kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing) [RPi CM4]

[Max Schulze]

Hello,

I get these messages when booting 5.19.0 on RaspberryPi CM4.

Full boot log is at https://pastebin.ubuntu.com/p/mVhgBwxqPj/

Anyone seen this? What can I do ?

Thanks,

Max


[0.087630] kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
[0.087756] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.19.0-v8-0815+ #5
[0.087836] Hardware name: Raspberry Pi Compute Module 4 Rev 1.0 (DT)
[0.087901] Call trace:
[0.087941]  dump_backtrace.part.0+0x1dc/0x1ec
[0.088029]  show_stack+0x24/0x80
[0.088089]  dump_stack_lvl+0x8c/0xb8
[0.088161]  dump_stack+0x1c/0x38
[0.088224]  create_object.isra.0+0x490/0x4b0
[0.088298]  kmemleak_alloc+0x3c/0x50
[0.088365]  kmem_cache_alloc+0x2f8/0x450
[0.088435]  __proc_create+0x18c/0x400
[0.088509]  proc_create_reg+0x54/0xd0
[0.088569]  proc_create_seq_private+0x94/0x120
[0.088634]  init_mm_internals+0x1d8/0x248
[0.088704]  kernel_init_freeable+0x188/0x388
[0.088776]  kernel_init+0x30/0x150
[0.088837]  ret_from_fork+0x10/0x20
[0.088903] kmemleak: Kernel memory leak detector disabled
[0.088958] kmemleak: Object 0xffffff806e24d000 (size 2097152):
[0.089021] kmemleak:   comm "swapper", pid 0, jiffies 4294892296
[0.089085] kmemleak:   min_count = -1
[0.089131] kmemleak:   count = 0
[0.089174] kmemleak:   flags = 0x5
[0.089219] kmemleak:   checksum = 0
[0.089264] kmemleak:   backtrace:
[0.089306]  kmemleak_alloc_phys+0x94/0xb0
[0.089379]  memblock_alloc_range_nid+0x1c0/0x20c
[0.089460]  memblock_alloc_internal+0x88/0x100
[0.089532]  memblock_alloc_try_nid+0x148/0x1ac
[0.089604]  kfence_alloc_pool+0x44/0x6c
[0.089674]  mm_init+0x28/0x98
[0.089733]  start_kernel+0x178/0x3e8
[0.089797]  __primary_switched+0xc4/0xcc
[0.090185] cblist_init_generic: Setting adjustable number of callback queues.


early_memtest reports no problems, 


[0.000000] Zone ranges:
[0.000000]   DMA  [mem 0x0000000000000000-0x000000003fffffff]
[0.000000]   DMA32[mem 0x0000000040000000-0x000000007fffffff]
[0.000000]   Normal   empty
[0.000000] Movable zone start for each node
[0.000000] Early memory node ranges
[0.000000]   node   0: [mem 0x0000000000000000-0x0000000037ffffff]
[0.000000]   node   0: [mem 0x0000000040000000-0x000000007fffffff]
[0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000007fffffff]


The Address differs a bit across reboots, but callstack looks always the same, and "Object is always 0xffffff806e24d000 (size 2097152)" 


Aug 15 03:42:44 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 03:50:37 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 03:50:37 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 06:58:14 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 07:04:01 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 07:04:01 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 07:27:40 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 07:36:10 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 07:41:57 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 07:47:43 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 07:53:29 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 07:59:18 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:05:06 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:13:00 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:21:47 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:27:36 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:33:23 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 08:39:13 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:45:03 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 08:50:51 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 08:56:40 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 09:02:27 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 09:08:16 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 09:23:45 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 09:32:34 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 09:38:23 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 09:44:09 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 09:49:55 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 09:55:40 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 10:01:27 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 10:07:19 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 10:15:13 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 10:24:00 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 10:28:56 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 10:34:44 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 10:42:45 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 10:51:32 kernel:kmemleak: Cannot insert 0xffffff806e24ff40 into the object search tree (overlaps existing)
Aug 15 11:03:53 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)
Aug 15 11:14:55 kernel:kmemleak: Cannot insert 0xffffff806e24f000 into the object search tree (overlaps existing)