random reboot AC87U Kernel error

[ProfessorStrawberry]

Hi guys,

my AC87 U with 380.68 Merlin is having random outages/ reboots.

this is the reboot error shown in log

Aug 1 02:00:12 kernel: <1>Unable to handle kernel NULL pointer derefere�U�at virtual address 00000001
Aug 1 02:00:12 kernel: <1>p=00000000
Aug 1 02:00:12 kernel: <0>Internal error: Oopysfs file: /sys/class/net/eth0/speed
Aug 1 02:00:12 kernel: <4>module: sr_mod bf7fd00 cdc_wdm bf7dc000 7252
Aug 1 02:00:12 kernel: <4>module: cdc_ncm bf7d4000 8750
Aug 1 02:00:12 kernel: <4>module: rndis_host bf7cd000 4936
Aug 1 02:00:12 kernel: <4>module: cdc_ether bf7c7000 3187
Aug 1 02:00:12 kernel: <4>module: asix bf7 bf7b6000 11161
Aug 1 02:00:12 kernel: <4>module: miixt2 bf699000 52776
Aug 1 02:00:12 kernel: <4>module: ule: crc16 bf63f000 1007
Aug 1 02:00:12 kernel: <4>mf6000 34290
Aug 1 02:00:12 kernel: <4>module: sg bf5 bf5df000 21983
Aug 1 02:00:12 kernel: <4>module: scsdule: scsi_mod bf5b4000 10873p bf4a8000 3202
Aug 1 02:00:12 kernel: <4>module: nf_conntrack_rtsp bf4a2000 4067
Aug 1 02:00:12 kernel: 1144
Aug 1 02:00:12 kernel: <4>module: nf_conntrack_4>module: xt_length bf489000 : zlib_deflate bf448000 19489: nf_nat_proto_gre bf436000 887
Aug 1 02:00:12 kernel: <4>module: nf_conntrack_protle: emf bf021000 15225
Aug 1 02:00:12 kernel: <4>modext2 ext4 jbd2 crc16 ext3 jbd mbt_rtsp nf_conntrack_rtsp nf_nat_418cbc c003b9d0 c03c2000 000000b3780: cfa53800 bf013ce0 bf013c5400001 00000000 00000002 0d01a8c0f851
Aug 1 02:00:12 kernel: <0>3880: 00000000 00000000 00000000 101a101a 00000011 00000000000
Aug 1 02:00:12 kernel: <0>38c0: 00000000 00000000 00000000 00000000 00000000 0000: 00000000 00000000 00000000 00 ^C0 00000000 00000000 00000000 000226e74 cc13fd20 cc13fd8c
Aug 1 02:00:12 kernel: <0>3b00: 0000000a c041fabc cc13fd20 000a 0809022a 1c209001 a4f9fc1d
Aug 1 02:00:12 kernel: <0>3b80: 41b19f94 89000126 07b300c50000 11a43000
Aug 1 02:00:12 kernel: <0>3ba0: c0418cbc
Aug 1 02:00:12 kernel: <0>3c00: 00000000 cf064380 cfa4ec4000 bf573f4c c0423f90 cf0643882017941 cfbc6444 c0283f7c 000000000000 00000000 cfa43000 0000000: c78b511e c03c3d3c 00000000 00d60: cfa43000 c028451c 00000000 001 cfbb97e0
Aug 1 02:00:12 kernel: c03c2000 cfbb97e0 0000e450 cdd211e c78b5124 00000000 effe6678 064 c03c3dfc cdd28000 00000000 00 c78b511e c03c2000
Aug 1 02:00:12 kernel: <0>3e40: 0000c78b5124 00000000 00000000 c03c2
Aug 1 02:00:12 kernel: ____________________________________________________________________________