[FS#606] Stall on Mediatek

[LEDE Bugs]

The following task has a new comment added:

FS#606 - Stall on Mediatek
User who did this - Karoly Kovacs (karesch)

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[   52.700000] WARNING: CPU: 3 PID: 1980 at net/core/skbuff.c:4194 skb_try_coalesce+0x22c/0x36c()
[   52.720000] 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_tcpmss xt_statistic xt_state xt_recent xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_HL xt_DSCP xt_CLASSIFY 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 iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt sch_cake nf_conntrack act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress mt76x2e mt7603e ledtrig_usbport mt76 mac80211 cfg80211 compat ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables ifb leds_gpio xhci_mtk xhci_plat_hcd xhci_pci xhci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   52.890000] CPU: 3 PID: 1980 Comm: uhttpd Not tainted 4.4.52 #0
[   52.910000] Stack : 00000000 00000000 804c6862 00000033 00000000 00000000 80470000 804e0000
[   52.910000] 	  877918ec 80469c83 803e4c74 00000003 000007bc 804c367c 804837a0 804fade0
[   52.910000] 	  80466880 80063f7c 80470000 804e0000 8046e198 8046e19c 803e9588 87c21bdc
[   52.910000] 	  00000003 80061cc8 804837a0 804fade0 80466880 00000000 00000000 00c21bdc
[   52.910000] 	  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   52.910000] 	  ...
[   52.980000] Call Trace:
[   52.980000] [] show_stack+0x50/0x84
[   52.990000] [] dump_stack+0x84/0xbc
[   53.000000] [] warn_slowpath_common+0xa0/0xd0
[   53.010000] [] warn_slowpath_null+0x18/0x24
[   53.020000] [] skb_try_coalesce+0x22c/0x36c
[   53.030000] [] tcp_try_coalesce+0x4c/0xd0
[   53.040000] [] tcp_queue_rcv+0x60/0x12c
[   53.050000] [] tcp_rcv_established+0x4e4/0x61c
[   53.060000] [] tcp_v4_do_rcv+0xa0/0x1f8
[   53.070000] [] tcp_v4_rcv+0x6c0/0xa28
[   53.080000] [] ip_local_deliver_finish+0xd4/0x134
[   53.090000] [] ip_local_deliver+0xd0/0xe8
[   53.100000] [] ip_rcv+0x2b4/0x320
[   53.110000] [] __netif_receive_skb_core+0x6f0/0x914
[   53.120000] [] process_backlog+0xac/0x184
[   53.130000] [] net_rx_action+0x130/0x2e0
[   53.140000] [] __do_softirq+0x294/0x2e0
[   53.150000] [] irq_exit+0x78/0x94
[   53.160000] [] plat_irq_dispatch+0xb4/0xdc
[   53.160000] 
[   53.170000] ---[ end trace cea7224c49ce0bb3 ]---
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=606#comment2128