Bug#771224: Acknowledgement (linux-image-3.16.0-4-amd64: Recurring traces from tcp_fragment+0x2b1/0x2c0 (linux-3.16.7/net/ipv4/tcp_output.c:1085))

[Roman Lebedev <lebedev.ri@gmail.com>]

Still seeing it on current unstable kernel:

$ dpkg -l |grep linux-image

ii  linux-image-3.16.0-4-amd64            3.16.7-ckt9-3                       amd64        Linux 3.16 for 64-bit PCs

ii  linux-image-amd64                     3.16+63                             amd64        Linux for 64-bit PCs (meta-package)

From dmesg:

[ 2831.976346] ------------[ cut here ]------------

[ 2831.976354] WARNING: CPU: 6 PID: 29988 at /build/linux-RIvzKI/linux-3.16.7-ckt9/net/ipv4/tcp_output.c:1085 tcp_fragment+0x2b1/0x2c0()

[ 2831.976355] Modules linked in: cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave cfg80211 binfmt_misc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc fglrx(PO) kvm_amd joydev nls_utf8 kvm nls_cp437 hid_generic vfat usbhid fat hid crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul eeepc_wmi asus_wmi snd_hda_codec_realtek snd_hda_codec_generic glue_helper sparse_keymap rfkill video mxm_wmi snd_hda_codec_hdmi e1000e snd_hda_intel ablk_helper evdev efi_pstore ptp snd_hda_controller cryptd serio_raw pps_core efivars xhci_hcd sg ohci_pci snd_hda_codec ohci_hcd snd_hwdep snd_pcm pcspkr snd_timer edac_mce_amd snd fam15h_power k10temp edac_core tpm_infineon shpchp ehci_pci tpm_tis ehci_hcd wmi tpm soundcore usbcore button sp5100_tco i2c_piix4 usb_common

[ 2831.976394]  processor i2c_core thermal_sys tcp_yeah tcp_vegas it87 hwmon_vid loop fuse parport_pc ppdev lp parport autofs4 dm_mod crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel ahci libahci libata scsi_mod

[ 2831.976410] CPU: 6 PID: 29988 Comm: CompositorTileW Tainted: P           O  3.16.0-4-amd64 #1 Debian 3.16.7-ckt9-3

[ 2831.976411] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CROSSHAIR V FORMULA-Z, BIOS 2101 04/17/2014

[ 2831.976413]  0000000000000009 ffffffff8150ac96 0000000000000000 ffffffff81067747

[ 2831.976415]  ffff88066a3c9800 ffff8806452ad840 0000000000000005 0000000000000080

[ 2831.976417]  000000000376f6d8 ffffffff8146e901 ffff88066a3c9800 ffff8806452ad840

[ 2831.976419] Call Trace:

