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Fri, 12 Jun 2020 14:25:48 +0000 References: <1591956510-15051-1-git-send-email-wenxu@ucloud.cn> <1591956510-15051-2-git-send-email-wenxu@ucloud.cn> User-agent: mu4e 1.2.0; emacs 26.2.90 From: Vlad Buslov To: wenxu@ucloud.cn Cc: netdev@vger.kernel.org, davem@davemloft.net, pablo@netfilter.org, vladbu@mellanox.com Subject: Re: [PATCH net 2/2] flow_offload: fix the list_del corruption in the driver list In-reply-to: <1591956510-15051-2-git-send-email-wenxu@ucloud.cn> Date: Fri, 12 Jun 2020 17:25:46 +0300 Message-ID: Content-Type: text/plain X-ClientProxiedBy: GV0P278CA0003.CHEP278.PROD.OUTLOOK.COM (2603:10a6:710:26::13) To AM7PR05MB6995.eurprd05.prod.outlook.com (2603:10a6:20b:1ad::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from reg-r-vrt-018-180.mellanox.com (37.142.13.130) by GV0P278CA0003.CHEP278.PROD.OUTLOOK.COM (2603:10a6:710:26::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.19 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: MUsmOvwv9thVVkW0N0pu1NDQCLpAivtRZug9DrJvGr8aegyWXor5g+Xhr+2zV4BuF4Go+g+b55C3AOHBukSqMiW6ImV/Kgp5VEQf4rYX6Syo+msi58uUR+8yaZEP/2ZNGfqe8R2JXEaM0zONVbSkA2TkPA5B95+KzU8HQrW7VKszEATmkQ1rxyyKWBw1wEjRp6w+YRIkq41iofu9+Bs1eT7aqfOhHkHcrepnzx/gseOWz+Tu/liDF7NjVyUMLCMHgBvz7Z8uuLYznBoyBfkEfemJDVwuGA0JL591RpNMibVsBoQeL1nSZUvaIPtvrG6G3hxmMiZ5Yyp7f5GF6TqnjkLJXk+SIEryix1fHZkwkaL2YMQ6+p9E1Q2v4iOdTypLz4IFyC3KkAlrPWURj2AAOmJJWeCh2nAKALa9XnQxsLMsTQLfKlRqFgKRlSzBih1zrfUlxKhtWyFjq69+g0cq7z+iWiPwavAkiZtAcQveUCY= X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5532a1b8-7a75-44a2-f3ab-08d80edc808c X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jun 2020 14:25:48.6484 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: so4oxHU6Fim7walVPzYGnW5Y8cgmYcFWRfqrYSVwOnkYOpxvNtpIfUAdnJpZ47LSWUHdH3E6elEA3Xa6CzFINw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR05MB6882 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri 12 Jun 2020 at 13:08, wenxu@ucloud.cn wrote: > From: wenxu > > When a indr device add in offload success. After the representor > go away. All the flow_block_cb cleanup but miss del form driver > list. > > Fixes: 0fdcf78d5973 ("net: use flow_indr_dev_setup_offload()") > Signed-off-by: wenxu > --- Hi wenxu, I applied this series on top of your other series of fixes that starts with "[PATCH net v3 1/2] flow_offload: fix incorrect cleanup for indirect flow_blocks" and get following list manipulation warnings in most of our tests: [ 538.776527] ###################################### [ 538.776848] ## TEST test-devlink-inline-mode.sh ## [ 538.777158] ###################################### [ 539.548708] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f1: link becomes ready [ 539.784948] :test: Fedora 30 (Thirty) [ 539.787047] :test: Linux reg-r-vrt-018-180 5.7.0+ [ 539.827011] :test: NIC ens1f0 FW 16.27.6008 PCI 0000:81:00.0 DEVICE 0x1019 ConnectX-5 Ex [ 539.832092] ------------[ cut here ]------------ [ 539.832120] list_del corruption, ffff968f138f8280->next is LIST_POISON1 (dead000000000100) [ 539.832179] WARNING: CPU: 2 PID: 2712 at lib/list_debug.c:45 __list_del_entry_valid+0x4b/0x90 [ 539.832216] Modules linked in: sch_ingress nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mlxfw act_ct nf_flow_table kvm nf_nat nf_conntrack igb irqbypass nf_defrag_ipv6 libcrc32c nf_defrag_ipv4 crct10dif_pclmul ptp crc32_pclmul ses crc32c_intel pps_core ghash_clmulni_intel iTCO_wdt mei_me joydev ipmi_ssif