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Date: Fri, 6 Nov 2020 20:15:12 +0200
From: Vlad Buslov <vladbu@...dia.com>
To: <wenxu@...oud.cn>
CC: <kuba@...nel.org>, <marcelo.leitner@...il.com>,
<dcaratti@...hat.com>, <netdev@...r.kernel.org>
Subject: Re: [PATCH v4 net-next 2/2] net/sched: act_frag: add implict packet fragment support.
On Fri 06 Nov 2020 at 11:14, wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
>
> Currently kernel tc subsystem can do conntrack in act_ct. But when several
> fragment packets go through the act_ct, function tcf_ct_handle_fragments
> will defrag the packets to a big one. But the last action will redirect
> mirred to a device which maybe lead the reassembly big packet over the mtu
> of target device.
>
> This patch add support for a xmit hook to mirred, that gets executed before
> xmiting the packet. Then, when act_ct gets loaded, it configs that hook.
> The frag xmit hook maybe reused by other modules.
>
> Signed-off-by: wenxu <wenxu@...oud.cn>
> ---
> v2: Fix the crash for act_frag module without load
> v3: modify the kconfig describe and put tcf_xmit_hook_is_enabled
> in the tcf_dev_queue_xmit, and xchg atomic for tcf_xmit_hook
> v4: using skb_protocol and fix line length exceeds 80 columns
>
Hi wenxu,
With you patches applied I get following warnings when running some of
our CT tests:
[ 550.183105] #############################
[ 550.184266] ## TEST test-ct-nat-tcp.sh ##
[ 550.185448] #############################
[ 551.195494] :test: Fedora 32 (Thirty Two)
[ 551.198730] :test: Linux c-237-12-1-009 5.10.0-rc1+
[ 551.240834] :test: NIC enp0s8f0 FW 16.28.2006 PCI 0000:00:08.0 DEVICE 0x1017 ConnectX-5
[ 551.273669] :test: Flow steering mode for enp0s8f0 is dmfs
[ 551.275449] :test: Flow steering mode for enp0s8f1 is dmfs
[ 551.394256] mlx5_core 0000:00:08.2 enp0s8f0v0: Link up
[ 551.499484] mlx5_core 0000:00:08.3 enp0s8f0v1: Link up
[ 551.507950] :test: unbind vfs of enp0s8f0
[ 552.150367] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s8f0v1: link becomes ready
[ 554.016485] :test: Change enp0s8f0 eswitch (0000:00:08.0) mode to switchdev
[ 554.061589] :test: unbind vfs of enp0s8f0
[ 554.080874] :test: bind vfs of enp0s8f0
[ 554.091882] mlx5_core 0000:00:08.2: firmware version: 16.28.2006
[ 554.358663] mlx5_core 0000:00:08.2: Rate limit: 127 rates are supported, range: 0Mbps to 97656Mbps
[ 554.379635] mlx5_core 0000:00:08.2: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0)
[ 554.491159] mlx5_core 0000:00:08.2: Supported tc offload range - chains: 1, prios: 1
[ 554.529531] mlx5_core 0000:00:08.3: firmware version: 16.28.2006
[ 554.547950] mlx5_core 0000:00:08.2 enp0s8f0v0: renamed from eth2
[ 554.804482] mlx5_core 0000:00:08.3: Rate limit: 127 rates are supported, range: 0Mbps to 97656Mbps
[ 554.829599] mlx5_core 0000:00:08.3: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0)
[ 554.937838] mlx5_core 0000:00:08.3: Supported tc offload range - chains: 1, prios: 1
[ 554.987058] mlx5_core 0000:00:08.3 enp0s8f0v1: renamed from eth2
[ 556.075683] :test: Test CT nat tcp
[ 556.269658] mlx5_core 0000:00:08.2 enp0s8f0v0: Link up
[ 556.273890] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s8f0v0: link becomes ready
[ 556.397755] mlx5_core 0000:00:08.3 enp0s8f0v1: Link up
[ 557.333042] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s8f0v1: link becomes ready
[ 558.471852] skb len=7292 headroom=78 headlen=1500 tailroom=0
mac=(64,14) net=(78,20) trans=98
shinfo(txflags=0 nr_frags=4 gso(size=1448 type=1 segs=5))
csum(0x100062 ip_summed=3 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=3 iif=14
[ 558.486166] dev name=enp0s8f0_1 feat=0x0x0002010000116c13
[ 558.487124] skb linear: 00000000: 45 00 1c 7c 94 ca 40 00 40 06 6d a1 07 07 07 01
[ 558.488470] skb linear: 00000010: 07 07 07 02 b9 42 13 89 7a 20 ea 81 fd 01 29 3e
