* linux-2.6-rt patch on ppc and OOM messages
@ 2006-03-29 6:45 emre kara
2006-03-29 7:39 ` Kumar Gala
0 siblings, 1 reply; 3+ messages in thread
From: emre kara @ 2006-03-29 6:45 UTC (permalink / raw)
To: linuxppc-dev
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
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: linux-2.6-rt patch on ppc and OOM messages
2006-03-29 6:45 linux-2.6-rt patch on ppc and OOM messages emre kara
@ 2006-03-29 7:39 ` Kumar Gala
2006-03-29 10:14 ` linux-2.6-rt patch on ppc85xx " emre kara
0 siblings, 1 reply; 3+ messages in thread
From: Kumar Gala @ 2006-03-29 7:39 UTC (permalink / raw)
To: emre kara; +Cc: linuxppc-dev
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
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: linux-2.6-rt patch on ppc85xx and OOM messages
2006-03-29 7:39 ` Kumar Gala
@ 2006-03-29 10:14 ` emre kara
0 siblings, 0 replies; 3+ messages in thread
From: emre kara @ 2006-03-29 10:14 UTC (permalink / raw)
To: Kumar Gala; +Cc: linuxppc-dev
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:
>
> > 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
> 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 = 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
> > _______________________________________________
> > 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
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2006-03-29 7:39 ` Kumar Gala
2006-03-29 10:14 ` linux-2.6-rt patch on ppc85xx " emre kara
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