OpenWrt/LEDE Project

  • Status Unconfirmed
  • Percent Complete
    0%
  • Task Type Bug Report
  • Category Base system
  • Assigned To No-one
  • Operating System All
  • Severity Critical
  • Priority Very Low
  • Reported Version Trunk
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by Roland - 02.08.2020

FS#3264 - R7800 router crashes when Macbook Air joins the network

Supply the following if possible:
- Device problem occurs on: Netgear R7800 Router, Macbook Air 11” Mid-2013, Macbook Air 13” 2017
- Software versions of OpenWrt/LEDE release: LuCI branch git-20.201.65700-7edd635
- Steps to reproduce: I join the device to the network with either ethernet or wifi and the router would shortly crash. I simply reboot the router and connect the macbook via ethernet or wifi after the router is up. I would then run a speedtest (it’s not related to any particular activity, but I just use speedtest.net as a control)
- Attempts at trying to remedy issue: I tried disabling IPv6 on the router and macbooks. I signed out of icloud. I updated Macbooks to MacOS Catalina. I tried flashing router to latest stable release 19.07.3. The network only dies when these Macbook Airs connect to the network, all other devices don’t have any issues. Prior to this router, I had a Netgear AC1900 (R7000) running DD-WRT which never had this issue.

External logs captured before crash:
8/2/2020 14:14 Alert 192.168.1.1 [ 189.332615] 8←– cut here — 8/2/2020 14:14 Alert 192.168.1.1 [ 189.332636] Unable to handle kernel NULL pointer dereference at virtual address 0000000c
8/2/2020 14:14 Alert 192.168.1.1 [ 189.334560] pgd = eb7a8104
8/2/2020 14:14 Alert 192.168.1.1 [ 189.342856] [0000000c] *pgd=00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.345391] Internal error: Oops: 17 [#1] SMP ARM
8/2/2020 14:14 Warning 192.168.1.1 [ 189.349049] Modules linked in: ksmbd ath9k ath9k_common pppoe ppp_async ath9k_hw ath10k_pci ath10k_core ath qmi_wwan pppox ppp_generic mac80211 iptable_nat ipt_REJECT cfg80211 xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_recent xt_policy xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_geoip xt_esp xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_TCPMSS xt_REDIRECT xt_MASQUERADE xt_LOG xt_HL xt_FLOWOFFLOAD xt_DSCP xt_CT xt_CLASSIFY wireguard usbnet ums_usbat ums_sddr55 ums_sddr09 ums_karma ums_jumpshot ums_isd200 ums_freecom ums_datafab ums_cypress ums_alauda slhc sch_cake nf_reject_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_conntrack_rtcache nf_conntrack_netlink nf_conncount iptable_raw iptable_mangle iptable_filter ipt_ah ipt_ECN ip_tables crc_ccitt compat cdc_wdm fuse act_connmark nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_tcindex cls_route cls_matchall
8/2/2020 14:14 Warning 192.168.1.1 [ 189.349149] cls_fw cls_flow cls_basic act_skbedit act_mirred ledtrig_usbport ledtrig_heartbeat xt_set ip_set_list_set ip_set_hash_netportnet ip_set_hash_netport ip_set_hash_netnet ip_set_hash_netiface ip_set_hash_net 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 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ip6_gre ip_gre gre ifb ip6_udp_tunnel udp_tunnel sit ipcomp6 xfrm6_tunnel esp6 ah6 xfrm4_tunnel ipcomp esp4 ah4 ip6_tunnel tunnel6 tunnel4 ip_tunnel tun xfrm_user xfrm_ipcomp af_key xfrm_algo vfat fat autofs4 nls_utf8 nls_iso8859_1 nls_cp437 rfkill sha512_generic sha1_generic seqiv md5 md4 ghash_generic gf128mul gcm echainiv ecb des_generic libdes ctr cmac ccm cbc authenc arc4 uas usb_storage leds_gpio xhci_plat_hcd xhci_pci xhci_hcd dwc3 dwc3_qcom ohci_platform ohci_hcd phy_qcom_dwc3 ahci
8/2/2020 14:14 Warning 192.168.1.1 [ 189.418843] fsl_mph_dr_of ehci_platform ehci_fsl sd_mod ahci_platform libahci_platform libahci libata scsi_mod ehci_hcd gpio_button_hotplug f2fs ext4 mbcache jbd2 exfat(C) crc32c_generic crc32_generic
8/2/2020 14:14 Warning 192.168.1.1 [ 189.528411] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G C 5.4.52 #0