[ 558.489824] skb linear: 00000020: 80 18 01 f6 38 7f 00 00 01 01 08 0a 44 e2 8a ea
[ 558.491180] skb linear: 00000030: 78 8a d7 32 08 00 00 00 34 35 36 37 38 39 30 31
[ 558.492537] skb linear: 00000040: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.493888] skb linear: 00000050: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.495241] skb linear: 00000060: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.496584] skb linear: 00000070: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.498042] skb linear: 00000080: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.499471] skb linear: 00000090: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.500915] skb linear: 000000a0: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.502355] skb linear: 000000b0: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.503772] skb linear: 000000c0: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.505188] skb linear: 000000d0: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.506609] skb linear: 000000e0: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.508035] skb linear: 000000f0: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.509464] skb linear: 00000100: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.510925] ------------[ cut here ]------------
[ 558.511817] mlx5_core: caps=(0x0002010000116c13, 0x0000000000000000)
[ 558.513008] WARNING: CPU: 0 PID: 0 at net/core/dev.c:3192 skb_warn_bad_offload+0x72/0xe0
[ 558.514525] Modules linked in: act_mirred act_ct act_frag nf_flow_table cls_flower act_gact sch_ingress openvswitch nsh nf_conncount mlx5_ib mlx5_core mlxfw pci_hyperv_intf ptp pps_core nfsv3 nfs_acl rpcrdma rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_iser ib_umad rdma_cm ib_ipoib iw_cm ib_cm xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd g
race nfs_ssc fscache ib_uverbs ib_core rfkill overlay iTCO_wdt iTCO_vendor_support kvm_intel kvm irqbypass virtio_net i2c_i801 crc32_pclmul net_failover ghash_clmulni_intel pcspkr lpc_ich i2c_smbus failover mfd_core sunrpc sch_fq_codel drm i2c_core ip_tables crc32c_intel serio_raw [last unloaded: mlxfw]
[ 558.527278] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-rc1+ #12
[ 558.528431] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.530434] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.531377] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.534683] RSP: 0018:ffffc90000003768 EFLAGS: 00010286
[ 558.535672] RAX: 0000000000000000 RBX: ffff888104b4a900 RCX: 000000000000083f
[ 558.536970] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
[ 558.538268] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.539569] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.540855] R13: ffffc90000003829 R14: 0000000000000000 R15: ffffc90000003828
[ 558.542162] FS: 0000000000000000(0000) GS:ffff8882f5800000(0000) knlGS:0000000000000000
[ 558.543670] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 558.544742] CR2: 00007f3985fad780 CR3: 000000016c9cc006 CR4: 0000000000770ef0
[ 558.546040] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 558.547335] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 558.548621] PKRU: 55555554
[ 558.549212] Call Trace:
[ 558.549790] <IRQ>
[ 558.550260] skb_checksum_help+0x10a/0x120
[ 558.551078] ip_do_fragment+0x300/0x500
[ 558.551844] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.552848] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.553820] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.554722] ? dst_discard_out+0x10/0x10
[ 558.555501] ? dst_dev_put+0x60/0x60
[ 558.556227] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.557180] tcf_action_exec+0x75/0x120
[ 558.557951] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.558856] __tcf_classify+0x52/0x100
[ 558.559601] tcf_classify_ingress+0x65/0x140
