[  458.420234] ------------[ cut here ]------------
[  458.420875] kernel BUG at lib/radix-tree.c:769!
[  458.421476] Internal error: Oops - BUG: 0 [#1] SMP ARM
[  458.422081] Modules linked in: cmac bnep hci_uart btbcm bluetooth brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 snd_pcm snd_timer snd bcm2835_gpiomem uio_pdrv_genirq uio fixed ip_tables x_tables ipv6
[  458.424175] CPU: 2 PID: 873 Comm: php-fpm7.0 Not tainted 4.9.48-v7+ #1034
[  458.424888] Hardware name: BCM2835
[  458.425590] task: b9f61d80 task.stack: b91a6000
[  458.426299] PC is at radix_tree_tag_set+0xbc/0xc0
[  458.427020] LR is at __set_page_dirty+0x70/0xe4
[  458.427725] pc : [<8045a7ac>]    lr : [<802a869c>]    psr: 20000093
               sp : b91a7c6c  ip : b91a7c90  fp : b91a7cb4
[  458.429147] r10: a4134080  r9 : 00001000  r8 : 00000000
[  458.429853] r7 : a0000013  r6 : 00000000  r5 : bd607bfc  r4 : a40a94e0
[  458.430562] r3 : 00000000  r2 : 00000000  r1 : 000003ae  r0 : a40a94e0
[  458.431258] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[  458.431968] Control: 10c5383d  Table: 3925c06a  DAC: 00000055
[  458.432685] Process php-fpm7.0 (pid: 873, stack limit = 0xb91a6210)
[  458.433420] Stack: (0xb91a7c6c to 0xb91a8000)
[  458.434152] 7c60:                            a40a94e0 bd607bfc a40a94e8 a0000013 00000000
[  458.435634] 7c80: b91a7cb4 b91a7c90 802a869c 8045a6fc 00000000 bd607bfc 00000000 a40a94dc
[  458.437182] 7ca0: 00001000 00001000 b91a7cd4 b91a7cb8 802a8970 802a8638 00000001 00000000
[  458.438768] 7cc0: a4134080 00000000 b91a7d0c b91a7cd8 802a9c18 802a8828 00000000 bd607bfc
[  458.440429] 7ce0: fffff000 00000000 00001000 00001000 a40a93f0 003ae000 00000000 a40a93f0
[  458.442186] 7d00: b91a7d2c b91a7d10 802a9cc8 802a9b80 bd607bfc 00001000 003ae000 00000000
[  458.444050] 7d20: b91a7d74 b91a7d30 802a9d64 802a9c84 00001000 00001000 bd607bfc 00000000
[  458.445985] 7d40: 00001668 00000000 8030aa64 00001000 00001000 00001000 a40a94dc 003ae000
[  458.448027] 7d60: 00000000 a40a93f0 b91a7dc4 b91a7d78 8030b91c 802a9d24 00001000 00001000
[  458.450116] 7d80: bd607bfc 00000000 003af000 00000000 bc605d80 b337da40 8061309c 00001000
[  458.452251] 7da0: b91a7ef0 a40a94dc 00001000 00000000 00001000 8080eee4 b91a7e24 b91a7dc8
[  458.454420] 7dc0: 8020c9f0 8030b7f0 00001000 00001000 bd607bfc 00000000 00000000 b91a6008
[  458.456523] 7de0: 00000000 bc605d80 003ae000 00000000 bd607bfc 00000000 59cbe0f0 00000000
[  458.458567] 7e00: b91a7f08 a40a94dc a40a9460 00000000 bc605d80 b91a7ef0 b91a7e6c b91a7e28
[  458.460613] 7e20: 8020da44 8020c8cc b91a7e28 b91a7e28 8018cf18 b91a7ef0 00000000 b91a7f08
[  458.462649] 7e40: b90f36c0 b91a7f08 00000000 b91a7ef0 a40a9460 00002000 00002000 a40a93f0
[  458.464686] 7e60: b91a7edc b91a7e70 802fedd8 8020d8b4 00000000 0000084c 00000000 00000000
[  458.466723] 7e80: b91a7edc 802fe72c 8060aca8 806d811c 00000000 00000000 003ae000 00000000
[  458.468759] 7ea0: b91a7f4c b91a7eb0 802fe72c 80270134 00000002 bc605d80 b91a7f80 003ae000
[  458.470799] 7ec0: 00000000 00002000 b91a6000 00000000 b91a7f4c b91a7ee0 8026faac 802fecd8
[  458.472834] 7ee0: 00002000 80270850 59adc000 00002000 00000001 00000000 00002000 b91a7ee8
[  458.474869] 7f00: 00000001 00000001 bc605d80 00000000 003ae000 00000000 00000000 b91a7e94
[  458.476905] 7f20: 00000000 00000000 b91a7f4c 00002000 bc605d80 59adc000 b91a7f80 80108244
[  458.478941] 7f40: b91a7f7c b91a7f50 80270918 8026f9e8 00000008 802909dc bc605d80 bc605d80
[  458.480976] 7f60: 00002000 59adc000 80108244 b91a6000 b91a7fa4 b91a7f80 80271a20 80270870
[  458.483011] 7f80: 003ae000 00000000 59ae3000 00002000 59adc000 00000004 00000000 b91a7fa8
[  458.485046] 7fa0: 801080c0 802719d8 59ae3000 00002000 00000007 59adc000 00002000 59a5bf00
[  458.487080] 7fc0: 59ae3000 00002000 59adc000 00000004 00002000 00002000 59ae0010 00318f48
[  458.489115] 7fe0: 00000000 7ebbfd3c 0017c4ec 769401fc 60000010 00000007 00000000 00000000
[  458.491163] [<8045a7ac>] (radix_tree_tag_set) from [<802a8970>] (mark_buffer_dirty+0x154/0x16c)
[  458.493210] [<802a8970>] (mark_buffer_dirty) from [<802a9c18>] (__block_commit_write+0xa4/0xd0)
[  458.495251] [<802a9c18>] (__block_commit_write) from [<802a9cc8>] (block_write_end+0x50/0xa0)
[  458.497288] [<802a9cc8>] (block_write_end) from [<802a9d64>] (generic_write_end+0x4c/0x130)
[  458.499324] [<802a9d64>] (generic_write_end) from [<8030b91c>] (ext4_da_write_end+0x138/0x304)
[  458.501364] [<8030b91c>] (ext4_da_write_end) from [<8020c9f0>] (generic_perform_write+0x130/0x1c8)
[  458.503405] [<8020c9f0>] (generic_perform_write) from [<8020da44>] (__generic_file_write_iter+0x19c/0x1f8)
[  458.505450] [<8020da44>] (__generic_file_write_iter) from [<802fedd8>] (ext4_file_write_iter+0x10c/0x404)
[  458.507494] [<802fedd8>] (ext4_file_write_iter) from [<8026faac>] (__vfs_write+0xd0/0x128)
[  458.509526] [<8026faac>] (__vfs_write) from [<80270918>] (vfs_write+0xb4/0x1bc)
[  458.510570] [<80270918>] (vfs_write) from [<80271a20>] (SyS_write+0x54/0xb0)
[  458.511605] [<80271a20>] (SyS_write) from [<801080c0>] (ret_fast_syscall+0x0/0x1c)
[  458.513568] Code: 01822001 05802000 e1a00004 e89da9f0 (e7f001f2)
[  458.514564] ---[ end trace ffd4d08ce7f2e60d ]---