[LEDE-DEV] skb_warn_bad_offload + crash at high load on ipq806x
Josh Bendavid
joshbendavid at gmail.com
Thu Jun 16 11:48:46 PDT 2016
Ok,
Interestingly triggering a crash again, I get a somewhat different
stack trace. (attached)
On 15 June 2016 at 12:33, Josh Bendavid <joshbendavid at gmail.com> wrote:
> Hi,
> Testing with Tp-Link Archer C2600 (ipq806x) after latest changes (move
> to 4.4 kernel + restore dma ethernet corruption fix), I have random
> reboots on high wired network load.
>
> Managed to get the kernel output during the crash below*. Note that I
> also had similar crashes with 3.18 kernel, but did not get the kernel
> output from those to strictly confirm they are the same.
>
> Not clear to me whether this is a platform specific issue, a more
> general upstream bug, or something related to openwrt/lede patches.
>
> *
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 693.925294]
> ------------[ cut here ]------------
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 693.925337] WARNING:
> CPU: 0 PID: 3 at net/core/dev.c:2422 skb_warn_bad_offload+0xe4/0xf8()
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 693.929065] br-lan:
> caps=(0x000000801fd978a9, 0x0000000000000000) len=1500 data_len=0
> gso_size=3426 gso_type=35530 ip_summed=1
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 693.937164] Modules
> linked in: pppoe ppp_async iptable_nat pppox ppp_generic nf_nat_ipv4
> nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT ipt_MASQUERADE xt_time
> xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id
> xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc
> nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat
> nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache
> nf_conntrack iptable_raw iptable_mangle iptable_fWed Jun 15 04:24:09
> 2016 kern.warn kernel: [ 694.027758] CPU: 0 PID: 3 Comm: ksoftirqd/0
> Not tainted 4.4.13 #1
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.028021] Hardware
> name: Qualcomm (Flattened Device Tree)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.034118] [<c021fea4>]
> (unwind_backtrace) from [<c021cb0c>] (show_stack+0x10/0x14)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.039497] [<c021cb0c>]
> (show_stack) from [<c03a18e8>] (dump_stack+0x88/0x9c)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.047482] [<c03a18e8>]
> (dump_stack) from [<c0227a4c>] (warn_slowpath_common+0x94/0xb0)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.054510] [<c0227a4c>]
> (warn_slowpath_common) from [<c0227a98>] (warn_slowpath_fmt+0x30/0x40)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.062759] [<c0227a98>]
> (warn_slowpath_fmt) from [<c04c50a8>] (skb_warn_bad_offload+0xe4/0xf8)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.071179] [<c04c50a8>]
> (skb_warn_bad_offload) from [<c04c95e0>] (__skb_gso_segment+0x4c/0xd0)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.079858] [<c04c95e0>]
> (__skb_gso_segment) from [<c04fb00c>] (ip_finish_output+0x12c/0x1fc)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.088536] [<c04fb00c>]
> (ip_finish_output) from [<c04fb994>] (ip_output+0x4c/0xb8)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.097223] [<c04fb994>]
> (ip_output) from [<c04f84ac>] (ip_forward+0x278/0x38c)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.104680] [<c04f84ac>]
> (ip_forward) from [<c04f7138>] (ip_rcv+0x244/0x2cc)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.111971] [<c04f7138>]
> (ip_rcv) from [<c04c59ec>] (__netif_receive_skb_core+0x640/0x7a4)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.119265] [<c04c59ec>]
> (__netif_receive_skb_core) from [<c04c82f4>]
> (process_backlog+0x9c/0x134)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.127340] [<c04c82f4>]
> (process_backlog) from [<c04c7a5c>] (net_rx_action+0x120/0x2c8)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.136282] [<c04c7a5c>]
> (net_rx_action) from [<c022b2c0>] (__do_softirq+0xe0/0x21c)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.144529] [<c022b2c0>]
> (__do_softirq) from [<c022b420>] (run_ksoftirqd+0x24/0x44)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.152255] [<c022b420>]
> (run_ksoftirqd) from [<c0243fcc>] (smpboot_thread_fn+0x24c/0x288)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.159638] [<c0243fcc>]
> (smpboot_thread_fn) from [<c0241540>] (kthread+0xf0/0xf8)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.167966] [<c0241540>]
