The OOM messages disappeared but the ethernet
throughput decreased significantly (90MBit for
1518Byte packet, and throughput without the patch is
about 900Bits) and the system can't manage load
balancing between to interfaces,the system acts like
the priorty of tsec0 is higher then tsec1 because of
this, the heavy load on tsec0 blocks packet receiving
on tsec1.

--- Kumar Gala <galak@kernel.crashing.org> wrote:

On Mar 29, 2006, at 12:45 AM, emre kara wrote:

quoted

Dear All,
Is Ingo Molnar's realtime-preempt patch compatible
with ppc, or is there any work on a porting effort

of

quoted

this patch ? I have made some tests on a 85xx

machine

quoted

with this patch, under heavy load on ethernet
interfaces, thw system prints OOM messages on

console

quoted

and hangs..
Thanks.

Can you try setting the gfar interrupts to
SA_INTERRUPT and see what  
happens.

- k

quoted

--------------------------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

quoted

[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

quoted

[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

quoted

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

quoted

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.



		

___________________________________________________________

quoted

Yahoo! Photos – NEW, now offering a quality print

service from just  

quoted

8p a photo http://uk.photos.yahoo.com
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev

		
___________________________________________________________ 
To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com