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Thu, 13 Feb 2025 05:51:23 +0000 (GMT) Message-ID: <6f43bd29-d72b-4a39-b931-7b1b47c7cc06@linux.vnet.ibm.com> Date: Thu, 13 Feb 2025 11:21:22 +0530 Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-GB To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-ext4@vger.kernel.org, fstests@vger.kernel.org From: Venkat Rao Bagalkote Subject: [next-20250212] FStests generic/451 on EXT4 FS resulting in kernel OOPs Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: l_Hr_fWDNLwDD9rkdCqusqc-aXGi54_p X-Proofpoint-ORIG-GUID: l_Hr_fWDNLwDD9rkdCqusqc-aXGi54_p X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-13_02,2025-02-11_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 priorityscore=1501 mlxlogscore=690 impostorscore=0 malwarescore=0 spamscore=0 suspectscore=0 mlxscore=0 bulkscore=0 phishscore=0 lowpriorityscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502130040 Greetings!!! I am observing kernel OOPs, while running FStests generic/451 on EXT4 with linux-next kernel(next-20250212) on IBM Power Servers. Issue is seen on: next-20250212 Issue not seen on: next-20250210 Traces: [ 2977.768678] run fstests generic/451 at 2025-02-12 16:42:14 [ 3001.242006] list_add double add: new=c00000000e2398c8, prev=c00000000e2398c8, next=c0000000c1f2f0b8. [ 3001.242047] ------------[ cut here ]------------ [ 3001.242052] kernel BUG at lib/list_debug.c:35! [ 3001.242059] Oops: Exception in kernel mode, sig: 5 [#1] [ 3001.242065] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=8192 NUMA pSeries [ 3001.242072] Modules linked in: overlay dm_zero dm_thin_pool dm_persistent_data dm_bio_prison dm_snapshot dm_bufio dm_flakey ext4 mbcache jbd2 loop dm_mod nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack bonding nf_defrag_ipv6 nf_defrag_ipv4 tls ip_set rfkill nf_tables nfnetlink pseries_rng aes_gcm_p10_crypto crypto_simd vmx_crypto xfs sr_mod sd_mod cdrom sg ibmvscsi ibmveth scsi_transport_srp fuse [last unloaded: scsi_debug] [ 3001.242165] CPU: 26 UID: 0 PID: 894003 Comm: kworker/u228:17 Not tainted 6.14.0-rc2-next-20250212 #1 [ 3001.242174] Hardware name: IBM,8375-42A POWER9 (architected) 0x4e0202 0xf000005 of:IBM,FW950.80 (VL950_131) hv:phyp pSeries [ 3001.242183] Workqueue: loop0 loop_workfn [loop] [ 3001.242194] NIP:  c00000000090d528 LR: c00000000090d524 CTR: 00000000007088ec [ 3001.242201] REGS: c0000000e5adfa70 TRAP: 0700   Not tainted (6.14.0-rc2-next-20250212) [ 3001.242208] MSR:  800000000282b033   CR: 2800024f  XER: 00000009 [ 3001.242229] CFAR: c000000000224238 IRQMASK: 1 [ 3001.242229] GPR00: c00000000090d524 c0000000e5adfd10 c000000001657500 0000000000000058 [ 3001.242229] GPR04: c000001179a87c88 c000001179a96000 c0000000e5adfb58 0000001177810000 [ 3001.242229] GPR08: 0000000000000027 0000000000000000 0000000000000000 0000000000000001 [ 3001.242229] GPR12: c000000002a49cd0 c00000000f75ff00 c0000000001abf00 c0000000fda72fc0 [ 3001.242229] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3001.242229] GPR20: c000000007acbc00 0000000004208060 c00000000e239880 fffffffffffffef7 [ 3001.242229] GPR24: 0000000000000402 c0000000924b8fc0 c0000000c1f2f07c c0000000c1f2f000 [ 3001.242229] GPR28: c0000000c1f2f0b8 c00000000e2398c8 c00000000e2398c8 c0000000c1f2f0b8 [ 3001.242309] NIP [c00000000090d528] __list_add_valid_or_report+0x158/0x15c [ 3001.242318] LR [c00000000090d524] __list_add_valid_or_report+0x154/0x15c [ 3001.242324] Call Trace: [ 3001.242327] [c0000000e5adfd10] [c00000000090d524] __list_add_valid_or_report+0x154/0x15c (unreliable) [ 3001.242336] [c0000000e5adfd90] [c0080000073c359c] loop_process_work+0x594/0x630 [loop] [ 3001.242344] [c0000000e5adfe40] [c00000000019dc5c] process_one_work+0x1fc/0x4bc [ 3001.242354] [c0000000e5adfef0] [c00000000019ebec] worker_thread+0x344/0x508 [ 3001.242362] [c0000000e5adff90] [c0000000001ac024] kthread+0x12c/0x14c [ 3001.242370] [c0000000e5adffe0] [c00000000000df98] start_kernel_thread+0x14/0x18 [ 3001.242377] Code: 4b916cf9 60000000 0fe00000 7c0802a6 7c641b78 3c62ffe5 7fe6fb78 7fc5f378 386343a0 f8010090 4b916cd1 60000000 <0fe00000> 3c4c00d5 38429fd4 fbe1fff8 [ 3001.242407] ---[ end trace 0000000000000000 ]--- [ 3001.284444] pstore: backend (nvram) writing error (-1) [ 3001.284452] [ 3002.284455] Kernel panic - not syncing: Fatal exception [ 3002.431023] Rebooting in 10 seconds.. Regards, Venkat.