[ 2831.976420]  <IRQ>  [<ffffffff8150ac96>] ? dump_stack+0x41/0x51

[ 2831.976427]  [<ffffffff81067747>] ? warn_slowpath_common+0x77/0x90

[ 2831.976429]  [<ffffffff8146e901>] ? tcp_fragment+0x2b1/0x2c0

[ 2831.976431]  [<ffffffff8146538e>] ? tcp_mark_head_lost+0x19e/0x260

[ 2831.976433]  [<ffffffff8146a4f6>] ? tcp_fastretrans_alert+0x626/0xac0

[ 2831.976435]  [<ffffffff8146b2fd>] ? tcp_ack+0x86d/0x11b0

[ 2831.976438]  [<ffffffff8146c111>] ? tcp_rcv_established+0x1a1/0x6c0

[ 2831.976440]  [<ffffffff81475e9f>] ? tcp_v4_do_rcv+0x1af/0x4c0

[ 2831.976442]  [<ffffffff81406736>] ? sock_def_readable+0x36/0x70

[ 2831.976444]  [<ffffffff8146c359>] ? tcp_rcv_established+0x3e9/0x6c0

[ 2831.976446]  [<ffffffff81477c56>] ? tcp_v4_rcv+0x696/0x7a0

[ 2831.976448]  [<ffffffff8145cdbf>] ? __inet_lookup_established+0x3f/0x120

[ 2831.976450]  [<ffffffff8145377e>] ? ip_local_deliver_finish+0x9e/0x200

[ 2831.976452]  [<ffffffff8141c7f3>] ? __netif_receive_skb_core+0x533/0x750

[ 2831.976454]  [<ffffffff8101b4c5>] ? read_tsc+0x5/0x20

[ 2831.976456]  [<ffffffff8141ca8f>] ? netif_receive_skb_internal+0x1f/0x90

[ 2831.976457]  [<ffffffff8141d570>] ? napi_gro_receive+0xb0/0xe0

[ 2831.976464]  [<ffffffffa03f18cb>] ? e1000_clean_rx_irq+0x27b/0x460 [e1000e]

[ 2831.976468]  [<ffffffffa03f873c>] ? e1000e_poll+0x6c/0x2d0 [e1000e]

[ 2831.976470]  [<ffffffff8141ce20>] ? net_rx_action+0x140/0x240

[ 2831.976473]  [<ffffffff8106c5f1>] ? __do_softirq+0xf1/0x290

[ 2831.976474]  [<ffffffff8106c9c5>] ? irq_exit+0x95/0xa0

[ 2831.976477]  [<ffffffff81513c02>] ? do_IRQ+0x52/0xe0

[ 2831.976479]  [<ffffffff81511aad>] ? common_interrupt+0x6d/0x6d

[ 2831.976480]  <EOI>  [<ffffffff8151105f>] ? system_call_trace_compare_end+0x10/0x15

[ 2831.976483] ---[ end trace 7113c6713b22c381 ]---

[ 2831.976492] ------------[ cut here ]------------

[ 2831.976495] WARNING: CPU: 6 PID: 29988 at /build/linux-RIvzKI/linux-3.16.7-ckt9/net/ipv4/tcp_output.c:1085 tcp_fragment+0x2b1/0x2c0()

[ 2831.976496] Modules linked in: cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave cfg80211 binfmt_misc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc fglrx(PO) kvm_amd joydev nls_utf8 kvm nls_cp437 hid_generic vfat usbhid fat hid crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul eeepc_wmi asus_wmi snd_hda_codec_realtek snd_hda_codec_generic glue_helper sparse_keymap rfkill video mxm_wmi snd_hda_codec_hdmi e1000e snd_hda_intel ablk_helper evdev efi_pstore ptp snd_hda_controller cryptd serio_raw pps_core efivars xhci_hcd sg ohci_pci snd_hda_codec ohci_hcd snd_hwdep snd_pcm pcspkr snd_timer edac_mce_amd snd fam15h_power k10temp edac_core tpm_infineon shpchp ehci_pci tpm_tis ehci_hcd wmi tpm soundcore usbcore button sp5100_tco i2c_piix4 usb_common

[ 2831.976520]  processor i2c_core thermal_sys tcp_yeah tcp_vegas it87 hwmon_vid loop fuse parport_pc ppdev lp parport autofs4 dm_mod crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel ahci libahci libata scsi_mod

[ 2831.976529] CPU: 6 PID: 29988 Comm: CompositorTileW Tainted: P        W  O  3.16.0-4-amd64 #1 Debian 3.16.7-ckt9-3

[ 2831.976531] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CROSSHAIR V FORMULA-Z, BIOS 2101 04/17/2014

[ 2831.976532]  0000000000000009 ffffffff8150ac96 0000000000000000 ffffffff81067747

[ 2831.976533]  ffff88066a3c9800 ffff8806452ad840 0000000000000005 0000000000000080

[ 2831.976535]  000000000376f718 ffffffff8146e901 ffff88066a3c9800 ffff8806452ad840

[ 2831.976537] Call Trace:

