[FS#1518] kernel error: CPU: 2 PID: 27318 Comm: cat Not tainted 4.14.34

Thu Apr 26 04:17:45 PDT 2018

A new Flyspray task has been opened.  Details are below. 

User who did this - camel (camel) 

Attached to Project - OpenWrt/LEDE Project
Summary - kernel error: CPU: 2 PID: 27318 Comm: cat Not tainted 4.14.34
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Model	ZBT-WG3526 (16M)
Firmware Version	OpenWrt SNAPSHOT r6755-d089a5d / LuCI Master (git-18.113.52925-0c30ee0)
Kernel Version	4.14.34

error is comming after a while .. :(

Thu Apr 26 12:59:00 2018 kern.warn kernel: [69277.917386] ------------[ cut here ]------------
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69277.922064] WARNING: CPU: 2 PID: 27318 at lib/iov_iter.c:695 copy_page_to_iter+0xc4/0x508
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69277.930339] Modules linked in: pppoe ppp_async option usb_wwan pptp pppox ppp_mppe ppp_generic nf_nat_pptp nf_conntrack_pptp nf_conntrack_ipv6 mt76x2e mt7603e mt76 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 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_NETMAP xt_LOG xt_HL xt_FLOWOFFLOAD xt_DSCP xt_CT xt_CLASSIFY usbserial usb_storage ts_fsm ts_bm slhc nf_reject_ipv4 nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_redirect nf_nat_proto_gre nf_nat_masquerade_ipv4 nf_nat_irc nf_conntrack_ipv4 nf_nat_ipv4 nf_nat_h323 nf_nat_amanda nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.001388]  nf_conntrack_tftp nf_conntrack_snmp nf_conntrack_sip nf_conntrack_rtcache nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_irc nf_conntrack_h323 nf_conntrack_broadcast ts_kmp nf_conntrack_amanda macvlan iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt compat br_netfilter fuse 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 ledtrig_usbport xt_set ip_set_list_set ip_set_hash_netiface ip_set_hash_netport ip_set_hash_netnet ip_set_hash_net ip_set_hash_netportnet ip_set_hash_mac ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport ip_set_hash_ipmark ip_set_hash_ip ip_set_bitmap_port ip_set_bitmap_ipmac ip_set_bitmap_ip ip_set nfnetlink ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.072898]  ip6table_mangle ip6table_filter ip6_tables x_tables ip_gre gre ifb ip_tunnel tun vfat fat f2fs ext4 jbd2 mbcache nls_utf8 nls_iso8859_1 nls_cp437 sha1_generic ecb crc32c_generic crc32_generic mmc_block mtk_sd mmc_core leds_gpio xhci_mtk xhci_plat_hcd xhci_pci xhci_hcd ahci libahci libata sd_mod scsi_mod gpio_button_hotplug usbcore nls_base usb_common
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.105236] CPU: 2 PID: 27318 Comm: cat Not tainted 4.14.34 #0
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.111065] Stack : 00000000 00000000 00000000 00000000 805f7ada 00000032 00000000 00000000
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.119416]         8f0ac1f4 80590927 8051cabc 00000002 00006ab6 00000001 8dca3be8 b3f6da0b
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.127750]         00000000 00000000 805f0000 00008808 00000000 00000199 00000008 00000000
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.136087]         00000000 80590000 00019b14 00000000 80000000 00000000 805b0000 80229950
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.144432]         00000009 000002b7 00000000 8dca3db0 00000001 802911d0 00000008 805f0008
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.152779]         ...
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.155227] Call Trace:
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.157698] [] show_stack+0x58/0x100
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.162148] [] dump_stack+0x9c/0xe0
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.166501] [] __warn+0xe0/0x114
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.170581] [] warn_slowpath_null+0x1c/0x30
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.175621] [] copy_page_to_iter+0xc4/0x508
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.180656] [] shmem_file_read_iter+0x2c0/0x3c0
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.186080] [] generic_file_splice_read+0xec/0x170
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.191721] [] splice_direct_to_actor+0xc8/0x234
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.197187] [] do_splice_direct+0x98/0xd0
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.202061] [] do_sendfile+0x284/0x478
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.206683] [] SyS_sendfile64+0x84/0xd8
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.211399] [] syscall_common+0x34/0x58
Thu Apr 26 12:59:00 2018 kern.warn kernel: [69278.216566] ---[ end trace b0a90f34a85fa703 ]---

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1518