[ 558.560433] __netif_receive_skb_core+0x742/0xf10
[ 558.561349] ? inet_gro_complete+0xa0/0xd0
[ 558.564649] __netif_receive_skb_list_core+0xfa/0x200
[ 558.565609] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.566633] ? mlx5e_handle_rx_cqe_mpwrq_rep+0x158/0x200 [mlx5_core]
[ 558.567798] napi_complete_done+0x6f/0x180
[ 558.568633] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.569591] ? mlx5e_completion_event+0x3c/0x40 [mlx5_core]
[ 558.570643] net_rx_action+0x130/0x3a0
[ 558.571406] ? atomic_notifier_call_chain+0x54/0x70
[ 558.572340] __do_softirq+0xc5/0x283
[ 558.573081] asm_call_irq_on_stack+0xf/0x20
[ 558.573878] </IRQ>
[ 558.574353] do_softirq_own_stack+0x37/0x40
[ 558.575157] irq_exit_rcu+0x9c/0xd0
[ 558.575851] common_interrupt+0x74/0x130
[ 558.576607] asm_common_interrupt+0x1e/0x40
[ 558.577418] RIP: 0010:native_safe_halt+0xe/0x10
[ 558.578277] Code: 02 20 48 8b 00 a8 08 75 c4 e9 7b ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d cc 01 55 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d bc 01 55 00 f4 c3 cc cc 0f 1f 44 00
[ 558.581470] RSP: 0018:ffffffff82403eb8 EFLAGS: 00000202
[ 558.583946] RAX: ffff8882f582c900 RBX: 0000000000000000 RCX: ffff8882f582c900
[ 558.585147] RDX: 00000000000ca6ea RSI: 7fffff7dff2b52f5 RDI: 0000000000000086
[ 558.586360] RBP: ffffffff82413940 R08: 000000cd42e4dffb R09: 00000082704a9c8a
[ 558.587556] R10: 00000000000302ee R11: 0000000000000000 R12: 0000000000000000
[ 558.588756] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 558.590118] default_idle+0xa/0x10
[ 558.590769] default_idle_call+0x38/0xb0
[ 558.591494] do_idle+0x1f7/0x270
[ 558.592126] cpu_startup_entry+0x19/0x20
[ 558.592857] start_kernel+0x511/0x533
[ 558.603117] secondary_startup_64_no_verify+0xa6/0xab
[ 558.604021] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-rc1+ #12
[ 558.605119] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.606961] Call Trace:
[ 558.607462] <IRQ>
[ 558.607903] dump_stack+0x6b/0x83
[ 558.608529] __warn.cold+0x24/0x75
[ 558.609177] ? skb_warn_bad_offload+0x72/0xe0
[ 558.609959] report_bug+0x9a/0xc0
[ 558.610581] handle_bug+0x35/0x80
[ 558.611212] exc_invalid_op+0x14/0x70
[ 558.611893] asm_exc_invalid_op+0x12/0x20
[ 558.612618] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.613486] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.616519] RSP: 0018:ffffc90000003768 EFLAGS: 00010286
[ 558.617431] RAX: 0000000000000000 RBX: ffff888104b4a900 RCX: 000000000000083f
[ 558.618619] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
[ 558.619857] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.621100] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.622361] R13: ffffc90000003829 R14: 0000000000000000 R15: ffffc90000003828
[ 558.623617] ? skb_warn_bad_offload+0x72/0xe0
[ 558.624439] skb_checksum_help+0x10a/0x120
[ 558.625222] ip_do_fragment+0x300/0x500
[ 558.625958] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.626928] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.627866] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.628725] ? dst_discard_out+0x10/0x10
[ 558.629486] ? dst_dev_put+0x60/0x60
[ 558.630191] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.631128] tcf_action_exec+0x75/0x120
[ 558.631884] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.632772] __tcf_classify+0x52/0x100
[ 558.633516] tcf_classify_ingress+0x65/0x140
[ 558.634344] __netif_receive_skb_core+0x742/0xf10
[ 558.635235] ? inet_gro_complete+0xa0/0xd0
[ 558.636019] __netif_receive_skb_list_core+0xfa/0x200
[ 558.636965] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.637969] ? mlx5e_handle_rx_cqe_mpwrq_rep+0x158/0x200 [mlx5_core]
[ 558.639129] napi_complete_done+0x6f/0x180
[ 558.639934] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.640877] ? mlx5e_completion_event+0x3c/0x40 [mlx5_core]
