Reply at Bottom:
On 8/12/06, Robinson Tiemuqinke <hahaha_30k@xxxxxxxxx> wrote:
Hi,
newest stock FC4 kernel has similar problem. any one
can explain whether it is a big problem or not? any
one see the same problems on FC5? why the kernel
2.6.15, 2.6.16, 2.6.17 modules reports the 'stat: No
such file or directory' problem?
Thanks a lot.
[root@node100-devel ~]# uname -a
Linux node100-devel.chineseba.com 2.6.17-1.2142_FC4 #1
Tue Jul 11 22:41:14 EDT 2006 i686 i686 i386 GNU/Linux
[root@node100-devel ~]# lsof | grep -i 'no such' |head
-20
init 1 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
udevd 601 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
syslogd 1557 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
klogd 1559 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
named 1577 named mem REG 0,0
0 [vdso] (stat: No such file or
directory)
portmap 1593 rpc mem REG 0,0
0 [vdso] (stat: No such file or
directory)
rpc.statd 1611 rpcuser mem REG 0,0
0 [vdso] (stat: No such file or
directory)
cfenvd 1622 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
auditd 1638 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
rpc.idmap 1665 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
hcid 1678 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
sdpd 1680 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
automount 1878 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
acpid 1890 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
sshd 1898 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
xinetd 1907 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
ntpd 1926 ntp mem REG 0,0
0 [vdso] (stat: No such file or
directory)
vsftpd 1935 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
mysqld_sa 1996 root mem REG 0,0
0 [vdso] (stat: No such file or
directory)
mysqld 2029 mysql mem REG 0,0
0 [vdso] (stat: No such file or
directory)
[root@node100-devel ~]#
--- Robinson Tiemuqinke <hahaha_30k@xxxxxxxxx> wrote:
> Hi,
>
> months ago I compiled 2.6.15/2.6.16 kernel on my
> FC4
> boxes. the vanila kernels (2.6.15.6 & 2.6.16.23) are
> directly downloaded from www.kernel.org and compiled
> without any changes.
>
> kernels runs pretty smooth and in fact no other
> engineers reports any problems with the kernels, but
> today when I ran "lsof" command I found there are
> the
> following problematic entries related to kernel,
> please help.
>
> ...
> init 1 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> udevd 746 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> syslogd 1901 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> klogd 1903 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> portmap 1918 rpc mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> rpc.statd 1936 rpcuser mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> rpc.idmap 1960 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> acpid 2033 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> xinetd 2063 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> ntpd 2082 ntp mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> rpc.rquot 2100 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> rpc.mount 2187 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> amd 2205 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> nrpe 2220 nagios mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> crond 2259 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> atd 2275 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> dbus-daem 2283 dbus mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> hald 2291 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory)
> hald-addo 2296 root mem REG 0,0
>
> 0 [heap] (stat: No such file or directory
> ...
>
>
>
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Hi Robinson!
Interesting issue. A Google search on "vdso" and then "vdso or
linux-gate" yeilded:
http://www.trilithium.com/johan/2005/08/linux-gate/
(the following was not the top Google but was the "push". It is a bit
above my head and I did not have the time to follow the thread which I
am suspicious is dealing with your issue.)
http://lkml.org/lkml/2006/7/27/357
(this is a tutorial on the kernel issue involved)
http://manugarg.googlepages.com/systemcallinlinux2_6.html
Good Hunting!
Tod
