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Date: Thu, 26 Feb 2015 11:50:29 +0100 From: "Thomas D." <whissi@...ssi.de> To: "therbert@...gle.com" <therbert@...gle.com>, "davem@...emloft.net" <davem@...emloft.net> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org Subject: ppp0: hw csum failure since 3fcb95a84 (RESEND) Hi, on my VPN server (strongswan-5.2.2 + ppp-2.4.7 + xl2tpd-1.3.6) I am seeing the following errors since linux-3.18 when a client (roadwarrior) connects (this is not fixed in linux-3.19.0): > Feb 16 20:36:08 vpn1 kernel: [ 90.265403] ppp0: hw csum failure > Feb 16 20:36:08 vpn1 kernel: [ 90.265411] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G O 3.17.0-rc4-00953-g3fcb95a #1 > Feb 16 20:36:08 vpn1 kernel: [ 90.265414] Hardware name: FUJITSU SIEMENS PRIMERGY RX200 S4 /D2671, BIOS 4.06 Rev. 1.17.2671 02/16/2010 > Feb 16 20:36:08 vpn1 kernel: [ 90.265416] 0000000000000001 ffff88043f9c3b90 ffffffff816a9c14 ffff880428477000 > Feb 16 20:36:08 vpn1 kernel: [ 90.265420] ffff88043f9c3ba8 ffffffff815bb6ea ffff8800bb69bd00 ffff88043f9c3bd8 > Feb 16 20:36:08 vpn1 kernel: [ 90.265423] ffffffff815b3255 b49cb25600000011 ffff8800bb69bd00 0000000000000014 > Feb 16 20:36:08 vpn1 kernel: [ 90.265427] Call Trace: > Feb 16 20:36:08 vpn1 kernel: [ 90.265429] <IRQ> [<ffffffff816a9c14>] dump_stack+0x45/0x56 > Feb 16 20:36:08 vpn1 kernel: [ 90.265444] [<ffffffff815bb6ea>] netdev_rx_csum_fault+0x3a/0x40 > Feb 16 20:36:08 vpn1 kernel: [ 90.265447] [<ffffffff815b3255>] __skb_checksum_complete+0xa5/0xb0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265451] [<ffffffff8163c34c>] nf_ip_checksum+0xcc/0x100 > Feb 16 20:36:08 vpn1 kernel: [ 90.265473] [<ffffffffa03116b2>] udp_error+0x102/0x1f0 [nf_conntrack] > Feb 16 20:36:08 vpn1 kernel: [ 90.265481] [<ffffffffa030b78c>] nf_conntrack_in+0xec/0x9a0 [nf_conntrack] > Feb 16 20:36:08 vpn1 kernel: [ 90.265487] [<ffffffff815f441f>] ? ip_rcv+0x27f/0x380 > Feb 16 20:36:08 vpn1 kernel: [ 90.265490] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:08 vpn1 kernel: [ 90.265496] [<ffffffffa0339352>] ipv4_conntrack_in+0x22/0x30 [nf_conntrack_ipv4] > Feb 16 20:36:08 vpn1 kernel: [ 90.265499] [<ffffffff815ed6ba>] nf_iterate+0x9a/0xb0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265503] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:08 vpn1 kernel: [ 90.265506] [<ffffffff815ed744>] nf_hook_slow+0x74/0x130 > Feb 16 20:36:08 vpn1 kernel: [ 90.265509] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:08 vpn1 kernel: [ 90.265513] [<ffffffff815f448e>] ip_rcv+0x2ee/0x380 > Feb 16 20:36:08 vpn1 kernel: [ 90.265516] [<ffffffff815bd622>] __netif_receive_skb_core+0x1e2/0x7c0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265519] [<ffffffff815bdc16>] __netif_receive_skb+0x16/0x70 > Feb 16 20:36:08 vpn1 kernel: [ 90.265521] [<ffffffff815be764>] process_backlog+0x94/0x150 > Feb 16 20:36:08 vpn1 kernel: [ 