[ 558.641900] net_rx_action+0x130/0x3a0
[ 558.642630] ? atomic_notifier_call_chain+0x54/0x70
[ 558.643543] __do_softirq+0xc5/0x283
[ 558.644261] asm_call_irq_on_stack+0xf/0x20
[ 558.645061] </IRQ>
[ 558.645541] do_softirq_own_stack+0x37/0x40
[ 558.646357] irq_exit_rcu+0x9c/0xd0
[ 558.647053] common_interrupt+0x74/0x130
[ 558.647816] asm_common_interrupt+0x1e/0x40
[ 558.648627] RIP: 0010:native_safe_halt+0xe/0x10
[ 558.649498] Code: 02 20 48 8b 00 a8 08 75 c4 e9 7b ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d cc 01 55 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d bc 01 55 00 f4 c3 cc cc 0f 1f 44 00
[ 558.652723] RSP: 0018:ffffffff82403eb8 EFLAGS: 00000202
[ 558.653764] RAX: ffff8882f582c900 RBX: 0000000000000000 RCX: ffff8882f582c900
[ 558.655116] RDX: 00000000000ca6ea RSI: 7fffff7dff2b52f5 RDI: 0000000000000086
[ 558.656387] RBP: ffffffff82413940 R08: 000000cd42e4dffb R09: 00000082704a9c8a
[ 558.657670] R10: 00000000000302ee R11: 0000000000000000 R12: 0000000000000000
[ 558.658939] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 558.660205] default_idle+0xa/0x10
[ 558.660878] default_idle_call+0x38/0xb0
[ 558.661643] do_idle+0x1f7/0x270
[ 558.662298] cpu_startup_entry+0x19/0x20
[ 558.663066] start_kernel+0x511/0x533
[ 558.663787] secondary_startup_64_no_verify+0xa6/0xab
[ 558.664746] ---[ end trace 1643bf725be8b62e ]---
[ 558.665713] skb len=7292 headroom=78 headlen=1500 tailroom=0
mac=(64,14) net=(78,20) trans=98
shinfo(txflags=0 nr_frags=4 gso(size=1448 type=1 segs=5))
csum(0x100062 ip_summed=3 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=3 iif=14
[ 558.670604] dev name=enp0s8f0_1 feat=0x0x0002010000116c13
[ 558.671613] skb linear: 00000000: 45 00 1c 7c 94 cf 40 00 40 06 6d 9c 07 07 07 01
[ 558.673039] skb linear: 00000010: 07 07 07 02 b9 42 13 89 7a 21 06 c9 fd 01 29 3e
[ 558.674473] skb linear: 00000020: 80 18 01 f6 38 7f 00 00 01 01 08 0a 44 e2 8a ea
[ 558.675894] skb linear: 00000030: 78 8a d7 32 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.677323] skb linear: 00000040: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.678755] skb linear: 00000050: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.681051] skb linear: 00000060: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.682487] skb linear: 00000070: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.683940] skb linear: 00000080: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.685390] skb linear: 00000090: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.686844] skb linear: 000000a0: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.688298] skb linear: 000000b0: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.689751] skb linear: 000000c0: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.691204] skb linear: 000000d0: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.692657] skb linear: 000000e0: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.694101] skb linear: 000000f0: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.695523] skb linear: 00000100: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.696959] ------------[ cut here ]------------
[ 558.697849] mlx5_core: caps=(0x0002010000116c13, 0x0000000000000000)
[ 558.699029] WARNING: CPU: 0 PID: 9 at net/core/dev.c:3192 skb_warn_bad_offload+0x72/0xe0
[ 558.700529] Modules linked in: act_mirred act_ct act_frag nf_flow_table cls_flower act_gact sch_ingress openvswitch nsh nf_conncount mlx5_ib mlx5_core mlxfw pci_hyperv_intf ptp pps_core nfsv3 nfs_acl rpcrdma rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_iser ib_umad rdma_cm ib_ipoib iw_cm ib_cm xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd g
