CentOS 5 - General Support | Forum profile

You can enter the following into the Search function on the bar at the top of the page and help yourself ubuntu grub or better yet ubuntu grub chainload

Two quick questions. Have you -- (1) Read the CentOS wiki page on wireless networking ? (2) Installed the required firmware for your wireless card ?

I assume you are running 64bit! I have a similar sounding app (Informix) that operates better with more shared memory. I have shmmax = 8398046511104. Also changed kernel.sem = 250 32000 128 128 What do you mean by "resist resist giving up memory"? Does this = error message somewhere? Does the app use disk storage? Are you using IO Direct (direct IO) with it if so?

I have seen no evidence posted here. Show us that all memory is in use.

You can find some tips here: http://wiki.centos.org/HowTos/MigrationGuide

you might want to try xchm in rpmforge repo

A possible answer: Apache should not eat so much. Add to httpd.conf line "RLimitMEM 67108864. That should limit each process to 64MB of memory. As a general idea, you managed to figure out when you get to eat so much? It would be better if you stay with "top" while increasing the memory consumption RES column to see who consume the most. My answer: I think it's very right about the memory limitation of...

I did the following, which stops and starts automount (I checked with 'ps aux'). Then I inserted the USB drive and it did not mount it. /sbin/service autofs stop /sbin/service autofs start The /etc/auto.master has only these uncommented lines: /misc /etc/auto.misc /net -hosts +auto.master

Well we can get 1M IO with sgp_dd if we use /dev/sg6 or whatever the corresponding character device is. However if we use the /dev/sdf we only get 512K. I was looking at the stats reported by the storage array, it reports the size of IO as well. I could hook up an analyzer but I am sure it would give the same result. I have also tried using other IO tools besides sgp_dd, I just mentioned dd because most people would be familiar with it.

Thanks for all your help. I finally worked out that I had not copied the exclude in the [updates] section of CentOS-Base.repo file and so had installed the wrong kernel after all.