90.265524] [<ffffffff815be02a>] net_rx_action+0x11a/0x1b0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265529] [<ffffffff810d904c>] __do_softirq+0x10c/0x280 > Feb 16 20:36:08 vpn1 kernel: [ 90.265532] [<ffffffff810d9315>] irq_exit+0x95/0xa0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265536] [<ffffffff816b2656>] do_IRQ+0x56/0xe0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265540] [<ffffffff816b0bea>] common_interrupt+0x6a/0x6a > Feb 16 20:36:08 vpn1 kernel: [ 90.265541] <EOI> [<ffffffff8100c95c>] ? default_idle+0x1c/0xb0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265549] [<ffffffff8100d23f>] arch_cpu_idle+0xf/0x20 > Feb 16 20:36:08 vpn1 kernel: [ 90.265553] [<ffffffff81112547>] cpu_startup_entry+0x367/0x3a0 > Feb 16 20:36:08 vpn1 kernel: [ 90.265558] [<ffffffff8102d712>] start_secondary+0x1e2/0x220 > Feb 16 20:36:12 vpn1 kernel: [ 94.253650] ppp0: hw csum failure > Feb 16 20:36:12 vpn1 kernel: [ 94.253665] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.17.0-rc4-00953-g3fcb95a #1 > Feb 16 20:36:12 vpn1 kernel: [ 94.253667] Hardware name: FUJITSU SIEMENS PRIMERGY RX200 S4 /D2671, BIOS 4.06 Rev. 1.17.2671 02/16/2010 > Feb 16 20:36:12 vpn1 kernel: [ 94.253670] 0000000000000001 ffff88043f803b90 ffffffff816a9c14 ffff880428477000 > Feb 16 20:36:12 vpn1 kernel: [ 94.253674] ffff88043f803ba8 ffffffff815bb6ea ffff88042646bf00 ffff88043f803bd8 > Feb 16 20:36:12 vpn1 kernel: [ 94.253677] ffffffff815b3255 b39cb35600000011 ffff88042646bf00 0000000000000014 > Feb 16 20:36:12 vpn1 kernel: [ 94.253680] Call Trace: > Feb 16 20:36:12 vpn1 kernel: [ 94.253682] <IRQ> [<ffffffff816a9c14>] dump_stack+0x45/0x56 > Feb 16 20:36:12 vpn1 kernel: [ 94.253697] [<ffffffff815bb6ea>] netdev_rx_csum_fault+0x3a/0x40 > Feb 16 20:36:12 vpn1 kernel: [ 94.253700] [<ffffffff815b3255>] __skb_checksum_complete+0xa5/0xb0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253704] [<ffffffff8163c34c>] nf_ip_checksum+0xcc/0x100 > Feb 16 20:36:12 vpn1 kernel: [ 94.253725] [<ffffffffa03116b2>] udp_error+0x102/0x1f0 [nf_conntrack] > Feb 16 20:36:12 vpn1 kernel: [ 94.253732] [<ffffffffa030b78c>] nf_conntrack_in+0xec/0x9a0 [nf_conntrack] > Feb 16 20:36:12 vpn1 kernel: [ 94.253739] [<ffffffff815f441f>] ? ip_rcv+0x27f/0x380 > Feb 16 20:36:12 vpn1 kernel: [ 94.253742] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:12 vpn1 kernel: [ 94.253747] [<ffffffffa0339352>] ipv4_conntrack_in+0x22/0x30 [nf_conntrack_ipv4] > Feb 16 20:36:12 vpn1 kernel: [ 94.253751] [<ffffffff815ed6ba>] nf_iterate+0x9a/0xb0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253754] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:12 vpn1 kernel: [ 94.253757] [<ffffffff815ed744>] nf_hook_slow+0x74/0x130 > Feb 16 20:36:12 vpn1 kernel: [ 94.253760] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:12 vpn1 kernel: [ 94.253764] [<ffffffff815f448e>] ip_rcv+0x2ee/0x380 > Feb 16 20:36:12 vpn1 kernel: [ 94.253767] [<ffffffff815bd622>] __netif_receive_skb_core+0x1e2/0x7c0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253770] [<ffffffff815bdc16>] __netif_receive_skb+0x16/0x70 > Feb 16 20:36:12 vpn1 kernel: [ 94.253773] [<ffffffff815be764>] process_backlog+0x94/0x150 > Feb 16 20:36:12 vpn1 kernel: [ 94.253775] [<ffffffff815be02a>] net_rx_action+0x11a/0x1b0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253780] [<ffffffff810d904c>] __do_softirq+0x10c/0x280 > Feb 16 20:36:12 vpn1 kernel: [ 94.253783] [<ffffffff810d9315>] irq_exit+0x95/0xa0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253788] [<ffffffff816b2656>] do_IRQ+0x56/0xe0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253791] [<ffffffff816b0bea>] common_interrupt+0x6a/0x6a > Feb 16 20:36:12 vpn1 kernel: [ 94.253792] <EOI> [<ffffffff8100c95c>] ? default_idle+0x1c/0xb0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253800] [<ffffffff8100d23f>] arch_cpu_idle+0xf/0x20 > Feb 16 20:36:12 vpn1 kernel: [ 94.253804] [<ffffffff81112547>] cpu_startup_entry+0x367/0x3a0 > Feb 16 20:36:12 vpn1 kernel: [ 94.253807] [<ffffffff816a0ac7>] rest_init+0x77/0x80 > Feb 16 20:36:12 vpn1 kernel: [ 94.253812] [<ffffffff81d11eb5>] start_kernel+0x431/0x43e > Feb 16 20:36:12 vpn1 kernel: [ 94.253816] [<ffffffff81d11495>] x86_64_start_reservations+0x2a/0x2c > Feb 16 20:36:12 vpn1 kernel: [ 94.253819] [<ffffffff81d1158e>] x86_64_start_kernel+0xf7/0xfa > Feb 16 20:36:17 vpn1 kernel: [ 98.941276] ppp0: hw csum failure > Feb 16 20:36:17 vpn1 kernel: [ 98.941287] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G O 3.17.0-rc4-00953-g3fcb95a #1 > Feb 16 20:36:17 vpn1 kernel: [ 98.941290] Hardware name: FUJITSU SIEMENS PRIMERGY RX200 S4 /D2671, BIOS 4.06 Rev. 1.17.2671 02/16/2010 > Feb 16 20:36:17 vpn1 kernel: [ 98.941292] 0000000000000001 ffff88043f983b90 ffffffff816a9c14 ffff880428477000 > Feb 16 20:36:17 vpn1 kernel: [ 98.941296] ffff88043f983ba8 ffffffff815bb6ea ffff880424e77900 ffff88043f983bd8 > Feb 16 20:36:17 vpn1 kernel: [ 98.941299] ffffffff815b3255 b298b45a00000011 ffff880424e77900 0000000000000014 > Feb 16 20:36:17 vpn1 kernel: [ 98.941302] Call Trace: > Feb 16 20:36:17 vpn1 kernel: [ 98.941303] <IRQ> [<ffffffff816a9c14>] dump_stack+0x45/0x56 > Feb 16 20:36:17 vpn1 kernel: [ 98.941313] [<ffffffff815bb6ea>] netdev_rx_csum_fault+0x3a/0x40 > Feb 16 20:36:17 vpn1 kernel: [ 98.941316] [<ffffffff815b3255>] __skb_checksum_complete+0xa5/0xb0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941319] [<ffffffff8163c34c>] nf_ip_checksum+0xcc/0x100 > Feb 16 20:36:17 vpn1 kernel: [ 98.941331] [<ffffffffa03116b2>] udp_error+0x102/0x1f0 [nf_conntrack] > Feb 16 20:36:17 vpn1 kernel: [ 98.941338] [<ffffffffa030b78c>] nf_conntrack_in+0xec/0x9a0 [nf_conntrack] > Feb 16 20:36:17 vpn1 kernel: [ 98.941344] [<ffffffff815f441f>] ? ip_rcv+0x27f/0x380 > Feb 16 20:36:17 vpn1 kernel: [ 98.941347] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:17 vpn1 kernel: [ 98.941352] [<ffffffffa0339352>] ipv4_conntrack_in+0x22/0x30 [nf_conntrack_ipv4] > Feb 16 20:36:17 vpn1 kernel: [ 