Comment 30 for bug 1719045

You may also not be surprised to see this in a run I did with upstream 4.14-rc2:

[ 27.274499] general protection fault: 0000 [#1] SMP
[ 27.274499] Modules linked in: mlx4_en mlx4_core devlink sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel hv_utils pcbc hyperv_keyboard ptp snd_pcm aesni_intel hyperv_fb pps_core snd_timer sg aes_x86_64 pci_hyperv serio_raw hv_balloon crypto_simd glue_helper cryptd snd soundcore pcspkr evdev joydev button intel_rapl_perf ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 fscrypto sd_mod hid_generic sr_mod cdrom ata_generic ata_piix libata hv_storvsc hid_hyperv scsi_transport_fc hv_netvsc hid crc32c_intel psmouse scsi_mod i2c_piix4 hv_vmbus floppy
[ 27.274499] CPU: 8 PID: 1030 Comm: ntpd Not tainted 4.14.0-rc2 #1
[ 27.274499] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 01/06/2017
[ 27.274499] task: ffff9bf72f3aa0c0 task.stack: ffffa99322e78000
[ 27.274499] RIP: 0010:0xffffa9930c489000
[ 27.274499] RSP: 0000:ffffa99322e7bc60 EFLAGS: 00000046
[ 27.274499] RAX: 0000000000000000 RBX: ffffc9817f803000 RCX: 0000000100060014
[ 27.274499] RDX: 00002dadff803000 RSI: 0000000100060014 RDI: 0000000000000002
[ 27.274499] RBP: ffffa99322e7bca8 R08: 0000000000000000 R09: 00007f60f0f47000
[ 27.274499] R10: ffffc9817f803020 R11: 0000000000000000 R12: 0000000100060014
[ 27.274499] R13: ffffa99322e7bcb8 R14: 0000000000000001 R15: ffff9be5ae658540
[ 27.274499] FS: 00007f60f2900700(0000) GS:ffff9be5b9000000(0000) knlGS:0000000000000000
[ 27.274499] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 27.274499] CR2: 00007f60f0f46e28 CR3: 000000121c34c000 CR4: 00000000001406e0
[ 27.274499] Call Trace:
[ 27.274499] ? hyperv_flush_tlb_others_ex+0x1b0/0x440
[ 27.274499] flush_tlb_mm_range+0xad/0x110
[ 27.274499] ptep_clear_flush+0x39/0x40
[ 27.274499] wp_page_copy+0x27f/0x630
[ 27.274499] do_wp_page+0x151/0x4f0
[ 27.274499] __handle_mm_fault+0x80c/0x1140
[ 27.274499] ? do_mmap+0x445/0x510
[ 27.274499] handle_mm_fault+0xce/0x1c0
[ 27.274499] __do_page_fault+0x23e/0x4e0
[ 27.274499] do_page_fault+0x2e/0xd0
[ 27.274499] page_fault+0x22/0x30
[ 27.274499] RIP: 0033:0x7f60f26f4f1b
[ 27.274499] RSP: 002b:00007f60f28fed50 EFLAGS: 00010202
[ 27.274499] RAX: 00007f60f0f46e20 RBX: 00007f60ec000ac0 RCX: 0000000000000028
[ 27.274499] RDX: 00007f60f0f46f60 RSI: 00007f60ec000b00 RDI: 000000006fffffff
[ 27.274499] RBP: 00007f60f28fee90 R08: 00007f60f0d42000 R09: 0000000070000021
[ 27.274499] R10: 0000000000000031 R11: 000000006ffffdff R12: 00007f60f28fef78
[ 27.274499] R13: 000000037ffff1a0 R14: 0000000000000801 R15: 00007f60f28fef30
[ 27.274499] Code: <0f> 01 c1 c3 8b c8 b8 11 00 00 00 0f 01 c1 c3 48 8b c1 48 c7 c1 11
[ 27.274499] RIP: 0xffffa9930c489000 RSP: ffffa99322e7bc60
[ 27.274499] ---[ end trace f506aa4e20966c27 ]---