https://bugzilla.novell.com/show_bug.cgi?id=865613 https://bugzilla.novell.com/show_bug.cgi?id=865613#c0 Summary: kernel WARNING in tcp_fastretrans_alert Classification: openSUSE Product: openSUSE 13.1 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jnelson-suse@jamponi.net QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:27.0) Gecko/20100101 Firefox/27.0 I was working when I noticed my network disappeared. Network Manager still thought it was connected, but it was clearly dead in the water. 'dmesg' showed a kernel WARNING. I brought the interface down and back up again manually and things returned to normal, but this is clearly an unexpected condition. Below, please find the warnings issued by the kernel. [1236694.747258] ------------[ cut here ]------------ [1236694.747267] WARNING: CPU: 1 PID: 597 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.6/linux-3.11/net/ipv4/tcp_input.c:2711 tcp_fastretrans_alert+0xb8d/0xc10() [1236694.747268] Modules linked in: uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops ppdev parport_pc lp parport ufs qnx4 hfsplus hfs minix vfat msdos fat jfs xfs reiserfs tun snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device usb_storage fuse xt_tcpudp xt_pkttype xt_LOG xt_limit bnep bluetooth af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables tcp_westwood arc4 iwldvm mac80211 iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_conexant sdhci_pci sdhci mmc_core iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm snd_hda_intel snd_hda_codec snd_hwdep pcspkr snd_pcm joydev serio_raw [1236694.747306] i2c_i801 sr_mod cdrom lpc_ich mfd_core shpchp snd_timer snd_page_alloc e1000e thinkpad_acpi ptp pps_core rfkill wmi snd battery ac soundcore tpm_tis tpm tpm_bios mperf sg autofs4 btrfs raid6_pq zlib_deflate xor libcrc32c sha256_ssse3 sha256_generic crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 i915 drm_kms_helper drm i2c_algo_bit button video thermal processor thermal_sys scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac scsi_dh dm_snapshot dm_mirror dm_region_hash dm_log dm_crypt dm_mod ata_generic ata_piix [1236694.747337] CPU: 1 PID: 597 Comm: irq/47-iwlwifi Tainted: G W 3.11.6-4-desktop #1 [1236694.747338] Hardware name: LENOVO 4239CTO/4239CTO, BIOS 8AET62WW (1.42 ) 01/24/2013 [1236694.747340] 0000000000000009 ffffffff815a9bd7 0000000000000000 ffffffff81050eb2 [1236694.747342] ffff88018c285740 0000000000004322 0000000000000001 0000000000000006 [1236694.747344] 0000000000000000 ffffffff8151040d 000000008c285740 ffff88018c285740 [1236694.747346] Call Trace: [1236694.747356] [<ffffffff81004a18>] dump_trace+0x88/0x310 [1236694.747360] [<ffffffff81004d70>] show_stack_log_lvl+0xd0/0x1d0 [1236694.747362] [<ffffffff810061bc>] show_stack+0x1c/0x50 [1236694.747367] [<ffffffff815a9bd7>] dump_stack+0x50/0x89 [1236694.747372] [<ffffffff81050eb2>] warn_slowpath_common+0x72/0x90 [1236694.747376] [<ffffffff8151040d>] tcp_fastretrans_alert+0xb8d/0xc10 [1236694.747406] [<ffffffff81510fb2>] tcp_ack+0xa32/0x1000 [1236694.747411] [<ffffffff81511a11>] tcp_rcv_established+0x161/0x840 [1236694.747416] [<ffffffff8151a837>] tcp_v4_do_rcv+0xd7/0x300 [1236694.747419] [<ffffffff8151c9f0>] tcp_v4_rcv+0x660/0x7b0 [1236694.747423] [<ffffffff814f9dd6>] ip_local_deliver_finish+0xc6/0x210 [1236694.747428] [<ffffffff814c7757>] __netif_receive_skb_core+0x687/0x870 [1236694.747432] [<ffffffff814c79aa>] netif_receive_skb+0x1a/0x90 [1236694.747445] [<ffffffffa06ac4aa>] ieee80211_deliver_skb.isra.27+0x8a/0x200 [mac80211] [1236694.747478] [<ffffffffa06ad933>] ieee80211_rx_handlers+0xc13/0x20e0 [mac80211] [1236694.747503] [<ffffffffa06af24c>] ieee80211_prepare_and_rx_handle+0x44c/0xa60 [mac80211] [1236694.747528] [<ffffffffa06afb51>] ieee80211_rx+0x2f1/0x830 [mac80211] [1236694.747551] [<ffffffffa07675c0>] iwlagn_rx_reply_rx+0x3f0/0x700 [iwldvm] [1236694.747567] [<ffffffffa0654ee9>] iwl_pcie_irq_handler+0x849/0xc90 [iwlwifi] [1236694.747575] [<ffffffff810e34a6>] irq_thread_fn+0x16/0x40 [1236694.747578] [<ffffffff810e3a03>] irq_thread+0x113/0x140 [1236694.747583] [<ffffffff81071c0f>] kthread+0xaf/0xc0 [1236694.747586] [<ffffffff815b777c>] ret_from_fork+0x7c/0xb0 [1236694.747589] ---[ end trace 186bf02f3cb42295 ]--- [1236894.694454] ------------[ cut here ]------------ [1236894.694463] WARNING: CPU: 1 PID: 597 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.6/linux-3.11/net/ipv4/tcp_input.c:2711 tcp_fastretrans_alert+0xb8d/0xc10() [1236894.694464] Modules linked in: uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops ppdev parport_pc lp parport ufs qnx4 hfsplus hfs minix vfat msdos fat jfs xfs reiserfs tun snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device usb_storage fuse xt_tcpudp xt_pkttype xt_LOG xt_limit bnep bluetooth af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables tcp_westwood arc4 iwldvm mac80211 iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_conexant sdhci_pci sdhci mmc_core iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm snd_hda_intel snd_hda_codec snd_hwdep pcspkr snd_pcm joydev serio_raw [1236894.694500] i2c_i801 sr_mod cdrom lpc_ich mfd_core shpchp snd_timer snd_page_alloc e1000e thinkpad_acpi ptp pps_core rfkill wmi snd battery ac soundcore tpm_tis tpm tpm_bios mperf sg autofs4 btrfs raid6_pq zlib_deflate xor libcrc32c sha256_ssse3 sha256_generic crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 i915 drm_kms_helper drm i2c_algo_bit button video thermal processor thermal_sys scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac scsi_dh dm_snapshot dm_mirror dm_region_hash dm_log dm_crypt dm_mod ata_generic ata_piix [1236894.694530] CPU: 1 PID: 597 Comm: irq/47-iwlwifi Tainted: G W 3.11.6-4-desktop #1 [1236894.694531] Hardware name: LENOVO 4239CTO/4239CTO, BIOS 8AET62WW (1.42 ) 01/24/2013 [1236894.694533] 0000000000000009 ffffffff815a9bd7 0000000000000000 ffffffff81050eb2 [1236894.694535] ffff8801b7456780 