> What is said in your system messages log? The messages from the OS are at the bottom, aren't very helpful though. ulimit -a , and ulimit -aH don't show any limit at 256MB. But by watching the mem usage through "mrtg", I could clearly see the graphics hitting a ceiling at 256. Then, using an equiv. of "top" ,I could predict a crash to happen in the next few seconds. It might be this : (from http://www.ncsu.edu/itd/hpc/Documents/AIXMemoryModels.php) "32-bit Memory Models : AIX divides memory into 256 MB segments. The default memory model allocates a segment for kernel text and data associated with the user process, a segment for user text, a segment for user stack and data, a segment for shared library text, a segment for library data, and the remaining segments are available to use as shared memory segments. Since user stack and data share a 256 MB segment in this model, user data is restricted to 128 MB to allow room for the stack within the segment."
and More info there : http://www-106.ibm.com/developerworks/eserver/articles/aix4java1.html#IDACDSKH > > Should I put it back to 8MB, or is 128 MB allright ? > > You should only make it larger than the default if you know for certain > there is plenty of free memory and the process size is not in danger of > hitting an OS limit. Well, I think I'll lower the value until I get to a stable situation. 128MB, then 64, etc ... Best Regards, Andrew. the LOGS : >From syslog : Aug 20 11:00:35 srvuxrox squid[9390]: Squid Parent: child process 10924 exited d ue to signal 4 Aug 20 11:00:38 srvuxrox squid[9390]: Squid Parent: child process 19718 started >From AIX Errorlog : LABEL: CORE_DUMP IDENTIFIER: B6048838 Date/Time: Fri Aug 20 11:00:35 2004 Sequence Number: 506 Machine Id: 004652BA4C00 Node Id: srvuxrox Class: S Type: PERM Resource Name: SYSPROC Description SOFTWARE PROGRAM ABNORMALLY TERMINATED Probable Causes SOFTWARE PROGRAM User Causes USER GENERATED SIGNAL Recommended Actions CORRECT THEN RETRY Failure Causes SOFTWARE PROGRAM Recommended Actions RERUN THE APPLICATION PROGRAM IF PROBLEM PERSISTS THEN DO THE FOLLOWING CONTACT APPROPRIATE SERVICE REPRESENTATIVE Detail Data SIGNAL NUMBER 4 USER'S PROCESS ID: 10924 FILE SYSTEM SERIAL NUMBER 5 INODE NUMBER 2 PROCESSOR ID 1 CORE FILE NAME /tmp/core PROGRAM NAME squid ADDITIONAL INFORMATION ?? ?? Impossible de g-E9-n-E9-rer une cha-EE-ne de sympt-F4-mes. ---------------------------------------------------------------------------
