Bug#597075: linux-image-2.6.32-5-amd64: The amount of times connect() function resends SYN is not equal to net.ipv4.tcp_syn_retries.
Package: linux-2.6
Version: 2.6.32-21
Severity: normal
connect() function that is hanging because SYNACK is not recieved resends
SYNs only 2 times by default. But net.ipv4.tcp_syn_retries by default is
equal to 5. If net.ipv4.tcp_syn_retries is equal to 6 then connect()
resends SYN 3 times. The function getsockopt(IPPROTO_TCP, TCP_SYNCNT)
returned the same value as net.ipv4.tcp_syn_retries.
-- Package-specific info:
** Version:
Linux version 2.6.32-5-amd64 (Debian 2.6.32-21) (ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-2) ) #1 SMP Wed Aug 25 15:39:44 UTC 2010
** Kernel log:
[75498.137521] sky2 eth2: Link is down.
[75498.160391] br0: port 1(eth2) entering disabled state
[75499.832642] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[75499.833037] br0: port 1(eth2) entering forwarding state
[75509.917468] sky2 eth2: Link is down.
[75509.928388] br0: port 1(eth2) entering disabled state
[75511.665631] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[75511.666043] br0: port 1(eth2) entering forwarding state
[75514.961507] sky2 eth2: Link is down.
[75514.972395] br0: port 1(eth2) entering disabled state
[75516.642555] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[75516.642952] br0: port 1(eth2) entering forwarding state
[79832.008036] sky2 eth2: Link is down.
[79832.020411] br0: port 1(eth2) entering disabled state
[79835.325751] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[79835.326147] br0: port 1(eth2) entering forwarding state
[79835.754850] sky2 eth2: Link is down.
[79836.340472] br0: port 1(eth2) entering disabled state
[79837.411896] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[79837.412426] br0: port 1(eth2) entering forwarding state
[80045.678841] sky2 eth2: Link is down.
[80045.692443] br0: port 1(eth2) entering disabled state
[80047.511940] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80047.512332] br0: port 1(eth2) entering forwarding state
[80057.456285] sky2 eth2: Link is down.
[80057.464931] br0: port 1(eth2) entering disabled state
[80059.143111] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80059.143538] br0: port 1(eth2) entering forwarding state
[80167.405953] sky2 eth2: Link is down.
[80167.416424] br0: port 1(eth2) entering disabled state
[80169.091461] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80169.091851] br0: port 1(eth2) entering forwarding state
[80198.991249] sky2 eth2: Link is down.
[80199.000936] br0: port 1(eth2) entering disabled state
[80200.929114] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80200.929506] br0: port 1(eth2) entering forwarding state
[80210.761441] sky2 eth2: Link is down.
[80210.772931] br0: port 1(eth2) entering disabled state
[80212.505220] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80212.505612] br0: port 1(eth2) entering forwarding state
[80376.510530] sky2 eth2: Link is down.
[80376.524422] br0: port 1(eth2) entering disabled state
[80378.206144] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80378.206536] br0: port 1(eth2) entering forwarding state
[80408.095830] sky2 eth2: Link is down.
[80408.108987] br0: port 1(eth2) entering disabled state
[80409.731843] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80409.732245] br0: port 1(eth2) entering forwarding state
[80419.855446] sky2 eth2: Link is down.
[80419.868437] br0: port 1(eth2) entering disabled state
[80421.638206] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80421.638597] br0: port 1(eth2) entering forwarding state
[80487.373675] sky2 eth2: Link is down.
[80487.384438] br0: port 1(eth2) entering disabled state
[80489.040318] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80489.040732] br0: port 1(eth2) entering forwarding state
[80518.948878] sky2 eth2: Link is down.
[80518.960925] br0: port 1(eth2) entering disabled state
[80520.859592] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80520.859983] br0: port 1(eth2) entering forwarding state
[80530.721367] sky2 eth2: Link is down.
[80530.732935] br0: port 1(eth2) entering disabled state
[80532.454078] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80532.454485] br0: port 1(eth2) entering forwarding state
[80634.708853] sky2 eth2: Link is down.
