[56463.411413] Data bus error, epc == 80152ae0, ra == 80152ae0
[56463.417173] Oops[#1]:
[56463.419522] CPU: 0 PID: 29665 Comm: stress.bin Not tainted 4.14.176 #0
[56463.426256] task: 8651c000 task.stack: 86378000
[56463.430929] $ 0   : 00000000 00000001 86531000 86533000
[56463.436332] $ 4   : 81102070 00000001 0134974d 0134974e
[56463.441735] $ 8   : 00000154 80071ca4 80147e64 ffffffc0
[56463.447138] $12   : 7fc526f0 0001cca8 0001dcfc 001d4b47
[56463.452541] $16   : 00004000 ffffff9c 004107e0 80570000
[56463.457944] $20   : 01400000 00004000 86379ef4 fffffffe
[56463.463347] $24   : 7fc52764 77f9a5f4
[56463.468750] $28   : 86378000 86379e80 ffffff69 80152ae0
[56463.474152] Hi    : 00000000
[56463.477118] Lo    : 00000001
[56463.480110] epc : 80152ae0 getname_flags (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/namei.c:139) 
[56463.485323] ra : 80152ae0 getname_flags (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/namei.c:139) 
[56463.490532] Status: 1100dc03	KERNEL EXL IE
[56463.494852] Cause : 4080c01c (ExcCode 07)
[56463.498991] PrId  : 00019750 (MIPS 74Kc)
[56463.503039] Modules linked in: ath9k ath9k_common batman_adv ath9k_hw ath10k_pci ath10k_core ath mac80211 cfg80211 xt_FLOWOFFLOAD xt_CT nf_flow_table_hw nf_flow_table compat gpio_button_hotplug
[56463.520838] Process stress.bin (pid: 29665, threadinfo=86378000, task=8651c000, tls=77fc9efc)
[56463.529632] Stack : 00000001 00000000 00000000 86379ea8 00004000 ffffff9c 86379ef8 00410840
[56463.538270]         00600000 00700000 ffffffea 80152f58 77f35794 77f39654 77f9cd88 800a37cc
[56463.546907]         7fc5276c 004107e0 000000ff 80147ee4 00000000 80162c08 7fc52764 870d0c80
[56463.555544]         86379ef4 870d0c80 00000002 00000002 7fc52764 00000000 77f9cd88 77fc8000
[56463.564173]         7fc5276c 00000001 7fc52764 00400610 77f9cd88 77fc8000 77fc2db0 00000000
[56463.572801]         ...
[56463.575330] Call Trace:
[56463.577853] getname_flags (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/namei.c:139) 
[56463.582713] user_path_at_empty (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/namei.c:2633) 
[56463.587932] SyS_readlink (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/stat.c:394 /gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/stat.c:382 /gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/stat.c:421 /gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/fs/stat.c:418) 
[56463.592712] syscall_common (/gluon/gluon/openwrt/build_dir/target-mips_24kc_musl/linux-ar71xx_generic/linux-4.14.176/arch/mips/kernel/scall32-o32.S:104) 
[56463.597575] Code: afb00010 0c04e49b 00c0b025 <10400046> 24510010 00408025 ac510000 24070ff0 02202025
All code
========
   0:	afb00010 	sw	s0,16(sp)
   4:	0c04e49b 	jal	0x13926c
   8:	00c0b025 	move	s6,a2
   c:*	10400046 	beqz	v0,0x128		<-- trapping instruction
  10:	24510010 	addiu	s1,v0,16
  14:	00408025 	move	s0,v0
  18:	ac510000 	sw	s1,0(v0)
  1c:	24070ff0 	li	a3,4080
  20:	02202025 	move	a0,s1
	...

Code starting with the faulting instruction
===========================================
   0:	10400046 	beqz	v0,0x11c
   4:	24510010 	addiu	s1,v0,16
   8:	00408025 	move	s0,v0
   c:	ac510000 	sw	s1,0(v0)
  10:	24070ff0 	li	a3,4080
  14:	02202025 	move	a0,s1
	...
[56463.607657]
[56463.609758] ath10k_pci 0000:00:00.0: SWBA overrun on vdev 0, skipped old beacon
[56463.618822] ---[ end trace f281d86b3ab09f3a ]---
[56463.626671] Kernel panic - not syncing: Fatal exception
[56463.634356] Rebooting in 3 seconds..