> (kthread) from [<c0209cb8>] (ret_from_fork+0x14/0x3c)
> Wed Jun 15 04:24:09 2016 kern.warn kernel: [ 694.175575] ---[ end
> trace 26d6bdf0ce98e93b ]---
> Wed Jun 15 04:24:14 2016 kern.alert kernel: [ 694.182754] Unable to
> handle kernel paging request at virtual address e20fe366
> Wed Jun 15 04:24:14 2016 kern.alert kernel: [ 694.187486] pgd = da464000
> Wed Jun 15 04:24:14 2016 kern.alert kernel: [ 694.194510] [e20fe366]
> *pgd=00000000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.200587] Internal
> error: Oops: 5 [#1] PREEMPT SMP ARM
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.200853] Modules
> linked in: pppoe ppp_async iptable_nat pppox ppp_generic nf_nat_ipv4
> nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT ipt_MASQUERADE xt_time
> xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id
> xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc
> nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat
> nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache
> nf_conntrack iptable_raw iptable_mangle iptable_fWed Jun 15 04:24:14
> 2016 kern.warn kernel: [ 694.285396] CPU: 0 PID: 3 Comm: ksoftirqd/0
> Tainted: G W 4.4.13 #1
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.285663] Hardware
> name: Qualcomm (Flattened Device Tree)
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.292779] task:
> dd448880 ti: dd456000 task.ti: dd456000
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.298340] PC is at
> put_page+0x0/0x5c
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.303894] LR is at
> skb_release_data+0x6c/0xd4
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.307536] pc :
> [<c02a6898>] lr : [<c04b9434>] psr: 80000013
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.307536] sp :
> dd457d40 ip : 00000000 fp : c07736b0
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.311972] r10:
> da983bf0 r9 : dd41405c r8 : ffffffea
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.323420] r7 :
> da983b40 r6 : d9d436c0 r5 : d9d436f0 r4 : 00000001
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.328631] r3 :
> 000000f4 r2 : 00000000 r1 : 00000000 r0 : e20fe366
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.335230] Flags: Nzcv
> IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.341740] Control:
> 10c5787d Table: 5c46406a DAC: 00000051
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.348942] Process
> ksoftirqd/0 (pid: 3, stack limit = 0xdd456210)
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.354672] Stack:
> (0xdd457d40 to 0xdd458000)
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.360757] 7d40:
> da983b40 000005dc c07a69c0 00000000 ffffffea c04b952c da983b40
> c04fb0b8
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.365189] 7d60:
> 00000001 c04f0f9c da983b40 c07a69c0 00000000 d9d43090 00000008
> dd41405c
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.373351] 7d80:
> da983bf0 c04fb994 da983b40 00000004 80000000 dd457d02 00000000
> dc909000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.381509] 7da0:
> 00000000 c07a69c0 c07a6f5c c04faee0 da983b40 dd414000 c07a69c0
> c04f84ac
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.389669] 7dc0:
> bf280284 00000002 80000000 dd457e02 dd414000 dc909000 00000000
> c07a69c0
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.397830] 7de0:
> c07a6f4c c04f81e8 da983b40 dd414000 d9d43090 dd414000 00000008
> c04f7138
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.405989] 7e00:
> 05eb0404 00000000 80000000 c04c5a02 dd414000 00000000 00000000
> c07a69c0
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.414147] 7e20:
> c07a6f3c c04f6af4 da983b40 c077486c c04f6ef4 c04c59ec c0772100
> 00000000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.422306] 7e40:
> 00000001 00002f54 ddc1e840 da983b40 00000001 da983b40 ddc138b8
> 00000002
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.430468] 7e60:
> ddc13848 00000000 00000001 00000040 ddc138a4 c04c82f4 00000001
> ddc138b0
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.438629] 7e80:
> c0772100 ddc138b8 00000001 00000040 0000012c 000099df c076e840
> dd457ec0
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.446787] 7ea0:
> c0772100 c04c7a5c 00000003 1d4a5000 ddc13840 c077680c c07736b0
> c07736b0
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.454947] 7ec0:
