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<DIV>Hi Gaofeng,</DIV>
<DIV>It seems that I've got the answer.</DIV>
<DIV>In manual page about setns, it said that library support was added to
glibc</DIV>
<DIV>in version 2.14 while my libc version is 2.13.</DIV>
<DIV> </DIV>
<DIV>Thanks for help anyway.</DIV>
<DIV> </DIV>
<DIV>On 2013-12-09 13:22 , <A
href="mailto:hzguanqiang@corp.netease.com">hzguanqiang@corp.netease.com</A> wrote:</DIV>
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<DIV>On 2013-12-09 13:18 , <A
href="mailto:gaofeng@cn.fujitsu.com">Gao feng</A> wrote:</DIV>
<DIV>
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<DIV>On 12/09/2013 01:06 PM, hzguanqiang@corp.netease.com
wrote:</DIV>
<DIV>> Hi experts,</DIV>
<DIV>> </DIV>
<DIV>> When I test lxc container with lxc-enter-namespace
command, It reported an error as</DIV>
<DIV>> following:</DIV>
<DIV>> root@debian:~/github/libvirt# vir lxc-enter-namespace
lxc --noseclabel /bin/df -hl</DIV>
<DIV>> error: Cannot get namespaces for 3145: Function not
implemented</DIV>
<DIV>> </DIV>
<DIV>> It seems that setns is not supported by my
kernel.</DIV>
<DIV>> </DIV>
<DIV>> But from the following info, It seemed the reason is
just libvirt/autoconf doesn't</DIV>
<DIV>> recgonise setns.</DIV>
<DIV>> root@debian:~/github/libvirt# grep setns
/proc/kallsyms</DIV>
<DIV>> ffffffff8105b78b T SyS_setns</DIV>
<DIV>> ffffffff8105b78b T sys_setns</DIV>
<DIV>> root@debian:~/github/libvirt# ./configure | grep
setns</DIV>
<DIV>> checking for setns... no</DIV>
<DIV>> </DIV>
<DIV>> What the problem really is ? How can I fix this
problem?</DIV>
<DIV> </DIV>
<DIV>What's the result of grep -R "setns" /usr/include/*</DIV>
<DIV> </DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></DIV>
<DIV>Hi Gaofeng,</DIV>
<DIV>The result you want is as following:</DIV>
<DIV> </DIV>
<DIV>
<DIV>root@debian:~/github/libvirt# grep -R "setns" /usr/include/*</DIV>
<DIV>/usr/include/asm-generic/unistd.h:#define __NR_setns 268</DIV>
<DIV>/usr/include/asm-generic/unistd.h:__SYSCALL(__NR_setns,
sys_setns)</DIV>
<DIV>/usr/include/x86_64-linux-gnu/bits/syscall.h:#define SYS_setns
__NR_setns</DIV>
<DIV>/usr/include/x86_64-linux-gnu/asm/unistd_64.h:#define
__NR_setns
308</DIV>
<DIV>/usr/include/x86_64-linux-gnu/asm/unistd_64.h:__SYSCALL(__NR_setns,
sys_setns)</DIV>
<DIV>/usr/include/x86_64-linux-gnu/asm/unistd_32.h:#define
__NR_setns
346</DIV>
<DIV> </DIV></DIV>
<DIV><SPAN>
<DIV style="FONT-FAMILY: verdana; FONT-SIZE: 10pt">
<DIV>------------------ <BR>Best
regards!<BR>GuanQiang</DIV></DIV></SPAN></DIV>
<DIV>13:21:12</DIV></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></DIV>
<DIV> </DIV>
<DIV><SPAN>
<DIV style="FONT-FAMILY: verdana; FONT-SIZE: 10pt">
<DIV>------------------ <BR>Best
regards!<BR>GuanQiang</DIV></DIV></SPAN></DIV>
<DIV>14:25:56</DIV></BODY></HTML>