------------[ cut here ]------------
[   43.766280] WARNING: CPU: 0 PID: 484 at mm/util.c:670 __kvmalloc_node_noprof+0xdf/0xf0
[   43.767397] Modules linked in:
[   43.771800] CPU: 0 UID: 0 PID: 484 Comm: unshare_test Not tainted 6.12.16-rc2 #1
[   43.773330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   43.774559] RIP: 0010:__kvmalloc_node_noprof+0xdf/0xf0
[   43.775460] Code: 89 f0 ff 75 08 53 68 00 04 00 00 e8 2b 2a 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
[   43.777079] RSP: 0018:ffffb3ff80623dc8 EFLAGS: 00010246
[   43.778355] RAX: 0000000000000004 RBX: 00000000ffffffff RCX: 0000000400000000
[   43.778930] RDX: 0000000200002000 RSI: 0000000000000000 RDI: ffffffff814585c8
[   43.779176] RBP: ffffb3ff80623de0 R08: 0000000000412cc0 R09: 00000000ffffffff
[   43.779418] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000040000400
[   43.779682] R13: 0000000040000038 R14: 0000000000400cc0 R15: 0000000200002000
[   43.780309] FS:  00007f94ae059740(0000) GS:ffff93a17bc00000(0000) knlGS:0000000000000000
[   43.781211] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.781909] CR2: 00007f94ae0dc230 CR3: 0000000102072000 CR4: 00000000000006f0
[   43.782941] Call Trace:
[   43.784337]  <TASK>
[   43.785348]  ? show_regs+0x65/0x70
[   43.786410]  ? __warn+0xcf/0x1d0
[   43.786747]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   43.787766]  ? report_bug+0x14c/0x1f0
[   43.788277]  ? handle_bug+0x67/0x90
[   43.788628]  ? exc_invalid_op+0x1f/0x50
[   43.789094]  ? asm_exc_invalid_op+0x1f/0x30
[   43.789506]  ? __kvmalloc_node_noprof+0x48/0xf0
[   43.790112]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   43.790619]  ? __kvmalloc_node_noprof+0x48/0xf0
[   43.791494]  alloc_fdtable+0x74/0x110
[   43.792373]  expand_files+0x11a/0x310
[   43.792974]  ? do_prlimit+0x11d/0x160
[   43.793651]  ? __se_sys_prlimit64+0x1ea/0x2a0
[   43.794435]  ksys_dup3+0x71/0xd0
[   43.794936]  __x64_sys_dup2+0x1e/0x80
[   43.795333]  x64_sys_call+0x628/0x2ee0
[   43.796170]  do_syscall_64+0xd0/0x1a0
[   43.796837]  ? exc_page_fault+0x68/0xc0
[   43.797537]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   43.798089] RIP: 0033:0x7f94ae15aca7
[   43.798797] 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
[   43.800172] RSP: 002b:00007ffcd1fb5458 EFLAGS: 00000202 ORIG_RAX: 0000000000000021
[   43.801172] RAX: ffffffffffffffda RBX: 00007ffcd1fb5cb8 RCX: 00007f94ae15aca7
[   43.801551] RDX: 00007ffcd1fb55d8 RSI: 0000000040000038 RDI: 0000000000000002
[   43.801791] RBP: 00007ffcd1fb5670 R08: 0000000000000064 R09: 00000000fffffff6
[   43.802003] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000000
[   43.802216] R13: 00007ffcd1fb5cc8 R14: 00007f94ae298000 R15: 000056185f55ecf8
[   43.802506]  </TASK>
[   43.802740] ---[ end trace 0000000000000000 ]---

core_unshare_test_global_unshare_EMFILE fail

core_unshare_test_global_unshare_EMFILE fail
core_unshare_test fail