[ 2831.976538]  <IRQ>  [<ffffffff8150ac96>] ? dump_stack+0x41/0x51

[ 2831.976541]  [<ffffffff81067747>] ? warn_slowpath_common+0x77/0x90

[ 2831.976544]  [<ffffffff8146e901>] ? tcp_fragment+0x2b1/0x2c0

[ 2831.976546]  [<ffffffff8146538e>] ? tcp_mark_head_lost+0x19e/0x260

[ 2831.976548]  [<ffffffff8146a4f6>] ? tcp_fastretrans_alert+0x626/0xac0

[ 2831.976550]  [<ffffffff8146b2fd>] ? tcp_ack+0x86d/0x11b0

[ 2831.976552]  [<ffffffff8146d901>] ? tcp_select_initial_window+0x111/0x120

[ 2831.976554]  [<ffffffff8146c111>] ? tcp_rcv_established+0x1a1/0x6c0

[ 2831.976556]  [<ffffffff81475e9f>] ? tcp_v4_do_rcv+0x1af/0x4c0

[ 2831.976558]  [<ffffffff81406736>] ? sock_def_readable+0x36/0x70

[ 2831.976560]  [<ffffffff8146c359>] ? tcp_rcv_established+0x3e9/0x6c0

[ 2831.976561]  [<ffffffff81477c56>] ? tcp_v4_rcv+0x696/0x7a0

[ 2831.976563]  [<ffffffff8145cdbf>] ? __inet_lookup_established+0x3f/0x120

[ 2831.976565]  [<ffffffff8145377e>] ? ip_local_deliver_finish+0x9e/0x200

[ 2831.976567]  [<ffffffff8141c7f3>] ? __netif_receive_skb_core+0x533/0x750

[ 2831.976568]  [<ffffffff8101b4c5>] ? read_tsc+0x5/0x20

[ 2831.976570]  [<ffffffff8141ca8f>] ? netif_receive_skb_internal+0x1f/0x90

[ 2831.976572]  [<ffffffff8141d570>] ? napi_gro_receive+0xb0/0xe0

[ 2831.976576]  [<ffffffffa03f18cb>] ? e1000_clean_rx_irq+0x27b/0x460 [e1000e]

[ 2831.976580]  [<ffffffffa03f873c>] ? e1000e_poll+0x6c/0x2d0 [e1000e]

[ 2831.976581]  [<ffffffff8141ce20>] ? net_rx_action+0x140/0x240

[ 2831.976583]  [<ffffffff8106c5f1>] ? __do_softirq+0xf1/0x290

[ 2831.976585]  [<ffffffff8106c9c5>] ? irq_exit+0x95/0xa0

[ 2831.976586]  [<ffffffff81513c02>] ? do_IRQ+0x52/0xe0

[ 2831.976588]  [<ffffffff81511aad>] ? common_interrupt+0x6d/0x6d

[ 2831.976589]  <EOI>  [<ffffffff8151105f>] ? system_call_trace_compare_end+0x10/0x15

[ 2831.976592] ---[ end trace 7113c6713b22c382 ]---

[ 2871.980090] ------------[ cut here ]------------

[ 2871.980104] WARNING: CPU: 6 PID: 0 at /build/linux-RIvzKI/linux-3.16.7-ckt9/net/ipv4/tcp_output.c:1085 tcp_fragment+0x2b1/0x2c0()

[ 2871.980107] Modules linked in: cpufreq_stats cpufreq_userspace cpufreq_conservative cpufreq_powersave cfg80211 binfmt_misc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc fglrx(PO) kvm_amd joydev nls_utf8 kvm nls_cp437 hid_generic vfat usbhid fat hid crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul eeepc_wmi asus_wmi snd_hda_codec_realtek snd_hda_codec_generic glue_helper sparse_keymap rfkill video mxm_wmi snd_hda_codec_hdmi e1000e snd_hda_intel ablk_helper evdev efi_pstore ptp snd_hda_controller cryptd serio_raw pps_core efivars xhci_hcd sg ohci_pci snd_hda_codec ohci_hcd snd_hwdep snd_pcm pcspkr snd_timer edac_mce_amd snd fam15h_power k10temp edac_core tpm_infineon shpchp ehci_pci tpm_tis ehci_hcd wmi tpm soundcore usbcore button sp5100_tco i2c_piix4 usb_common

[ 2871.980150]  processor i2c_core thermal_sys tcp_yeah tcp_vegas it87 hwmon_vid loop fuse parport_pc ppdev lp parport autofs4 dm_mod crc32c_generic btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel ahci libahci libata scsi_mod