98.941355] [<ffffffff815ed6ba>] nf_iterate+0x9a/0xb0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941358] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:17 vpn1 kernel: [ 98.941361] [<ffffffff815ed744>] nf_hook_slow+0x74/0x130 > Feb 16 20:36:17 vpn1 kernel: [ 98.941364] [<ffffffff815f3ab0>] ? inet_del_offload+0x40/0x40 > Feb 16 20:36:17 vpn1 kernel: [ 98.941368] [<ffffffff815f448e>] ip_rcv+0x2ee/0x380 > Feb 16 20:36:17 vpn1 kernel: [ 98.941371] [<ffffffff815bd622>] __netif_receive_skb_core+0x1e2/0x7c0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941374] [<ffffffff815bdc16>] __netif_receive_skb+0x16/0x70 > Feb 16 20:36:17 vpn1 kernel: [ 98.941376] [<ffffffff815be764>] process_backlog+0x94/0x150 > Feb 16 20:36:17 vpn1 kernel: [ 98.941379] [<ffffffff815be02a>] net_rx_action+0x11a/0x1b0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941383] [<ffffffff810d904c>] __do_softirq+0x10c/0x280 > Feb 16 20:36:17 vpn1 kernel: [ 98.941386] [<ffffffff810d9315>] irq_exit+0x95/0xa0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941389] [<ffffffff816b2656>] do_IRQ+0x56/0xe0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941392] [<ffffffff816b0bea>] common_interrupt+0x6a/0x6a > Feb 16 20:36:17 vpn1 kernel: [ 98.941393] <EOI> [<ffffffff8100c95c>] ? default_idle+0x1c/0xb0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941400] [<ffffffff8100d23f>] arch_cpu_idle+0xf/0x20 > Feb 16 20:36:17 vpn1 kernel: [ 98.941403] [<ffffffff81112547>] cpu_startup_entry+0x367/0x3a0 > Feb 16 20:36:17 vpn1 kernel: [ 98.941406] [<ffffffff8102d712>] start_secondary+0x1e2/0x220 I bisected the kernel and this is the result: > 3fcb95a84fdb11e922cfac3b5cd3a9d96a9e9995 is the first bad commit > commit 3fcb95a84fdb11e922cfac3b5cd3a9d96a9e9995 > Author: Tom Herbert <therbert@...gle.com> > Date: Mon Sep 22 11:39:44 2014 -0700 > > udp: Need to make ip6_udp_tunnel.c have GPL license > > Unable to load various tunneling modules without this: > > [ 80.679049] fou: Unknown symbol udp_sock_create6 (err 0) > [ 91.439939] ip6_udp_tunnel: Unknown symbol ip6_local_out (err 0) > [ 91.439954] ip6_udp_tunnel: Unknown symbol __put_net (err 0) > [ 91.457792] vxlan: Unknown symbol udp_sock_create6 (err 0) > [ 91.457831] vxlan: Unknown symbol udp_tunnel6_xmit_skb (err 0) > > Signed-off-by: Tom Herbert <therbert@...gle.com> > Signed-off-by: David S. Miller <davem@...emloft.net> > > :040000 040000 1ec7af31dba9cd4bbccdc5d47dbd9a402a727253 b658c31f77f9fb2cedd0010b95c47e17986a7389 M net Complete bisect log: > Bisecting: a merge base must be tested > [bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9] Linux 3.17 > Bisecting: 6452 revisions left to test after this (roughly 13 steps) > [754c780953397dd5ee5191b7b3ca67e09088ce7a] Merge branch 'for-v3.18' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping > Bisecting: 3086 revisions left to test after this (roughly 12 steps) > [4a4743e840d06a5772be7c21110807165c5b3c9f] Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > Bisecting: 1506 revisions left to test after this (roughly 11 steps) > [a4b4a2b7f98a45c71a906b1126cabea6446a9905] Merge tag 'master-2014-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next > Bisecting: 795 revisions left to test after this (roughly 10 steps) > [58310b3fc6aaa4f896ad3cbcd88851e7ad0908f6] Merge branch 'mlx4-next' > Bisecting: 397 revisions left to test after this (roughly 9 steps) > [005eff5919cdc29ec7f1c6169db40c533f1e05d7] ath5k: add missing include for debug code > Bisecting: 186 revisions left to test after this (roughly 8 steps) > [852248449c73b5ffe109a33d65485c71d3d398a7] Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next > Bisecting: 96 revisions left to test after this (roughly 7 steps) > [b1840060508d2c5202abb07b6128e4645d78fe57] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next > Bisecting: 56 revisions left to test after this (roughly 6 steps) > [f71470b37e79d6eb151debd47364d920b7babd30] udp: move logic out of udp[46]_ufo_send_check > Bisecting: 28 revisions left to test after this (roughly 5 steps) > [d6b7a9b7e77ae4d2a7652cdfbd65f2de0a1053b0] be2net: add speed reporting for 20G-KR interface > Bisecting: 14 revisions left to test after this (roughly 4 steps) > [de5df63228fcfbd5bb7fd883774c18fec9e61f12] net: sched: cls_u32 changes to knode must appear atomic to readers > Bisecting: 6 revisions left to test after this (roughly 3 steps) > [5f820b6c6e1cd75d5f2d08a684ecb3c2fda22d14] be2net: remove multiple assignments on a single line > Bisecting: 3 revisions left to test after this (roughly 2 steps) > [3fcb95a84fdb11e922cfac3b5cd3a9d96a9e9995] udp: Need to make ip6_udp_tunnel.c have GPL license > Bisecting: 0 revisions left to test after this (roughly 1 step) > [5624e80f8dba63499684d8920733d7465ad7d14b] Merge branch 'be2net-next' > 3fcb95a84fdb11e922cfac3b5cd3a9d96a9e9995 is the first bad commit > commit 3fcb95a84fdb11e922cfac3b5cd3a9d96a9e9995 > Author: Tom Herbert <therbert@...gle.com> > Date: Mon Sep 22 11:39:44 2014 -0700 > > udp: Need to make ip6_udp_tunnel.c have GPL license > > Unable to load various tunneling modules without this: > > [ 80.679049] fou: Unknown symbol udp_sock_create6 (err 0) > [ 91.439939] ip6_udp_tunnel: Unknown symbol ip6_local_out (err 0) > [ 91.439954] ip6_udp_tunnel: Unknown symbol __put_net (err 0) > [ 91.457792] vxlan: Unknown symbol udp_sock_create6 (err 0) > [ 91.457831] vxlan: Unknown symbol udp_tunnel6_xmit_skb (err 0) > > Signed-off-by: Tom Herbert <therbert@...gle.com> > Signed-off-by: David S. Miller <davem@...emloft.net> > > :040000 040000 1ec7af31dba9cd4bbccdc5d47dbd9a402a727253 b658c31f77f9fb2cedd0010b95c47e17986a7389 M net Without the "bad commit" I don't see hw_csum errors, only > [ 60.723963] ip6_udp_tunnel: Unknown symbol ip6_local_out (err 0) > [ 60.724000] ip6_udp_tunnel: Unknown symbol __put_net (err 0) on boot. If you need further information please don't hesitate to ask me. Thanks! -Thomas -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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