race nfs_ssc fscache ib_uverbs ib_core rfkill overlay iTCO_wdt iTCO_vendor_support kvm_intel kvm irqbypass virtio_net i2c_i801 crc32_pclmul net_failover ghash_clmulni_intel pcspkr lpc_ich i2c_smbus failover mfd_core sunrpc sch_fq_codel drm i2c_core ip_tables crc32c_intel serio_raw [last unloaded: mlxfw]
[ 558.713098] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G W 5.10.0-rc1+ #12
[ 558.714596] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.716595] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.717532] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.720777] RSP: 0018:ffffc90000057658 EFLAGS: 00010282
[ 558.721758] RAX: 0000000000000000 RBX: ffff888104b4b700 RCX: 0000000000000000
[ 558.723049] RDX: ffff8882f5828ba0 RSI: ffff8882f5818b00 RDI: ffff8882f5818b00
[ 558.724334] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.725663] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.726966] R13: ffffc90000057719 R14: 0000000000000000 R15: ffffc90000057718
[ 558.728245] FS: 0000000000000000(0000) GS:ffff8882f5800000(0000) knlGS:0000000000000000
[ 558.729740] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 558.730804] CR2: 00007f3985fad780 CR3: 000000016c9cc006 CR4: 0000000000770ef0
[ 558.732088] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 558.733373] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 558.734662] PKRU: 55555554
[ 558.735242] Call Trace:
[ 558.735776] skb_checksum_help+0x10a/0x120
[ 558.736580] ip_do_fragment+0x300/0x500
[ 558.737342] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.738344] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.739308] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.740197] ? dst_discard_out+0x10/0x10
[ 558.740981] ? dst_dev_put+0x60/0x60
[ 558.741693] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.742637] tcf_action_exec+0x75/0x120
[ 558.743402] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.744308] __tcf_classify+0x52/0x100
[ 558.745054] tcf_classify_ingress+0x65/0x140
[ 558.745882] __netif_receive_skb_core+0x742/0xf10
[ 558.746776] ? inet_gro_receive+0x225/0x2c0
[ 558.747589] __netif_receive_skb_list_core+0xfa/0x200
[ 558.748542] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.749533] ? napi_gro_flush+0x9c/0xf0
[ 558.750299] napi_complete_done+0x6f/0x180
[ 558.751118] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.752059] net_rx_action+0x130/0x3a0
[ 558.752806] __do_softirq+0xc5/0x283
[ 558.753524] run_ksoftirqd+0x26/0x40
[ 558.754249] smpboot_thread_fn+0xb8/0x150
[ 558.755035] ? smpboot_register_percpu_thread+0xe0/0xe0
[ 558.756019] kthread+0x118/0x130
[ 558.756673] ? kthread_create_worker_on_cpu+0x70/0x70
[ 558.757627] ret_from_fork+0x1f/0x30
[ 558.758346] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G W 5.10.0-rc1+ #12
[ 558.759819] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.761788] Call Trace:
[ 558.762318] dump_stack+0x6b/0x83
[ 558.772522] __warn.cold+0x24/0x75
[ 558.773164] ? skb_warn_bad_offload+0x72/0xe0
[ 558.773955] report_bug+0x9a/0xc0
[ 558.774581] handle_bug+0x35/0x80
[ 558.775224] exc_invalid_op+0x14/0x70
[ 558.775913] asm_exc_invalid_op+0x12/0x20
[ 558.776641] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.777512] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.780535] RSP: 0018:ffffc90000057658 EFLAGS: 00010282
[ 558.781447] RAX: 0000000000000000 RBX: ffff888104b4b700 RCX: 0000000000000000
[ 558.782633] RDX: ffff8882f5828ba0 RSI: ffff8882f5818b00 RDI: ffff8882f5818b00
[ 558.783816] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.785102] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.786382] R13: ffffc90000057719 R14: 0000000000000000 R15: ffffc90000057718
[ 558.787665] ? skb_warn_bad_offload+0x72/0xe0
[ 558.788500] skb_checksum_help+0x10a/0x120
[ 558.789296] ip_do_fragment+0x300/0x500
[ 558.790050] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.791029] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.791989] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.792946] ? dst_discard_out+0x10/0x10
