[AEP]nd_region region12: allocation underrun: 0x0 of 0x1980000000 bytes

[quanxian]

Description
This was seen by a customer when trying to create a namespace:

[1124286.189585] nd_region region12: allocation underrun: 0x0 of 0x1980000000 bytes
[1124286.189604] -----------[ cut here ]-----------
[1124286.189611] WARNING: CPU: 59 PID: 145367 at drivers/nvdimm/namespace_devs.c:913 size_store+0x85e/0x870
[1124286.189612] Modules linked in: hfsplus hfs isofs binfmt_misc vtsspp(OE) sep4_1(OE) sepint4_1(OE) socperf2_0(OE) pax(OE) ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables sunrpc vfat fat dax_pmem nd_pmem device_dax nd_btt intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate intel_uncore intel_rapl_perf ipmi_ssif iTCO_wdt iTCO_vendor_support ioatdma mei_me joydev i2c_i801 lpc_ich shpchp
[1124286.189645] mei wmi dca ipmi_msghandler nfit acpi_power_meter acpi_pad xfs libcrc32c ast i2c_algo_bit drm_kms_helper ttm crc32c_intel nvme i40e drm nvme_core ptp pps_core [last unloaded: vtsspp]
[1124286.189656] CPU: 59 PID: 145367 Comm: ndctl Tainted: G OE 4.14.18-300.fc27.x86_64 #1
[1124286.189657] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.01.00.0694.120620170818 12/06/2017
[1124286.189658] task: ffff98a64a088000 task.stack: ffffa9840e520000
[1124286.189660] RIP: 0010:size_store+0x85e/0x870
[1124286.189661] RSP: 0018:ffffa9840e523d38 EFLAGS: 00010282
[1124286.189662] RAX: 0000000000000042 RBX: ffff9991b119a008 RCX: 0000000000000000
[1124286.189663] RDX: 0000000000000000 RSI: ffff98a67efd6a38 RDI: ffff98a67efd6a38
[1124286.189663] RBP: ffff9991b15a3fc0 R08: 0000000000000760 R09: 0000000000000004
[1124286.189664] R10: fffff171b9971c40 R11: 0000000000000001 R12: 0000000000000000
[1124286.189665] R13: ffff9991b515f000 R14: ffff9991b515f3d0 R15: ffffa9840e523d9e
[1124286.189666] FS: 00007f402255c780(0000) GS:ffff98a67efc0000(0000) knlGS:0000000000000000
[1124286.189667] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1124286.189667] CR2: 0000563419868608 CR3: 0000002ef88ac001 CR4: 00000000007606e0
[1124286.189668] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[1124286.189669] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[1124286.189669] PKRU: 55555554
[1124286.189670] Call Trace:
[1124286.189677] ? __kmalloc+0x199/0x210
[1124286.189680] kernfs_fop_write+0x10b/0x190
[1124286.189683] __vfs_write+0x36/0x180
[1124286.189687] ? selinux_file_permission+0x116/0x130
[1124286.189691] ? security_file_permission+0x3c/0xb0
[1124286.189692] vfs_write+0xad/0x1a0
[1124286.189694] SyS_write+0x52/0xc0
[1124286.189698] do_syscall_64+0x75/0x180
[1124286.189701] entry_SYSCALL_64_after_hwframe+0x21/0x86
[1124286.189703] RIP: 0033:0x7f40218517a4
[1124286.189703] RSP: 002b:00007ffcc1c0e948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[1124286.189704] RAX: ffffffffffffffda RBX: 000000000000000e RCX: 00007f40218517a4
[1124286.189705] RDX: 000000000000000e RSI: 00007ffcc1c0e990 RDI: 0000000000000003
[1124286.189706] RBP: 00007ffcc1c0e990 R08: 000000000000000a R09: 0000000000000000
[1124286.189706] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
[1124286.189707] R13: 0000000000000000 R14: 00007f402255c6b0 R15: 0000000000000002
[1124286.189708] Code: 48 85 ed 75 04 49 8b 6d 10 4c 89 ef e8 2c a7 fc ff 4c 8b 44 24 38 4c 89 e1 48 89 ea 48 89 c6 48 c7 c7 a8 7b 0f 95 e8 5d 74 b5 ff <0f> ff e9 bb fd ff ff e8 f6 9c af ff 66 0f 1f 44 00 00 0f 1f 44
[1124286.189729] --[ end trace 39a78a4960fc8601 ]--

Commits:
12e3129e29b4 1e687220ef2d

Target Kernel: 4.19
Target Release: 19.04