Hey All,
I have been having an issue that is occuring every day now since install 24.10.8 on my NanoPi R6S. This is the dump I am getting:
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.035356] ------------[ cut here ]------------
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.035764] refcount_t: underflow; use-after-free.
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.036190] WARNING: CPU: 6 PID: 6300 at lib/refcount.c:28 0xffff8000804333d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.036813] Modules linked in: pppoe ppp_async nft_fib_inet nf_flow_table_inet pppox ppp_generic nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir nft_quota nft_numgen nft_nat nft_masq nft_log nft_limit nft_hash nft_flow_offload nft_fib_ipv6 nft_fib_ipv4 nft_fib nft_ct nft_chain_nat nf_tables nf_conntrack_netlink ipt_REJECT zstd xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_ecn xt_dscp xt_conntrack xt_comment xt_cgroup xt_addrtype xt_TCPMSS xt_REDIRECT xt_MASQUERADE xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY slhc sch_cake nfnetlink nf_reject_ipv4 nf_log_syslog nf_flow_table macvlan lzo_rle lzo iptable_nat iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt br_netfilter sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_route cls_matchall cls_fw cls_flow cls_basic act_skbedit act_mirred act_gact ip6table_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_NPT ip6table_mangle
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.036937] ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ifb veth tun cifs oid_registry nls_ucs2_utils cifs_md4 cifs_arc4 asn1_decoder autofs4 dns_resolver netfs xxhash_generic sha512_generic sha512_arm64 sha256_arm64 seqiv sha3_generic jitterentropy_rng drbg md5 hmac geniv rng ecb des_generic libdes cmac blake2b_generic crypto_acompress r8169 gpio_button_hotplug(O) btrfs xor zstd_decompress zstd_compress zstd_common xor_neon raid6_pq lzo_decompress lzo_compress
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.048413] CPU: 6 PID: 6300 Comm: b-scheduler Tainted: G O 6.6.144 #0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.049104] Hardware name: FriendlyElec NanoPi R6S (DT)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.049558] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.050165] pc : 0xffff8000804333d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.050469] lr : 0xffff8000804333d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.050773] sp : ffff80008405b930
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.051061] x29: ffff80008405b930 x28: ffff0001016351f0 x27: 0000000000000000
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.051685] x26: ffff8000793f6650 x25: 0000000000000000 x24: ffff000101963f00
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.052309] x23: ffff80008405ba70 x22: 00000000fffffff5 x21: 0000000000000400
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.052933] x20: ffff00010432bc00 x19: ffff00010432bc00 x18: 0000000000000200
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.053555] x17: 000000040044ffff x16: 000000b2b5503510 x15: ffff800080df3ca0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.054178] x14: 0000000000000600 x13: 0000000000000200 x12: 00000000ffffffea
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.054800] x11: 00000000ffffbfff x10: ffff800080f53ca0 x9 : ffff800080df3c48
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.055423] x8 : 000000000005ffe8 x7 : c0000000ffffbfff x6 : 0000000000000001
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.056047] x5 : ffff0002fef41850 x4 : 0000000000000000 x3 : 0000000000000027
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.056670] x2 : 0000000000000027 x1 : 0000000000000023 x0 : 0000000000000026
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.057292] Call trace:
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.057506] 0xffff8000804333d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.057781] 0xffff8000793e0630 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.058315] 0xffff8000793e0ffc [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.058840] 0xffff8000793fc644 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.059365] 0xffff8000793d5504 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.059889] 0xffff8000793d579c [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.060413] 0xffff800080183010
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.060687] 0xffff800080177374
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.060960] 0xffff800080179650
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.061234] 0xffff8000801797ec
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.061508] 0xffff8000793d57dc [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.062033] 0xffff80008025ea54
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.062306] 0xffff80008025ebc4
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.062581] 0xffff80008025ee78
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.062856] 0xffff8000800228e0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.063130] 0xffff800080022998
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.063405] 0xffff8000809976d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.063680] 0xffff800080997b14
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.063955] 0xffff800080011558
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.064230] ---[ end trace 0000000000000000 ]---
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.064690] ------------[ cut here ]------------