0000000000004322 0000000000000001 0000000000000006 [1236894.694537] 0000000000000000 ffffffff8151040d 00000000b7456780 ffff8801b7456780 [1236894.694539] Call Trace: [1236894.694548] [<ffffffff81004a18>] dump_trace+0x88/0x310 [1236894.694551] [<ffffffff81004d70>] show_stack_log_lvl+0xd0/0x1d0 [1236894.694554] [<ffffffff810061bc>] show_stack+0x1c/0x50 [1236894.694558] [<ffffffff815a9bd7>] dump_stack+0x50/0x89 [1236894.694562] [<ffffffff81050eb2>] warn_slowpath_common+0x72/0x90 [1236894.694565] [<ffffffff8151040d>] tcp_fastretrans_alert+0xb8d/0xc10 [1236894.694596] [<ffffffff81510fb2>] tcp_ack+0xa32/0x1000 [1236894.694601] [<ffffffff81511a11>] tcp_rcv_established+0x161/0x840 [1236894.694605] [<ffffffff8151a837>] tcp_v4_do_rcv+0xd7/0x300 [1236894.694608] [<ffffffff8151c9f0>] tcp_v4_rcv+0x660/0x7b0 [1236894.694612] [<ffffffff814f9dd6>] ip_local_deliver_finish+0xc6/0x210 [1236894.694617] [<ffffffff814c7757>] __netif_receive_skb_core+0x687/0x870 [1236894.694621] [<ffffffff814c79aa>] netif_receive_skb+0x1a/0x90 [1236894.694633] [<ffffffffa06ac4aa>] ieee80211_deliver_skb.isra.27+0x8a/0x200 [mac80211] [1236894.694665] [<ffffffffa06ad933>] ieee80211_rx_handlers+0xc13/0x20e0 [mac80211] [1236894.694690] [<ffffffffa06af24c>] ieee80211_prepare_and_rx_handle+0x44c/0xa60 [mac80211] [1236894.694715] [<ffffffffa06afb51>] ieee80211_rx+0x2f1/0x830 [mac80211] [1236894.694738] [<ffffffffa07675c0>] iwlagn_rx_reply_rx+0x3f0/0x700 [iwldvm] [1236894.694754] [<ffffffffa0654ee9>] iwl_pcie_irq_handler+0x849/0xc90 [iwlwifi] [1236894.694762] [<ffffffff810e34a6>] irq_thread_fn+0x16/0x40 [1236894.694764] [<ffffffff810e3a03>] irq_thread+0x113/0x140 [1236894.694768] [<ffffffff81071c0f>] kthread+0xaf/0xc0 [1236894.694772] [<ffffffff815b777c>] ret_from_fork+0x7c/0xb0 [1236894.694775] ---[ end trace 186bf02f3cb42296 ]--- [1237486.563618] ------------[ cut here ]------------ [1237486.563626] WARNING: CPU: 0 PID: 597 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.6/linux-3.11/net/ipv4/tcp_input.c:2711 tcp_fastretrans_alert+0xb8d/0xc10() [1237486.563627] Modules linked in: uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops ppdev parport_pc lp parport ufs qnx4 hfsplus hfs minix vfat msdos fat jfs xfs reiserfs tun snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device usb_storage fuse xt_tcpudp xt_pkttype xt_LOG xt_limit bnep bluetooth af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables tcp_westwood arc4 iwldvm mac80211 iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_conexant sdhci_pci sdhci mmc_core iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm snd_hda_intel snd_hda_codec snd_hwdep pcspkr snd_pcm joydev serio_raw [1237486.563660] i2c_i801 sr_mod cdrom lpc_ich mfd_core shpchp snd_timer snd_page_alloc e1000e thinkpad_acpi ptp pps_core rfkill wmi snd battery ac soundcore tpm_tis tpm tpm_bios mperf sg autofs4 btrfs raid6_pq zlib_deflate xor libcrc32c sha256_ssse3 sha256_generic crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 