IPV6: kernel panic in net filter and ipv6 path while doing interface up and down continuously with ipv6 traffic

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Hi,

Any suggestions/idea about this panic. is it related IPv6 or netfilter.

I looked out for the patches and verified the kernel commit messages I
could not find anything related to this panic.

Any suggestions?

Thanks in advance

Kernel : 2.6.34.10
arch:   Mips


[ 7078.035218] Oops[#1]:
[ 7078.037492] Cpu 0
[ 7078.039416] $ 0   : 0000000000000000 000000000000000c
a8000000e2f3f000 0000000100000060
[ 7078.047482] $ 4   : 00000000ffffff00 0000000000000000
0000000000000020 0000000000000160
[ 7078.055546] $ 8   : 0000000000000100 000000000000000c
0000000060300000 ffffffff80000000
[ 7078.063611] $12   : 0000000000000018 ffffffff8055d950
ffffffff806c2318 0000000000000000
[ 7078.071677] $16   : a800000195fda500 a80000043fe44600
0000000000000000 0000000000000001
[ 7078.079742] $20   : 0000000000000000 a800000195fda100
0000000000000001 ffffffff81221f70
[ 7078.087807] $24   : 2000000000000000 ffffffff8077fb38
[ 7078.095872] $28   : a8000003bd5bc000 a8000003bd5bf8a0
a8000003bd5bf9d0 ffffffff8077f9a0
[ 7078.103937] Hi    : 0000000000000000
[ 7078.107511] Lo    : 0000000000000420
[ 7078.111095] epc   : ffffffff8077fa28 ip6_pkt_drop+0x110/0x1e0
[ 7078.116841]     Not tainted
[ 7078.119636] ra    : ffffffff8077f9a0 ip6_pkt_drop+0x88/0x1e0
[ 7078.125295] Status: 10108ce3    KX SX UX KERNEL EXL IE
[ 7078.130605] Cause : 00800008
[ 7078.133485] BadVA : 0000000100000068
[ 7078.137060] PrId  : 000d910a (Cavium Octeon II)
[ 7078.141590] Modules linked in: ip_tables iptable_filter
iptable_mangle ip6_tables ip6table_filter ip6table_mangle mloopback
bonding bfpga octeon_pow_ether nfnetlink nfnetlink_queue xt_DSCP
xt_NFQUEUE [last unloaded: scsi_wait_scan]
[ 7078.162303] Process wamgr (pid: 1087, threadinfo=a8000003bd5bc000,
task=a80000043edc5400, tls=000000555d1192b0)
[ 7078.172391] Stack : 0000000000000004 a800000195fda500
a800000195f83000 a800000195fda500
[ 7078.180270]         a80000043fda2900 ffffffff806fda9c
ffffffff81116f18 a800000188cfe010
[ 7078.188335]         0000000000000001 a80000018aa9e414
a80000043fda2940 a8000003bd5bf960
[ 7078.196399]         a800000195f83000 ffffffffc00add20
0020000000000000 a80000018aa9e400
[ 7078.204463]         a800000195fda100 a80000018aa9e400
a800000195fda100 ffffffffc00ae788
[ 7078.212527]         ffffffffc00ae8b8 a8000003bd5bf9d0
a800000195fda100 ffffffffc00a43bc
[ 7078.220592]         0000000000000000 0000000000000000
a80000018aa9e414 0000000000000000
[ 7078.228656]         0000000000000000 0000000000000000
0000000000000000 0000000000000000
[ 7078.236720]         0000000000000000 0000000000000000
0000000000000000 a8000003bd5bf930
[ 7078.244784]         ffffffff803b0c68 00000000ffffff01
a80000018aa9e414 0000000000000020
[ 7078.252848]         ...
[ 7078.255502] Call Trace:
[ 7078.257951] [<ffffffff8077fa28>] ip6_pkt_drop+0x110/0x1e0
[ 7078.263353] [<ffffffff806fda9c>] nf_reinject+0x9c/0x180
[ 7078.268585] [<ffffffffc00add20>] nfqnl_recv_verdict+0x2a8/0x368
[nfnetlink_queue]
[ 7078.276074] [<ffffffffc00a43bc>] nfnetlink_rcv_msg+0x21c/0x320 [nfnetlink]
[ 7078.282950]
[ 7078.284440]
[ 7078.284442] Code: 000528f8  7ca2120a  0083182d <dc630008> 00c3302d
00c2302d  dcc20000  64420001  081dfe53
[ 7078.295797] Disabling lock debugging due to kernel taint
[ 7078.301148] Kernel panic - not syncing: Fatal exception in interrupt
[ 7088.034346] INFO: RCU detected CPU 0 stall (t=2500 jiffies)
[ 7118.034349] INFO: RCU detected CPU 0 stall (t=10000 jiffies)
[ 7148.034347] INFO: RCU detected CPU 0 stall (t=17500 jiffies)
[ 7178.034346] INFO: RCU detected CPU 0 stall (t=25000 jiffies)
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