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.065093] WARNING: CPU: 6 PID: 6300 at fs/smb/client/smb2ops.c:97 0xffff8000793ef4f0 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.066035] Modules linked in: pppoe ppp_async nft_fib_inet nf_flow_table_inet pppox ppp_generic nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir nft_quota nft_numgen nft_nat nft_masq nft_log nft_limit nft_hash nft_flow_offload nft_fib_ipv6 nft_fib_ipv4 nft_fib nft_ct nft_chain_nat nf_tables nf_conntrack_netlink ipt_REJECT zstd xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_ecn xt_dscp xt_conntrack xt_comment xt_cgroup xt_addrtype xt_TCPMSS xt_REDIRECT xt_MASQUERADE xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY slhc sch_cake nfnetlink nf_reject_ipv4 nf_log_syslog nf_flow_table macvlan lzo_rle lzo iptable_nat iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt br_netfilter sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_route cls_matchall cls_fw cls_flow cls_basic act_skbedit act_mirred act_gact ip6table_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_NPT ip6table_mangle
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.066135] ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ifb veth tun cifs oid_registry nls_ucs2_utils cifs_md4 cifs_arc4 asn1_decoder autofs4 dns_resolver netfs xxhash_generic sha512_generic sha512_arm64 sha256_arm64 seqiv sha3_generic jitterentropy_rng drbg md5 hmac geniv rng ecb des_generic libdes cmac blake2b_generic crypto_acompress r8169 gpio_button_hotplug(O) btrfs xor zstd_decompress zstd_compress zstd_common xor_neon raid6_pq lzo_decompress lzo_compress
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.077598] CPU: 6 PID: 6300 Comm: b-scheduler Tainted: G W O 6.6.144 #0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.078286] Hardware name: FriendlyElec NanoPi R6S (DT)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.078740] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.079346] pc : 0xffff8000793ef4f0 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.079901] lr : 0xffff8000793ef374 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.080456] sp : ffff80008405ba80
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.080745] x29: ffff80008405ba80 x28: ffff000101635000 x27: ffff000137f293b0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.081369] x26: ffff000101963f00 x25: 0000000000000003 x24: 0007ffffffffffff
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.081991] x23: 0000000000000002 x22: 0000000000000040 x21: ffff0001016351d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.082614] x20: 0000000000000000 x19: ffff000101635000 x18: 0000000000000200
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.083237] x17: 000000040044ffff x16: 000000b2b5503510 x15: ffff800080df3ca0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.083860] x14: 0000000000000600 x13: 0000000000000200 x12: 00000000ffffffea
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.084482] x11: 00000000ffffbfff x10: ffff800080f53ca0 x9 : ffff800080df3c48
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.085105] x8 : 0000000000000000 x7 : 0000000000003e06 x6 : ffff000110d11f80
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.085728] x5 : 0000000000003e07 x4 : 0000000000000000 x3 : 0000000000000000
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.086352] x2 : ffff8000793eb6a8 x1 : 000000000000fde8 x0 : 0000000000000583
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.086975] Call trace:
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.087189] 0xffff8000793ef4f0 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.087714] 0xffff8000793d52c8 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.088239] 0xffff8000793d579c [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.088763] 0xffff800080183010
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.089038] 0xffff800080177374
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.089312] 0xffff800080179650
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.089587] 0xffff8000801797ec
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.089862] 0xffff8000793d57dc [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.090386] 0xffff80008025ea54
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.090661] 0xffff80008025ebc4
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.090936] 0xffff80008025ee78
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.091210] 0xffff8000800228e0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.091485] 0xffff800080022998
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.091760] 0xffff8000809976d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.092034] 0xffff800080997b14
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.092309] 0xffff800080011558
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.092584] ---[ end trace 0000000000000000 ]---
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.093026] ------------[ cut here ]------------
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.093430] bad 11f113 @0 page 0 11f
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.093767] WARNING: CPU: 6 PID: 6300 at fs/smb/client/file.c:228 0xffff8000793ce084 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.094692] Modules linked in: pppoe ppp_async nft_fib_inet nf_flow_table_inet pppox ppp_generic nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir nft_quota nft_numgen nft_nat nft_masq nft_log nft_limit nft_hash nft_flow_offload nft_fib_ipv6 nft_fib_ipv4 nft_fib nft_ct nft_chain_nat nf_tables nf_conntrack_netlink ipt_REJECT zstd xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_ecn xt_dscp xt_conntrack xt_comment xt_cgroup xt_addrtype xt_TCPMSS xt_REDIRECT xt_MASQUERADE xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY slhc sch_cake nfnetlink nf_reject_ipv4 nf_log_syslog nf_flow_table macvlan lzo_rle lzo iptable_nat iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt br_netfilter sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_route cls_matchall cls_fw cls_flow cls_basic act_skbedit act_mirred act_gact ip6table_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_NPT ip6table_mangle