i915 drm_kms_helper drm i2c_algo_bit button video thermal processor thermal_sys scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac scsi_dh dm_snapshot dm_mirror dm_region_hash dm_log dm_crypt dm_mod ata_generic ata_piix [1237486.563686] CPU: 0 PID: 597 Comm: irq/47-iwlwifi Tainted: G W 3.11.6-4-desktop #1 [1237486.563687] Hardware name: LENOVO 4239CTO/4239CTO, BIOS 8AET62WW (1.42 ) 01/24/2013 [1237486.563689] 0000000000000009 ffffffff815a9bd7 0000000000000000 ffffffff81050eb2 [1237486.563691] ffff8800722b7100 0000000000004321 0000000000000001 0000000000000006 [1237486.563692] 0000000000000000 ffffffff8151040d 000000001264e000 ffff8800722b7100 [1237486.563694] Call Trace: [1237486.563703] [<ffffffff81004a18>] dump_trace+0x88/0x310 [1237486.563705] [<ffffffff81004d70>] show_stack_log_lvl+0xd0/0x1d0 [1237486.563707] [<ffffffff810061bc>] show_stack+0x1c/0x50 [1237486.563711] [<ffffffff815a9bd7>] dump_stack+0x50/0x89 [1237486.563716] [<ffffffff81050eb2>] warn_slowpath_common+0x72/0x90 [1237486.563719] [<ffffffff8151040d>] tcp_fastretrans_alert+0xb8d/0xc10 [1237486.563743] [<ffffffff81510fb2>] tcp_ack+0xa32/0x1000 [1237486.563747] [<ffffffff81511a11>] tcp_rcv_established+0x161/0x840 [1237486.563750] [<ffffffff8151a837>] tcp_v4_do_rcv+0xd7/0x300 [1237486.563753] [<ffffffff8151c9f0>] tcp_v4_rcv+0x660/0x7b0 [1237486.563757] [<ffffffff814f9dd6>] ip_local_deliver_finish+0xc6/0x210 [1237486.563761] [<ffffffff814c7757>] __netif_receive_skb_core+0x687/0x870 [1237486.563764] [<ffffffff814c79aa>] netif_receive_skb+0x1a/0x90 [1237486.563775] [<ffffffffa06ac4aa>] ieee80211_deliver_skb.isra.27+0x8a/0x200 [mac80211] [1237486.563803] [<ffffffffa06ad933>] ieee80211_rx_handlers+0xc13/0x20e0 [mac80211] [1237486.563823] [<ffffffffa06af24c>] ieee80211_prepare_and_rx_handle+0x44c/0xa60 [mac80211] [1237486.563843] [<ffffffffa06afb51>] ieee80211_rx+0x2f1/0x830 [mac80211] [1237486.563861] [<ffffffffa07675c0>] iwlagn_rx_reply_rx+0x3f0/0x700 [iwldvm] [1237486.563876] [<ffffffffa0654ee9>] iwl_pcie_irq_handler+0x849/0xc90 [iwlwifi] [1237486.563882] [<ffffffff810e34a6>] irq_thread_fn+0x16/0x40 [1237486.563884] [<ffffffff810e3a03>] irq_thread+0x113/0x140 [1237486.563887] [<ffffffff81071c0f>] kthread+0xaf/0xc0 [1237486.563890] [<ffffffff815b777c>] ret_from_fork+0x7c/0xb0 [1237486.563893] ---[ end trace 186bf02f3cb42297 ]--- [1240298.936220] ------------[ cut here ]------------ [1240298.936228] WARNING: CPU: 1 PID: 597 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.6/linux-3.11/net/ipv4/tcp_input.c:2711 tcp_fastretrans_alert+0xb8d/0xc10() [1240298.936229] Modules linked in: uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops ppdev parport_pc lp parport ufs qnx4 hfsplus hfs minix vfat msdos fat jfs xfs reiserfs tun snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device usb_storage fuse xt_tcpudp xt_pkttype xt_LOG xt_limit bnep bluetooth af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables tcp_westwood arc4 