Hello All,
I've been working on some code for a while, which works fine but every so often I get a killed error? That is the programme crashes and the word killed is in command prompt. As far as I can tell I never used "Killed" as an error so suspect something else (ie a lib) is causing this. I used GLX, OpenGL, SDL image and mixer and thread libs. If anyone has experience can you tell me if this is the problem? That is do any of these give a "Killed" error. Thanks in advance

Check /var/log/messages ; could be the oom-killer (Out-Of-Memory) http://linux-mm.org/OOM_Killer

Also, you may be 'over-extending' some resource (file, thread, etc). There are hard and soft limits for a process. When they hit the soft limit, they get 'notified' (by a signal) and when they hit a hard limit they get killed. Maybe your program is hitting some resource's hard limit. You can get/set these limits with the 'ulimit' command.

Thanks for the help. Please bear with me for a second (I'm an embedded programmer used to interupts and no OS so this is fairly new to me)
I checked my log and found this when I ran the programme

Sep 24 16:19:13 development020 kernel: printk: 242 messages suppressed.
Sep 24 16:19:13 development020 kernel: oom-killer: gfp_mask=0x201d2, order=0
Sep 24 16:19:13 development020 kernel: [<c0144523>] out_of_memory+0x25/0x13a
Sep 24 16:19:13 development020 kernel: [<c014598c>] __alloc_pages+0x1f5/0x275
Sep 24 16:19:13 development020 kernel: [<c0146b3b>] __do_page_cache_readahead+0xc8/0x1e8
Sep 24 16:19:13 development020 kernel: [<c0124657>] do_gettimeofday+0x31/0xce
Sep 24 16:19:13 development020 kernel: [<c0143c34>] filemap_nopage+0x15b/0x313
Sep 24 16:19:13 development020 kernel: [<c014c0f8>] __handle_mm_fault+0x26e/0x740
Sep 24 16:19:13 development020 kernel: [<c0168079>] __user_walk+0xf/0x11
Sep 24 16:19:13 development020 kernel: [<c0220412>] sock_ioctl+0x193/0x1b5
Sep 24 16:19:13 development020 kernel: [<c022027f>] sock_ioctl+0x0/0x1b5
Sep 24 16:19:13 development020 kernel: [<c0124657>] do_gettimeofday+0x31/0xce
Sep 24 16:19:13 development020 kernel: [<c01154b6>] do_page_fault+0x18a/0x481
Sep 24 16:19:13 development020 kernel: [<c011532c>] do_page_fault+0x0/0x481
Sep 24 16:19:13 development020 kernel: [<c01037f9>] error_code+0x39/0x40

I presume this is the oom-killer? If so will the unlimitfix it or does the board I'm running need more memory? Thanks again, it would have taken me days if not more to work this out by myself.

Well, you could read up on that link, but fundamentally you'll have to check your code. It could be a runaway mem issue.
ulimit might(!) fix it....