> dd415600 dd414600 dd457ec8 dd457ec8 dca8cd98 00000000 00000003
> c077208c
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.463107] 7ee0:
> c0772080 40000003 dd456000 00000100 c0772080 c022b2c0 c0776d48
> ddc12e40
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.471265] 7f00:
> dd457ef8 c07ae8c0 00000004 000099de c0772100 04208040 dd404d00
> dd456000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.479424] 7f20:
> dd404d00 00000000 00000001 c0778374 00000002 00000000 00000000
> c022b420
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.487584] 7f40:
> dd456000 c0243fcc 00000000 dd404d40 dd404d00 c0243d80 00000000
> 00000000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.495745] 7f60:
> 00000000 c0241540 10106041 00000001 00000000 dd404d00 00000000
> 00030003
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.503907] 7f80:
> dd457f80 dd457f80 00000000 00000000 dd457f90 dd457f90 dd457fac
> dd404d40
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.512064] 7fa0:
> c0241450 00000000 00000000 c0209cb8 00000000 00000000 00000000
> 00000000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.520223] 7fc0:
> 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> Wed Jun 15 04:24:14 2016 kern.emerg kernel: [ 694.528384] 7fe0:
> 00000000 00000000 00000000 00000000 00000013 00000000 90000018
> 41070000
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.536545] [<c02a6898>]
> (put_page) from [<c04b9434>] (skb_release_data+0x6c/0xd4)
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.544698] [<c04b9434>]
> (skb_release_data) from [<c04b952c>] (kfree_skb+0x54/0x60)
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.552162] [<c04b952c>]
> (kfree_skb) from [<c04fb0b8>] (ip_finish_output+0x1d8/0x1fc)
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.559715] [<c04fb0b8>]
> (ip_finish_output) from [<c04fb994>] (ip_output+0x4c/0xb8)
> Wed Jun 15 04:24:14 2016 kern.warn kernel: [ 694.567708] [<c04fb994>]
> (ip_output) from [<c04f84ac>] (ip_forward+0x278/0x38c)
-------------- next part --------------
Thu Jun 16 20:43:19 2016 kern.alert kernel: [ 3010.792756] Unable to handle kernel paging request at virtual address aa24bb10
Thu Jun 16 20:43:19 2016 kern.alert kernel: [ 3010.792787] pgd = c0204000
Thu Jun 16 20:43:19 2016 kern.alert kernel: [ 3010.798878] [aa24bb10] *pgd=00000000
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.805024] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.805203] Modules linked in: pppoe ppp_async iptable_nat pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT ipt_MASQUERADE xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_raw iptable_mangle iptable_fThu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.889747] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G W 4.4.13 #1
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.890014] Hardware name: Qualcomm (Flattened Device Tree)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.897132] task: dd44aec0 ti: dd470000 task.ti: dd470000
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.902519] PC is at kmap_atomic+0x2c/0x158
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.908066] LR is at kmap_atomic+0x10/0x158
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.912060] pc : [<c0224310>] lr : [<c02242f4>] psr: 80000113
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.912060] sp : dd471df0 ip : 00000000 fp : 02080020
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.916236] r10: 00000005 r9 : dd41405c r8 : da834cc0
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.927687] r7 : ddfc1c00 r6 : 00000001 r5 : d8dbaf80 r4 : aa24bb10
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.932894] r3 : 00000001 r2 : dd44aec0 r1 : 00000000 r0 : 00000001
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.939494] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3010.946004] Control: 10c5787d Table: 5c47c06a DAC: 00000051
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.953207] Process swapper/1 (pid: 0, stack limit = 0xdd470210)
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.958937] Stack: (0xdd471df0 to 0xdd472000)
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.965018] 1de0: 00000000 d8dbaf80 00000001 ddfc1c00
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.969282] 1e00: da834cc0 c04b74cc 00000001 5af7e97e dd414000 da834cc0 c077486c dd414048