[ 558.793718] ? dst_dev_put+0x60/0x60
[ 558.794431] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.795360] tcf_action_exec+0x75/0x120
[ 558.796111] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.797001] __tcf_classify+0x52/0x100
[ 558.797736] tcf_classify_ingress+0x65/0x140
[ 558.798546] __netif_receive_skb_core+0x742/0xf10
[ 558.799429] ? inet_gro_receive+0x225/0x2c0
[ 558.800236] __netif_receive_skb_list_core+0xfa/0x200
[ 558.801169] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.802149] ? napi_gro_flush+0x9c/0xf0
[ 558.802900] napi_complete_done+0x6f/0x180
[ 558.803701] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.804634] net_rx_action+0x130/0x3a0
[ 558.805370] __do_softirq+0xc5/0x283
[ 558.806087] run_ksoftirqd+0x26/0x40
[ 558.806799] smpboot_thread_fn+0xb8/0x150
[ 558.807574] ? smpboot_register_percpu_thread+0xe0/0xe0
[ 558.808540] kthread+0x118/0x130
[ 558.809192] ? kthread_create_worker_on_cpu+0x70/0x70
[ 558.810141] ret_from_fork+0x1f/0x30
[ 558.810858] ---[ end trace 1643bf725be8b62f ]---
[ 558.812075] skb len=2948 headroom=78 headlen=1500 tailroom=0
mac=(64,14) net=(78,20) trans=98
shinfo(txflags=0 nr_frags=1 gso(size=1448 type=1 segs=2))
csum(0x100062 ip_summed=3 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=3 iif=14
[ 558.816979] dev name=enp0s8f0_1 feat=0x0x0002010000116c13
[ 558.817993] skb linear: 00000000: 45 00 0b 84 94 d7 40 00 40 06 7e 8c 07 07 07 01
[ 558.819425] skb linear: 00000010: 07 07 07 02 b9 42 13 89 7a 20 f5 d1 fd 01 29 3e
[ 558.820852] skb linear: 00000020: 80 18 01 f6 27 87 00 00 01 01 08 0a 44 e2 8c 3e
[ 558.822292] skb linear: 00000030: 78 8a d8 86 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.823720] skb linear: 00000040: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.825158] skb linear: 00000050: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.829260] skb linear: 00000060: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.833164] skb linear: 00000070: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.837120] skb linear: 00000080: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.841051] skb linear: 00000090: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.842835] skb linear: 000000a0: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.844263] skb linear: 000000b0: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.845689] skb linear: 000000c0: 36 37 38 39 30 31 32 33 34 35 36 37 38 39 30 31
[ 558.847101] skb linear: 000000d0: 32 33 34 35 36 37 38 39 30 31 32 33 34 35 36 37
[ 558.848533] skb linear: 000000e0: 38 39 30 31 32 33 34 35 36 37 38 39 30 31 32 33
[ 558.849964] skb linear: 000000f0: 34 35 36 37 38 39 30 31 32 33 34 35 36 37 38 39
[ 558.851381] skb linear: 00000100: 30 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35
[ 558.852809] ------------[ cut here ]------------
[ 558.853686] mlx5_core: caps=(0x0002010000116c13, 0x0000000000000000)
[ 558.854865] WARNING: CPU: 0 PID: 0 at net/core/dev.c:3192 skb_warn_bad_offload+0x72/0xe0
[ 558.856371] Modules linked in: act_mirred act_ct act_frag nf_flow_table cls_flower act_gact sch_ingress openvswitch nsh nf_conncount mlx5_ib mlx5_core mlxfw pci_hyperv_intf ptp pps_core nfsv3 nfs_acl rpcrdma rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_iser ib_umad rdma_cm ib_ipoib iw_cm ib_cm xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd g
race nfs_ssc fscache ib_uverbs ib_core rfkill overlay iTCO_wdt iTCO_vendor_support kvm_intel kvm irqbypass virtio_net i2c_i801 crc32_pclmul net_failover ghash_clmulni_intel pcspkr lpc_ich i2c_smbus failover mfd_core sunrpc sch_fq_codel drm i2c_core ip_tables crc32c_intel serio_raw [last unloaded: mlxfw]
[ 558.868905] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 5.10.0-rc1+ #12