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.094792] ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ifb veth tun cifs oid_registry nls_ucs2_utils cifs_md4 cifs_arc4 asn1_decoder autofs4 dns_resolver netfs xxhash_generic sha512_generic sha512_arm64 sha256_arm64 seqiv sha3_generic jitterentropy_rng drbg md5 hmac geniv rng ecb des_generic libdes cmac blake2b_generic crypto_acompress r8169 gpio_button_hotplug(O) btrfs xor zstd_decompress zstd_compress zstd_common xor_neon raid6_pq lzo_decompress lzo_compress
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.106256] CPU: 6 PID: 6300 Comm: b-scheduler Tainted: G W O 6.6.144 #0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.106943] Hardware name: FriendlyElec NanoPi R6S (DT)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.107397] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.108002] pc : 0xffff8000793ce084 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.108557] lr : 0xffff8000793ce084 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.109112] sp : ffff80008405ba40
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.109400] x29: ffff80008405ba40 x28: ffff000101635000 x27: ffff000137f293b0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.110022] x26: ffff000101963f00 x25: 0000000000000003 x24: 0007ffffffffffff
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.110645] x23: ffff800079416a43 x22: 000000000011f113 x21: 0000000000000000
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.111269] x20: 000000000000011f x19: fffffc0004dd1e00 x18: 0000000000000250
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.111892] x17: 000000040044ffff x16: 000000b2b5503510 x15: ffff800080df3ca0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.112515] x14: 00000000000006f0 x13: 0000000000000250 x12: 00000000ffffffea
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.113138] x11: 00000000ffffbfff x10: ffff800080f53ca0 x9 : ffff800080df3c48
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.113761] x8 : 000000000005ffe8 x7 : c0000000ffffbfff x6 : 0000000000000001
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.114385] x5 : ffff0002fef41850 x4 : 0000000000000000 x3 : 0000000000000027
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.115008] x2 : 0000000000000027 x1 : 0000000000000023 x0 : 0000000000000018
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.115631] Call trace:
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.115845] 0xffff8000793ce084 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.116369] 0xffff8000793d53b8 [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.116894] 0xffff8000793d579c [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.117419] 0xffff800080183010
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.117693] 0xffff800080177374
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.117968] 0xffff800080179650
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.118241] 0xffff8000801797ec
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.118516] 0xffff8000793d57dc [cifs@00000000ff842803+0x54000]
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.119041] 0xffff80008025ea54
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.119316] 0xffff80008025ebc4
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.119590] 0xffff80008025ee78
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.119863] 0xffff8000800228e0
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.120138] 0xffff800080022998
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.120413] 0xffff8000809976d8
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.120688] 0xffff800080997b14
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.120962] 0xffff800080011558
Thu Sep 24 20:12:26 2026 kern.warn kernel: [43407.121237] ---[ end trace 0000000000000000 ]---
Thu Sep 24 20:12:28 2026 kern.warn kernel: [43408.195302] CIFS: Serverclose failed 4 times, giving up
Thu Sep 24 20:43:12 2026 kern.warn kernel: [45252.448789] CIFS: Serverclose failed 4 times, giving up
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.800626] Unable to handle kernel paging request at virtual address 00000000c3e3b343
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.801321] Mem abort info:
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.801565] ESR = 0x0000000096000021
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.801892] EC = 0x25: DABT (current EL), IL = 32 bits
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.802385] SET = 0, FnV = 0
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.802653] EA = 0, S1PTW = 0
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.802928] FSC = 0x21: alignment fault
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.803277] Data abort info:
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.803547] ISV = 0, ISS = 0x00000021, ISS2 = 0x00000000
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.804033] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.804473] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.804935] user pgtable: 4k pages, 48-bit VAs, pgdp=00000001109f7000
