------------[ cut here ]------------
[   23.572500] WARNING: CPU: 0 PID: 487 at mm/util.c:670 __kvmalloc_node_noprof+0xdf/0xf0
[   23.573676] Modules linked in:
[   23.574586] CPU: 0 UID: 0 PID: 487 Comm: unshare_test Not tainted 6.12.21-rc2 #1
[   23.575870] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.576880] RIP: 0010:__kvmalloc_node_noprof+0xdf/0xf0
[   23.577676] Code: 89 f0 ff 75 08 53 68 00 04 00 00 e8 7b 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
[   23.578459] RSP: 0018:ffff8e6f80617dc8 EFLAGS: 00010246
[   23.578648] RAX: 0000000000000004 RBX: 00000000ffffffff RCX: 0000000400000000
[   23.579316] RDX: 0000000200002000 RSI: 0000000000000000 RDI: ffffffffb22595b8
[   23.580277] RBP: ffff8e6f80617de0 R08: 0000000000412cc0 R09: 00000000ffffffff
[   23.581270] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000040000400
[   23.582197] R13: 0000000040000038 R14: 0000000000400cc0 R15: 0000000200002000
[   23.583137] FS:  00007f2adffa1740(0000) GS:ffff88e3fbc00000(0000) knlGS:0000000000000000
[   23.583893] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.584583] CR2: 00007f2ae01506a0 CR3: 0000000102306000 CR4: 00000000000006f0
[   23.585502] Call Trace:
[   23.586216]  <TASK>
[   23.586983]  ? show_regs+0x65/0x70
[   23.587485]  ? __warn+0xcf/0x1d0
[   23.587821]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   23.588284]  ? report_bug+0x14c/0x1f0
[   23.588403]  ? handle_bug+0x67/0x90
[   23.588495]  ? exc_invalid_op+0x1f/0x50
[   23.588591]  ? asm_exc_invalid_op+0x1f/0x30
[   23.588697]  ? __kvmalloc_node_noprof+0x48/0xf0
[   23.588820]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   23.588928]  ? __kvmalloc_node_noprof+0x48/0xf0
[   23.589645]  alloc_fdtable+0x74/0x110
[   23.590298]  expand_files+0x11a/0x310
[   23.590766]  ? do_prlimit+0x11d/0x160
[   23.591281]  ? __se_sys_prlimit64+0x1ea/0x2a0
[   23.591908]  ksys_dup3+0x71/0xd0
[   23.592349]  __x64_sys_dup2+0x1e/0x80
[   23.592924]  x64_sys_call+0x628/0x2ee0
[   23.593515]  do_syscall_64+0xd0/0x1a0
[   23.594074]  ? exc_page_fault+0x68/0xc0
[   23.594544]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   23.595267] RIP: 0033:0x7f2ae00a3867
[   23.596117] Code: 73 01 c3 48 8b 0d 91 75 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 61 75 0e 00 f7 d8 64 89 02 b8
[   23.597515] RSP: 002b:00007ffe2c633638 EFLAGS: 00000202 ORIG_RAX: 0000000000000021
[   23.598082] RAX: ffffffffffffffda RBX: 00007ffe2c633e98 RCX: 00007f2ae00a3867
[   23.598939] RDX: 00007ffe2c6337b8 RSI: 0000000040000038 RDI: 0000000000000002
[   23.599128] RBP: 00007ffe2c633850 R08: 0000000000000000 R09: 0000000000000000
[   23.599961] R10: 0000000000000004 R11: 0000000000000202 R12: 0000000000000000
[   23.600752] R13: 00007ffe2c633ea8 R14: 00007f2ae01e2000 R15: 000055d295c7dcf8
[   23.601283]  </TASK>
[   23.601410] ---[ end trace 0000000000000000 ]---

core_unshare_test_global_unshare_EMFILE fail

core_unshare_test_global_unshare_EMFILE fail
core_unshare_test fail