Issue

• kernel panic while sync of xfs
• kernel panic with RIP find_get_pages_tag and kernel BUG at mm/filemap.c:1340

[792507.641359] kernel BUG at mm/filemap.c:1340!
[792507.641377] invalid opcode: 0000 [#1] SMP 
[792507.641397] Modules linked in: sg iTCO_wdt iTCO_vendor_support dm_service_time coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd serio_raw pcspkr sb_edac sr_mod edac_core cdrom lpc_ich mfd_core hpilo ses hpwdt enclosure ntb ioatdma dca ipmi_si shpchp ipmi_msghandler acpi_power_meter pcc_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc dm_multipath xfs ata_generic pata_acpi sd_mod crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit bnx2x drm_kms_helper ttm drm ata_piix mpt2sas tg3 libata ptp raid_class mdio hpsa i2c_core libcrc32c scsi_transport_sas pps_core dm_mirror dm_region_hash dm_log dm_mod
[792507.641716] CPU: 5 PID: 3117 Comm: nfsd Not tainted 3.10.0-123.el7.x86_64 #1
[792507.641743] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/02/2014
[792507.641768] task: ffff88082777c440 ti: ffff88081f394000 task.ti: ffff88081f394000
[792507.641797] RIP: 0010:[<ffffffff81141eba>]  [<ffffffff81141eba>] find_get_pages_tag+0x15a/0x1b0
[792507.641835] RSP: 0018:ffff88081f395b80  EFLAGS: 00010246
[792507.641856] RAX: 0000000000000000 RBX: ffff88081f395c10 RCX: ffffea000c09239c
[792507.641883] RDX: 0000000000000000 RSI: ffff88010a6ec140 RDI: 0000000001ffffff
[792507.641910] RBP: ffff88081f395bd8 R08: 000000000027ce80 R09: 0000000000000000
[792507.641936] R10: 0000000000000002 R11: 0000000000000228 R12: ffff88081f395c28
[792507.641963] R13: 0000000000000101 R14: 0000000000000000 R15: 000000000000000e
[792507.641991] FS:  0000000000000000(0000) GS:ffff88042faa0000(0000) knlGS:0000000000000000
[792507.642021] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[792507.642043] CR2: 00007ff73d295240 CR3: 00000000018ce000 CR4: 00000000000407e0
[792507.642070] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[792507.642097] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[792507.642124] Stack:
[792507.642134]  ffffea0007646140 ffff880006049ef0 000000000027cea7 000000000027cec0
[792507.642169]  0000000001ffffff 000000001747ac42 ffff88081f395c18 ffffea0007646140
[792507.642204]  ffff88081f395c98 0000000000000000 0007ffffffffffff ffff88081f395bf0
[792507.642238] Call Trace:
[792507.642255]  [<ffffffff8114ea81>] pagevec_lookup_tag+0x21/0x30
[792507.642278]  [<ffffffff81140f2e>] filemap_fdatawait_range+0xbe/0x1b0
[792507.642304]  [<ffffffff81142c9f>] filemap_write_and_wait_range+0x3f/0x70
[792507.642354]  [<ffffffffa04605b6>] xfs_file_fsync+0x66/0x1f0 [xfs]
[792507.642381]  [<ffffffff811df73d>] vfs_fsync_range+0x1d/0x30
...