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Kroah-Hartman , Andrew Morton , Shuah Khan , Jeff Xu , Joel Fernandes , Pranith Kumar , David Herrmann Subject: Re: selftests: memfd: run_hugetlbfs_test.sh - invalid opcode: 0000 [#1] PREEMPT SMP Message-ID: References: Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: MW4PR04CA0237.namprd04.prod.outlook.com (2603:10b6:303:87::32) To BY5PR10MB4196.namprd10.prod.outlook.com (2603:10b6:a03:20d::23) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BY5PR10MB4196:EE_|CH0PR10MB4988:EE_ X-MS-Office365-Filtering-Correlation-Id: b5d493a3-5d76-41cf-aee2-08dafe6bdf5f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-24_17,2023-01-24_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 phishscore=0 mlxlogscore=999 adultscore=0 mlxscore=0 suspectscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301250001 X-Proofpoint-GUID: ZTAnSg3KV3M6Wo13CfaplfIbRWv1cfCE X-Proofpoint-ORIG-GUID: ZTAnSg3KV3M6Wo13CfaplfIbRWv1cfCE Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On 01/05/23 15:14, Naresh Kamboju wrote: > While running selftests: memfd: run_hugetlbfs_test.sh on qemu_i386 and i386 the > following invalid opcode was noticed on stable-rc 6.1 and 6.0. > > This is always reproducible on stable-rc 6.1 and 6.0 with qemu_i386 and i386. > Build, config and test log details provided in the below links [1]. Hello Naresh, I have tried to create this issue a few times without success. Since I do not have i386 HW, I am using qemu_i386. If I use the supplied config, my kernel does not boot. I then try to modify config options which I think are not relevant. By the time I get to a config that will boot, I can not recreate the issue. :( Just curious if you have any suggestions? Or, Wondering if anyone else has suggestions on how to proceed? -- Mike Kravetz > > Reported-by: Linux Kernel Functional Testing > > # selftests: memfd: run_hugetlbfs_test.sh > [ 111.866742] run_hugetlbfs_t (1023): drop_caches: 3 > [ 111.892484] invalid opcode: 0000 [#1] PREEMPT SMP > [ 111.893089] CPU: 2 PID: 1026 Comm: memfd_test Tainted: G > N 6.1.4-rc1 #1 > [ 111.894015] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), > BIOS 1.12.0-1 04/01/2014 > [ 111.895048] EIP: hugetlb_file_setup.cold+0x0/0x33 > [ 111.895597] Code: ff e9 07 f3 26 ff 0f 0b c7 04 24 c8 ee dd c9 e8 > 25 47 ff ff b8 ea ff ff ff e9 ac f8 26 ff 0f 0b 0f 0b 0f 0b 0f 0b 0f > 0b 0f 0b <0f> 0b 64 a1 98 48 3a ca c6 05 f3 42 22 ca 01 8b 90 d4 03 00 > 00 05 > [ 111.897716] EAX: c4957128 EBX: 00000000 ECX: 00000020 EDX: 00000000 > [ 111.898431] ESI: 80000004 EDI: 00000005 EBP: c552bf04 ESP: c552bee4 > [ 111.899218] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010212 > [ 111.899991] CR0: 80050033 CR2: 00000000 CR3: 0528b000 CR4: 003506d0 > [ 111.900774] Call Trace: > [ 111.901072] __ia32_sys_memfd_create+0x196/0x220 > [ 111.901616] __do_fast_syscall_32+0x77/0xd0 > [ 111.902119] do_fast_syscall_32+0x32/0x70 > [ 111.902620] do_SYSENTER_32+0x15/0x20 > [ 111.903134] entry_SYSENTER_32+0x98/0xf6 > [ 111.903701] EIP: 0xb7ef1549 > [ 111.904034] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 > 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f > 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 > 8d 76 > [ 111.906124] EAX: ffffffda EBX: 0804b486 ECX: 80000004 EDX: 080493de > [ 111.906902] ESI: b7ccf220 EDI: b7dc58e0 EBP: bfe56cf8 ESP: bfe56c8c > [ 111.907637] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000292 > [ 111.908502] Modules linked in: sch_fq_codel fuse configfs [last > unloaded: test_strscpy(N)] > [ 111.909502] ---[ end trace 0000000000000000 ]--- > [ 111.910064] EIP: hugetlb_file_setup.cold+0x0/0x33 > [ 111.910638] Code: ff e9 07 f3 26 ff 0f 0b c7 04 24 c8 ee dd c9 e8 > 25 47 ff ff b8 ea ff ff ff e9 ac f8 26 ff 0f 0b 0f 0b 0f 0b 0f 0b 0f > 0b 0f 0b <0f> 0b 64 a1 98 48 3a ca c6 05 f3 42 22 ca 01 8b 90 d4 03 00 > 00 05 > [ 111.912785] EAX: c4957128 EBX: 00000000 ECX: 00000020 EDX: 00000000 > [ 111.913518] ESI: 80000004 EDI: 00000005 EBP: c552bf04 ESP: c552bee4 > [ 111.914259] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010212 > [ 111.915104] CR0: 80050033 CR2: 00000000 CR3: 0528b000 CR4: 003506d0 > # ./run_hugetlbfs_test.sh: line 60: 1026 Segmentation fault > ./memfd_test hugetlbfs > # opening: ./mnt/memfd > # fuse: DONE > ok 3 selftests: memfd: run_hugetlbfs_test.sh > > [1] > https://lkft.validation.linaro.org/scheduler/job/6022150#L2079 > https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/build/v6.1.3-208-ga31425cbf493/testrun/13974189/suite/log-parser-test/tests/ > https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/build/v6.1.3-208-ga31425cbf493/testrun/13974189/suite/log-parser-test/test/check-kernel-invalid-opcode/details/ > > metadata: > git_ref: linux-6.1.y > git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc > git_sha: a31425cbf493ef8bc7f7ce775a1028b1e0612f32 > git_describe: v6.1.3-208-ga31425cbf493 > kernel_version: 6.1.4-rc1 > kernel-config: > https://storage.tuxsuite.com/public/linaro/lkft/builds/2JrzvZc223pctlAxVhCIebJ8q0w/config > build-url: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/pipelines/738268273 > artifact-location: > https://storage.tuxsuite.com/public/linaro/lkft/builds/2JrzvZc223pctlAxVhCIebJ8q0w > toolchain: gcc-11 > vmlinux: https://storage.tuxsuite.com/public/linaro/lkft/builds/2JrzvZc223pctlAxVhCIebJ8q0w/vmlinux.xz > System.map: https://storage.tuxsuite.com/public/linaro/lkft/builds/2JrzvZc223pctlAxVhCIebJ8q0w/System.map > > -- > Linaro LKFT > https://lkft.linaro.org