8/2/2020 14:14 Warning 192.168.1.1 [ 189.546362] Hardware name: Generic DT based system
8/2/2020 14:14 Warning 192.168.1.1 [ 189.553873] Workqueue: ksmbd-io handle_ksmbd_work [ksmbd]
8/2/2020 14:14 Warning 192.168.1.1 [ 189.558534] PC is at ksmbd_free_user+0xc/0×38 [ksmbd]
8/2/2020 14:14 Warning 192.168.1.1 [ 189.564001] LR is at smb_session_disconnect+0×40/0xa4 [ksmbd]
8/2/2020 14:14 Warning 192.168.1.1 [ 189.569016] pc : [<bf9242e0>] lr : [<bf9402ac>] psr: 60000013
8/2/2020 14:14 Warning 192.168.1.1 [ 189.574745] sp : dd459ee0 ip : d83da240 fp : bf94f004
8/2/2020 14:14 Warning 192.168.1.1 [ 189.580820] r10: bf958234 r9 : 000001d0 r8 : bf957b58
8/2/2020 14:14 Warning 192.168.1.1 [ 189.586030] r7 : d83da200 r6 : 00000000 r5 : d69b2a00 r4 : 00000000
8/2/2020 14:14 Warning 192.168.1.1 [ 189.591238] r3 : d83da200 r2 : 00000003 r1 : 00000001 r0 : 00000000
8/2/2020 14:14 Warning 192.168.1.1 [ 189.597838] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
8/2/2020 14:14 Warning 192.168.1.1 [ 189.604348] Control: 10c5787d Table: 5eb7806a DAC: 00000051
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.611551] Process kworker/0:0 (pid: 5
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.617280] Stack: (0xdd459ee0 to 0xdd45a000)
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.623367] 9ee0: dcbcc480 bf9402ac d83da200 dcbcc480 dcbcc4dc 00000074 bf957b58 bf9290e4
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.627799] 9f00: dcddb704 dcde6400 c0c221cc dcbcc4dc dd40f500 dda09840 ff7e6500 00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.635957] 9f20: 00000000 00000000 dd458000 c033a684 00000008 dda09858 dd40f500 dd40f514
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.644116] 9f40: dda09840 00000008 dda09858 c0c03d00 dda09840 c033a948 c0c0c35c c0c0c318
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.652276] 9f60: dd41951c dd419500 dd419280 dd458000 dd41951c dd43bea4 dd40f500 c033a8f4
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.660436] 9f80: 00000000 c0340724 00000000 dd419280 c0340608 00000000 00000000 00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.668596] 9fa0: 00000000 00000000 00000000 c03010e8 00000000 00000000 00000000 00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.676755] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.684915] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
8/2/2020 14:14 Warning 192.168.1.1 [ 189.693179] [<bf9242e0>] (ksmbd_free_user [ksmbd]) from [<bf9402ac>] (smb_session_disconnect+0×40/0xa4 [ksmbd])
8/2/2020 14:14 Warning 192.168.1.1 [ 189.701271] [<bf9402ac>] (smb_session_disconnect [ksmbd]) from [<bf9290e4>] (handle_ksmbd_work+0x18c/0×500 [ksmbd])
8/2/2020 14:14 Warning 192.168.1.1 [ 189.711150] [<bf9290e4>] (handle_ksmbd_work [ksmbd]) from [<c033a684>] (process_one_work+0x1f8/0×468)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.721543] [<c033a684>] (process_one_work) from [<c033a948>] (worker_thread+0×54/0×588)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.730919] [<c033a948>] (worker_thread) from [<c0340724>] (kthread+0x11c/0×148)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.739077] [<c0340724>] (kthread) from [<c03010e8>] (ret_from_fork+0×14/0x2c)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.746448] Exception stack(0xdd459fb0 to 0xdd459ff8)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.753483] 9fa0: 00000000 00000000 00000000 00000000
8/2/2020 14:14 Warning 192.168.1.1 [ 189.758613] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
8/2/2020 14:14 Warning 192.168.1.1 [ 189.766769] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
8/2/2020 14:14 Emergency 192.168.1.1 [ 189.774929] Code: eaffffd1 e52d4008 e1a04000 e58de004 (e590000c)
8/2/2020 14:14 Warning 192.168.1.1 [ 189.781453] —[ end trace 469d54bcbf49ae73 ]—

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