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From: Martin MOKREJŠ on 22 Jul 2010 07:00
Hi,
is there anybody having the time to comment on this?
Thanks,
Martin

Martin Mokrejs wrote:
> Martin Mokrejs wrote:
>> Hi,
>> I am running a server with 16 GB RAM, which was running some long-time
>> CPU intensive job (a week). It has two SATA drives in RAID mirror mode.
>> Once a week I re-sync the array members (part of the output included below).
>> The hardware is MSI-P45Neo2 with intel quad cpu.
>
> A short follow-up on my own posting:
>
> r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
> r8169 0000:05:00.0: PCI->APIC IRQ transform: INT A -> IRQ 17
> r8169 0000:05:00.0: setting latency timer to 64
> r8169 0000:05:00.0: irq 30 for MSI/MSI-X
> eth0: RTL8168c/8111c at 0xffffc90000020000, 00:21:85:c1:7a:66, XID 1c4000c0 IRQ 30
>
>
>> swapper: page allocation failure. order:0, mode:0x20
>> Pid: 0, comm: swapper Not tainted 2.6.32-default #6
>> Call Trace:
>> <IRQ> [<ffffffff8106c711>] __alloc_pages_nodemask+0x54b/0x595
>> [<ffffffff81409b82>] ? tcp_current_mss+0x43/0x62
>> [<ffffffff8108bad4>] cache_alloc_refill+0x24f/0x485
>> [<ffffffff8108bd90>] __kmalloc+0x86/0xb8
>> [<ffffffff813d9186>] __alloc_skb+0x67/0x154
>> [<ffffffff813d9d8f>] __netdev_alloc_skb+0x1d/0x3a
>> [<ffffffff81316586>] rtl8169_rx_fill+0xa3/0x14f
>> [<ffffffff8131698a>] rtl8169_rx_interrupt+0x358/0x3c2
>> [<ffffffff813190bc>] rtl8169_poll+0x37/0x19a
>> [<ffffffff813df943>] net_rx_action+0x6d/0x139
>> [<ffffffff8103ecab>] __do_softirq+0x91/0x11a
>> [<ffffffff8100c9bc>] call_softirq+0x1c/0x28
>> [<ffffffff8100e447>] do_softirq+0x33/0x6b
>> [<ffffffff8103e80a>] irq_exit+0x36/0x38
>> [<ffffffff8100db97>] do_IRQ+0xa0/0xb7
>> [<ffffffff8100c253>] ret_from_intr+0x0/0xa
>> <EOI> [<ffffffff81012286>] ? mwait_idle+0x66/0x6b
>> [<ffffffff8100ad44>] ? enter_idle+0x20/0x22
>> [<ffffffff8100ad8e>] ? cpu_idle+0x48/0x7e
>> [<ffffffff817fd147>] ? start_secondary+0x17a/0x17e
>> Mem-Info:
>> DMA per-cpu:
>> CPU 0: hi: 0, btch: 1 usd: 0
>> CPU 1: hi: 0, btch: 1 usd: 0
>> CPU 2: hi: 0, btch: 1 usd: 0
>> CPU 3: hi: 0, btch: 1 usd: 0
>> DMA32 per-cpu:
>> CPU 0: hi: 186, btch: 31 usd: 177
>> CPU 1: hi: 186, btch: 31 usd: 148
>> CPU 2: hi: 186, btch: 31 usd: 43
>> CPU 3: hi: 186, btch: 31 usd: 166
>> Normal per-cpu:
>> CPU 0: hi: 186, btch: 31 usd: 193
>> CPU 1: hi: 186, btch: 31 usd: 208
>> CPU 2: hi: 186, btch: 31 usd: 37
>> CPU 3: hi: 186, btch: 31 usd: 186
>> active_anon:1343533 inactive_anon:140362 isolated_anon:64
>> active_file:714465 inactive_file:1753044 isolated_file:0
>> unevictable:0 dirty:11429 writeback:64667 unstable:0
>> free:18535 slab_reclaimable:106621 slab_unreclaimable:18444
>> mapped:11762 shmem:546 pagetables:6610 bounce:0
>> DMA free:15864kB min:12kB low:12kB high:16kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15240kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
>> lowmem_reserve[]: 0 2999 16129 16129
>> DMA32 free:53556kB min:3020kB low:3772kB high:4528kB active_anon:152716kB inactive_anon:39140kB active_file:544600kB inactive_file:1878536kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:3071776kB mlocked:0kB dirty:11680kB writeback:70620kB mapped:160kB shmem:4kB slab_reclaimable:115388kB slab_unreclaimable:12992kB kernel_stack:24kB pagetables:484kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
>> lowmem_reserve[]: 0 0 13130 13130
>> Normal free:4720kB min:13220kB low:16524kB high:19828kB active_anon:5221416kB inactive_anon:522308kB active_file:2313260kB inactive_file:5133640kB unevictable:0kB isolated(anon):256kB isolated(file):0kB present:13445120kB mlocked:0kB dirty:34036kB writeback:188048kB mapped:46888kB shmem:2180kB slab_reclaimable:311096kB slab_unreclaimable:60784kB kernel_stack:2744kB pagetables:25956kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no
