From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web25913.mail.ukl.yahoo.com (web25913.mail.ukl.yahoo.com [217.146.176.251]) by ozlabs.org (Postfix) with SMTP id 5306A679E7 for ; Wed, 29 Mar 2006 17:52:34 +1100 (EST) Message-ID: <20060329064551.29548.qmail@web25913.mail.ukl.yahoo.com> Date: Wed, 29 Mar 2006 07:45:51 +0100 (BST) From: emre kara Subject: linux-2.6-rt patch on ppc and OOM messages To: linuxppc-dev@ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Dear All, Is Ingo Molnar's realtime-preempt patch compatible with ppc, or is there any work on a porting effort of this patch ? I have made some tests on a 85xx machine with this patch, under heavy load on ethernet interfaces, thw system prints OOM messages on console and hangs.. Thanks. --------------------------console output----- softirq-net-rx/: page allocation failure. order:0, mode:0x20 Call Trace: [C04E3DB0] [C000A60C] show_stack+0x50/0x188 (unreliable) [C04E3DE0] [C004C3EC] __alloc_pages+0x1c8/0x2a4 [C04E3E30] [C0063C90] cache_alloc_refill+0x35c/0x57c [C04E3E80] [C0063FA4] __kmalloc+0xf4/0xfc [C04E3EB0] [C012D460] __alloc_skb+0x58/0x118 [C04E3ED0] [C011AF20] gfar_new_skb+0x40/0xd4 [C04E3EF0] [C011D320] gfar_clean_rx_ring+0x25c/0x634 [C04E3F30] [C011D72C] gfar_poll+0x34/0x140 [C04E3F50] [C013364C] net_rx_action+0x94/0x188 [C04E3F80] [C0026730] ksoftirqd+0x104/0x1b4 [C04E3FC0] [C003779C] kthread+0xf8/0x100 [C04E3FF0] [C0004DB8] kernel_thread+0x44/0x60 Mem-info: DMA per-cpu: cpu 0 hot: high 90, batch 15 used:0 cpu 0 cold: high 30, batch 7 used:0 DMA32 per-cpu: empty Normal per-cpu: empty HighMem per-cpu: empty Free pages: 768kB (0kB HighMem) Active:1650 inactive:2036 dirty:0 writeback:0 unstable:0 free:192 slab:60106 mapped:764 pagetables:29 DMA free:768kB min:2048kB low:2560kB high:3072kB active:6600kB inactive:8144kB present:262144kB pages_scanned:0 all_unreclaimab le? no lowmem_reserve[]: 0 0 0 0 DMA32 free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 768kB DMA32: empty Normal: empty HighMem: empty Swap cache: add 0, delete 0, find 0/0, race 0+0 Free swap = 0kB Total swap = 0kB Free swap: 0kB 65536 pages of RAM 0 pages of HIGHMEM 662 free pages 1180 reserved pages 1249 pages shared 0 pages swap cached printk: 2159030 messages suppressed. ___________________________________________________________ Yahoo! Photos – NEW, now offering a quality print service from just 8p a photo http://uk.photos.yahoo.com