NRPE on IA64-linux

[Andreas Ericsson]

Taiji Otsuki wrote:
> Hi all,
> 
> Is there anyone who has experienced successfuly installed nrpe daemon
> in IA64-Linux(Itanium2) ? The OS is Redhat Enterprise Linux AS3.0.
> After I complied and installed the nrpe daemon first with 
> --enable-commands-args option, I started  nrpe daemon like below. 
> -------------------------------------
>  ./configure --enable-commands-args
>  make all
>  /etc/rc.d/init.d/nrpe start
> -------------------------------------
> The nagios server(IA32-Linux:RHL8.0) and nrpe client(IA64-Linux)
> keep connection and looks fine. 
> 
> 
> However, lot's of same messages appeared in the IA-64's
> /var/log/messages,
> ---------------------------------------------------------------
>  kernel : IA32 syscall #252 issued, maybe we should implement it.
> ---------------------------------------------------------------

Syscall #252 is the asm function exit_group (which is undocumented but 
called when a process group leader is created or exits).
To get around this, you either need to update your kernel to one that 
better supports the 64-bit architecture (2.6.x is working hard on this) 
  or modify nrpe to utilize pthread_create() instead of fork().

If you want to check the kernel for syscalls, you can have a look at 
/usr/include/asm/unistd.h, or do 'man syscalls' (neither is very 
informative).

If you go with the latter solution, you will need the posix-threads 
library (-lpthread), which should be included by default with any linux 
distro worth mentioning. NRPE is actually pretty nicely suited to do 
this (since it handles everything in handle_connection(), as opposed to 
serializing a bunch of function calls).

> when I stopped nrpe daemon, above messages disappeared.
> 
> Normally, it is said IA-64 system needs IA-32 Execution Layer
> or something emulation software to run IA-32 application.
> How can I run NRPE daemon propperly in the IA64-Linux?
> Are there any compiling option or patches available?
> 
Tha IA-32 execution layer for Linux doesn't seem to be about any time 
soon, according to this.
http://www.gelato.unsw.edu.au/linux-ia64/0309/6649.html

> 
> Need some information.
> 
> X----------------------------------------X
>    Taiji Otsuki      <otsuki at x-trans.jp>
> X----------------------------------------X
-- 
Mvh / Best Regards
Sourcerer / Andreas Ericsson
OP5 AB
+46 (0)733 709032
andreas.ericsson at op5.se


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