Hello,
Today i tried to rebuild ipset...
I have a version of ipset builded on 16 Jan 2012 probably with gcc 4.6.
I will name it ipset-1 in this mail.
Today I builded a new binary of the same source ipset 6.11 compiled with
the same options. This binary is built with gcc 4.7. It will be named as
ipset-1.1
I also not the kernel ABI is different
# readelf -n ipset-1*|grep -e Linux -e File
File: ipset-1
OS: Linux, ABI: 2.6.27
File: ipset-1.1
OS: Linux, ABI: 2.6.32
My host is an i686 archlinux system with 3.3 kernel
# uname -a
Linux archibal 3.3.2-1-ARCH #1 SMP PREEMPT Sat Apr 14 10:08:43 UTC 2012
i686 Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz GenuineIntel GNU/Linux
When i try to restore saved sets, i got a kernel panic with ipset-1.1
but not with ipset-1.
# ./ipset-1 restore < ipset.conf.0
# ./ipset-1 x
# ./ipset-1.1 restore < ipset.conf.0
Write failed: Broken pipe
I attached the kernel panic dump from netconsole, the both binary and
the config file i load.
I this see 2 issues:
Firstly, i suppose kernel must not panic because i run ipset.
Secondly, i wondering if gcc is cause of the bad working of the new ipset?
I also tested with an x86_64 host and ipset is only broken. No kernel panic.
# uname -a
Linux archipel 3.3.2-1-ARCH #1 SMP PREEMPT Sat Apr 14 09:48:37 CEST 2012
x86_64 Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz GenuineIntel GNU/Linux
# ipset restore < ipset.conf.0
ipset v6.11: Hash is full, cannot add more elements
# ipset list
Name: foo
Type: hash:ip,port,net
Header: family inet hashsize 64 maxelem 0
Size in memory: 1408
References: 0
Members:
--
Sébastien Luttringer (www.seblu.net)
create foo hash:ip,port,net family inet hashsize 1024 maxelem 65536 add foo 192.168.0.1,tcp:0,10.0.0.0/24 add foo 192.168.0.2,tcp:0,10.1.0.0/16
Attachment:
ipset-1.1.gz
Description: GNU Zip compressed data
Attachment:
ipset-1.gz
Description: GNU Zip compressed data
Attachment:
kernel-panic-3.3.2-1-ARCH-ipset-6.11.gz
Description: GNU Zip compressed data