[ 558.870347] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.872329] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.873268] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.876571] RSP: 0018:ffffc90000003768 EFLAGS: 00010286
[ 558.877569] RAX: 0000000000000000 RBX: ffff888104b4b700 RCX: 000000000000083f
[ 558.878873] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
[ 558.880178] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.881481] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.882796] R13: ffffc90000003829 R14: 0000000000000000 R15: ffffc90000003828
[ 558.884104] FS: 0000000000000000(0000) GS:ffff8882f5800000(0000) knlGS:0000000000000000
[ 558.885632] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 558.886687] CR2: 00007f3985fad780 CR3: 000000016c9cc006 CR4: 0000000000770ef0
[ 558.887961] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 558.889245] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 558.890531] PKRU: 55555554
[ 558.891111] Call Trace:
[ 558.891645] <IRQ>
[ 558.892118] skb_checksum_help+0x10a/0x120
[ 558.892925] ip_do_fragment+0x300/0x500
[ 558.893684] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.894676] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.895650] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.896537] ? dst_discard_out+0x10/0x10
[ 558.897309] ? dst_dev_put+0x60/0x60
[ 558.898036] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.898973] tcf_action_exec+0x75/0x120
[ 558.899736] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.901587] __tcf_classify+0x52/0x100
[ 558.902331] tcf_classify_ingress+0x65/0x140
[ 558.903156] __netif_receive_skb_core+0x742/0xf10
[ 558.904050] ? inet_gro_complete+0xa0/0xd0
[ 558.904843] __netif_receive_skb_list_core+0xfa/0x200
[ 558.905799] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.906798] ? mlx5e_handle_rx_cqe_mpwrq_rep+0x158/0x200 [mlx5_core]
[ 558.907951] napi_complete_done+0x6f/0x180
[ 558.908759] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.909713] ? mlx5e_completion_event+0x3c/0x40 [mlx5_core]
[ 558.910753] net_rx_action+0x130/0x3a0
[ 558.911502] ? atomic_notifier_call_chain+0x54/0x70
[ 558.912437] __do_softirq+0xc5/0x283
[ 558.913161] asm_call_irq_on_stack+0xf/0x20
[ 558.913988] </IRQ>
[ 558.914472] do_softirq_own_stack+0x37/0x40
[ 558.915296] irq_exit_rcu+0x9c/0xd0
[ 558.916005] common_interrupt+0x74/0x130
[ 558.916781] asm_common_interrupt+0x1e/0x40
[ 558.917605] RIP: 0010:native_safe_halt+0xe/0x10
[ 558.918476] Code: 02 20 48 8b 00 a8 08 75 c4 e9 7b ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d cc 01 55 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d bc 01 55 00 f4 c3 cc cc 0f 1f 44 00
[ 558.921722] RSP: 0018:ffffffff82403eb8 EFLAGS: 00000202
[ 558.922708] RAX: ffff8882f582c900 RBX: 0000000000000000 RCX: ffff8882f582c900
[ 558.923989] RDX: 00000000000ca72a RSI: 7fffff7dead813b5 RDI: 0000000000000086
[ 558.925272] RBP: ffffffff82413940 R08: 000000cd42e4dffb R09: 00000082704a9c8a
[ 558.926561] R10: 00000000000302ee R11: 0000000000000000 R12: 0000000000000000
[ 558.927836] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 558.929107] default_idle+0xa/0x10
[ 558.929812] default_idle_call+0x38/0xb0
[ 558.930581] do_idle+0x1f7/0x270
[ 558.931244] cpu_startup_entry+0x19/0x20
[ 558.932011] start_kernel+0x511/0x533
[ 558.932742] secondary_startup_64_no_verify+0xa6/0xab
[ 558.933708] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 5.10.0-rc1+ #12
[ 558.935150] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 558.937107] Call Trace:
[ 558.937642] <IRQ>
[ 558.938100] dump_stack+0x6b/0x83
[ 558.938764] __warn.cold+0x24/0x75
[ 558.939513] ? skb_warn_bad_offload+0x72/0xe0
[ 558.940342] report_bug+0x9a/0xc0
[ 558.940996] handle_bug+0x35/0x80
[ 558.941680] exc_invalid_op+0x14/0x70