iwldvm mac80211 iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_conexant sdhci_pci sdhci mmc_core iwlwifi cfg80211 x86_pkg_temp_thermal coretemp kvm_intel kvm snd_hda_intel snd_hda_codec snd_hwdep pcspkr snd_pcm joydev serio_raw [1240298.936266] i2c_i801 sr_mod cdrom lpc_ich mfd_core shpchp snd_timer snd_page_alloc e1000e thinkpad_acpi ptp pps_core rfkill wmi snd battery ac soundcore tpm_tis tpm tpm_bios mperf sg autofs4 btrfs raid6_pq zlib_deflate xor libcrc32c sha256_ssse3 sha256_generic crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 i915 drm_kms_helper drm i2c_algo_bit button video thermal processor thermal_sys scsi_dh_emc scsi_dh_hp_sw scsi_dh_alua scsi_dh_rdac scsi_dh dm_snapshot dm_mirror dm_region_hash dm_log dm_crypt dm_mod ata_generic ata_piix [1240298.936297] CPU: 1 PID: 597 Comm: irq/47-iwlwifi Tainted: G W 3.11.6-4-desktop #1 [1240298.936298] Hardware name: LENOVO 4239CTO/4239CTO, BIOS 8AET62WW (1.42 ) 01/24/2013 [1240298.936300] 0000000000000009 ffffffff815a9bd7 0000000000000000 ffffffff81050eb2 [1240298.936302] ffff880179ee18c0 0000000000004322 0000000000000001 0000000000000006 [1240298.936304] 0000000000000000 ffffffff8151040d 0000000079ee18c0 ffff880179ee18c0 [1240298.936306] Call Trace: [1240298.936316] [<ffffffff81004a18>] dump_trace+0x88/0x310 [1240298.936319] [<ffffffff81004d70>] show_stack_log_lvl+0xd0/0x1d0 [1240298.936321] [<ffffffff810061bc>] show_stack+0x1c/0x50 [1240298.936326] [<ffffffff815a9bd7>] dump_stack+0x50/0x89 [1240298.936331] [<ffffffff81050eb2>] warn_slowpath_common+0x72/0x90 [1240298.936334] [<ffffffff8151040d>] tcp_fastretrans_alert+0xb8d/0xc10 [1240298.936365] [<ffffffff81510fb2>] tcp_ack+0xa32/0x1000 [1240298.936370] [<ffffffff81511a11>] tcp_rcv_established+0x161/0x840 [1240298.936374] [<ffffffff8151a837>] tcp_v4_do_rcv+0xd7/0x300 [1240298.936377] [<ffffffff8151c9f0>] tcp_v4_rcv+0x660/0x7b0 [1240298.936381] [<ffffffff814f9dd6>] ip_local_deliver_finish+0xc6/0x210 [1240298.936386] [<ffffffff814c7757>] __netif_receive_skb_core+0x687/0x870 [1240298.936390] [<ffffffff814c79aa>] netif_receive_skb+0x1a/0x90 [1240298.936403] [<ffffffffa06ac4aa>] ieee80211_deliver_skb.isra.27+0x8a/0x200 [mac80211] [1240298.936436] [<ffffffffa06ad933>] ieee80211_rx_handlers+0xc13/0x20e0 [mac80211] [1240298.936461] [<ffffffffa06af24c>] ieee80211_prepare_and_rx_handle+0x44c/0xa60 [mac80211] [1240298.936486] [<ffffffffa06afb51>] ieee80211_rx+0x2f1/0x830 [mac80211] [1240298.936508] [<ffffffffa07675c0>] iwlagn_rx_reply_rx+0x3f0/0x700 [iwldvm] [1240298.936525] [<ffffffffa0654ee9>] iwl_pcie_irq_handler+0x849/0xc90 [iwlwifi] [1240298.936532] [<ffffffff810e34a6>] irq_thread_fn+0x16/0x40 [1240298.936535] [<ffffffff810e3a03>] irq_thread+0x113/0x140 [1240298.936539] [<ffffffff81071c0f>] kthread+0xaf/0xc0 [1240298.936542] [<ffffffff815b777c>] ret_from_fork+0x7c/0xb0 [1240298.936545] ---[ end trace 186bf02f3cb42298 ]--- Reproducible: Didn't try Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.