Greetings!

This report is similar to https://lore.kernel.org/all/20240530163812.33b0ab78@yea/ but on v6.11-rc1 and the attached .config I get this every time at boot:

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alloc_tag was not set
WARNING: CPU: 1 PID: 0 at include/linux/alloc_tag.h:130 alloc_tagging_slab_free_hook+0x17f/0x1ec
Modules linked in:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc1-P3 #2
Hardware name: LENOVO 2007F2G/2007F2G, BIOS 79ETE7WW (2.27 ) 03/21/2011
EIP: alloc_tagging_slab_free_hook+0x17f/0x1ec
Code: 4f 0f 85 d8 fe ff ff eb 7e c6 05 ca 76 8e d8 01 68 49 10 68 d8 89 cb 89 45 e4 e8 28 ca e0 ff 8b 45 e4 89 d9 8b 55 ec 83 c4 04 <0f> 0b 8b 5c da 04 e9 28 ff ff ff e8 b1 26 72 00 8b 55 ec e9 6b ff
EAX: 000000a0 EBX: 00000000 ECX: 00000000 EDX: f728bef8
ESI: c12b9f34 EDI: 00000001 EBP: c12b9f18 ESP: c12b9ef0
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00210296
CR0: 80050033 CR2: 00000000 CR3: 18a1e000 CR4: 000006f0
Call Trace:
 <SOFTIRQ>
 ? show_regs+0x4e/0x5c
 ? alloc_tagging_slab_free_hook+0x17f/0x1ec
 ? __warn+0x88/0x164
 ? alloc_tagging_slab_free_hook+0x17f/0x1ec
 ? alloc_tagging_slab_free_hook+0x17f/0x1ec
 ? report_bug+0xa0/0x11c
 ? exc_overflow+0x3c/0x3c
 ? handle_bug+0x30/0x50
 ? exc_invalid_op+0x17/0x40
 ? handle_exception+0x101/0x101
 ? exc_overflow+0x3c/0x3c
 ? alloc_tagging_slab_free_hook+0x17f/0x1ec
 ? exc_overflow+0x3c/0x3c
 ? alloc_tagging_slab_free_hook+0x17f/0x1ec
 ? lock_acquire+0xbe/0x1e4
 ? rcu_nocb_unlock_irqrestore+0x3c/0x3c
 kmem_cache_free+0xeb/0x2d0
 ? mem_pool_free+0x6f/0x80
 ? rcu_lock_release+0x18/0x18
 mem_pool_free+0x6f/0x80
 ? rcu_lock_release+0x18/0x18
 free_object_rcu+0x69/0x74
 ? rcu_lock_release+0x18/0x18
 rcu_core+0x2cd/0x66c
 rcu_core_si+0x8/0xc
 handle_softirqs+0xf6/0x358
 ? __lock_text_end+0x2/0x2
 __do_softirq+0xa/0xe
 do_softirq_own_stack+0x50/0x58
 </SOFTIRQ>
 ? sysvec_call_function_single+0x30/0x30
 __irq_exit_rcu+0x54/0x98
 irq_exit_rcu+0x8/0x14
 sysvec_apic_timer_interrupt+0x1f/0x34
 handle_exception+0x101/0x101
EIP: mwait_idle+0x53/0x64
Code: ae 3e 0f ae f0 8d 76 00 89 f0 31 c9 31 d2 0f 01 c8 f7 06 08 00 00 00 75 12 eb 07 0f 00 2d f4 8e 38 d8 31 c0 31 c9 fb 0f 01 c9 <fa> f0 80 66 02 df 5e 5d 31 c0 31 c9 31 d2 c3 cc cc 55 89 e5 53 57
EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000
ESI: c1280040 EDI: c1280040 EBP: c1271f58 ESP: c1271f54
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00200246
 ? sysvec_call_function_single+0x30/0x30
 ? sysvec_call_function_single+0x30/0x30
 ? mwait_idle+0x53/0x64
 ? do_idle+0xb7/0x208
 arch_cpu_idle+0x8/0xc
 default_idle_call+0x66/0x9c
 do_idle+0xb7/0x208
 ? complete+0xc/0x14
 cpu_startup_entry+0x21/0x24
 start_secondary+0x9f/0xac
 startup_32_smp+0x151/0x154
irq event stamp: 20888
hardirqs last  enabled at (20896): [<d7aca9fa>] console_unlock+0xbe/0x144
hardirqs last disabled at (20903): [<d7aca9e1>] console_unlock+0xa5/0x144
softirqs last  enabled at (15774): [<d7a6396e>] handle_softirqs+0x31e/0x358
softirqs last disabled at (15799): [<d837edea>] __do_softirq+0xa/0xe
---[ end trace 0000000000000000 ]---


Full dmesg and kernel .config attached.

Regards,
Erhard