[LEDE-DEV] skb_warn_bad_offload + crash at high load on ipq806x

Thu Jun 16 11:50:42 PDT 2016

Sorry for top-posting.

The second stack trace is this one in case the previous mail is too
hard to read:
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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 ]---