iTCO_vendor_support intel_cstate mei ipmi_si ioatdma pcsp kr wmi enclosure lpc_ich intel_uncore dca i2c_i801 acpi_power_meter ipmi_devintf ipmi_msghandler acpi_pad ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas [ 539.832506] CPU: 2 PID: 2712 Comm: tc Not tainted 5.7.0+ #1153 [ 539.832532] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 539.832569] RIP: 0010:__list_del_entry_valid+0x4b/0x90 [ 539.832594] Code: 39 c0 74 2b 49 8b 30 48 39 fe 75 3a 48 8b 52 08 48 39 f2 75 48 b8 01 00 00 00 c3 48 89 fe 48 c7 c7 50 b2 19 ab e8 47 b3 bd ff <0f> 0b 31 c0 c3 48 89 fe 4c 89 c2 48 c7 c7 88 b2 19 ab e8 30 b3 bd [ 539.832669] RSP: 0018:ffffb132041e3878 EFLAGS: 00010286 [ 539.833836] RAX: 0000000000000000 RBX: ffffb132041e38d8 RCX: 0000000000000027 [ 539.834960] RDX: 0000000000000027 RSI: 0000000000000092 RDI: ffff968f2fa99d88 [ 539.836082] RBP: ffff968f10722000 R08: ffff968f2fa99d80 R09: 00000000000005b3 [ 539.837213] R10: 0000000000000001 R11: ffffffffaaedecc0 R12: dead000000000122 [ 539.838317] R13: dead000000000100 R14: ffff968f138f8280 R15: ffff968f138f8290 [ 539.839397] FS: 00007f6d641b3480(0000) GS:ffff968f2fa80000(0000) knlGS:0000000000000000 [ 539.840481] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 539.841565] CR2: 0000000000480360 CR3: 000000044fbfe003 CR4: 00000000001606e0 [ 539.842671] Call Trace: [ 539.843787] tcf_block_unbind+0xad/0x110 [ 539.844891] tcf_block_offload_cmd.isra.0+0x105/0x280 [ 539.845995] tcf_block_offload_unbind.isra.0+0x36/0x60 [ 539.847087] __tcf_block_put+0x84/0x150 [ 539.848178] ingress_destroy+0x1b/0x20 [sch_ingress] [ 539.849266] qdisc_destroy+0x3e/0xc0 [ 539.850346] qdisc_graft+0x415/0x510 [ 539.851426] tc_get_qdisc+0x1c9/0x300 [ 539.852508] rtnetlink_rcv_msg+0x2b0/0x360 [ 539.853599] ? copyout+0x22/0x30 [ 539.854680] ? _copy_to_iter+0xa1/0x410 [ 539.855742] ? _cond_resched+0x15/0x30 [ 539.856784] ? rtnl_calcit.isra.0+0x110/0x110 [ 539.857818] netlink_rcv_skb+0x49/0x110 [ 539.858842] netlink_unicast+0x191/0x230 [ 539.859857] netlink_sendmsg+0x243/0x480 [ 539.860870] sock_sendmsg+0x5e/0x60 [ 539.861875] ____sys_sendmsg+0x1f3/0x260 [ 539.862881] ? copy_msghdr_from_user+0x5c/0x90 [ 539.863889] ? ____sys_recvmsg+0xa7/0x180 [ 539.864887] ___sys_sendmsg+0x81/0xc0 [ 539.865875] ? ___sys_recvmsg+0x8d/0xc0 [ 539.866860] ? handle_mm_fault+0x117b/0x1e00 [ 539.867837] __sys_sendmsg+0x59/0xa0 [ 539.868813] do_syscall_64+0x5b/0x1d0 [ 539.869754] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 539.870686] RIP: 0033:0x7f6d643797b8 [ 539.871591] Code: 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 65 8f 0c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 89 54 [ 539.873428] RSP: 002b:00007ffdc0eb23e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 539.874325] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6d643797b8 [ 539.875202] RDX: 0000000000000000 RSI: 00007ffdc0eb2460 RDI: 0000000000000003 [ 539.876057] RBP: 000000005ee37948 R08: 0000000000000001 R09: 0000000000d5c9c0 [ 539.876889] R10: 0000000000404fa8 R11: 0000000000000246 R12: 0000000000000001 [ 539.877704] R13: 00007ffdc0ec26b0 R14: 0000000000000000 R15: 00000000004866a0 [ 539.878527] ---[ end trace 046f2dd1361dc9d6 ]--- [ 539.901351] ------------[ cut here ]------------ [ 539.901946] list_del corruption, ffff968f0467ef00->next is LIST_POISON1 (dead000000000100) [ 539.902535] WARNING: CPU: 13 PID: 2717 at lib/list_debug.c:45 __list_del_entry_valid+0x4b/0x90 [ 539.903119] Modules linked in: sch_ingress nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mlxfw act_ct nf_flow_table kvm nf_nat nf_conntrack igb irqbypass nf_defrag_ipv6 libcrc32c nf_defrag_ipv4 crct10dif_pclmul ptp crc32_pclmul ses crc32c_intel pps_core ghash_clmulni_intel iTCO_wdt mei_me joydev ipmi_ssif iTCO_vendor_support intel_cstate mei ipmi_si ioatdma pcsp kr wmi enclosure lpc_ich intel_uncore dca i2c_i801 acpi_power_meter ipmi_devintf ipmi_msghandler acpi_pad ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas [ 539.907012] CPU: 13 PID: 2717 Comm: tc Tainted: G W 5.7.0+ #1153 [ 539.907695] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 539.908382] RIP: 0010:__list_del_entry_valid+0x4b/0x90 [ 539.909068] Code: 39 c0 74 2b 49 8b 30 48 39 fe 75 3a 48 8b 52 08 48 39 f2 75 48 b8 01 00 00 00 c3 48 89 fe 48 c7 c7 50 b2 19 ab e8 47 b3 bd ff <0f> 0b 31 c0 c3 48 89 fe 4c 89 c2 48 c7 c7 88 b2 19 ab e8 30 b3 bd [ 539.910524] RSP: 0018:ffffb1320421b878 EFLAGS: 00010286 [ 539.911261] RAX: 0000000000000000 RBX: ffffb1320421b8d8 RCX: 0000000000000027 [ 539.912010] RDX: 0000000000000027 RSI: 0000000000000092 RDI: ffff968f2fbd9d88 [ 539.912759] RBP: ffff968f17325000 R08: ffff968f2fbd9d80 R09: 00000000000005e8 [ 539.913533] R10: 0000000000000001 R11: ffffffffaaedecc0 R12: dead000000000122 [ 539.914296] R13: dead000000000100 R14: ffff968f0467ef00 R15: ffff968f0467ef10 [ 539.915063] FS: 00007ff65a1d6480(0000) GS:ffff968f2fbc0000(0000) knlGS:0000000000000000 [ 539.915841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 539.916625] CR2: 0000000000480360 CR3: 000000044f852005 CR4: 00000000001606e0 [ 539.917422] Call Trace: [ 539.918221] tcf_block_unbind+0xad/0x110 [ 539.919023] tcf_block_offload_cmd.isra.0+0x105/0x280 [ 539.919828] tcf_block_offload_unbind.isra.0+0x36/0x60 [ 539.920635] __tcf_block_put+0x84/0x150 [ 539.921446] ingress_destroy+0x1b/0x20 [sch_ingress] [ 539.922259] qdisc_destroy+0x3e/0xc0 [ 539.923068] qdisc_graft+0x415/0x510 [ 539.923891] tc_get_qdisc+0x1c9/0x300 [ 539.924699] rtnetlink_rcv_msg+0x2b0/0x360 [ 539.925509] ? copyout+0x22/0x30 [ 539.926314] ? _copy_to_iter+0xa1/0x410 [ 539.927119] ? _cond_resched+0x15/0x30 [ 539.927923] ? rtnl_calcit.isra.0+0x110/0x110 [ 539.928726] netlink_rcv_skb+0x49/0x110 [ 539.929524] netlink_unicast+0x191/0x230 [ 539.930301] netlink_sendmsg+0x243/0x480 [ 539.931058] sock_sendmsg+0x5e/0x60 [ 539.931801] ____sys_sendmsg+0x1f3/0x260 [ 539.932537] ? copy_msghdr_from_user+0x5c/0x90 [ 539.933283] ? ____sys_recvmsg+0xa7/0x180 [ 539.934013] ___sys_sendmsg+0x81/0xc0 [ 539.934743] ? ___sys_recvmsg+0x8d/0xc0 [ 539.935473] ? handle_mm_fault+0x117b/0x1e00 [ 539.936194] __sys_sendmsg+0x59/0xa0 [ 539.936915] do_syscall_64+0x5b/0x1d0 [ 539.937618] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 539.938317] RIP: 0033:0x7ff65a39c7b8 [ 539.938994] Code: 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 65 8f 0c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 89 54 [ 539.940367] RSP: 002b:00007fffba61c6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 539.941038] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff65a39c7b8 [ 539.941694] RDX: 0000000000000000 RSI: 00007fffba61c720 RDI: 0000000000000003 [ 539.942331] RBP: 000000005ee37949 R08: 0000000000000001 R09: 00000000012b89c0 [ 539.942951] R10: 0000000000404fa8 R11: 0000000000000246 R12: 0000000000000001 [ 539.943576] R13: 00007fffba62c970 R14: 0000000000000000 R15: 00000000004866a0 [ 539.944179] ---[ end trace 046f2dd1361dc9d7 ]---