[FS#1102] Kernel crash on mt7621 at mm/slub.c

LEDE Bugs lede-bugs at lists.infradead.org
Mon Oct 23 06:43:07 PDT 2017


The following task has a new comment added:

FS#1102 - Kernel crash on mt7621 at mm/slub.c
User who did this - Pierre Parent (pparent76)

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Same for me:

[ 1502.838575] ------------[ cut here ]------------
[ 1502.843236] WARNING: CPU: 0 PID: 0 at mm/slub.c:3843 ksize+0xe0/0xf8
[ 1502.849645] Modules linked in: xt_coova pppoe ppp_async rtl8192cu rtl8192c_common rtl_usb pppox ppp_generic nf_conntrack_ipv6 iptable_nat 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_CT xt_CLASSIFY slhc rtlwifi nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt em_cmp em_nbyte sch_dsmark sch_pie act_ipt sch_codel sch_gred em_meta sch_teql cls_basic sch_prio em_text sch_sfq act_police sch_fq sch_red
[ 1502.920316]  act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress mt7603e ledtrig_usbport mt76 mac80211 cfg80211 compat 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 ip6table_mangle ip6table_filter ip6_tables x_tables tun mmc_block usb_storage 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 ext4 jbd2 mbcache usbcore nls_base usb_common crc32c_generic [last unloaded: xt_coova][ 1502.991242] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W       4.9.54 #0
[ 1502.998342] Stack : 00000000 00000000 80557b2a 00000041 80406a24 00000000 00000000 80550000
[ 1503.006690]         804ec2bc 804ebea7 80482c5c 00000000 00000000 80553824 8eb5e000 8e8c3180
[ 1503.015035]         00000000 8006b878 00000001 80550000 804f1fa4 804f1fa8 80487844 8fc0d940
[ 1503.023378]         00000003 800a9fd0 8eb5e000 8e8c3180 00001136 00000007 8fd36084 00c0d940
[ 1503.031723]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1503.040067]         ...
[ 1503.042503] Call Trace:
[ 1503.044964] [] show_stack+0x54/0x88
[ 1503.049321] [] dump_stack+0x8c/0xd0
[ 1503.053661] [] __warn+0xe4/0x118
[ 1503.057738] [] warn_slowpath_null+0x1c/0x30
[ 1503.062771] [] ksize+0xe0/0xf8
[ 1503.066680] [] pskb_expand_head+0x98/0x23c
[ 1503.071813] [] ieee80211_probereq_get+0xb48/0x190c [mac80211]
[ 1503.078546] ---[ end trace fd0a287d6cd19bd7 ]---
[ 1503.083482] CPU 0 Unable to handle kernel paging request at virtual address 00004000, epc == 800eb628, ra == 800eb5ac
[ 1503.094144] Oops[#1]:
[ 1503.096415] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W       4.9.54 #0
[ 1503.103518] task: 804ebfa0 task.stack: 804dc000
[ 1503.108023] $ 0   : 00000000 00000001 00004000 00004000
[ 1503.113240] $ 4   : 00000000 804e95fc 814945d0 02080020
[ 1503.118458] $ 8   : 00000002 00010fd8 00000018 00000001
[ 1503.123675] $12   : 00000002 00000003 00000005 0c8cb4b3
[ 1503.128889] $16   : 02090220 8fc02d00 00000000 8f1ccd80
[ 1503.134106] $20   : 802d90c0 00000720 8eb5e000 8e8c3180
[ 1503.139320] $24   : 00000010 803ccf20                  
[ 1503.144537] $28   : 804dc000 8fc0d9c4 00000000 800eb5ac
[ 1503.149752] Hi    : 00000002
[ 1503.152613] Lo    : 00000000
[ 1503.155508] epc   : 800eb628 __kmalloc_track_caller+0x12c/0x1fc
[ 1503.161400] ra    : 800eb5ac __kmalloc_track_caller+0xb0/0x1fc
[ 1503.167200] Status: 11008403      KERNEL EXL IE 
[ 1503.171376] Cause : 40800008 (ExcCode 02)
[ 1503.175361] BadVA : 00004000
[ 1503.178224] PrId  : 0001992f (MIPS 1004Kc)
[ 1503.182294] Modules linked in: xt_coova pppoe ppp_async rtl8192cu rtl8192c_common rtl_usb pppox ppp_generic nf_conntrack_ipv6 iptable_nat 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_CT xt_CLASSIFY slhc rtlwifi nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt em_cmp em_nbyte sch_dsmark sch_pie act_ipt sch_codel sch_gred em_meta sch_teql cls_basic sch_prio em_text sch_sfq act_police sch_fq sch_red
[ 1503.252829]  act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress mt7603e ledtrig_usbport mt76 mac80211 cfg80211 compat 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 ip6table_mangle ip6table_filter ip6_tables x_tables tun mmc_block usb_storage 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 ext4 jbd2 mbcache usbcore nls_base usb_common crc32c_generic [last unloaded: xt_coova]Process swapper/0 (pid: 0, threadinfo=804dc000, task=804ebfa0, tls=00000000)
[ 1503.330346] Stack : 8dc3bb01 f80000ff 8f2cdb78 8fd36098 8f2cdb7c 8e848480 02080020 802d88e8
[ 1503.338694]         8f2ccc30 8e8c3180 00000000 8f25a9fc 8e848600 8e848480 00000000 02080020
[ 1503.347039]         8f1ccd80 8fef0480 00000001 802d90c0 8e848480 8f1ccd80 8fef0480 8f304a18
[ 1503.355385]         8f2ccba0 00000014 8eff2500 8f1ccd80 8fef0480 8fef0000 8eb5e000 8f329150
[ 1503.363731]         8eff2500 8f1ccd80 00000000 8e848480 8e848480 8f32d53c 00010000 804df240
[ 1503.372074]         ...
[ 1503.374512] Call Trace:
[ 1503.376951] [] __kmalloc_track_caller+0x12c/0x1fc
[ 1503.382504] [] __kmalloc_reserve.isra.4+0x44/0xa8
[ 1503.388051] [] pskb_expand_head+0x88/0x23c
[ 1503.393169] [] ieee80211_probereq_get+0xb48/0x190c [mac80211]
[ 1503.399796] Code: 32038000  8e230014  00431821  41686000  31080001  000000c0  8f86000c  8e230000 
[ 1503.409538] 
[ 1503.411298] ---[ end trace fd0a287e6cd19bd7 ]---

