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Fri, 10 Jan 2025 06:44:15 +0000 (GMT) Message-ID: Date: Fri, 10 Jan 2025 12:14:13 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-GB From: Venkat Rao Bagalkote To: gregkh@linuxfoundation.org, johannes.berg@intel.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Kernel Warnings at fs/debugfs/file.c 90 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: -T_X5v59pd2R4oT_PdS-Jp6YwTG4tMGT X-Proofpoint-GUID: -T_X5v59pd2R4oT_PdS-Jp6YwTG4tMGT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=744 malwarescore=0 spamscore=0 clxscore=1011 impostorscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 suspectscore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501100052 Greetings!!! Observing Kernel Warnings on kernel 6.13.0-rc6-next-20250109, while running fstests ext4/001. Traces: [  433.607975] ------------[ cut here ]------------ [  433.607984] WARNING: CPU: 2 PID: 32051 at fs/debugfs/file.c:90 __debugfs_file_get+0xcc/0x274 [  433.608002] Modules linked in: 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 cdrom sd_mod sg ibmvscsi ibmveth scsi_transport_srp fuse [  433.608065] CPU: 2 UID: 0 PID: 32051 Comm: check Kdump: loaded Not tainted 6.13.0-rc6-next-20250109 #1 [  433.608072] Hardware name: IBM,8375-42A POWER9 (architected) 0x4e0202 0xf000005 of:IBM,FW950.80 (VL950_131) hv:phyp pSeries [  433.608078] NIP:  c00000000073ce70 LR: c00000000073e69c CTR: c00000000073e658 [  433.608083] REGS: c00000000d367720 TRAP: 0700   Not tainted (6.13.0-rc6-next-20250109) [  433.608089] MSR:  8000000000029033   CR: 44248802  XER: 20040000 [  433.608102] CFAR: c00000000073cdec IRQMASK: 0 [  433.608102] GPR00: c00000000073e69c c00000000d3679c0 c000000001644500 c0000000040a4f80 [  433.608102] GPR04: 0000000000000000 0000000000000007 0000000000040004 c00000000302a800 [  433.608102] GPR08: 0000000000400000 0000000000000001 0000000000000000 0000000000002000 [  433.608102] GPR12: c00000000073e658 c00000000f7cdf00 0000000000000000 0000000000000000 [  433.608102] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [  433.608102] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [  433.608102] GPR24: c000000002b92dc8 c0000000953af100 0000000000000002 c0000000953af140 [  433.608102] GPR28: 0000000000000000 c0000000016148b9 c0000000953af100 c0000000040a4f80 [  433.608161] NIP [c00000000073ce70] __debugfs_file_get+0xcc/0x274 [  433.608168] LR [c00000000073e69c] open_proxy_open+0x44/0x1c4 [  433.608175] Call Trace: [  433.608178] [c00000000d367a10] [c0000000007a10b4] selinux_file_open+0xdc/0x110 [  433.608186] [c00000000d367aa0] [c00000000060b640] do_dentry_open+0x2ec/0x720 [  433.608195] [c00000000d367af0] [c00000000060d370] vfs_open+0x44/0x128 [  433.608201] [c00000000d367b20] [c000000000628e8c] do_open+0x354/0x4fc [  433.608208] [c00000000d367b80] [c00000000062fc60] path_openat+0x16c/0x344 [  433.608215] [c00000000d367c00] [c00000000062fef4] do_filp_open+0xbc/0x19c [  433.608222] [c00000000d367d40] [c00000000060da20] do_sys_openat2+0x100/0x150 [  433.608229] [c00000000d367db0] [c00000000060de20] sys_openat+0x84/0xe0 [  433.608235] [c00000000d367e10] [c0000000000337e8] system_call_exception+0x138/0x330 [  433.608244] [c00000000d367e50] [c00000000000d05c] system_call_vectored_common+0x15c/0x2ec [  433.608252] --- interrupt: 3000 at 0x7fff899ad0c4 [  433.608259] NIP:  00007fff899ad0c4 LR: 00007fff899ad0c4 CTR: 0000000000000000 [  433.608264] REGS: c00000000d367e80 TRAP: 3000   Not tainted (6.13.0-rc6-next-20250109) [  433.608269] MSR:  800000000280f033   CR: 44248404  XER: 00000000 [  433.608284] IRQMASK: 0 [  433.608284] GPR00: 000000000000011e 00007fffce9eecd0 00007fff89ac7200 ffffffffffffff9c [  433.608284] GPR04: 000001003b659d40 0000000000000241 00000000000001b6 0000000000000000 [  433.608284] GPR08: 0000000000000020 0000000000000000 0000000000000000 0000000000000000 [  433.608284] GPR12: 0000000000000000 00007fff89beab20 000001003b661f30 0000000121cd87b8 [  433.608284] GPR16: 0000000121cd89bc 0000000121cd8a50 0000000000000004 0000000121cd89b8 [  433.608284] GPR20: 0000000000000241 00007fff89be3b30 000001003b659d40 0000000000000000 [  433.608284] GPR24: 0000000000000241 00007fffce9eee50 0000000000000001 0000000000000003 [  433.608284] GPR28: 0000000000000000 0000000121cd8260 000001003b5d6480 00007fffce9eed10 [  433.608342] NIP [00007fff899ad0c4] 0x7fff899ad0c4 [  433.608346] LR [00007fff899ad0c4] 0x7fff899ad0c4 [  433.608349] --- interrupt: 3000 [  433.608352] Code: 38600000 38210050 7c6307b4 eba1ffe8 ebe1fff8 4e800020 60000000 60000000 7c890034 fb810030 7c9c2378 5529d97e <0b090000> 2c240000 41820188 7c0802a6 [  433.608372] ---[ end trace 0000000000000000 ]--- This issue got introduced by the commit: f8f25893a477a4da4414c3e40ddd51d77fac9cfc. Reverting the above commit, test case passes with out warnings. Regards, Venkat.