Thu Sep 24 22:03:21 2026 kern.alert kernel: [50061.805495] [00000000c3e3b343] pgd=0000000000000000, p4d=0000000000000000
Thu Sep 24 22:03:21 2026 kern.emerg kernel: [50061.806099] Internal error: Oops: 0000000096000021 [#1] SMP
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.806585] Modules linked in: pppoe ppp_async nft_fib_inet nf_flow_table_inet pppox ppp_generic nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir nft_quota nft_numgen nft_nat nft_masq nft_log nft_limit nft_hash nft_flow_offload nft_fib_ipv6 nft_fib_ipv4 nft_fib nft_ct nft_chain_nat nf_tables nf_conntrack_netlink ipt_REJECT zstd xt_time xt_tcpudp xt_tcpmss xt_statistic xt_state xt_quota xt_pkttype xt_physdev xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_ecn xt_dscp xt_conntrack xt_comment xt_cgroup xt_addrtype xt_TCPMSS xt_REDIRECT xt_MASQUERADE xt_LOG xt_HL xt_DSCP xt_CT xt_CLASSIFY slhc sch_cake nfnetlink nf_reject_ipv4 nf_log_syslog nf_flow_table macvlan lzo_rle lzo iptable_nat iptable_mangle iptable_filter ipt_ECN ip_tables crc_ccitt br_netfilter sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_route cls_matchall cls_fw cls_flow cls_basic act_skbedit act_mirred act_gact ip6table_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_NPT ip6table_mangle
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.806696] ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ifb veth tun cifs oid_registry nls_ucs2_utils cifs_md4 cifs_arc4 asn1_decoder autofs4 dns_resolver netfs xxhash_generic sha512_generic sha512_arm64 sha256_arm64 seqiv sha3_generic jitterentropy_rng drbg md5 hmac geniv rng ecb des_generic libdes cmac blake2b_generic crypto_acompress r8169 gpio_button_hotplug(O) btrfs xor zstd_decompress zstd_compress zstd_common xor_neon raid6_pq lzo_decompress lzo_compress
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.818170] CPU: 7 PID: 6300 Comm: b-scheduler Tainted: G W O 6.6.144 #0
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.818861] Hardware name: FriendlyElec NanoPi R6S (DT)
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.819316] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.819924] pc : 0xffff8000793e056c [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.820481] lr : 0xffff8000793e0ffc [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.821036] sp : ffff80008405b940
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.821326] x29: ffff80008405b940 x28: ffff0001016351f0 x27: 0000000000000000
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.821949] x26: ffff8000793f6650 x25: 0000000000000000 x24: ffff00010f401500
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.822571] x23: ffff80008405ba70 x22: 00000000ffffff99 x21: 0000000000000400
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.823194] x20: ffff000144cd9cc0 x19: ffff000144cd9cc0 x18: ffff800081993e30
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.823817] x17: 000000040044ffff x16: 000000b2b5503510 x15: 0000000000000000
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.824440] x14: ffff000100393100 x13: ffff80027e2f1000 x12: 0000000000000002
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.825063] x11: 00000000000000c0 x10: 0000000000000900 x9 : ffff80008405b400
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.825685] x8 : ffff0002fef2edc0 x7 : 4400080000000000 x6 : 000000000000000d
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.826308] x5 : ffff000110c16a68 x4 : 0000000000000001 x3 : 0000000000000000
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.826930] x2 : 00000000c3e3b18b x1 : 0000000000000000 x0 : 00000000c3e3b343
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.827554] Call trace:
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.827769] 0xffff8000793e056c [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.828294] 0xffff8000793e0ffc [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.828819] 0xffff8000793fc644 [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.829344] 0xffff8000793d5504 [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.829869] 0xffff8000793d579c [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.830393] 0xffff800080183010
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.830668] 0xffff800080177374
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.830943] 0xffff800080179650
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.831218] 0xffff8000801797ec
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.831492] 0xffff8000793d57dc [cifs@00000000ff842803+0x54000]
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.832016] 0xffff80008025ea54
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.832291] 0xffff80008025ebc4
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.832566] 0xffff80008025ee78
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.832839] 0xffff8000800228e0
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.833114] 0xffff800080022998
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.833389] 0xffff8000809976d8
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.833664] 0xffff800080997b14
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.833939] 0xffff800080011558
Thu Sep 24 22:03:21 2026 kern.emerg kernel: [50061.834215] Code: d2800003 9106e040 52800024 f9800011 (885ffc01)
Thu Sep 24 22:03:21 2026 kern.warn kernel: [50061.834746] ---[ end trace 0000000000000000 ]---
This ends up locking up the router and a reboot is the only thing that resolves it, till the next day.
It seems to happen almost 24 hours apart constantly.
I don't have any scheduled tasks that run.
Any ideas on this would be great.
Thanks
