------------[ cut here ]------------
[   40.668040] WARNING: CPU: 0 PID: 485 at mm/util.c:657 __kvmalloc_node_noprof+0xdf/0xf0
[   40.669601] Modules linked in:
[   40.670384] CPU: 0 UID: 0 PID: 485 Comm: unshare_test Not tainted 6.13.6-rc2 #1
[   40.670985] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   40.671965] RIP: 0010:__kvmalloc_node_noprof+0xdf/0xf0
[   40.672676] Code: 89 f0 ff 75 08 53 68 00 04 00 00 e8 bb 21 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
[   40.673703] RSP: 0018:ffffaefcc0603db8 EFLAGS: 00010246
[   40.674180] RAX: 0000000000000004 RBX: 00000000ffffffff RCX: 0000000400000000
[   40.674831] RDX: 0000000200001e00 RSI: 0000000000000000 RDI: ffffffffbb075038
[   40.675040] RBP: ffffaefcc0603dd0 R08: 0000000000412cc0 R09: 00000000ffffffff
[   40.675234] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000400003c0
[   40.675843] R13: 00000000400003c0 R14: 0000000000400cc0 R15: 0000000200001e00
[   40.676544] FS:  00007f4149f18740(0000) GS:ffff8f887bc00000(0000) knlGS:0000000000000000
[   40.676966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.677228] CR2: 00007f4149f9b230 CR3: 0000000103c20000 CR4: 00000000000006f0
[   40.678196] Call Trace:
[   40.679517]  <TASK>
[   40.679920]  ? show_regs+0x65/0x70
[   40.680413]  ? __warn+0xcf/0x1d0
[   40.680702]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   40.680917]  ? report_bug+0x14c/0x1f0
[   40.681040]  ? handle_bug+0x67/0x90
[   40.681157]  ? exc_invalid_op+0x1f/0x50
[   40.681270]  ? asm_exc_invalid_op+0x1f/0x30
[   40.681747]  ? __kvmalloc_node_noprof+0x48/0xf0
[   40.682178]  ? __kvmalloc_node_noprof+0xdf/0xf0
[   40.682679]  ? __kvmalloc_node_noprof+0x48/0xf0
[   40.683007]  alloc_fdtable+0x7b/0x120
[   40.683614]  expand_files+0x118/0x310
[   40.683944]  ? do_prlimit+0x11d/0x160
[   40.684185]  ? __se_sys_prlimit64+0x1ea/0x2a0
[   40.684566]  ksys_dup3+0x71/0xd0
[   40.684886]  __x64_sys_dup2+0x1e/0x80
[   40.685252]  x64_sys_call+0x8cf/0x2f50
[   40.685721]  do_syscall_64+0xd0/0x1a0
[   40.685920]  ? irqentry_exit+0x16/0x60
[   40.686085]  ? sysvec_apic_timer_interrupt+0x4a/0x90
[   40.686276]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   40.686922] RIP: 0033:0x7f414a019ca7
[   40.687627] 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
[   40.689178] RSP: 002b:00007ffc32222d18 EFLAGS: 00000206 ORIG_RAX: 0000000000000021
[   40.689402] RAX: ffffffffffffffda RBX: 00007ffc32223578 RCX: 00007f414a019ca7
[   40.689577] RDX: 00007ffc32222e98 RSI: 0000000040000038 RDI: 0000000000000002
[   40.689738] RBP: 00007ffc32222f30 R08: 0000000000000064 R09: 00000000fffffff6
[   40.689906] R10: 0000000000000004 R11: 0000000000000206 R12: 0000000000000000
[   40.690063] R13: 00007ffc32223588 R14: 00007f414a157000 R15: 0000558f5013dcf8
[   40.690296]  </TASK>
[   40.690645] ---[ end trace 0000000000000000 ]---

core_unshare_test_global_unshare_EMFILE fail

core_unshare_test_global_unshare_EMFILE fail
core_unshare_test fail