Hi we are running our shared web server under vm (UML) distro FC7 its working fine but once in 10-15 days apache shoots virtual machine load very hight upto 20-30 and all swap been consumed. if some how we get into the vm via ssh stop/start apache normalize the vm which clearly show that is apache that freezing and shooting the load on vm.
Mem: 512M swap: 1024M here what i find in logs Dec 17 12:50:51 xxxx kernel: httpd invoked oom-killer: gfp_mask=0x200d2, order=0, oomkilladj=0 Dec 17 12:50:51 xxxx kernel: 1330fd68: [<08053cfc>] dump_stack+0x1c/0x20 Dec 17 12:50:51 xxxx kernel: 1330fd80: [<0808a4f8>] out_of_memory+0x6b/0xd3 Dec 17 12:50:51 xxxx kernel: 1330fda8: [<0808b356>] __alloc_pages+0x1ed/0x26c Dec 17 12:50:51 xxxx kernel: 1330fde8: [<080974b3>] read_swap_cache_async+0x33/0x80 Dec 17 12:50:51 xxxx kernel: 1330fdfc: [<080917e8>] swapin_readahead+0x3c/0x5f Dec 17 12:50:51 xxxx kernel: 1330fe20: [<08091868>] do_swap_page+0x5d/0x1d4 Dec 17 12:50:51 xxxx kernel: 1330fe4c: [<08091fbb>] __handle_mm_fault+0x10a/0x17e Dec 17 12:50:51 xxxx kernel: 1330fe80: [<08054926>] handle_page_fault+0xe2/0x1bc Dec 17 12:50:51 xxxx kernel: 1330feb4: [<08054b5e>] segv+0xa2/0x240 Dec 17 12:50:51 xxxx kernel: 1330ff68: [<08063ae7>] handle_segv+0x32/0x3a Dec 17 12:50:51 xxxx kernel: 1330ff94: [<08063f8f>] userspace+0x117/0x166 Dec 17 12:50:51 xxxx kernel: 1330ffdc: [<08055371>] fork_handler+0x74/0x7c Dec 17 12:50:51 xxxx kernel: 1330fffc: [<a55a5a5a>] 0xa55a5a5a Dec 17 12:50:51 xxxx kernel: Dec 17 12:50:51 xxxx kernel: Mem-info: Dec 17 12:50:51 xxxx kernel: Normal per-cpu: Dec 17 12:51:23 xxxx kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 34 Cold: hi: 62, btch: 15 usd: 60 Dec 17 12:51:28 xxxx kernel: Active:73753 inactive:50187 dirty:0 writeback:4 unstable:0 Dec 17 12:51:29 xxxx kernel: free:702 slab:2098 mapped:670 pagetables:960 bounce:0 Dec 17 12:51:30 xxxx kernel: Normal free:2808kB min:2884kB low:3604kB high:4324kB active:295012kB inactive:200748kB present:520192kB pages_scanned:829898 a ll_unreclaimable? yes Any idea how to make this vm stable? Askar.
