linux-kernel - [linus:master] [KVM] 92e7d5c83a: kernel-selftests.kvm.triple_fault_event

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Date:   Sat, 3 Dec 2022 22:04:46 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Maxim Levitsky <mlevitsk@...hat.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>,
        <xudong.hao@...el.com>
Subject: [linus:master] [KVM]  92e7d5c83a:
 kernel-selftests.kvm.triple_fault_event_test.fail


Greeting,

FYI, we noticed kernel-selftests.kvm.triple_fault_event_test.fail due to commit (built with gcc-11):

commit: 92e7d5c83aff124f49082585e57939ed24b59c5c ("KVM: x86: allow L1 to not intercept triple fault")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linux-next/master 700e0cd3a5ce6a2cb90d9a2aab729b52f092a7d6]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-2ed09c3b-1_20221128
with following parameters:

	group: kvm

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory

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


If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Link: https://lore.kernel.org/oe-lkp/202212032146.b0347c81-oliver.sang@intel.com


# selftests: kvm: triple_fault_event_test
# ==== Test Assertion Failure ====
#   x86_64/triple_fault_event_test.c:87: false
#   pid=5484 tid=5484 errno=4 - Interrupted system call
#      1	0x0000000000402647: main at triple_fault_event_test.c:87
#      2	0x00007fcc3e4b6189: ?? ??:0
#      3	0x00007fcc3e4b6244: ?? ??:0
#      4	0x0000000000402690: _start at ??:?
#   Unexpected ucall: 0
not ok 52 selftests: kvm: triple_fault_event_test # exit=254


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-6.1.0-rc4-00027-g92e7d5c83aff" of type "text/plain" (165866 bytes)

View attachment "job-script" of type "text/plain" (5805 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (53384 bytes)

View attachment "kernel-selftests" of type "text/plain" (279619 bytes)

View attachment "job.yaml" of type "text/plain" (4890 bytes)

View attachment "reproduce" of type "text/plain" (236 bytes)