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e8c676d1-ec1e-4121-d06e-08dd81c839c2 X-MS-Exchange-CrossTenant-AuthSource: MW4PR10MB5749.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Apr 2025 18:05:12.0697 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ALYkfMAlfQeyPNac+EJc/ae4RokhbS5l4k+FgUD/jE3AeUku5dxis1n3AaqPlSKlhbF0fSDoHkg/GVtJ4SlFXQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR10MB7663 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-22_08,2025-04-22_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 malwarescore=0 spamscore=0 suspectscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2502280000 definitions=main-2504220136 X-Proofpoint-ORIG-GUID: 4NTVUr0laG_mLzC0R0xEqL-KBSCfMI4R X-Proofpoint-GUID: 4NTVUr0laG_mLzC0R0xEqL-KBSCfMI4R On 4/22/25 03:57, Stephen Rothwell wrote: > Hi all, > > After merging the mm-unstable tree, today's linux-next build > (powerpcmpseries_le_defconfig) produced this warning: > > [ 0.000000][ T0] ------------[ cut here ]------------ > [ 0.000000][ T0] WARNING: CPU: 0 PID: 0 at kernel/trace/trace_events.c:596 trace_event_raw_init+0x1b0/0x6d0 > [ 0.000000][ T0] Modules linked in: > [ 0.000000][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.15.0-rc3-05418-g16441530e08c #1 VOLUNTARY > [ 0.000000][ T0] Hardware name: IBM pSeries (emulated by qemu) POWER10 (architected) 0x801200 0xf000006 of:SLOF,HEAD pSeries > [ 0.000000][ T0] NIP: c0000000003efd30 LR: c0000000003f0140 CTR: 0000000000000000 > [ 0.000000][ T0] REGS: c0000000028f7940 TRAP: 0700 Not tainted (6.15.0-rc3-05418-g16441530e08c) > [ 0.000000][ T0] MSR: 8000000002021033 CR: 44000288 XER: 00000000 > [ 0.000000][ T0] CFAR: c0000000003f0144 IRQMASK: 3 > [ 0.000000][ T0] GPR00: c0000000003f0140 c0000000028f7be0 c000000001811100 0000000000000000 > [ 0.000000][ T0] GPR04: 000000000000005b c000000001617716 0000000000000006 c0000000003efc7c > [ 0.000000][ T0] GPR08: c0000000014dd6a8 ffffffffffffffff 000000000000005b 0000000000000000 > [ 0.000000][ T0] GPR12: c0000000003efb80 c000000002aa8000 0000000000000000 00000000019e40b8 > [ 0.000000][ T0] GPR16: 000000007e68eef8 0000000000000001 0000000002d500d0 00000000019e3f38 > [ 0.000000][ T0] GPR20: 0000000000000093 c000000002654c03 0000000000000000 0000000000000093 > [ 0.000000][ T0] GPR24: 0000000000000005 0000000000000000 0000000000000000 0000000000000020 > [ 0.000000][ T0] GPR28: 0000000000000000 c000000002656c68 c000000002654b70 00000000000000bb > [ 0.000000][ T0] NIP [c0000000003efd30] trace_event_raw_init+0x1b0/0x6d0 > [ 0.000000][ T0] LR [c0000000003f0140] trace_event_raw_init+0x5c0/0x6d0 > [ 0.000000][ T0] Call Trace: > [ 0.000000][ T0] [c0000000028f7be0] [c0000000003f0140] trace_event_raw_init+0x5c0/0x6d0 (unreliable) > [ 0.000000][ T0] [c0000000028f7ca0] [c0000000003f2768] event_init+0x68/0x100 > [ 0.000000][ T0] [c0000000028f7d10] [c00000000203e62c] trace_event_init+0xfc/0x4ac > [ 0.000000][ T0] [c0000000028f7e00] [c00000000203d4e0] trace_init+0x6c/0x680 > [ 0.000000][ T0] [c0000000028f7f30] [c0000000020042f8] start_kernel+0x664/0x964 > [ 0.000000][ T0] [c0000000028f7fe0] [c00000000000e99c] start_here_common+0x1c/0x20 > [ 0.000000][ T0] Code: 72d60001 7c8407b4 7c7e1a14 41820430 4bfffca9 2c230000 41820010 3920fffe 7929c010 7f7b4838 2c3b0000 41820064 <0fe00000> 73690001 3be00001 40820014 > [ 0.000000][ T0] ---[ end trace 0000000000000000 ]--- > [ 0.000000][ T0] event sched_skip_cpuset_numa has unsafe dereference of argument 6 Hi, Stephen, Just to verify, does the build have commit 'tracing: Verify event formats that have "%*p.."'[1] or not? I do see linux-next/master has it but just want to first confirm that. Thanks, Libo [1]:https://lore.kernel.org/all/20250327195311.2d89ec66@gandalf.local.home/ > [ 0.000000][ T0] print_fmt: "comm=%s pid=%d tgid=%d ngid=%d mem_nodes_allowed=%*pbl", REC->comm, REC->pid, REC->tgid, REC->ngid, __nodemask_pr_numnodes(REC->mem_allowed_ptr), __nodemask_pr_bits(REC->mem_allowed_ptr) > > Introduced by commit > > 516be5b3418e ("sched/numa: add tracepoint that tracks the skipping of numa balancing due to cpuset memory pinning") >