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.977440] 1e20: dd414000 00000008 dd41405c da834d70 c07736b0 c04c59c8 dd471e38 00000000
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.985601] 1e40: c076de40 dd41e900 00000001 da834cc0 00000000 da834cc0 ddc1e8b8 0000000c
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3010.993759] 1e60: ddc1e848 00000000 00000001 00000040 ddc1e8a4 c04c82f4 dd4499c8 ddc1e8b0
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.001922] 1e80: dd4499c8 ddc1e8b8 00000001 00000040 0000012c 000422e2 c076e840 dd471ec0
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.010078] 1ea0: c0772100 c04c7a5c c0772088 1d4b0000 ddc1e840 c077680c c07736b0 c07736b0
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.018239] 1ec0: dd471ec0 dd471ec0 dd471ec8 dd471ec8 dd44b184 00000000 00000003 c077208c
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.026399] 1ee0: c0772080 40000003 dd470000 00000101 c0772080 c022b2c0 ddc1bde0 00000000
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.034559] 1f00: dd471ef8 c07ae8c0 0000000a 000422e1 c0772100 00200040 ddc1e840 c076c268
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.042717] 1f20: 00000001 00000004 00000000 c076c268 dd471f88 dd471fe0 c0772488 c022b68c
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.050879] 1f40: c076c268 c021f1a0 c077ee70 c0772f54 de80200c dd471f88 de802000 de803000
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.059037] 1f60: dd471fe0 c020943c c0219d58 60000013 ffffffff dd471fbc 00000000 c076b2e4
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.067199] 1f80: dd471fe0 c020a594 00000001 00000000 00000000 c020b4a0 dd470000 c0772480
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.075358] 1fa0: c067da5c 00000000 00000000 c076b2e4 dd471fe0 c0772488 c0772140 dd471fd8
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.083519] 1fc0: c0219d54 c0219d58 60000013 ffffffff 00000051 00000000 dd470000 c025c95c
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.091680] 1fe0: c076d310 c077670f 5f45806a c07ae2e0 00000000 422094ec 92202202 a6803404
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.099839] [<c0224310>] (kmap_atomic) from [<c04b74cc>] (skb_copy_ubufs+0x68/0x158)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.107997] [<c04b74cc>] (skb_copy_ubufs) from [<c04c59c8>] (__netif_receive_skb_core+0x61c/0x7a4)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.115808] [<c04c59c8>] (__netif_receive_skb_core) from [<c04c82f4>] (process_backlog+0x9c/0x134)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.124572] [<c04c82f4>] (process_backlog) from [<c04c7a5c>] (net_rx_action+0x120/0x2c8)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.133516] [<c04c7a5c>] (net_rx_action) from [<c022b2c0>] (__do_softirq+0xe0/0x21c)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.141762] [<c022b2c0>] (__do_softirq) from [<c022b68c>] (irq_exit+0x98/0xec)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.149489] [<c022b68c>] (irq_exit) from [<c021f1a0>] (handle_IPI+0xdc/0x1c0)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.156516] [<c021f1a0>] (handle_IPI) from [<c020943c>] (gic_handle_irq+0x80/0x94)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.163720] [<c020943c>] (gic_handle_irq) from [<c020a594>] (__irq_svc+0x54/0x90)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.171178] Exception stack(0xdd471f88 to 0xdd471fd0)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.178736] 1f80: 00000001 00000000 00000000 c020b4a0 dd470000 c0772480
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.183776] 1fa0: c067da5c 00000000 00000000 c076b2e4 dd471fe0 c0772488 c0772140 dd471fd8
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.191930] 1fc0: c0219d54 c0219d58 60000013 ffffffff
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.200088] [<c020a594>] (__irq_svc) from [<c0219d58>] (arch_cpu_idle+0x34/0x50)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.205129] [<c0219d58>] (arch_cpu_idle) from [<c025c95c>] (cpu_startup_entry+0x178/0x24c)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.212592] [<c025c95c>] (cpu_startup_entry) from [<422094ec>] (0x422094ec)
Thu Jun 16 20:43:19 2016 kern.emerg kernel: [ 3011.220666] Code: e593200c e59233f8 e2833001 e58233f8 (e5943000)
Thu Jun 16 20:43:19 2016 kern.warn kernel: [ 3011.227601] ---[ end trace 032deba5e46749ed ]---
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