[ 558.951946] asm_exc_invalid_op+0x12/0x20
[ 558.952699] RIP: 0010:skb_warn_bad_offload+0x72/0xe0
[ 558.953571] Code: 8d 95 c8 00 00 00 48 8d 88 e8 01 00 00 48 85 c0 48 c7 c0 18 3f 12 82 48 0f 44 c8 4c 89 e6 48 c7 c7 7f 0e 31 82 e8 b4 65 1a 00 <0f> 0b 5b 5d 41 5c c3 80 7d 00 00 49 c7 c4 b3 81 28 82 74 ac be 25
[ 558.956566] RSP: 0018:ffffc90000003768 EFLAGS: 00010286
[ 558.957474] RAX: 0000000000000000 RBX: ffff888104b4b700 RCX: 000000000000083f
[ 558.958653] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
[ 558.959836] RBP: ffff888132900000 R08: ffffffff82621c28 R09: 0000000000013ffb
[ 558.961013] R10: 00000000ffffc000 R11: 3fffffffffffffff R12: ffffffffa0a03723
[ 558.962194] R13: ffffc90000003829 R14: 0000000000000000 R15: ffffc90000003828
[ 558.963375] ? skb_warn_bad_offload+0x72/0xe0
[ 558.964214] skb_checksum_help+0x10a/0x120
[ 558.965001] ip_do_fragment+0x300/0x500
[ 558.965747] ? tcf_frag_dst_get_mtu+0x10/0x10 [act_frag]
[ 558.966728] ? fl_mask_lookup+0x164/0x4b0 [cls_flower]
[ 558.967662] tcf_fragment+0x1a8/0x410 [act_frag]
[ 558.968524] ? dst_discard_out+0x10/0x10
[ 558.969279] ? dst_dev_put+0x60/0x60
[ 558.969986] tcf_mirred_act+0x41f/0x457 [act_mirred]
[ 558.970903] tcf_action_exec+0x75/0x120
[ 558.971646] fl_classify+0x1c6/0x1d0 [cls_flower]
[ 558.972534] __tcf_classify+0x52/0x100
[ 558.973269] tcf_classify_ingress+0x65/0x140
[ 558.974081] __netif_receive_skb_core+0x742/0xf10
[ 558.974958] ? inet_gro_complete+0xa0/0xd0
[ 558.975738] __netif_receive_skb_list_core+0xfa/0x200
[ 558.976680] netif_receive_skb_list_internal+0x19f/0x2c0
[ 558.977668] ? mlx5e_handle_rx_cqe_mpwrq_rep+0x158/0x200 [mlx5_core]
[ 558.978809] napi_complete_done+0x6f/0x180
[ 558.979594] mlx5e_napi_poll+0x13b/0x600 [mlx5_core]
[ 558.980534] ? mlx5e_completion_event+0x3c/0x40 [mlx5_core]
[ 558.981557] net_rx_action+0x130/0x3a0
[ 558.982294] ? atomic_notifier_call_chain+0x54/0x70
[ 558.983202] __do_softirq+0xc5/0x283
[ 558.983905] asm_call_irq_on_stack+0xf/0x20
[ 558.984699] </IRQ>
[ 558.985169] do_softirq_own_stack+0x37/0x40
[ 558.985967] irq_exit_rcu+0x9c/0xd0
[ 558.986661] common_interrupt+0x74/0x130
[ 558.987429] asm_common_interrupt+0x1e/0x40
[ 558.988231] RIP: 0010:native_safe_halt+0xe/0x10
[ 558.989090] Code: 02 20 48 8b 00 a8 08 75 c4 e9 7b ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d cc 01 55 00 fb f4 <c3> 90 e9 07 00 00 00 0f 00 2d bc 01 55 00 f4 c3 cc cc 0f 1f 44 00
[ 558.992327] RSP: 0018:ffffffff82403eb8 EFLAGS: 00000202
[ 558.993284] RAX: ffff8882f582c900 RBX: 0000000000000000 RCX: ffff8882f582c900
[ 558.994544] RDX: 00000000000ca72a RSI: 7fffff7dead813b5 RDI: 0000000000000086
[ 558.995808] RBP: ffffffff82413940 R08: 000000cd42e4dffb R09: 00000082704a9c8a
[ 558.997068] R10: 00000000000302ee R11: 0000000000000000 R12: 0000000000000000
[ 558.998337] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 558.999606] default_idle+0xa/0x10
[ 559.000294] default_idle_call+0x38/0xb0
[ 559.001054] do_idle+0x1f7/0x270
[ 559.001701] cpu_startup_entry+0x19/0x20
[ 559.002462] start_kernel+0x511/0x533
[ 559.003179] secondary_startup_64_no_verify+0xa6/0xab
[ 559.004126] ---[ end trace 1643bf725be8b630 ]---
[ 559.005066] skb len=2948 headroom=78 headlen=1500 tailroom=0
mac=(64,14) net=(78,20) trans=98
shinfo(txflags=0 nr_frags=1 gso(size=1448 type=1 segs=2))
csum(0x100062 ip_summed=3 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=3 iif=14
[ 559.009931] dev name=enp0s8f0_1 feat=0x0x0002010000116c13
[ 559.010930] skb linear: 00000000: 45 00 0b 84 94 d9 40 00 40 06 7e 8a 07 07 07 01
[ 559.012357] skb linear: 00000010: 07 07 07 02 b9 42 13 89 7a 21 01 21 fd 01 29 3e
[ 559.013777] skb linear: 00000020: 80 10 01 f6 27 87 00 00 01 01 08 0a 44 e2 8c 3e
[ 559.015206] skb linear: 00000030: 78 8a d8 86 32 33 34 35 36 37 38 39 30 31 32 33
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