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.
