Description of problem: ----------------------- After upgrading kernel packages to 3.16, messages file is quickly flooded with similar errors: Oct 1 10:49:23 afftar kernel: [ 9.558032] ppp0: hw csum failure Oct 1 10:49:23 afftar kernel: [ 9.558041] CPU: 1 PID: 1000 Comm: java Not tainted 3.16.3-200.fc20.x86_64 #1 Oct 1 10:49:23 afftar kernel: [ 9.558044] Hardware name: System manufacturer System Product Name/M3N-H/HDMI, BIOS ASUS M3N-H/HDMI ACPI BIOS Revision 2701 09/27/2010 Oct 1 10:49:23 afftar kernel: [ 9.558046] 0000000000000000 000000007cd0c47e ffff880127c43b60 ffffffff81707091 Oct 1 10:49:23 afftar kernel: [ 9.558050] ffff8800bb1a2000 ffff880127c43b78 ffffffff815f54ea ffff8800cafdbb00 Oct 1 10:49:23 afftar kernel: [ 9.558053] ffff880127c43ba8 ffffffff815ecd2a 1763efe1cafdbb00 ffff8800cafdbb00 Oct 1 10:49:23 afftar kernel: [ 9.558056] Call Trace: Oct 1 10:49:23 afftar kernel: [ 9.558058] <IRQ> [<ffffffff81707091>] dump_stack+0x45/0x56 Oct 1 10:49:23 afftar kernel: [ 9.558070] [<ffffffff815f54ea>] netdev_rx_csum_fault+0x3a/0x40 Oct 1 10:49:23 afftar kernel: [ 9.558075] [<ffffffff815ecd2a>] __skb_checksum_complete+0xaa/0xb0 Oct 1 10:49:23 afftar kernel: [ 9.558079] [<ffffffff816874fc>] nf_ip_checksum+0xcc/0x100 Oct 1 10:49:23 afftar kernel: [ 9.558095] [<ffffffffa03fb573>] udp_error+0x103/0x200 [nf_conntrack] Oct 1 10:49:23 afftar kernel: [ 9.558100] [<ffffffffa0507e30>] ? pppol2tp_seq_show+0x2d0/0x2d0 [l2tp_ppp] Oct 1 10:49:23 afftar kernel: [ 9.558106] [<ffffffffa03f4873>] nf_conntrack_in+0xf3/0xab0 [nf_conntrack] Oct 1 10:49:23 afftar kernel: [ 9.558111] [<ffffffff816357b0>] ? ip_rcv_finish+0x350/0x350 Oct 1 10:49:23 afftar kernel: [ 9.558114] [<ffffffff81635460>] ? inet_del_offload+0x40/0x40 Oct 1 10:49:23 afftar kernel: [ 9.558119] [<ffffffffa04312f2>] ipv4_conntrack_in+0x22/0x30 [nf_conntrack_ipv4] Oct 1 10:49:23 afftar kernel: [ 9.558122] [<ffffffff8162c45a>] nf_iterate+0xaa/0xc0 Oct 1 10:49:23 afftar kernel: [ 9.558125] [<ffffffff81635460>] ? inet_del_offload+0x40/0x40 Oct 1 10:49:23 afftar kernel: [ 9.558127] [<ffffffff8162c4f4>] nf_hook_slow+0x84/0x140 Oct 1 10:49:23 afftar kernel: [ 9.558130] [<ffffffff81635460>] ? inet_del_offload+0x40/0x40 Oct 1 10:49:23 afftar kernel: [ 9.558133] [<ffffffff81635e88>] ip_rcv+0x2f8/0x3d0 Oct 1 10:49:23 afftar kernel: [ 9.558136] [<ffffffff815f82a2>] __netif_receive_skb_core+0x562/0x790 Oct 1 10:49:23 afftar kernel: [ 9.558139] [<ffffffff815f84e8>] __netif_receive_skb+0x18/0x60 Oct 1 10:49:23 afftar kernel: [ 9.558142] [<ffffffff815f91ce>] process_backlog+0x9e/0x150 Oct 1 10:49:23 afftar kernel: [ 9.558145] [<ffffffff815f8989>] net_rx_action+0x149/0x240 Oct 1 10:49:23 afftar kernel: [ 9.558149] [<ffffffff810924d5>] __do_softirq+0xf5/0x2a0 Oct 1 10:49:23 afftar kernel: [ 9.558152] [<ffffffff810928ed>] irq_exit+0xbd/0xd0 Oct 1 10:49:23 afftar kernel: [ 9.558156] [<ffffffff81711408>] do_IRQ+0x58/0xf0 Oct 1 10:49:23 afftar kernel: [ 9.558159] [<ffffffff8170f1ed>] common_interrupt+0x6d/0x6d The issue does not happen with previous kernel 3.15. Version-Release number of selected component (if applicable): ------------------------------------------------------------- kernel-3.16.3-200.fc20.x86_64 kernel-modules-extra-3.16.3-200.fc20.x86_64 kernel-headers-3.16.3-200.fc20.x86_64 ppp-2.4.5-34.fc20.x86_64 xl2tpd-1.3.6-1.fc20.x86_64 How reproducible: ----------------- Always when xl2tpd/ppp is connected. Steps to Reproduce: Actual results: Expected results: Additional info:
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
The issue still happens with 3.17.2-200.fc20
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.18.7-100.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
Occurring for me on Fedora 21 with these versions: kernel-3.18.8-201.fc21.x86_64 xl2tpd-1.3.6-6.fc21.x86_64 strongswan-5.2.0-4.fc21.x86_64 ppp-2.4.7-6.fc21.x86_64 I have opened https://bugzilla.redhat.com/show_bug.cgi?id=1200635 against Fedora 21 but it looks the same.
Reverting Need Info status as the issue has been confirmed.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs. Fedora 20 has now been rebased to 3.19.5-100.fc20. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
Still happens with updated kernel.
There is a patch available for upstream: http://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/patch/?id=91f5bd8437d39feecfee215e032f440b1faa25f8 I recommend to include it in the current fc20 kernel version.
Created attachment 1026270 [details] The fix
It already is in the F20 kernel. Those two commits you referenced in comment #9 both went into the upstream stable 3.19.7 release. That build is sitting in updates testing, so feel free to provide karma for it if you would like.
kernel-3.19.7-100.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/FEDORA-2015-7911/kernel-3.19.7-100.fc20
kernel-3.19.8-100.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/kernel-3.19.8-100.fc20
3.19.8-100.fc20.x86_64 resolves the bug for me. I will monitor the stability of new kernel a couple of days.
Package kernel-3.19.8-100.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.19.8-100.fc20' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-8518/kernel-3.19.8-100.fc20 then log in and leave karma (feedback).
kernel-3.19.8-100.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.