>> lowmem_reserve[]: 0 0 0 0
>> DMA: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15864kB
>> DMA32: 1628*4kB 1662*8kB 1702*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 1*4096kB = 53184kB
>> Normal: 94*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 1*4096kB = 4472kB
>> 2469490 total pagecache pages
>> 1566 pages in swap cache
>> Swap cache stats: add 130904, delete 129338, find 316914/317763
>> Free swap = 15167368kB
>> Total swap = 15647288kB
>> 4194288 pages RAM
>> 82473 pages reserved
>> 2444838 pages shared
>> 1693229 pages non-shared
>> ------------[ cut here ]------------
>> WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0xdf/0x13c()
>> Hardware name: MS-7558
>> NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
>> Modules linked in: f71882fg coretemp i2c_i801 firewire_ohci firewire_core
>> Pid: 0, comm: swapper Not tainted 2.6.32-default #6
>> Call Trace:
>> <IRQ> [<ffffffff8103a51e>] warn_slowpath_common+0x77/0x8f
>> [<ffffffff8103a583>] warn_slowpath_fmt+0x3c/0x3e
>> [<ffffffff813ed984>] ? netif_tx_lock+0x3f/0x67
>> [<ffffffff813edad3>] dev_watchdog+0xdf/0x13c
>> [<ffffffff8104899e>] ? __queue_work+0x35/0x3e
>> [<ffffffff81042805>] run_timer_softirq+0x15a/0x1c4
>> [<ffffffff813ed9f4>] ? dev_watchdog+0x0/0x13c
>> [<ffffffff8101cce3>] ? lapic_next_event+0x10/0x14
>> [<ffffffff8103ecab>] __do_softirq+0x91/0x11a
>> [<ffffffff8105553d>] ? tick_program_event+0x25/0x27
>> [<ffffffff8100c9bc>] call_softirq+0x1c/0x28
>> [<ffffffff8100e447>] do_softirq+0x33/0x6b
>> [<ffffffff8103e80a>] irq_exit+0x36/0x38
>> [<ffffffff8101d39d>] smp_apic_timer_interrupt+0x81/0x8f
>> [<ffffffff8100c3b3>] apic_timer_interrupt+0x13/0x20
>> <EOI> [<ffffffff81012286>] ? mwait_idle+0x66/0x6b
>> [<ffffffff8100ad44>] ? enter_idle+0x20/0x22
>> [<ffffffff8100ad8e>] ? cpu_idle+0x48/0x7e
>> [<ffffffff817fd147>] ? start_secondary+0x17a/0x17e
>> ---[ end trace 277e396d24aaa901 ]---
>> r8169: eth0: link up
>
> [cut]
>
>
>> # cat /proc/interrupts
>> CPU0 CPU1 CPU2 CPU3
>> 0: 6622 6607 6535 6668 IO-APIC-edge timer
>> 1: 25945 26055 25838 26187 IO-APIC-edge i8042
>> 2: 0 0 0 0 XT-PIC-XT cascade
>> 4: 0 1 0 0 IO-APIC-edge
>> 8: 14 14 14 13 IO-APIC-edge rtc0
>> 12: 0 0 2 2 IO-APIC-edge i8042
>> 16: 10009479 9993440 9960761 10005048 IO-APIC-fasteoi ahci, uhci_hcd:usb3
>> 17: 31235 30566 30239 31562 IO-APIC-fasteoi pata_jmicron, HDA Intel, firewire_ohci
>> 18: 2 1 1 0 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb8
>> 19: 0 0 0 0 IO-APIC-fasteoi uhci_hcd:usb5, uhci_hcd:usb7
>> 21: 38 38 34 44 IO-APIC-fasteoi uhci_hcd:usb4
>> 22: 50 51 51 51 IO-APIC-fasteoi HDA Intel
>> 23: 172113 171807 171735 171915 IO-APIC-fasteoi ehci_hcd:usb2, uhci_hcd:usb6
>> 29: 94874235 95288996 95218820 94798524 PCI-MSI-edge ahci
>> 30: 54750278 54778157 54873715 54762432 PCI-MSI-edge eth0
>> NMI: 0 0 0 0 Non-maskable interrupts
>> LOC: 3920740067 3913124351 2131868122 2120456788 Local timer interrupts
>> SPU: 0 0 0 0 Spurious interrupts
>> PMI: 0 0 0 0 Performance monitoring interrupts
>> PND: 0 0 0 0 Performance pending work
>> RES: 7266829 7671287 7183417 8073089 Rescheduling interrupts
>> CAL: 76080694 505 78997635 84 Function call interrupts
>> TLB: 34542216 30185814 35666755 33126463 TLB shootdowns
>> TRM: 0 0 0 0 Thermal event interrupts
>> THR: 0 0 0 0 Threshold APIC interrupts
>> MCE: 0 0 0 0 Machine check exceptions
>> MCP: 26365 26365 26365 26365 Machine check polls
>> ERR: 0
>> MIS: 0
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