[19202.879743] ------------[ cut here ]------------
[19202.884402] WARNING: CPU: 3 PID: 0 at mm/slub.c:3843 ksize+0xe0/0xf8
[19202.890789] Modules linked in: xt_coova pppoe ppp_async rtl8192cu rtl8192c_common rtl_usb pppox ppp_generic nf_conntrack_ipv6 iptable_nat 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_CT xt_CLASSIFY slhc rtlwifi nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt em_cmp em_nbyte sch_dsmark sch_pie act_ipt sch_codel sch_gred em_meta sch_teql cls_basic sch_prio em_text sch_sfq act_police sch_fq sch_red
[19202.961498]  act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress mt7603e ledtrig_usbport mt76 mac80211 cfg80211 compat 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 ip6table_mangle ip6table_filter ip6_tables x_tables tun mmc_block usb_storage 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 ext4 jbd2 mbcache usbcore nls_base usb_common crc32c_generic [last unloaded: xt_coova][19203.032447] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G        W       4.9.54 #0
[19203.039549] Stack : 00000000 00000000 80557b2a 00000041 80406a24 00000000 00000000 80550000
[19203.047897]         8fc5499c 804ebea7 80482c5c 00000003 00000000 80553824 02080020 8fd3705c
[19203.056241]         804e95fc 8006b878 00000001 80550000 804f1fa4 804f1fa8 80487844 8fc21ce0
[19203.064589]         00000003 800a9fd0 02080020 8fd3705c 0000329a 00000007 8f21db00 00c21ce0
[19203.072937]         00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[19203.081299]         ...
[19203.083744] Call Trace:
[19203.086218] [] show_stack+0x54/0x88
[19203.090590] [] dump_stack+0x8c/0xd0
[19203.094939] [] __warn+0xe4/0x118
[19203.099026] [] warn_slowpath_null+0x1c/0x30
[19203.104081] [] ksize+0xe0/0xf8
[19203.107999] [] pskb_expand_head+0x98/0x23c
[19203.112958] [] ip_forward+0x374/0x45c
[19203.117474] [] ip_rcv+0x2b8/0x320
[19203.121653] [] __netif_receive_skb_core+0x718/0x970
[19203.127384] [] process_backlog+0x9c/0x160
[19203.132248] [] net_rx_action+0x138/0x2fc
[19203.137033] [] __do_softirq+0x294/0x2e0
[19203.141726] [] irq_exit+0x7c/0x98
[19203.145913] [] plat_irq_dispatch+0xb4/0xdc
[19203.150866] [] except_vec_vi_end+0xb8/0xc4
[19203.155842] [] cpu_startup_entry+0x104/0x170
[19203.161091] ---[ end trace 09207f98d12feebb ]---
[19203.165803] Kernel bug detected[#1]:
[19203.165897] CPU 3 Unable to handle kernel paging request at virtual address 00004000, epc == 800eb628, ra == 800eb5ac
[19203.179938] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W       4.9.54 #0
[19203.187042] task: 804ebfa0 task.stack: 804dc000
[19203.191547] $ 0   : 00000000 80550000 81026b40 00000001
[19203.196767] $ 4   : 00000000 81026b53 000f0000 811da600
[19203.201984] $ 8   : 804f0000 80584864 8fc0df54 8fc0df54
[19203.207198] $12   : 11000000 ffffffff 00000000 0000002d
[19203.212415] $16   : 8eaaa600 8ffa1308 8ffa1000 0000007d
