Package: linux-2.6
Version: 2.6.32-41squeeze2
Severity: important
Tags: upstream
I had this problem time to time, but since the last(I think)
kernel update the things are getting worse.
At the begining I was thinking that some application is not responding
so this may cause the slow system speed.
Later I checked the log and I saw that the kernel log is full of
noise floor calibration messages that keep popping every 2 seconds.
This causes some package dropping and super slow computer speed.
It makes the computer almost unusable... I mean it gets stucked
at every 5 seconds...
-- Package-specific info:
** Version:
Linux version 2.6.32-5-amd64 (Debian 2.6.32-41squeeze2) (dannf@debian.org) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Thu Mar 22 17:26:33 UTC 2012
** Model information
sys_vendor: ASUSTeK Computer Inc.
product_name: F5N
product_version: 1.0
chassis_vendor: ASUSTeK Computer Inc.
chassis_version:
bios_vendor: American Megatrends Inc.
bios_version: 207
board_vendor: ASUSTeK Computer Inc.
board_name: F5N
board_version: 1.0
** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
*** Protocol statistics:
Ip:
6613868 total packets received
2 with invalid addresses
0 forwarded
0 incoming packets discarded
6613674 incoming packets delivered
9631772 requests sent out
32 outgoing packets dropped
146 fragments dropped after timeout
192 reassemblies required
146 packet reassembles failed
Icmp:
17043 ICMP messages received
16609 input ICMP message failed.
ICMP input histogram:
destination unreachable: 16993
395 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 249
time exceeded: 146
IcmpMsg:
InType3: 16993
OutType3: 249
OutType11: 146
Tcp:
558524 active connections openings
1662 passive connection openings
234104 failed connection attempts
11077 connection resets received
23 connections established
6550990 segments received
8289508 segments send out
1277890 segments retransmited
37 bad segments received.
4175 resets sent
Udp:
42526 packets received
174 packets to unknown port received.
0 packet receive errors
63188 packets sent
UdpLite:
TcpExt:
95 packets pruned from receive queue because of socket buffer overrun
17560 TCP sockets finished time wait in fast timer
21 time wait sockets recycled by time stamp
624 packets rejects in established connections because of timestamp
150505 delayed acks sent
137 delayed acks further delayed because of locked socket
Quick ack mode was activated 33031 times
1662 packets directly queued to recvmsg prequeue.
44874 bytes directly received in process context from prequeue
1587506 packet headers predicted
2970584 acknowledgments not containing data payload received
937297 predicted acknowledgments
128 times recovered from packet loss due to fast retransmit
111917 times recovered from packet loss by selective acknowledgements
2 bad SACK blocks received
Detected reordering 16 times using FACK
Detected reordering 182 times using SACK
Detected reordering 155 times using time stamp
142 congestion windows fully recovered without slow start
303 congestion windows partially recovered using Hoe heuristic
52 congestion windows recovered without slow start by DSACK
24870 congestion windows recovered without slow start after partial ack
185217 TCP data loss events
TCPLostRetransmit: 9889
27 timeouts after reno fast retransmit
25123 timeouts after SACK recovery
16775 timeouts in loss state
256193 fast retransmits
3550 forward retransmits
101296 retransmits in slow start
451165 other TCP timeouts
71 classic Reno fast retransmits failed
13768 SACK retransmits failed
3250 packets collapsed in receive queue due to low socket buffer
41611 DSACKs sent for old packets
71 DSACKs sent for out of order packets
15051 DSACKs received
1509 DSACKs for out of order packets received
1039 connections reset due to unexpected data
339 connections reset due to early user close
206892 connections aborted due to timeout
TCPSACKDiscard: 134
TCPDSACKIgnoredOld: 6002
TCPDSACKIgnoredNoUndo: 7664
TCPSpuriousRTOs: 352
TCPSackShiftFallback: 1280654
IpExt:
InMcastPkts: 1635
OutMcastPkts: 849
InBcastPkts: 1377
InOctets: -1706814866
OutOctets: 243206815
InMcastOctets: 55838
OutMcastOctets: 31349
InBcastOctets: 456388
05:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR5001 Wireless Network Adapter [168c:001c] (rev 01)
Subsystem: AzureWave AR5007EG 802.11bg Wi-Fi mini PCI express card [1a3b:1026]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at febf0000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: ath5k
** USB devices:
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 003: ID 174f:6a31 Syntek Web Cam - Asus A8J, F3S, F5R, VX2S, V1S
Bus 001 Device 002: ID 0bda:0116 Realtek Semiconductor Corp. Mass Storage Device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core)
Locale: LANG=bg_BG.utf8, LC_CTYPE=bg_BG.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages linux-image-2.6.32-5-amd64 depends on:
ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy
ii initramfs-tools [linux 0.98.8 tools for generating an initramfs
ii linux-base 2.6.32-41squeeze2 Linux image base package
ii module-init-tools 3.12-2 tools for managing Linux kernel mo
Versions of packages linux-image-2.6.32-5-amd64 recommends:
pn firmware-linux-free <none> (no description available)
Versions of packages linux-image-2.6.32-5-amd64 suggests:
pn grub | lilo <none> (no description available)
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)
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
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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On Tue, 2012-04-03 at 03:34 +0300, Иван Андонов wrote:
> Package: linux-2.6
> Version: 2.6.32-41squeeze2
> Severity: important
> Tags: upstream
>
> I had this problem time to time, but since the last(I think)
> kernel update the things are getting worse.
[...]
There have been no recent changes to this driver in squeeze. Certainly
there appears to be a bug, but if so then it's not a new one. Probably
there has been a change in the wireless networks near you that triggers
this.
Ben.
--
Ben Hutchings
Reality is just a crutch for people who can't handle science fiction.