linux-kernel - Re: [KVM] e923b0537d: kernel-selftests.kvm.rseq

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Message-ID: <Yvq9wzXNF4ZnlCdk@google.com>
Date:   Mon, 15 Aug 2022 21:42:27 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     Gavin Shan <gshan@...hat.com>, Paolo Bonzini <pbonzini@...hat.com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Andrew Jones <andrew.jones@...ux.dev>,
        LKML <linux-kernel@...r.kernel.org>, kvm@...r.kernel.org,
        lkp@...ts.01.org, lkp@...el.com, xudong.hao@...el.com,
        regressions@...ts.linux.dev
Subject: Re: [KVM]  e923b0537d: kernel-selftests.kvm.rseq_test.fail

On Mon, Aug 15, 2022, kernel test robot wrote:
> commit: e923b0537d28e15c9d31ce8b38f810b325816903 ("KVM: selftests: Fix target thread to be migrated in rseq_test")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

...

> # selftests: kvm: rseq_test
> # ==== Test Assertion Failure ====
> #   rseq_test.c:278: i > (NR_TASK_MIGRATIONS / 2)
> #   pid=49599 tid=49599 errno=4 - Interrupted system call
> #      1	0x000000000040265d: main at rseq_test.c:278
> #      2	0x00007fe44eed07fc: ?? ??:0
> #      3	0x00000000004026d9: _start at ??:?
> #   Only performed 23174 KVM_RUNs, task stalled too much?
> # 
> not ok 56 selftests: kvm: rseq_test # exit=254

...

> # Automatically generated file; DO NOT EDIT.
> # Linux/x86_64 5.19.0-rc6 Kernel Configuration
> #
> CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-3) 11.3.0"
> CONFIG_CC_IS_GCC=y
> CONFIG_GCC_VERSION=110300
> CONFIG_CLANG_VERSION=0
> CONFIG_AS_IS_GNU=y
> CONFIG_AS_VERSION=23800
> CONFIG_LD_IS_BFD=y
> CONFIG_LD_VERSION=23800
> CONFIG_LLD_VERSION=0

Assuming 23800 == 2.38, this is a known issue.

https://lore.kernel.org/all/20220810104114.6838-1-gshan@redhat.com