------------[ cut here ]------------
[   43.909828] WARNING: CPU: 0 PID: 486 at mm/util.c:657 __kvmalloc_node_noprof+0xdf/0xf0
[   43.911812] Modules linked in:
[   43.913022] CPU: 0 UID: 0 PID: 486 Comm: unshare_test Not tainted 6.13.7-rc1 #1
[   43.913515] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   43.914380] RIP: 0010:__kvmalloc_node_noprof+0xdf/0xf0
[   43.915252] Code: 89 f0 ff 75 08 53 68 00 04 00 00 e8 0b 22 04 00 48 83 c4 18 5b 41 5e 41 5f 5d c3 cc cc cc cc cc 41 f7 c6 00 20 00 00 75 81 90 <0f> 0b 90 31 c0 eb e3 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[   43.916111] RSP: 0018:ffffa383c05ebdb8 EFLAGS: 00010246
[   43.916608] RAX: 0000000000000004 RBX: 00000000ffffffff RCX: 0000000400000000
[   43.917342] RDX: 0000000200001e00 RSI: 0000000000000000 RDI: ffffffffa9875078
[   43.918074] RBP: ffffa383c05ebdd0 R08: 0000000000412cc0 R09: 00000000ffffffff
[   43.918805] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000400003c0
[   43.919350] R13: 00000000400003c0 R14: 0000000000400cc0 R15: 0000000200001e00
[   43.920146] FS:  00007f166227c740(0000) GS:ffff8dca3bc00000(0000) knlGS:0000000000000000
[   43.920597] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.921165] CR2: 00007f166241ffa4 CR3: 0000000101c60000 CR4: 00000000000006f0
[   43.921871] Call Trace:
[   43.923445]  <TASK>
[   43.924127]  ? show_regs+0x65/0x70
[   43.924535]  ? __warn+0xcf/0x1d0
[   43.924817]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   43.925297]  ? report_bug+0x14c/0x1f0
[   43.925453]  ? handle_bug+0x67/0x90
[   43.925582]  ? exc_invalid_op+0x1f/0x50
[   43.925764]  ? asm_exc_invalid_op+0x1f/0x30
[   43.926266]  ? __kvmalloc_node_noprof+0x48/0xf0
[   43.926810]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   43.927427]  ? __kvmalloc_node_noprof+0x48/0xf0
[   43.927870]  alloc_fdtable+0x7b/0x120
[   43.928681]  expand_files+0x118/0x310
[   43.928913]  ? do_prlimit+0x11d/0x160
[   43.929204]  ? __se_sys_prlimit64+0x1ea/0x2a0
[   43.929409]  ksys_dup3+0x71/0xd0
[   43.929741]  __x64_sys_dup2+0x1e/0x80
[   43.930300]  x64_sys_call+0x8cf/0x2f50
[   43.930627]  do_syscall_64+0xd0/0x1a0
[   43.931093]  ? exc_page_fault+0x68/0xc0
[   43.931424]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   43.931782] RIP: 0033:0x7f166237dca7
[   43.932817] Code: 73 01 c3 48 8b 0d 79 81 0e 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 21 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 49 81 0e 00 f7 d8 64 89 02 b8
[   43.934172] RSP: 002b:00007ffc61b20988 EFLAGS: 00000206 ORIG_RAX: 0000000000000021
[   43.934801] RAX: ffffffffffffffda RBX: 00007ffc61b211e8 RCX: 00007f166237dca7
[   43.935441] RDX: 00007ffc61b20b08 RSI: 0000000040000038 RDI: 0000000000000002
[   43.935709] RBP: 00007ffc61b20ba0 R08: 0000000000000064 R09: 00000000fffffff6
[   43.935941] R10: 0000000000000004 R11: 0000000000000206 R12: 0000000000000000
[   43.936620] R13: 00007ffc61b211f8 R14: 00007f16624bb000 R15: 000055b2b4efccf8
[   43.937455]  </TASK>
[   43.937826] ---[ end trace 0000000000000000 ]---

core_unshare_test_global_unshare_EMFILE fail

core_unshare_test_global_unshare_EMFILE fail
core_unshare_test fail