From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nommos.sslcatacombnetworking.com (nommos.sslcatacombnetworking.com [67.18.224.114]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 54C3A679F7 for ; Wed, 29 Mar 2006 18:39:38 +1100 (EST) In-Reply-To: <20060329064551.29548.qmail@web25913.mail.ukl.yahoo.com> References: <20060329064551.29548.qmail@web25913.mail.ukl.yahoo.com> Mime-Version: 1.0 (Apple Message framework v746.3) Content-Type: text/plain; charset=WINDOWS-1252; delsp=yes; format=flowed Message-Id: <77C1FC46-AF49-4807-9AC4-C3DC448F79BF@kernel.crashing.org> From: Kumar Gala Subject: Re: linux-2.6-rt patch on ppc and OOM messages Date: Wed, 29 Mar 2006 01:39:42 -0600 To: emre kara Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mar 29, 2006, at 12:45 AM, emre kara wrote: > 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. Can you try setting the gfar interrupts to SA_INTERRUPT and see what =20 happens. - k > --------------------------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 =3D 768kB > DMA32: empty > Normal: empty > HighMem: empty > Swap cache: add 0, delete 0, find 0/0, race 0+0 > Free swap =3D 0kB > Total swap =3D 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. > > > > =09 > ___________________________________________________________ > Yahoo! Photos =96 NEW, now offering a quality print service from just =20= > 8p a photo http://uk.photos.yahoo.com > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-dev