[80634.716985] br0: port 1(eth2) entering disabled state
[80636.392888] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80636.393281] br0: port 1(eth2) entering forwarding state
[80666.303817] sky2 eth2: Link is down.
[80666.312939] br0: port 1(eth2) entering disabled state
[80668.120414] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80668.120808] br0: port 1(eth2) entering forwarding state
[80678.086545] sky2 eth2: Link is down.
[80678.096938] br0: port 1(eth2) entering disabled state
[80679.861648] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[80679.862038] br0: port 1(eth2) entering forwarding state
[80998.468855] sky2 eth2: Link is down.
[80998.484449] br0: port 1(eth2) entering disabled state
[81057.995180] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81057.995575] br0: port 1(eth2) entering forwarding state
[81135.126046] sky2 eth2: Link is down.
[81135.136445] br0: port 1(eth2) entering disabled state
[81136.894742] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81136.895135] br0: port 1(eth2) entering forwarding state
[81140.633636] sky2 eth2: Link is down.
[81140.644935] br0: port 1(eth2) entering disabled state
[81142.283156] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81142.283548] br0: port 1(eth2) entering forwarding state
[81143.603064] sky2 eth2: Link is down.
[81143.616462] br0: port 1(eth2) entering disabled state
[81145.401905] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81145.402295] br0: port 1(eth2) entering forwarding state
[81214.792110] sky2 eth2: Link is down.
[81214.800946] br0: port 1(eth2) entering disabled state
[81217.980064] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81217.980461] br0: port 1(eth2) entering forwarding state
[81218.397545] sky2 eth2: Link is down.
[81218.988897] br0: port 1(eth2) entering disabled state
[81220.100313] sky2 eth2: Link is up at 100 Mbps, full duplex, flow control both
[81220.100705] br0: port 1(eth2) entering forwarding state
** Model information
sys_vendor: System manufacturer
product_name: P5Q Premium
product_version: System Version
chassis_vendor: Chassis Manufacture
chassis_version: Chassis Version
bios_vendor: American Megatrends Inc.
bios_version: 1306
board_vendor: ASUSTeK Computer INC.
board_name: P5Q Premium
board_version: Rev 1.xx
0e:04.0 Ethernet controller [0200]: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 [8086:1229] (rev 05)
Subsystem: Intel Corporation EtherExpress PRO/100+ Dual Port Adapter [8086:10f0]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at befff000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at ec00 [size=32]
Region 2: Memory at feb00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at fea00000 [disabled] [size=1M]
Capabilities: <access denied>
Kernel driver in use: e100
0e:05.0 Ethernet controller [0200]: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 [8086:1229] (rev 05)
Subsystem: Intel Corporation EtherExpress PRO/100+ Dual Port Adapter [8086:10f0]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at beffe000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at e880 [size=32]
Region 2: Memory at fe900000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at fe800000 [disabled] [size=1M]
Capabilities: <access denied>
Kernel driver in use: e100
** USB devices:
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 06da:0003 Phoenixtec Power Co., Ltd
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0409:005a NEC Corp. HighSpeed Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Versions of packages linux-image-2.6.32-5-amd64 depends on:
ii debconf [debconf-2.0] 1.5.35 Debian configuration management sy
ii initramfs-tools [linux-initra 0.98.2 tools for generating an initramfs
ii linux-base 2.6.32-21 Linux image base package
ii module-init-tools 3.12-1 tools for managing Linux kernel mo
Versions of packages linux-image-2.6.32-5-amd64 recommends:
ii firmware-linux-free 2.6.32-21 Binary firmware for various driver
ii libc6-i686 2.11.2-5 Embedded GNU C Library: Shared lib
Versions of packages linux-image-2.6.32-5-amd64 suggests:
ii grub 0.97-63 GRand Unified Bootloader (dummy pa
pn linux-doc-2.6.32 <none> (no description available)
Versions of packages linux-image-2.6.32-5-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
ii firmware-linux 0.26 Binary firmware for various driver
ii firmware-linux-nonfree 0.26 Binary firmware for various driver
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)
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