Subject: Re: network traffic stop with 2.6.29 after ftp put

From: Eric Dumazet <[email-masked]>
Date: Tue, 24 Mar 2009 12:22:19 +0100

Marco Berizzi a écrit :
> Marco Berizzi wrote:
> 
>> Hi Folks,
>>
>> Just finished compiling linux 2.6.29 on
>> Slackware 12.2
>> Linux 2.6.29 stop sending/receiving any
>> kind of packets (ipv4 on 3c59x) after less
>> then 20MB of ftp/mput.
>> Running tcpdump on the eth0 doesn't catch
>> any traffic. I only see the arp requests.
>> Hopefully I can reproduce the problem :-)
> 
> me again.
> Linux doesn't respond even to 127.0.0.1 :-((
> 
> root@Calimero:~# ping 172.16.1.247
> PING 172.16.1.247 (172.16.1.247) 56(84) bytes of data.
> ^C
> --- 172.16.1.247 ping statistics ---
> 4 packets transmitted, 0 received, 100% packet loss, time 3010ms
> 
> root@Calimero:~# ping 127.0.0.1
> PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
> ^C
> --- 127.0.0.1 ping statistics ---
> 8 packets transmitted, 0 received, 100% packet loss, time 7023ms
> 
> root@Calimero:~# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:01:02:ad:db:82
>           inet addr:172.16.1.247  Bcast:172.16.1.255  Mask:255.255.254.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:14638 errors:0 dropped:0 overruns:1 frame:0
>           TX packets:1160 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:3087263 (2.9 MiB)  TX bytes:117736 (114.9 KiB)
>           Interrupt:5
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:18 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:18 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:6219 (6.0 KiB)  TX bytes:6219 (6.0 KiB)
> 
> BTW this is the output from lsmod:
> 
> root@Calimero:~# lsmod
> Module                  Size  Used by
> sd_mod                 20272  0
> scsi_mod               76900  1 sd_mod
> ide_cd_mod             24944  0
> cdrom                  28856  1 ide_cd_mod
> floppy                 44836  0
> i810                   14568  1
> drm                   117996  2 i810
> i2c_core               17644  1 drm
> snd_seq_oss            24232  0
> snd_seq_midi_event      5184  1 snd_seq_oss
> snd_seq                38396  4 snd_seq_oss,snd_seq_midi_event
> snd_seq_device          5404  2 snd_seq_oss,snd_seq
> snd_pcm_oss            30556  0
> snd_mixer_oss          11876  1 snd_pcm_oss
> snd_intel8x0           25580  3
> snd_ac97_codec         86612  1 snd_intel8x0
> ac97_bus                1264  1 snd_ac97_codec
> snd_pcm                50756  4 snd_pcm_oss,snd_intel8x0,snd_ac97_codec
> snd_timer              16372  3 snd_seq,snd_pcm
> snd                    40672  13 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
> soundcore               5172  1 snd
> snd_page_alloc          7048  2 snd_intel8x0,snd_pcm
> usbhid                 13604  0
> hid                    28164  1 usbhid
> uhci_hcd               18416  0
> usbcore               108128  3 usbhid,uhci_hcd
> intel_agp              22500  1
> 3c59x                  34612  0
> mii                     3860  1 3c59x
> agpgart                25344  3 drm,intel_agp

Could you please send us :

iptables -nvL

netstat -s

cat /proc/slabinfo