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Wed, 03 Jun 2026 07:33:15 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (smtpav04.wdc07v.mail.ibm.com [10.39.53.231]) by smtprelay01.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6537XECr6161250 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 3 Jun 2026 07:33:14 GMT Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4131758052; Wed, 3 Jun 2026 07:33:14 +0000 (GMT) Received: from smtpav04.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CF72158045; Wed, 3 Jun 2026 07:33:11 +0000 (GMT) Received: from vaibhav?linux.ibm.com (unknown [9.39.22.158]) by smtpav04.wdc07v.mail.ibm.com (Postfix) with SMTP; Wed, 3 Jun 2026 07:33:11 +0000 (GMT) Received: by vaibhav@linux.ibm.com (sSMTP sendmail emulation); Wed, 03 Jun 2026 13:03:09 +0530 From: Vaibhav Jain To: Eric Biggers , linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org Subject: Re: ppc64le kunit test failure: guest_state_buffer_test In-Reply-To: <20260603064225.GC18149@sol> References: <20260603064225.GC18149@sol> Date: Wed, 03 Jun 2026 13:03:09 +0530 Message-ID: <87ecioyt6y.fsf@vajain21.in.ibm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAzMDA2NiBTYWx0ZWRfX37RTbk1hhRB+ HV1zUFFB7z3tk5e91h+iY1Ajnuj8/8/fq3+qxxaAnw4dljedkTo5yo3KcJBCrm5vDWeDhY999Q0 7/shG1aIFWicKs3Cgqjnn3IUT6btKIumO99740MgKNHCJiL8g/jm34K6GDzJhJFqq0Pz6hUNtsW CfXaST6UZS6TI34H1XUKUEibowRpZNfKYXMysQve/B2u/6icLLe62vFkWrVnDVvxUfwBuZ94T7t ibzsRF/feyr9D9WCVFMPruj21oIFCF+bQ4fn0zn6Y841iXzZGbilpgxRofzoNlsoxvnmbjjRqz1 nzKtwQ0JK2t1wXH1yQgURQJVmv3lVfmtkPT+pVjQV1QAWtijHOQ76Mgzc+UZ75+9Nqh90KJd2oy lxZPT7bLW4eWgfp1wYXiqwoNlW+aGEBB+4PHzzi2yEPmz64XBPGf6eAEmQoZTn546ccHu5UiolT Ij0MPpzw+s45ab36+Pw== X-Proofpoint-GUID: 4BjY6n51ydzdBrwulsUZaiNUxu1j8QKX X-Proofpoint-ORIG-GUID: 4BjY6n51ydzdBrwulsUZaiNUxu1j8QKX X-Authority-Analysis: v=2.4 cv=DZknbPtW c=1 sm=1 tr=0 ts=6a1fd8bb cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=p0WdMEafAAAA:8 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=GNRFBLUNPABI2W2ee-4A:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-03_02,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1011 suspectscore=0 impostorscore=0 lowpriorityscore=0 phishscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606030066 Hi Eric, Thanks for trying and reporting this. This kunit test depends on availablility of Qemu commit 5f7d861e("spapr: nested: Add support for reporting Hostwide state counter ") [1] that was merged in v10.0.0. Since you havent mentioned the qemu version used I assume its a version < v10.0.0 . With the qemu patch available you should see this test passing with results similar to as originally described in original cover letter of the patch series at [2] that introduced this kunit test. [1] https://gitlab.com/qemu-project/qemu/-/commit/5f7d861e65d90e0446b8f22a0bc859a5d8058ea6 [2] https://lore.kernel.org/all/20250416162740.93143-1-vaibhav@linux.ibm.com/ Eric Biggers writes: > FYI, the KUnit test arch/powerpc/kvm/test-guest-state-buffer.c is > failing when run in QEMU PPC64LE: > > [ 146.554299][ T1] KTAP version 1^M > [ 146.554348][ T1] # Subtest: guest_state_buffer_test^M > [ 146.554543][ T1] # module: test_guest_state_buffer^M > [ 146.554927][ T1] 1..7^M > [ 146.556873][ T1] ok 1 test_creating_buffer^M > [ 146.558221][ T1] ok 2 test_adding_element^M > [ 146.559532][ T1] ok 3 test_gs_bitmap^M > [ 146.560309][ T1] ok 4 test_gs_parsing^M > [ 146.561246][ T1] ok 5 test_gs_msg^M > [ 146.562116][ T1] ok 6 test_gs_hostwide_msg^M > [ 146.562911][ T428] # test_gs_hostwide_counters: ASSERTION FAILED at arch/powerpc/kvm/test-guest-state-buffer.c:488^M > [ 146.562911][ T428] Expected rc == 0, but^M > [ 146.562911][ T428] rc == -2 (0xfffffffffffffffe)^M > [ 146.563600][ T1] not ok 7 test_gs_hostwide_counters^M > [ 146.563653][ T1] # guest_state_buffer_test: pass:6 fail:1 skip:0 total:7^M > > Tested on next-20260602. I haven't bisected it. > > Note that this test is in the defconfig. > > - Eric > -- Cheers ~ Vaibhav