[19203.217631] $20   : 000000ca 0000003f 8ffa1308 00000018
[19203.222846] $24   : 00000000 8000c30c                  
[19203.228063] $28   : 804dc000 8fc0de3c ffffffff 802d5e00
[19203.233278] Hi    : 00000003
[19203.236139] Lo    : 00000000
[19203.239036] epc   : 800e9b90 kfree+0x78/0x1a4
[19203.243394] ra    : 802d5e00 __kfree_skb+0x14/0xa4
[19203.248157] Status: 11008403      KERNEL EXL IE 
[19203.252333] Cause : 50800034 (ExcCode 0d)
[19203.256319] PrId  : 0001992f (MIPS 1004Kc)
[19203.260389] Modules linked in: xt_coova pppoe ppp_async rtl8192cu rtl8192c_common rtl_usb pppox ppp_generic nf_conntrack_ipv6 iptable_nat 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_CT xt_CLASSIFY slhc rtlwifi nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt em_cmp em_nbyte sch_dsmark sch_pie act_ipt sch_codel sch_gred em_meta sch_teql cls_basic sch_prio em_text sch_sfq act_police sch_fq sch_red
[19203.330928]  act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress mt7603e ledtrig_usbport mt76 mac80211 cfg80211 compat 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 ip6table_mangle ip6table_filter ip6_tables x_tables tun mmc_block usb_storage 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 ext4 jbd2 mbcache usbcore nls_base usb_common crc32c_generic [last unloaded: xt_coova]Process swapper/0 (pid: 0, threadinfo=804dc000, task=804ebfa0, tls=00000000)
[19203.408441] Stack : 000000ca 0000003f 8ffa1308 00000018 8ef712d8 802b0400 0003000f 802b2240
[19203.416786]         8e245c60 8eaa10c0 00000000 aef74b40 00000001 8ffa14b8 000000c9 802b2658
[19203.425131]         803f7afc 8149e440 802e6138 00000001 0000012b 80510000 804df9c0 00000001
[19203.433476]         8fdc7900 00000001 80580000 0000000f 00030000 9bfe8000 01000000 00000010
[19203.441822]         30000000 8009483c 0e245ca0 01000000 0f2d4480 00000004 00000040 804df9c0
[19203.450167]         ...
[19203.452603] Call Trace:
[19203.455038] [] kfree+0x78/0x1a4
[19203.459038] [] __kfree_skb+0x14/0xa4
[19203.463475] [] fe_txd_unmap+0xd4/0xec
[19203.467986] [] fe_poll+0x134/0x700
[19203.472243] [] net_rx_action+0x138/0x2fc
[19203.477022] [] __do_softirq+0x294/0x2e0
[19203.481705] [] irq_exit+0x7c/0x98
[19203.485882] [] plat_irq_dispatch+0xb4/0xdc
[19203.490831] [] except_vec_vi_end+0xb8/0xc4
[19203.495777] [] r4k_wait_irqoff+0x18/0x20
[19203.500572] [] cpu_startup_entry+0x104/0x170
[19203.505712] [] start_kernel+0x47c/0x49c
[19203.510392] Code: 30630001  24030001  38630001  8c430000  7c630380  10600003  00000000  10000002 
[19203.520132] 
[19203.521619] Oops[#2]:
[19203.521836] ---[ end trace 09207f99d12feebb ]---

===================================
Time: 1508726234.629265
[19203.526701] Kernel panic - not syncing: Fatal exception in interrupt

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1102#comment3674



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