On Wed, 18 Apr 2007 11:13:01 +0400 Pavel Emelianov <[EMAIL PROTECTED]> wrote:
> The out_of_memory() function and SysRq-M handler call > show_mem() to show the current memory usage state. > > This is also helpful to see which slabs are the largest > in the system. > > Thanks Pekka for good idea of how to make it better. > > The nr_pages is stored on kmem_list3 because: > > 1. as Eric pointed out, we do not want to defeat > NUMA optimizations; > 2. we do not need for additional LOCK-ed operation on > altering this field - l3->list_lock is already taken > where needed. > > Made naming more descriptive according to Dave. > > Signed-off-by: Pavel Emelianov <[EMAIL PROTECTED]> > Signed-off-by: Kirill Korotaev <[EMAIL PROTECTED]> > Acked-by: Pekka Enberg <[EMAIL PROTECTED]> > Cc: Eric Dumazet <[EMAIL PROTECTED]> > Cc: Dave Hansen <[EMAIL PROTECTED]> > This is rather a lot of new code and even new locking. Any time we actually need this what-the-heck-is-happening-in-slab info, the reporter is able to work out the problem via /proc/slabinfo. Either by taking a look in there before the system dies completely, or by looking in there after the oom-killing. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
