Re: Simple Program with pthreads(with source) + openssi stable 1.2.2

Okay John,

thanks by correct my example with pthreads. This "patch" is very elegant ;-) and works !!!

But, i have another program ( initially without source code ) and following message appears:

"Cannot move process 775543 - 775543 is a system process"

New doubts:
 
1 - in which conditions the openssi recognizes a specific process as being a system process? is a resident flag on binary? is a specific system call?

2 - how can I change my example (pthreads-test.c) to purposely transforms it on a system process?

Regards, Cleir 


Date: Thu, 9 Apr 2009 13:34:31 +0200
From: [email protected]
To: [email protected]
CC: [email protected]; [email protected]
Subject: Re: [SSI-devel] Simple Program with pthreads(with source) + openssi stable 1.2.2






  


Cleir Araujo wrote:

   

Hello developers,

 

when i try to exec a simple program with pthreads, the

following message appears: "Cannot move process 775543 - 775543 is a
system process".


One strange thing about your test process is that it starts all of the
worker threads then calls pthread_exit(NULL), so the main thread is
defunct while the others are runnning:

john@f:~$ bash-ll
john@f:~$ clusternode_num
6
john@f:~$ where_pid $$
6
john@f:~$ ./calc >/dev/null & 
[1] 437832
john@f:~$ ps -fp 437832
UID             PID       PPID  C STIME TTY          TIME CMD
john         437832     437810  0 13:37 pts/7    00:00:08 [calc] <defunct>

If I "fix" it so the main thread waits for the workers (even though
they will never finish) and then try migrating it I get:

add_thread_group:Cannot move process 438181 (calc) - cannot find all shares
add_thread_group: group(438181)/share imbalance 4/1

(This is on my 2.6.14 system, so it may have bugs that the standard
2.6.11 based system doesn't have).







_________________________________________________________________
Messenger 2009: Instale já!
http://download.live.com

------------------------------------------------------------------------------
Crystal Reports &#45; New Free Runtime and 30 Day Trial
Check out the new simplified licensign option that enables unlimited
royalty&#45;free distribution of the report engine for externally facing 
server and web deployment.
http://p.sf.net/sfu/businessobjects

_______________________________________________
ssic-linux-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ssic-linux-devel