

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




2018-11-30 23:04:39 ./ftq_cache -f 20 -n 6000 -t 192 -a 327680
ticks per ns 2.19471



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,
Rong Chen

View attachment "config-4.20.0-rc2-00034-gb885537" of type "text/plain" (168529 bytes)

View attachment "job-script" of type "text/plain" (4463 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (26140 bytes)

View attachment "ftq" of type "text/plain" (84 bytes)

View attachment "job.yaml" of type "text/plain" (3800 bytes)

View attachment "reproduce" of type "text/plain" (314 bytes)