On Thu, Dec 8, 2022 at 4:44 PM Breno Leitao [off-list ref] wrote:

On Wed, Dec 07, 2022 at 06:59:38PM +0100, Eric Dumazet wrote:

quoted

Try to give us symbols with scripts/decode_stacktrace.sh , thanks.

Sorry, here it is:

 [749619.538804] WARNING: CPU: 19 PID: 0 at net/ipv4/tcp.c:4552 tcp_sock_warn+0x6/0x20
 [749619.553969] Modules linked in: sch_fq sunrpc bpf_preload tls act_gact cls_bpf tcp_diag inet_diag skx_edac nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iTCO_wdt iTCO_vendor_support kvm evdev ses irqbypass enclosure i2c_i801 i2c_smbus ipmi_si ipmi_devintf ipmi_msghandler acpi_cpufreq button tpm_crb sch_fq_codel vhost_net tun tap vhost vhost_iotlb virtio_net net_failover failover mpls_gso mpls_iptunnel mpls_router ip_tunnel fou ip6_udp_tunnel udp_tunnel fuse sg nvme mpi3mr scsi_transport_sas nvme_core xhci_pci xhci_hcd loop efivarfs autofs4
 [749619.678066] Hardware name: XXXXX
 [749619.695308] RIP: tcp_sock_warn+0x6/0x20
 [749619.704034] Code: 4d 01 3e 85 c0 0f 84 57 ff ff ff 48 8b 0c 24 44 8b 01 eb 82 e8 eb b7 14 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 53 <0f> 0b 48 85 ff 0f 85 77 70 14 00 5b c3 66 66 2e 0f 1f 84 00 00 00
 All code
 ========
    0:  4d 01 3e                add    %r15,(%r14)
    3:  85 c0                   test   %eax,%eax
    5:  0f 84 57 ff ff ff       je     0xffffffffffffff62
    b:  48 8b 0c 24             mov    (%rsp),%rcx
    f:  44 8b 01                mov    (%rcx),%r8d
   12:  eb 82                   jmp    0xffffffffffffff96
   14:  e8 eb b7 14 00          callq  0x14b804
   19:  66 66 2e 0f 1f 84 00    data16 nopw %cs:0x0(%rax,%rax,1)
   20:  00 00 00 00
   24:  0f 1f 44 00 00          nopl   0x0(%rax,%rax,1)
   29:  53                      push   %rbx
   2a:* 0f 0b                   ud2             <-- trapping instruction
   2c:  48 85 ff                test   %rdi,%rdi
   2f:  0f 85 77 70 14 00       jne    0x1470ac
   35:  5b                      pop    %rbx
   36:  c3                      retq
   37:  66                      data16
   38:  66                      data16
   39:  2e                      cs
   3a:  0f                      .byte 0xf
   3b:  1f                      (bad)
   3c:  84 00                   test   %al,(%rax)
        ...

 Code starting with the faulting instruction
 ===========================================
    0:  0f 0b                   ud2
    2:  48 85 ff                test   %rdi,%rdi
    5:  0f 85 77 70 14 00       jne    0x147082
    b:  5b                      pop    %rbx
    c:  c3                      retq
    d:  66                      data16
    e:  66                      data16
    f:  2e                      cs
   10:  0f                      .byte 0xf
   11:  1f                      (bad)
   12:  84 00                   test   %al,(%rax)
        ...
 [749619.741779] RSP: 0018:ffffc90000d08988 EFLAGS: 00010246
 [749619.752436] RAX: ffff88814b57f5c0 RBX: ffff8881bd2540c0 RCX: ffffc90000d08a34
 [749619.766900] RDX: 0000000000000000 RSI: 00000000cda8f4af RDI: ffff8881bd2540c0
 [749619.781364] RBP: 0000000000000000 R08: ffffc90000d08a38 R09: 00000000cda8f44f
 [749619.795831] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
 [749619.810300] R13: ffffc90000d08a34 R14: 0000000000011406 R15: 0000000000000000
 [749619.824788] FS:  0000000000000000(0000) GS:ffff88903f8c0000(0000) knlGS:0000000000000000
 [749619.841168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [749619.852857] CR2: 000000000007c2e9 CR3: 0000000b82412002 CR4: 00000000007706e0
 [749619.867331] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [749619.881800] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 [749619.896260] PKRU: 55555554
 [749619.901859] Call Trace:
 [749619.906927]  <IRQ>
 [749619.911129] tcp_fastretrans_alert+0x988/0x9e0
 [749619.920222] ? kmem_cache_free+0x33c/0x3d0
 [749619.928606] tcp_ack+0x8b4/0x1360
 [749619.935425] ? __cgroup_bpf_run_filter_skb+0x185/0x440
 [749619.945910] tcp_rcv_established+0x2f3/0x660
 [749619.954639] ? sk_filter_trim_cap+0xbc/0x220
 [749619.963358] tcp_v6_do_rcv+0xbe/0x3e0
 [749619.970863] tcp_v6_rcv+0xc01/0xc90

Still no symbols (file name : line number).

 [749619.978029] ip6_protocol_deliver_rcu+0xbd/0x450
 [749619.987453] ip6_input_finish+0x3d/0x60
 [749619.995313] ip6_input+0xb5/0xc0
 [749620.001958] ip6_sublist_rcv_finish+0x37/0x50
 [749620.010851] ip6_sublist_rcv+0x1dd/0x270
 [749620.018877] ipv6_list_rcv+0x113/0x140
 [749620.026552] __netif_receive_skb_list_core+0x1a0/0x210
 [749620.037025] netif_receive_skb_list_internal+0x186/0x2a0
 [749620.047838] ? napi_gro_complete+0x6c/0xd0
 [749620.056215] gro_normal_list.part.171+0x19/0x40
 [749620.065471] napi_complete_done+0x65/0x150
 [749620.073856] bnxt_poll_p5+0x25b/0x2b0
 [749620.081369] __napi_poll+0x25/0x120
 [749620.088537] net_rx_action+0x189/0x300
 [749620.096224] __do_softirq+0xbb/0x271
 [749620.103571] irq_exit_rcu+0x97/0xa0
 [749620.110732] common_interrupt+0x7f/0xa0
 [749620.118595]  </IRQ>
 [749620.122964] asm_common_interrupt+0x1e/0x40
 [749620.131511] RIP: cpuidle_enter_state+0xc2/0x340
 [749620.141621] Code: 48 89 c5 0f 1f 44 00 00 31 ff e8 f9 8d 73 ff 45 84 ff 74 12 9c 58 f6 c4 02 0f 85 38 02 00 00 31 ff e8 b2 36 79 ff fb 45 85 f6 <0f> 88 e8 00 00 00 49 63 d6 48 2b 2c 24 48 6b ca 68 48 8d 04 52 48