Out of Memory

[Larry Howe]

Suse 9.1, kernel 2.6.5-7.104-default

I'm getting an Out of Memory in the middle of the night. I'm not sure if this 
is due to a memory leak, or it could be related to my backup process, which 
is starting at 02:00. Is there a way to determine which process is hogging 
all the memory? I started to write a shell script to run ps and catch the 
offender, but didn't get very far. Any ideas on how to troubleshoot this 
problem? 

Thanks, Larry 

Here is what shows up in messages:

Sep 12 02:21:59 bashful kernel: Out of Memory: Killed process 10600 
(kdesktop_lock).
Sep 12 02:23:58 bashful kernel: Out of Memory: Killed process 11963 (y2base).
Sep 12 02:24:19 bashful kernel: kdesktop_lock: page allocation failure. 
order:0, mode:0x1d2
Sep 12 02:24:19 bashful kernel: Call Trace:
Sep 12 02:24:19 bashful kernel:  [__alloc_pages+857/864] 
__alloc_pages+0x359/0x360
Sep 12 02:24:19 bashful kernel:  [<c013fc49>] __alloc_pages+0x359/0x360
Sep 12 02:24:19 bashful kernel:  [do_page_cache_readahead+236/304] 
do_page_cache_readahead+0xec/0x130
Sep 12 02:24:19 bashful kernel:  [<c0140e9c>] 
do_page_cache_readahead+0xec/0x130
Sep 12 02:24:19 bashful kernel:  [filemap_nopage+237/944] 
filemap_nopage+0xed/0x3b0
Sep 12 02:24:19 bashful kernel:  [<c013b3cd>] filemap_nopage+0xed/0x3b0
Sep 12 02:24:19 bashful kernel:  [do_no_page+471/1824] do_no_page+0x1d7/0x720
Sep 12 02:24:19 bashful kernel:  [<c01478b7>] do_no_page+0x1d7/0x720
Sep 12 02:24:19 bashful kernel:  [handle_mm_fault+267/2352] 
handle_mm_fault+0x10b/0x930
Sep 12 02:24:19 bashful kernel:  [<c0148acb>] handle_mm_fault+0x10b/0x930
Sep 12 02:24:19 bashful kernel:  [do_page_fault+329/1266] 
do_page_fault+0x149/0x4f2
Sep 12 02:24:20 bashful kernel:  [<c01193f9>] do_page_fault+0x149/0x4f2
Sep 12 02:24:20 bashful kernel:  [timer_interrupt+551/640] 
timer_interrupt+0x227/0x280
Sep 12 02:24:20 bashful kernel:  [<c010dd77>] timer_interrupt+0x227/0x280
Sep 12 02:24:20 bashful kernel:  [__pollwait+0/208] __pollwait+0x0/0xd0
Sep 12 02:24:20 bashful kernel:  [<c016a3f0>] __pollwait+0x0/0xd0
Sep 12 02:24:20 bashful kernel:  [vfs_read+179/256] vfs_read+0xb3/0x100
Sep 12 02:24:20 bashful kernel:  [<c0158e73>] vfs_read+0xb3/0x100
Sep 12 02:24:20 bashful kernel:  [sys_read+129/208] sys_read+0x81/0xd0
Sep 12 02:24:20 bashful kernel:  [<c0159091>] sys_read+0x81/0xd0
Sep 12 02:24:20 bashful kernel:  [do_page_fault+0/1266] 
do_page_fault+0x0/0x4f2
Sep 12 02:24:20 bashful kernel:  [<c01192b0>] do_page_fault+0x0/0x4f2
Sep 12 02:24:20 bashful kernel:  [error_code+45/64] error_code+0x2d/0x40
Sep 12 02:24:20 bashful kernel:  [<c0108e0d>] error_code+0x2d/0x40
Sep 12 02:24:20 bashful kernel:
Sep 12 02:24:20 bashful kernel: kdesktop_lock: page allocation failure. 
order:0, mode:0x1d2
Sep 12 02:24:20 bashful kernel: Call Trace:
Sep 12 02:24:20 bashful kernel:  [__alloc_pages+857/864] 
__alloc_pages+0x359/0x360
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