[ 2871.980168] CPU: 6 PID: 0 Comm: swapper/6 Tainted: P        W  O  3.16.0-4-amd64 #1 Debian 3.16.7-ckt9-3

[ 2871.980171] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CROSSHAIR V FORMULA-Z, BIOS 2101 04/17/2014

[ 2871.980173]  0000000000000009 ffffffff8150ac96 0000000000000000 ffffffff81067747

[ 2871.980177]  ffff8800ae094600 ffff880646fcd8c0 0000000000000003 0000000000000180

[ 2871.980182]  00000000eebfbef5 ffffffff8146e901 ffff8800ae094600 ffff880646fcd8c0

[ 2871.980185] Call Trace:

[ 2871.980187]  <IRQ>  [<ffffffff8150ac96>] ? dump_stack+0x41/0x51

[ 2871.980195]  [<ffffffff81067747>] ? warn_slowpath_common+0x77/0x90

[ 2871.980199]  [<ffffffff8146e901>] ? tcp_fragment+0x2b1/0x2c0

[ 2871.980203]  [<ffffffff8146538e>] ? tcp_mark_head_lost+0x19e/0x260

[ 2871.980206]  [<ffffffff8146a4f6>] ? tcp_fastretrans_alert+0x626/0xac0

[ 2871.980209]  [<ffffffff8146b2fd>] ? tcp_ack+0x86d/0x11b0

[ 2871.980213]  [<ffffffff8146c111>] ? tcp_rcv_established+0x1a1/0x6c0

[ 2871.980216]  [<ffffffff812ceeb5>] ? iommu_area_alloc+0x75/0x90

[ 2871.980219]  [<ffffffff81475e9f>] ? tcp_v4_do_rcv+0x1af/0x4c0

[ 2871.980222]  [<ffffffff81477c56>] ? tcp_v4_rcv+0x696/0x7a0

[ 2871.980226]  [<ffffffff8145cdbf>] ? __inet_lookup_established+0x3f/0x120

[ 2871.980229]  [<ffffffff8145377e>] ? ip_local_deliver_finish+0x9e/0x200

[ 2871.980232]  [<ffffffff8141c7f3>] ? __netif_receive_skb_core+0x533/0x750

[ 2871.980235]  [<ffffffff8101b4c5>] ? read_tsc+0x5/0x20

[ 2871.980238]  [<ffffffff8141ca8f>] ? netif_receive_skb_internal+0x1f/0x90

[ 2871.980241]  [<ffffffff8141d570>] ? napi_gro_receive+0xb0/0xe0

[ 2871.980248]  [<ffffffffa03f18cb>] ? e1000_clean_rx_irq+0x27b/0x460 [e1000e]

[ 2871.980255]  [<ffffffffa03f873c>] ? e1000e_poll+0x6c/0x2d0 [e1000e]

[ 2871.980258]  [<ffffffff8141ce20>] ? net_rx_action+0x140/0x240

[ 2871.980263]  [<ffffffff8106c5f1>] ? __do_softirq+0xf1/0x290

[ 2871.980267]  [<ffffffff8106c9c5>] ? irq_exit+0x95/0xa0

[ 2871.980270]  [<ffffffff81513c02>] ? do_IRQ+0x52/0xe0

[ 2871.980274]  [<ffffffff81511aad>] ? common_interrupt+0x6d/0x6d

[ 2871.980275]  <EOI>  [<ffffffff8108ac6d>] ? __hrtimer_start_range_ns+0x1cd/0x390

[ 2871.980281]  [<ffffffff813ddb4f>] ? cpuidle_enter_state+0x4f/0xc0

[ 2871.980285]  [<ffffffff813ddb48>] ? cpuidle_enter_state+0x48/0xc0

[ 2871.980290]  [<ffffffff810a7e68>] ? cpu_startup_entry+0x2f8/0x400

[ 2871.980293]  [<ffffffff81042c4f>] ? start_secondary+0x20f/0x2d0

[ 2871.980296] ---[ end trace 7113c6713b22c383 ]---

Roman.