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Date: Tue, 24 Mar 2009 12:30:21 +0100
From: "Marco Berizzi" <pupilla@...mail.com>
To: "Eric Dumazet" <dada1@...mosbay.com>
Cc: <netdev@...r.kernel.org>
Subject: Re: network traffic stop with 2.6.29 after ftp put
Eric Dumazet wrote:
> Could you please send us :
just an update: this bug is not related to
ftp: it appears to me that after some
traffic (imap, http) linux stop receiving
any packets.
> iptables -nvL
there isn't any iptables rules
(there isn't even the iptables package
installed on my box)
> netstat -s
Ip:
4808 total packets received
28 with invalid addresses
0 forwarded
0 incoming packets discarded
4685 incoming packets delivered
1226 requests sent out
Icmp:
0 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
68 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 47
echo request: 21
IcmpMsg:
OutType3: 47
OutType8: 21
Tcp:
21 active connections openings
0 passive connection openings
0 failed connection attempts
0 connection resets received
0 connections established
1490 segments received
1104 segments send out
30 segments retransmited
0 bad segments received.
9 resets sent
Udp:
4 packets received
0 packets to unknown port received.
0 packet receive errors
24 packets sent
UdpLite:
TcpExt:
10 TCP sockets finished time wait in fast timer
27 delayed acks sent
1240 packet headers predicted
58 acknowledgments not containing data payload received
5 predicted acknowledgments
1 congestion windows recovered without slow start after partial ack
5 other TCP timeouts
4 connections aborted due to timeout
IpExt:
InBcastPkts: 3191
> cat /proc/slabinfo
slabinfo - version: 2.1
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
isofs_inode_cache 0 0 320 12 1 : tunables 0 0 0 : slabdata 0 0 0
fat_inode_cache 23 23 344 23 2 : tunables 0 0 0 : slabdata 1 1 0
fat_cache 170 170 24 170 1 : tunables 0 0 0 : slabdata 1 1 0
sgpool-128 12 12 2560 12 8 : tunables 0 0 0 : slabdata 1 1 0
sgpool-64 12 12 1280 12 4 : tunables 0 0 0 : slabdata 1 1 0
sgpool-32 12 12 640 12 2 : tunables 0 0 0 : slabdata 1 1 0
sgpool-16 12 12 320 12 1 : tunables 0 0 0 : slabdata 1 1 0
flow_cache 0 0 80 51 1 : tunables 0 0 0 : slabdata 0 0 0
ext2_inode_cache 8700 8700 408 10 1 : tunables 0 0 0 : slabdata 870 870 0
kiocb 25 25 160 25 1 : tunables 0 0 0 : slabdata 1 1 0
shmem_inode_cache 10 10 384 10 1 : tunables 0 0 0 : slabdata 1 1 0
posix_timers_cache 0 0 104 39 1 : tunables 0 0 0 : slabdata 0 0 0
UNIX 108 120 384 10 1 : tunables 0 0 0 : slabdata 12 12 0
UDP-Lite 0 0 480 8 1 : tunables 0 0 0 : slabdata 0 0 0
xfrm_dst_cache 0 0 288 14 1 : tunables 0 0 0 : slabdata 0 0 0
RAW 9 9 448 9 1 : tunables 0 0 0 : slabdata 1 1 0
UDP 8 8 480 8 1 : tunables 0 0 0 : slabdata 1 1 0
tw_sock_TCP 32 32 128 32 1 : tunables 0 0 0 : slabdata 1 1 0
TCP 15 15 1056 15 4 : tunables 0 0 0 : slabdata 1 1 0
blkdev_queue 25 26 1200 13 4 : tunables 0 0 0 : slabdata 2 2 0
blkdev_requests 38 54 216 18 1 : tunables 0 0 0 : slabdata 3 3 0
biovec-256 10 10 3072 10 8 : tunables 0 0 0 : slabdata 1 1 0
biovec-128 0 0 1536 10 4 : tunables 0 0 0 : slabdata 0 0 0
biovec-64 10 10 768 10 2 : tunables 0 0 0 : slabdata 1 1 0
sock_inode_cache 124 132 352 11 1 : tunables 0 0 0 : slabdata 12 12 0
skbuff_fclone_cache 11 11 352 11 1 : tunables 0 0 0 : slabdata 1 1 0
file_lock_cache 39 39 104 39 1 : tunables 0 0 0 : slabdata 1 1 0
Acpi-Operand 675 714 40 102 1 : tunables 0 0 0 : slabdata 7 7 0
Acpi-Namespace 510 510 24 170 1 : tunables 0 0 0 : slabdata 3 3 0
proc_inode_cache 130 130 312 13 1 : tunables 0 0 0 : slabdata 10 10 0
sigqueue 28 28 144 28 1 : tunables 0 0 0 : slabdata 1 1 0
radix_tree_node 3626 3640 296 13 1 : tunables 0 0 0 : slabdata 280 280 0
bdev_cache 19 19 416 19 2 : tunables 0 0 0 : slabdata 1 1 0
sysfs_dir_cache 5864 5865 48 85 1 : tunables 0 0 0 : slabdata 69 69 0
inode_cache 113 126 288 14 1 : tunables 0 0 0 : slabdata 9 9 0
dentry 13469 13472 128 32 1 : tunables 0 0 0 : slabdata 421 421 0
buffer_head 13067 13067 56 73 1 : tunables 0 0 0 : slabdata 179 179 0
vm_area_struct 3893 4462 88 46 1 : tunables 0 0 0 : slabdata 97 97 0
mm_struct 54 57 416 19 2 : tunables 0 0 0 : slabdata 3 3 0
signal_cache 60 64 480 8 1 : tunables 0 0 0 : slabdata 8 8 0
sighand_cache 65 72 1312 12 4 : tunables 0 0 0 : slabdata 6 6 0
task_struct 67 90 800 10 2 : tunables 0 0 0 : slabdata 9 9 0
anon_vma 951 1280 16 256 1 : tunables 0 0 0 : slabdata 5 5 0
idr_layer_cache 177 182 152 26 1 : tunables 0 0 0 : slabdata 7 7 0
kmalloc-4096 17 24 4096 8 8 : tunables 0 0 0 : slabdata 3 3 0
kmalloc-2048 126 136 2048 8 4 : tunables 0 0 0 : slabdata 17 17 0
kmalloc-1024 178 192 1024 8 2 : tunables 0 0 0 : slabdata 24 24 0
kmalloc-512 1134 1152 512 8 1 : tunables 0 0 0 : slabdata 144 144 0
kmalloc-256 175 208 256 16 1 : tunables 0 0 0 : slabdata 13 13 0
kmalloc-128 1171 1344 128 32 1 : tunables 0 0 0 : slabdata 42 42 0
kmalloc-64 2011 2048 64 64 1 : tunables 0 0 0 : slabdata 32 32 0
kmalloc-32 974 1024 32 128 1 : tunables 0 0 0 : slabdata 8 8 0
kmalloc-16 1249 1280 16 256 1 : tunables 0 0 0 : slabdata 5 5 0
kmalloc-8 2400 2560 8 512 1 : tunables 0 0 0 : slabdata 5 5 0
kmalloc-192 1222 1260 192 21 1 : tunables 0 0 0 : slabdata 60 60 0
kmalloc-96 398 630 96 42 1 : tunables 0 0 0 : slabdata 15 15 0
--
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