arthur panic

Posting here for reference:

00000005af554] nf_hook_slow+0x40/0x168
 [00000000005c3644] ip_finish_output+0x234/0x244
 [00000000005c3d44] ip_queue_xmit+0x438/0x514
 [00000000005d5328] tcp_transmit_skb+0x56c/0x61c
 [00000000005d61b0] tcp_write_xmit+0xf0/0x344
 [00000000005ca558] tcp_sendmsg+0x1154/0x1318
 [00000000005ecd44] inet_sendmsg+0x44/0x58
 [000000000059d258] sock_aio_write+0xdc/0xf4
 [000000000048e010] do_sync_write+0x50/0x84
 [000000000048e140] vfs_write+0xfc/0x128
Slab corruption: start=fffff80044ab5000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 66 69 6c 65 0a 0a 2a 20
Prev obj: start=fffff80044ab4000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
nfs warning: mount version older than kernel
nfs: server XXXX.com not responding, timed out
nfs: server XXXX.com not responding, timed out
nfs: server XXXX.com not responding, timed out
nfs: server XXXX.com not responding, timed out
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
Slab corruption: start=fffff800c3865000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Prev obj: start=fffff800c3864000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Slab corruption: start=fffff80020e11000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 6e 5f 6c 69 73 74 5f 70
Prev obj: start=fffff80020e10000, len=4096
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Unable to handle kernel paging request in mna handler<1> at virtual
address 6b6b6b6b6b6b6b8b
current->{mm,active_mm}->context = 000000000000076c
current->{mm,active_mm}->pgd = fffff8009c3b4000
              \|/ ____ \|/
              "@'/ .. \`@"
              /_| \__/ |_\
                 \__U_/
tcsh(23169): Oops [#1]
TSTATE: 0000001011f09605 TPC: 000000000045a680 TNPC: 000000000045a65c Y:
00000000    Not tainted
TPC: <__dequeue_signal+0xc8/0x1a0>
g0: fffff80038892530 g1: 0000000000000014 g2: 6b6b6b6b6b6b6b6b g3:
0000000000080000
g4: fffff800dd6979f0 g5: 0000000000000004 g6: fffff8002c890000 g7:
00100211000000c4
o0: 0000000000000014 o1: fffff800dd697ed0 o2: 0000000000000000 o3:
0000000000000020
o4: fffff80002fe9b58 o5: 0000000000000000 sp: fffff8002c893231 ret_pc:
000000000045a5c0
RPC: <__dequeue_signal+0x8/0x1a0>
l0: fffff800037c5188 l1: 0000000000000013 l2: 0000000000000000 l3:
000000000071c400
l4: 000000000000000e l5: 0000000000000001 l6: 0000000000000000 l7:
0000000000000000
i0: 0000000000000014 i1: fffff80059465758 i2: fffff8002c893d30 i3:
000000000000000e
i4: 0000000000000000 i5: 0000000000000000 i6: fffff8002c8932f1 i7:
000000000045a784
I7: <dequeue_signal+0x2c/0x7c>
Caller[000000000045a784]: dequeue_signal+0x2c/0x7c
Caller[000000000045cc2c]: get_signal_to_deliver+0xa8/0x3c8
Caller[0000000000433948]: do_signal32+0x30/0x298
Caller[0000000000431d00]: do_rt_sigsuspend32+0x110/0x12c
Caller[0000000000411158]: sys_ptrace+0x8/0x30
Caller[0000000000000374]: 0x374
Instruction DUMP: c4588000  80a08010  326ffff8 <c200a020> 02c64026
92066020  c25e4000  9010001a  c45e6008
TSTATE: 0000000011f09606 TPC: 000000000044b3f0 TNPC: 000000000044b3f4 Y:
00000000    Not tainted
Debug: sleeping function called from invalid context at
include/linux/rwsem.h:43
in_atomic():0, irqs_disabled():1
Call Trace:
 [00000000004537b4] do_exit+0x9c/0x3e8
 [000000000041b394] die_if_kernel+0x17c/0x188
 [0000000000421c1c] kernel_mna_trap_fault+0xc4/0x100
 [0000000000421d34] kernel_unaligned_trap_fault+0x4/0x2d8
 [000000000041b4b8] mem_address_unaligned+0x28/0x6c
 [0000000000410f40] do_mna+0x3c/0x4c
 [000000000045a5c0] __dequeue_signal+0x8/0x1a0
 [000000000045a784] dequeue_signal+0x2c/0x7c
 [000000000045cc2c] get_signal_to_deliver+0xa8/0x3c8
 [0000000000433948] do_signal32+0x30/0x298
 [0000000000431d00] do_rt_sigsuspend32+0x110/0x12c
 [0000000000411158] sys_ptrace+0x8/0x30
 [0000000000000374] 0x374

~spot

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